./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.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 c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:05:09,386 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:05:09,460 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:05:09,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:05:09,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:05:09,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:05:09,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:05:09,498 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:05:09,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:05:09,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:05:09,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:05:09,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:05:09,502 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:05:09,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:05:09,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:05:09,504 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:05:09,504 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:05:09,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:05:09,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:05:09,505 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:05:09,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:05:09,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:05:09,507 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:05:09,507 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:05:09,507 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:05:09,508 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:05:09,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:05:09,508 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:05:09,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:05:09,509 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:05:09,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:05:09,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:05:09,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:05:09,510 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:05:09,510 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:05:09,510 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:05:09,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:05:09,511 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:05:09,511 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:05:09,512 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:05:09,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:05:09,513 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c74b9abfd84bef3aa9e712193319c6938e59ac72c91a2b202dc32aee3a54e2e3 [2024-10-14 17:05:09,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:05:09,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:05:09,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:05:09,818 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:05:09,818 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:05:09,820 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2024-10-14 17:05:11,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:05:11,601 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:05:11,605 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_06-ptra_nr.i [2024-10-14 17:05:11,633 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7de46f5b/f64f0f37b40f4f25ba66b60e5711aa92/FLAGd75bb36b9 [2024-10-14 17:05:11,647 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7de46f5b/f64f0f37b40f4f25ba66b60e5711aa92 [2024-10-14 17:05:11,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:05:11,651 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:05:11,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:05:11,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:05:11,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:05:11,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c16c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:11, skipping insertion in model container [2024-10-14 17:05:11,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:05:11" (1/1) ... [2024-10-14 17:05:11,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:05:12,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:05:12,113 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:05:12,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:05:12,229 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:05:12,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12 WrapperNode [2024-10-14 17:05:12,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:05:12,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:05:12,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:05:12,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:05:12,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12" (1/1) ... [2024-10-14 17:05:12,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12" (1/1) ... [2024-10-14 17:05:12,307 INFO L138 Inliner]: procedures = 189, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 211 [2024-10-14 17:05:12,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:05:12,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:05:12,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:05:12,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:05:12,321 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12" (1/1) ... [2024-10-14 17:05:12,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12" (1/1) ... [2024-10-14 17:05:12,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12" (1/1) ... [2024-10-14 17:05:12,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12" (1/1) ... [2024-10-14 17:05:12,352 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12" (1/1) ... [2024-10-14 17:05:12,358 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12" (1/1) ... [2024-10-14 17:05:12,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12" (1/1) ... [2024-10-14 17:05:12,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12" (1/1) ... [2024-10-14 17:05:12,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:05:12,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:05:12,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:05:12,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:05:12,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12" (1/1) ... [2024-10-14 17:05:12,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:05:12,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:05:12,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:05:12,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:05:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:05:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:05:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-14 17:05:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 17:05:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:05:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-14 17:05:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-14 17:05:12,489 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-14 17:05:12,489 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-14 17:05:12,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:05:12,490 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-14 17:05:12,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:05:12,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:05:12,492 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:05:12,660 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:05:12,663 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:05:13,158 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:05:13,159 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:05:13,187 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:05:13,188 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 17:05:13,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:05:13 BoogieIcfgContainer [2024-10-14 17:05:13,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:05:13,190 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:05:13,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:05:13,194 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:05:13,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:05:11" (1/3) ... [2024-10-14 17:05:13,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b2fe7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:05:13, skipping insertion in model container [2024-10-14 17:05:13,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:05:12" (2/3) ... [2024-10-14 17:05:13,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b2fe7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:05:13, skipping insertion in model container [2024-10-14 17:05:13,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:05:13" (3/3) ... [2024-10-14 17:05:13,198 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_06-ptra_nr.i [2024-10-14 17:05:13,218 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:05:13,219 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-10-14 17:05:13,219 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:05:13,330 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 17:05:13,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 250 places, 246 transitions, 496 flow [2024-10-14 17:05:13,481 INFO L124 PetriNetUnfolderBase]: 0/245 cut-off events. [2024-10-14 17:05:13,483 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:13,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 245 events. 0/245 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 94 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-14 17:05:13,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 250 places, 246 transitions, 496 flow [2024-10-14 17:05:13,497 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 245 transitions, 493 flow [2024-10-14 17:05:13,511 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:05:13,520 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;@44349106, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:05:13,520 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-10-14 17:05:13,531 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:05:13,532 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2024-10-14 17:05:13,532 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:13,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:13,533 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] [2024-10-14 17:05:13,533 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:13,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:13,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1414811631, now seen corresponding path program 1 times [2024-10-14 17:05:13,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:13,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352514115] [2024-10-14 17:05:13,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:13,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:14,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:14,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:14,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352514115] [2024-10-14 17:05:14,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352514115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:14,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:14,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:14,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944266037] [2024-10-14 17:05:14,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:14,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:14,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:14,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:14,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:14,989 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 246 [2024-10-14 17:05:14,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 245 transitions, 493 flow. Second operand has 6 states, 6 states have (on average 177.33333333333334) internal successors, (1064), 6 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:14,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:14,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 246 [2024-10-14 17:05:14,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:15,249 INFO L124 PetriNetUnfolderBase]: 220/1088 cut-off events. [2024-10-14 17:05:15,249 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:05:15,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1600 conditions, 1088 events. 220/1088 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5588 event pairs, 220 based on Foata normal form. 0/980 useless extension candidates. Maximal degree in co-relation 1424. Up to 493 conditions per place. [2024-10-14 17:05:15,261 INFO L140 encePairwiseOnDemand]: 228/246 looper letters, 52 selfloop transitions, 15 changer transitions 0/242 dead transitions. [2024-10-14 17:05:15,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 242 transitions, 621 flow [2024-10-14 17:05:15,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:15,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:15,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1126 transitions. [2024-10-14 17:05:15,283 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7628726287262872 [2024-10-14 17:05:15,285 INFO L175 Difference]: Start difference. First operand has 249 places, 245 transitions, 493 flow. Second operand 6 states and 1126 transitions. [2024-10-14 17:05:15,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 242 transitions, 621 flow [2024-10-14 17:05:15,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 242 transitions, 620 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:05:15,298 INFO L231 Difference]: Finished difference. Result has 250 places, 242 transitions, 516 flow [2024-10-14 17:05:15,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=516, PETRI_PLACES=250, PETRI_TRANSITIONS=242} [2024-10-14 17:05:15,308 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 1 predicate places. [2024-10-14 17:05:15,309 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 242 transitions, 516 flow [2024-10-14 17:05:15,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.33333333333334) internal successors, (1064), 6 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:15,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:15,311 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] [2024-10-14 17:05:15,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:05:15,312 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:15,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:15,313 INFO L85 PathProgramCache]: Analyzing trace with hash -140169175, now seen corresponding path program 1 times [2024-10-14 17:05:15,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:15,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594222855] [2024-10-14 17:05:15,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:15,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:15,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:15,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:15,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594222855] [2024-10-14 17:05:15,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594222855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:15,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:15,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:15,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551823933] [2024-10-14 17:05:15,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:15,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:15,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:15,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:15,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:16,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 246 [2024-10-14 17:05:16,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 242 transitions, 516 flow. Second operand has 6 states, 6 states have (on average 177.33333333333334) internal successors, (1064), 6 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:16,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:16,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 246 [2024-10-14 17:05:16,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:16,368 INFO L124 PetriNetUnfolderBase]: 220/1085 cut-off events. [2024-10-14 17:05:16,369 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:16,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1612 conditions, 1085 events. 220/1085 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5587 event pairs, 220 based on Foata normal form. 0/980 useless extension candidates. Maximal degree in co-relation 1449. Up to 493 conditions per place. [2024-10-14 17:05:16,379 INFO L140 encePairwiseOnDemand]: 228/246 looper letters, 52 selfloop transitions, 15 changer transitions 0/239 dead transitions. [2024-10-14 17:05:16,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 239 transitions, 644 flow [2024-10-14 17:05:16,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:16,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:16,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1126 transitions. [2024-10-14 17:05:16,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7628726287262872 [2024-10-14 17:05:16,385 INFO L175 Difference]: Start difference. First operand has 250 places, 242 transitions, 516 flow. Second operand 6 states and 1126 transitions. [2024-10-14 17:05:16,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 239 transitions, 644 flow [2024-10-14 17:05:16,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 239 transitions, 614 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:05:16,395 INFO L231 Difference]: Finished difference. Result has 247 places, 239 transitions, 510 flow [2024-10-14 17:05:16,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=510, PETRI_PLACES=247, PETRI_TRANSITIONS=239} [2024-10-14 17:05:16,396 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, -2 predicate places. [2024-10-14 17:05:16,396 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 239 transitions, 510 flow [2024-10-14 17:05:16,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.33333333333334) internal successors, (1064), 6 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:16,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:16,398 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] [2024-10-14 17:05:16,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:05:16,398 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:16,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:16,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1333061518, now seen corresponding path program 1 times [2024-10-14 17:05:16,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:16,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479512266] [2024-10-14 17:05:16,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:16,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:16,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:16,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:16,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479512266] [2024-10-14 17:05:16,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479512266] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:16,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:16,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:05:16,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937240802] [2024-10-14 17:05:16,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:16,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:05:16,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:16,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:05:16,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:05:16,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 246 [2024-10-14 17:05:16,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 239 transitions, 510 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:16,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:16,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 246 [2024-10-14 17:05:16,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:16,551 INFO L124 PetriNetUnfolderBase]: 16/374 cut-off events. [2024-10-14 17:05:16,551 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:16,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 374 events. 16/374 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 774 event pairs, 16 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 291. Up to 47 conditions per place. [2024-10-14 17:05:16,553 INFO L140 encePairwiseOnDemand]: 243/246 looper letters, 14 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2024-10-14 17:05:16,553 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 238 transitions, 540 flow [2024-10-14 17:05:16,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:05:16,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:05:16,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 704 transitions. [2024-10-14 17:05:16,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9539295392953929 [2024-10-14 17:05:16,556 INFO L175 Difference]: Start difference. First operand has 247 places, 239 transitions, 510 flow. Second operand 3 states and 704 transitions. [2024-10-14 17:05:16,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 238 transitions, 540 flow [2024-10-14 17:05:16,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 238 transitions, 510 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:05:16,561 INFO L231 Difference]: Finished difference. Result has 243 places, 238 transitions, 482 flow [2024-10-14 17:05:16,561 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=243, PETRI_TRANSITIONS=238} [2024-10-14 17:05:16,562 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, -6 predicate places. [2024-10-14 17:05:16,563 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 238 transitions, 482 flow [2024-10-14 17:05:16,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:16,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:16,564 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] [2024-10-14 17:05:16,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:05:16,564 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:16,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:16,565 INFO L85 PathProgramCache]: Analyzing trace with hash 894526032, now seen corresponding path program 1 times [2024-10-14 17:05:16,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:16,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738895533] [2024-10-14 17:05:16,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:16,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:16,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:16,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738895533] [2024-10-14 17:05:16,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738895533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:16,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:16,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:05:16,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081183176] [2024-10-14 17:05:16,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:16,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:05:16,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:16,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:05:16,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:05:16,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 246 [2024-10-14 17:05:16,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 238 transitions, 482 flow. Second operand has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:16,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:16,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 246 [2024-10-14 17:05:16,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:16,691 INFO L124 PetriNetUnfolderBase]: 24/451 cut-off events. [2024-10-14 17:05:16,691 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:05:16,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 451 events. 24/451 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1212 event pairs, 24 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 458. Up to 63 conditions per place. [2024-10-14 17:05:16,694 INFO L140 encePairwiseOnDemand]: 240/246 looper letters, 15 selfloop transitions, 1 changer transitions 0/233 dead transitions. [2024-10-14 17:05:16,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 233 transitions, 504 flow [2024-10-14 17:05:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:05:16,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:05:16,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 696 transitions. [2024-10-14 17:05:16,696 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.943089430894309 [2024-10-14 17:05:16,696 INFO L175 Difference]: Start difference. First operand has 243 places, 238 transitions, 482 flow. Second operand 3 states and 696 transitions. [2024-10-14 17:05:16,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 233 transitions, 504 flow [2024-10-14 17:05:16,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 233 transitions, 500 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:05:16,700 INFO L231 Difference]: Finished difference. Result has 238 places, 233 transitions, 470 flow [2024-10-14 17:05:16,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=238, PETRI_TRANSITIONS=233} [2024-10-14 17:05:16,702 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, -11 predicate places. [2024-10-14 17:05:16,702 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 233 transitions, 470 flow [2024-10-14 17:05:16,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.0) internal successors, (678), 3 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:16,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:16,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:16,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:05:16,703 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:16,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:16,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1980016780, now seen corresponding path program 1 times [2024-10-14 17:05:16,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:16,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3439570] [2024-10-14 17:05:16,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:16,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:17,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:17,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:17,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3439570] [2024-10-14 17:05:17,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3439570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:17,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:17,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:17,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674659392] [2024-10-14 17:05:17,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:17,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:17,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:17,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:17,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:17,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 246 [2024-10-14 17:05:17,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 233 transitions, 470 flow. Second operand has 6 states, 6 states have (on average 178.16666666666666) internal successors, (1069), 6 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:17,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:17,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 246 [2024-10-14 17:05:17,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:17,764 INFO L124 PetriNetUnfolderBase]: 288/1228 cut-off events. [2024-10-14 17:05:17,765 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:17,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1881 conditions, 1228 events. 288/1228 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6573 event pairs, 288 based on Foata normal form. 0/1167 useless extension candidates. Maximal degree in co-relation 1807. Up to 643 conditions per place. [2024-10-14 17:05:17,770 INFO L140 encePairwiseOnDemand]: 240/246 looper letters, 66 selfloop transitions, 5 changer transitions 0/232 dead transitions. [2024-10-14 17:05:17,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 232 transitions, 610 flow [2024-10-14 17:05:17,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:17,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:17,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1116 transitions. [2024-10-14 17:05:17,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7560975609756098 [2024-10-14 17:05:17,774 INFO L175 Difference]: Start difference. First operand has 238 places, 233 transitions, 470 flow. Second operand 6 states and 1116 transitions. [2024-10-14 17:05:17,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 232 transitions, 610 flow [2024-10-14 17:05:17,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 232 transitions, 609 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:05:17,778 INFO L231 Difference]: Finished difference. Result has 241 places, 232 transitions, 477 flow [2024-10-14 17:05:17,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=477, PETRI_PLACES=241, PETRI_TRANSITIONS=232} [2024-10-14 17:05:17,780 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, -8 predicate places. [2024-10-14 17:05:17,780 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 232 transitions, 477 flow [2024-10-14 17:05:17,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.16666666666666) internal successors, (1069), 6 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:17,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:17,781 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:17,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:05:17,781 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:17,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:17,782 INFO L85 PathProgramCache]: Analyzing trace with hash -666701934, now seen corresponding path program 1 times [2024-10-14 17:05:17,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:17,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122415099] [2024-10-14 17:05:17,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:17,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:17,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:17,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:17,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122415099] [2024-10-14 17:05:17,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122415099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:17,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:17,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:05:17,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853337124] [2024-10-14 17:05:17,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:17,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:05:17,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:17,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:05:17,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:05:17,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 246 [2024-10-14 17:05:17,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 232 transitions, 477 flow. Second operand has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:17,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:17,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 246 [2024-10-14 17:05:17,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:17,955 INFO L124 PetriNetUnfolderBase]: 6/295 cut-off events. [2024-10-14 17:05:17,955 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:17,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 295 events. 6/295 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 392 event pairs, 6 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 266. Up to 23 conditions per place. [2024-10-14 17:05:17,956 INFO L140 encePairwiseOnDemand]: 243/246 looper letters, 10 selfloop transitions, 2 changer transitions 0/231 dead transitions. [2024-10-14 17:05:17,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 231 transitions, 499 flow [2024-10-14 17:05:17,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:05:17,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:05:17,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 712 transitions. [2024-10-14 17:05:17,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.964769647696477 [2024-10-14 17:05:17,959 INFO L175 Difference]: Start difference. First operand has 241 places, 232 transitions, 477 flow. Second operand 3 states and 712 transitions. [2024-10-14 17:05:17,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 231 transitions, 499 flow [2024-10-14 17:05:17,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 231 transitions, 489 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:05:17,963 INFO L231 Difference]: Finished difference. Result has 237 places, 231 transitions, 469 flow [2024-10-14 17:05:17,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=469, PETRI_PLACES=237, PETRI_TRANSITIONS=231} [2024-10-14 17:05:17,966 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, -12 predicate places. [2024-10-14 17:05:17,967 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 231 transitions, 469 flow [2024-10-14 17:05:17,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:17,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:17,968 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:17,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 17:05:17,968 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:17,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:17,968 INFO L85 PathProgramCache]: Analyzing trace with hash 405266166, now seen corresponding path program 1 times [2024-10-14 17:05:17,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:17,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716294185] [2024-10-14 17:05:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:17,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:18,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:18,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:18,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716294185] [2024-10-14 17:05:18,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716294185] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:18,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:18,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:05:18,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660167490] [2024-10-14 17:05:18,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:18,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:05:18,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:18,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:05:18,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:05:18,041 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 246 [2024-10-14 17:05:18,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 231 transitions, 469 flow. Second operand has 3 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:18,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:18,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 246 [2024-10-14 17:05:18,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:18,086 INFO L124 PetriNetUnfolderBase]: 4/292 cut-off events. [2024-10-14 17:05:18,087 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-14 17:05:18,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 292 events. 4/292 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 254 event pairs, 4 based on Foata normal form. 0/277 useless extension candidates. Maximal degree in co-relation 253. Up to 15 conditions per place. [2024-10-14 17:05:18,088 INFO L140 encePairwiseOnDemand]: 244/246 looper letters, 7 selfloop transitions, 1 changer transitions 0/230 dead transitions. [2024-10-14 17:05:18,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 230 transitions, 483 flow [2024-10-14 17:05:18,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:05:18,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:05:18,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 720 transitions. [2024-10-14 17:05:18,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.975609756097561 [2024-10-14 17:05:18,091 INFO L175 Difference]: Start difference. First operand has 237 places, 231 transitions, 469 flow. Second operand 3 states and 720 transitions. [2024-10-14 17:05:18,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 230 transitions, 483 flow [2024-10-14 17:05:18,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 230 transitions, 479 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:05:18,095 INFO L231 Difference]: Finished difference. Result has 236 places, 230 transitions, 465 flow [2024-10-14 17:05:18,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=465, PETRI_PLACES=236, PETRI_TRANSITIONS=230} [2024-10-14 17:05:18,096 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, -13 predicate places. [2024-10-14 17:05:18,096 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 230 transitions, 465 flow [2024-10-14 17:05:18,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 238.0) internal successors, (714), 3 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:18,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:18,097 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:18,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:05:18,097 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:18,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:18,098 INFO L85 PathProgramCache]: Analyzing trace with hash 2032503093, now seen corresponding path program 1 times [2024-10-14 17:05:18,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:18,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157836375] [2024-10-14 17:05:18,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:18,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:18,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:18,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:18,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157836375] [2024-10-14 17:05:18,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157836375] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:18,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:18,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:18,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500166951] [2024-10-14 17:05:18,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:18,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:18,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:18,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:18,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:19,148 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 246 [2024-10-14 17:05:19,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 230 transitions, 465 flow. Second operand has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:19,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:19,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 246 [2024-10-14 17:05:19,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:19,609 INFO L124 PetriNetUnfolderBase]: 316/1536 cut-off events. [2024-10-14 17:05:19,609 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:05:19,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2276 conditions, 1536 events. 316/1536 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 9128 event pairs, 32 based on Foata normal form. 0/1445 useless extension candidates. Maximal degree in co-relation 2203. Up to 388 conditions per place. [2024-10-14 17:05:19,615 INFO L140 encePairwiseOnDemand]: 218/246 looper letters, 107 selfloop transitions, 70 changer transitions 0/342 dead transitions. [2024-10-14 17:05:19,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 342 transitions, 1043 flow [2024-10-14 17:05:19,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:19,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:19,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1265 transitions. [2024-10-14 17:05:19,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8570460704607046 [2024-10-14 17:05:19,619 INFO L175 Difference]: Start difference. First operand has 236 places, 230 transitions, 465 flow. Second operand 6 states and 1265 transitions. [2024-10-14 17:05:19,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 342 transitions, 1043 flow [2024-10-14 17:05:19,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 342 transitions, 1042 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:05:19,631 INFO L231 Difference]: Finished difference. Result has 244 places, 300 transitions, 942 flow [2024-10-14 17:05:19,631 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=942, PETRI_PLACES=244, PETRI_TRANSITIONS=300} [2024-10-14 17:05:19,632 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, -5 predicate places. [2024-10-14 17:05:19,632 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 300 transitions, 942 flow [2024-10-14 17:05:19,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.33333333333334) internal successors, (1124), 6 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:19,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:19,637 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:19,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:05:19,638 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:19,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:19,638 INFO L85 PathProgramCache]: Analyzing trace with hash -30028060, now seen corresponding path program 1 times [2024-10-14 17:05:19,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:19,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640077039] [2024-10-14 17:05:19,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:19,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:20,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:20,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:20,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640077039] [2024-10-14 17:05:20,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640077039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:20,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:20,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:20,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446949590] [2024-10-14 17:05:20,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:20,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:20,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:20,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:20,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:20,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 246 [2024-10-14 17:05:20,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 300 transitions, 942 flow. Second operand has 6 states, 6 states have (on average 188.16666666666666) internal successors, (1129), 6 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:20,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:20,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 246 [2024-10-14 17:05:20,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:20,973 INFO L124 PetriNetUnfolderBase]: 588/2321 cut-off events. [2024-10-14 17:05:20,973 INFO L125 PetriNetUnfolderBase]: For 603/609 co-relation queries the response was YES. [2024-10-14 17:05:20,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4719 conditions, 2321 events. 588/2321 cut-off events. For 603/609 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 15406 event pairs, 222 based on Foata normal form. 0/2210 useless extension candidates. Maximal degree in co-relation 4644. Up to 1090 conditions per place. [2024-10-14 17:05:20,989 INFO L140 encePairwiseOnDemand]: 231/246 looper letters, 114 selfloop transitions, 48 changer transitions 0/351 dead transitions. [2024-10-14 17:05:20,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 351 transitions, 1438 flow [2024-10-14 17:05:20,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:20,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:20,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1202 transitions. [2024-10-14 17:05:20,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8143631436314364 [2024-10-14 17:05:20,992 INFO L175 Difference]: Start difference. First operand has 244 places, 300 transitions, 942 flow. Second operand 6 states and 1202 transitions. [2024-10-14 17:05:20,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 351 transitions, 1438 flow [2024-10-14 17:05:21,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 351 transitions, 1438 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:05:21,007 INFO L231 Difference]: Finished difference. Result has 254 places, 343 transitions, 1330 flow [2024-10-14 17:05:21,008 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1330, PETRI_PLACES=254, PETRI_TRANSITIONS=343} [2024-10-14 17:05:21,009 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 5 predicate places. [2024-10-14 17:05:21,010 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 343 transitions, 1330 flow [2024-10-14 17:05:21,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.16666666666666) internal successors, (1129), 6 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:21,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:21,011 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:21,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:05:21,012 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:21,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:21,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1744883326, now seen corresponding path program 1 times [2024-10-14 17:05:21,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:21,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929172252] [2024-10-14 17:05:21,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:21,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:21,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:21,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:21,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929172252] [2024-10-14 17:05:21,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929172252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:21,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:21,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:21,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828139168] [2024-10-14 17:05:21,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:21,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:21,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:21,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:21,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:21,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 246 [2024-10-14 17:05:21,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 343 transitions, 1330 flow. Second operand has 6 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:21,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:21,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 246 [2024-10-14 17:05:21,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:22,682 INFO L124 PetriNetUnfolderBase]: 712/2775 cut-off events. [2024-10-14 17:05:22,682 INFO L125 PetriNetUnfolderBase]: For 1556/1606 co-relation queries the response was YES. [2024-10-14 17:05:22,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6389 conditions, 2775 events. 712/2775 cut-off events. For 1556/1606 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 19459 event pairs, 57 based on Foata normal form. 0/2681 useless extension candidates. Maximal degree in co-relation 6307. Up to 927 conditions per place. [2024-10-14 17:05:22,700 INFO L140 encePairwiseOnDemand]: 223/246 looper letters, 135 selfloop transitions, 136 changer transitions 4/483 dead transitions. [2024-10-14 17:05:22,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 483 transitions, 2636 flow [2024-10-14 17:05:22,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:22,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:22,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1265 transitions. [2024-10-14 17:05:22,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8570460704607046 [2024-10-14 17:05:22,704 INFO L175 Difference]: Start difference. First operand has 254 places, 343 transitions, 1330 flow. Second operand 6 states and 1265 transitions. [2024-10-14 17:05:22,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 483 transitions, 2636 flow [2024-10-14 17:05:22,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 483 transitions, 2618 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-14 17:05:22,723 INFO L231 Difference]: Finished difference. Result has 264 places, 474 transitions, 2678 flow [2024-10-14 17:05:22,724 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=1312, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2678, PETRI_PLACES=264, PETRI_TRANSITIONS=474} [2024-10-14 17:05:22,725 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 15 predicate places. [2024-10-14 17:05:22,727 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 474 transitions, 2678 flow [2024-10-14 17:05:22,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:22,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:22,728 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:22,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:05:22,728 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:22,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:22,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1104565399, now seen corresponding path program 1 times [2024-10-14 17:05:22,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:22,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814842036] [2024-10-14 17:05:22,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:22,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:23,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:23,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:23,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814842036] [2024-10-14 17:05:23,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814842036] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:23,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:23,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:05:23,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754010562] [2024-10-14 17:05:23,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:23,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:05:23,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:23,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:05:23,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:05:23,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 246 [2024-10-14 17:05:23,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 474 transitions, 2678 flow. Second operand has 6 states, 6 states have (on average 188.16666666666666) internal successors, (1129), 6 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:23,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:23,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 246 [2024-10-14 17:05:23,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:24,236 INFO L124 PetriNetUnfolderBase]: 968/3446 cut-off events. [2024-10-14 17:05:24,236 INFO L125 PetriNetUnfolderBase]: For 3836/3908 co-relation queries the response was YES. [2024-10-14 17:05:24,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9687 conditions, 3446 events. 968/3446 cut-off events. For 3836/3908 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 24877 event pairs, 207 based on Foata normal form. 0/3359 useless extension candidates. Maximal degree in co-relation 9602. Up to 1565 conditions per place. [2024-10-14 17:05:24,269 INFO L140 encePairwiseOnDemand]: 231/246 looper letters, 239 selfloop transitions, 62 changer transitions 0/531 dead transitions. [2024-10-14 17:05:24,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 531 transitions, 3622 flow [2024-10-14 17:05:24,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:05:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:05:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1202 transitions. [2024-10-14 17:05:24,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8143631436314364 [2024-10-14 17:05:24,273 INFO L175 Difference]: Start difference. First operand has 264 places, 474 transitions, 2678 flow. Second operand 6 states and 1202 transitions. [2024-10-14 17:05:24,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 531 transitions, 3622 flow [2024-10-14 17:05:24,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 531 transitions, 3586 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-14 17:05:24,302 INFO L231 Difference]: Finished difference. Result has 274 places, 523 transitions, 3268 flow [2024-10-14 17:05:24,303 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=2642, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3268, PETRI_PLACES=274, PETRI_TRANSITIONS=523} [2024-10-14 17:05:24,304 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 25 predicate places. [2024-10-14 17:05:24,304 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 523 transitions, 3268 flow [2024-10-14 17:05:24,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.16666666666666) internal successors, (1129), 6 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:24,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:24,305 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:24,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 17:05:24,305 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:24,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:24,306 INFO L85 PathProgramCache]: Analyzing trace with hash 628333578, now seen corresponding path program 1 times [2024-10-14 17:05:24,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:24,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723982590] [2024-10-14 17:05:24,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:24,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:25,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:25,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:25,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723982590] [2024-10-14 17:05:25,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723982590] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:25,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:25,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:25,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864636116] [2024-10-14 17:05:25,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:25,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:25,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:25,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:25,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:26,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 246 [2024-10-14 17:05:26,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 523 transitions, 3268 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:26,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:26,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 246 [2024-10-14 17:05:26,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:28,264 INFO L124 PetriNetUnfolderBase]: 1482/4987 cut-off events. [2024-10-14 17:05:28,264 INFO L125 PetriNetUnfolderBase]: For 8591/8686 co-relation queries the response was YES. [2024-10-14 17:05:28,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15982 conditions, 4987 events. 1482/4987 cut-off events. For 8591/8686 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 40113 event pairs, 100 based on Foata normal form. 47/4952 useless extension candidates. Maximal degree in co-relation 15887. Up to 955 conditions per place. [2024-10-14 17:05:28,304 INFO L140 encePairwiseOnDemand]: 213/246 looper letters, 442 selfloop transitions, 192 changer transitions 1/834 dead transitions. [2024-10-14 17:05:28,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 834 transitions, 7074 flow [2024-10-14 17:05:28,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 17:05:28,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-14 17:05:28,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3428 transitions. [2024-10-14 17:05:28,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7334189131364998 [2024-10-14 17:05:28,318 INFO L175 Difference]: Start difference. First operand has 274 places, 523 transitions, 3268 flow. Second operand 19 states and 3428 transitions. [2024-10-14 17:05:28,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 834 transitions, 7074 flow [2024-10-14 17:05:28,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 834 transitions, 6892 flow, removed 91 selfloop flow, removed 0 redundant places. [2024-10-14 17:05:28,395 INFO L231 Difference]: Finished difference. Result has 301 places, 654 transitions, 5172 flow [2024-10-14 17:05:28,396 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=3156, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5172, PETRI_PLACES=301, PETRI_TRANSITIONS=654} [2024-10-14 17:05:28,397 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 52 predicate places. [2024-10-14 17:05:28,397 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 654 transitions, 5172 flow [2024-10-14 17:05:28,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:28,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:28,398 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:28,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 17:05:28,398 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:28,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:28,399 INFO L85 PathProgramCache]: Analyzing trace with hash 236384718, now seen corresponding path program 2 times [2024-10-14 17:05:28,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:28,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178697358] [2024-10-14 17:05:28,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:28,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:29,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:29,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:29,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178697358] [2024-10-14 17:05:29,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178697358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:29,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:29,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:29,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099007528] [2024-10-14 17:05:29,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:29,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:29,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:29,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:29,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:30,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 246 [2024-10-14 17:05:30,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 654 transitions, 5172 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:30,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:30,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 246 [2024-10-14 17:05:30,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:32,308 INFO L124 PetriNetUnfolderBase]: 2093/7076 cut-off events. [2024-10-14 17:05:32,309 INFO L125 PetriNetUnfolderBase]: For 17051/17260 co-relation queries the response was YES. [2024-10-14 17:05:32,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24243 conditions, 7076 events. 2093/7076 cut-off events. For 17051/17260 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 64383 event pairs, 177 based on Foata normal form. 62/7033 useless extension candidates. Maximal degree in co-relation 24135. Up to 1548 conditions per place. [2024-10-14 17:05:32,370 INFO L140 encePairwiseOnDemand]: 209/246 looper letters, 444 selfloop transitions, 258 changer transitions 4/905 dead transitions. [2024-10-14 17:05:32,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 905 transitions, 8672 flow [2024-10-14 17:05:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 17:05:32,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-14 17:05:32,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2631 transitions. [2024-10-14 17:05:32,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7639372822299652 [2024-10-14 17:05:32,381 INFO L175 Difference]: Start difference. First operand has 301 places, 654 transitions, 5172 flow. Second operand 14 states and 2631 transitions. [2024-10-14 17:05:32,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 905 transitions, 8672 flow [2024-10-14 17:05:32,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 905 transitions, 8609 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-10-14 17:05:32,495 INFO L231 Difference]: Finished difference. Result has 319 places, 733 transitions, 7289 flow [2024-10-14 17:05:32,498 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=5131, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=7289, PETRI_PLACES=319, PETRI_TRANSITIONS=733} [2024-10-14 17:05:32,499 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 70 predicate places. [2024-10-14 17:05:32,499 INFO L471 AbstractCegarLoop]: Abstraction has has 319 places, 733 transitions, 7289 flow [2024-10-14 17:05:32,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:32,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:32,501 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:32,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 17:05:32,502 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:32,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:32,502 INFO L85 PathProgramCache]: Analyzing trace with hash 707400812, now seen corresponding path program 3 times [2024-10-14 17:05:32,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:32,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851781529] [2024-10-14 17:05:32,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:32,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:33,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:33,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:33,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851781529] [2024-10-14 17:05:33,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851781529] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:33,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:33,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:33,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125373000] [2024-10-14 17:05:33,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:33,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:33,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:33,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:33,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:34,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 246 [2024-10-14 17:05:34,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 733 transitions, 7289 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:34,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:34,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 246 [2024-10-14 17:05:34,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:36,881 INFO L124 PetriNetUnfolderBase]: 2160/7289 cut-off events. [2024-10-14 17:05:36,881 INFO L125 PetriNetUnfolderBase]: For 25985/26207 co-relation queries the response was YES. [2024-10-14 17:05:36,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27077 conditions, 7289 events. 2160/7289 cut-off events. For 25985/26207 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 66260 event pairs, 212 based on Foata normal form. 82/7257 useless extension candidates. Maximal degree in co-relation 26958. Up to 1395 conditions per place. [2024-10-14 17:05:36,941 INFO L140 encePairwiseOnDemand]: 221/246 looper letters, 538 selfloop transitions, 173 changer transitions 1/911 dead transitions. [2024-10-14 17:05:36,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 911 transitions, 10333 flow [2024-10-14 17:05:36,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 17:05:36,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-14 17:05:36,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3403 transitions. [2024-10-14 17:05:36,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7280701754385965 [2024-10-14 17:05:36,960 INFO L175 Difference]: Start difference. First operand has 319 places, 733 transitions, 7289 flow. Second operand 19 states and 3403 transitions. [2024-10-14 17:05:36,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 911 transitions, 10333 flow [2024-10-14 17:05:37,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 911 transitions, 10328 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 17:05:37,119 INFO L231 Difference]: Finished difference. Result has 343 places, 790 transitions, 8556 flow [2024-10-14 17:05:37,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=7284, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=733, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=8556, PETRI_PLACES=343, PETRI_TRANSITIONS=790} [2024-10-14 17:05:37,121 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 94 predicate places. [2024-10-14 17:05:37,121 INFO L471 AbstractCegarLoop]: Abstraction has has 343 places, 790 transitions, 8556 flow [2024-10-14 17:05:37,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:37,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:37,123 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:37,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 17:05:37,123 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:37,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:37,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1000190098, now seen corresponding path program 4 times [2024-10-14 17:05:37,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:37,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374340268] [2024-10-14 17:05:37,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:37,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:38,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:38,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:38,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374340268] [2024-10-14 17:05:38,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374340268] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:38,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:38,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:38,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897445479] [2024-10-14 17:05:38,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:38,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:38,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:38,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:38,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:39,130 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 246 [2024-10-14 17:05:39,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 790 transitions, 8556 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:39,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:39,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 246 [2024-10-14 17:05:39,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:41,829 INFO L124 PetriNetUnfolderBase]: 2794/9486 cut-off events. [2024-10-14 17:05:41,830 INFO L125 PetriNetUnfolderBase]: For 40725/41042 co-relation queries the response was YES. [2024-10-14 17:05:41,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36473 conditions, 9486 events. 2794/9486 cut-off events. For 40725/41042 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 93241 event pairs, 197 based on Foata normal form. 109/9473 useless extension candidates. Maximal degree in co-relation 36344. Up to 1814 conditions per place. [2024-10-14 17:05:41,914 INFO L140 encePairwiseOnDemand]: 209/246 looper letters, 548 selfloop transitions, 295 changer transitions 4/1046 dead transitions. [2024-10-14 17:05:41,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 1046 transitions, 12984 flow [2024-10-14 17:05:41,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 17:05:41,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-14 17:05:42,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2804 transitions. [2024-10-14 17:05:42,013 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7598915989159891 [2024-10-14 17:05:42,013 INFO L175 Difference]: Start difference. First operand has 343 places, 790 transitions, 8556 flow. Second operand 15 states and 2804 transitions. [2024-10-14 17:05:42,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 1046 transitions, 12984 flow [2024-10-14 17:05:42,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 1046 transitions, 12853 flow, removed 33 selfloop flow, removed 9 redundant places. [2024-10-14 17:05:42,245 INFO L231 Difference]: Finished difference. Result has 359 places, 876 transitions, 11226 flow [2024-10-14 17:05:42,246 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=8460, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=790, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=210, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11226, PETRI_PLACES=359, PETRI_TRANSITIONS=876} [2024-10-14 17:05:42,247 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 110 predicate places. [2024-10-14 17:05:42,247 INFO L471 AbstractCegarLoop]: Abstraction has has 359 places, 876 transitions, 11226 flow [2024-10-14 17:05:42,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:42,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:42,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:42,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 17:05:42,249 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:42,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:42,249 INFO L85 PathProgramCache]: Analyzing trace with hash 909852236, now seen corresponding path program 1 times [2024-10-14 17:05:42,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:42,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945863195] [2024-10-14 17:05:42,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:42,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:43,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:43,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945863195] [2024-10-14 17:05:43,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945863195] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:43,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:43,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:43,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597754970] [2024-10-14 17:05:43,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:43,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:43,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:43,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:43,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:44,252 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 246 [2024-10-14 17:05:44,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 876 transitions, 11226 flow. Second operand has 13 states, 13 states have (on average 174.69230769230768) internal successors, (2271), 13 states have internal predecessors, (2271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:44,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:44,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 246 [2024-10-14 17:05:44,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:46,949 INFO L124 PetriNetUnfolderBase]: 3317/10482 cut-off events. [2024-10-14 17:05:46,949 INFO L125 PetriNetUnfolderBase]: For 55006/55319 co-relation queries the response was YES. [2024-10-14 17:05:47,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43385 conditions, 10482 events. 3317/10482 cut-off events. For 55006/55319 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 102006 event pairs, 495 based on Foata normal form. 60/10376 useless extension candidates. Maximal degree in co-relation 43245. Up to 2371 conditions per place. [2024-10-14 17:05:47,041 INFO L140 encePairwiseOnDemand]: 225/246 looper letters, 504 selfloop transitions, 173 changer transitions 0/1014 dead transitions. [2024-10-14 17:05:47,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 1014 transitions, 14214 flow [2024-10-14 17:05:47,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 17:05:47,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-14 17:05:47,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2574 transitions. [2024-10-14 17:05:47,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7473867595818815 [2024-10-14 17:05:47,045 INFO L175 Difference]: Start difference. First operand has 359 places, 876 transitions, 11226 flow. Second operand 14 states and 2574 transitions. [2024-10-14 17:05:47,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 1014 transitions, 14214 flow [2024-10-14 17:05:47,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 1014 transitions, 14175 flow, removed 17 selfloop flow, removed 3 redundant places. [2024-10-14 17:05:47,394 INFO L231 Difference]: Finished difference. Result has 374 places, 891 transitions, 12009 flow [2024-10-14 17:05:47,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=11195, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=876, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=706, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12009, PETRI_PLACES=374, PETRI_TRANSITIONS=891} [2024-10-14 17:05:47,396 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 125 predicate places. [2024-10-14 17:05:47,396 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 891 transitions, 12009 flow [2024-10-14 17:05:47,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 174.69230769230768) internal successors, (2271), 13 states have internal predecessors, (2271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:47,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:47,399 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:47,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 17:05:47,399 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:47,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:47,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1918056182, now seen corresponding path program 5 times [2024-10-14 17:05:47,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:47,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348133416] [2024-10-14 17:05:47,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:47,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:48,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:48,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:48,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348133416] [2024-10-14 17:05:48,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348133416] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:48,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:48,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:48,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034591143] [2024-10-14 17:05:48,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:48,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:48,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:48,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:48,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:49,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 246 [2024-10-14 17:05:49,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 891 transitions, 12009 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:49,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:49,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 246 [2024-10-14 17:05:49,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:52,977 INFO L124 PetriNetUnfolderBase]: 3938/13398 cut-off events. [2024-10-14 17:05:52,977 INFO L125 PetriNetUnfolderBase]: For 80803/81447 co-relation queries the response was YES. [2024-10-14 17:05:53,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56373 conditions, 13398 events. 3938/13398 cut-off events. For 80803/81447 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 144743 event pairs, 353 based on Foata normal form. 142/13342 useless extension candidates. Maximal degree in co-relation 56227. Up to 2936 conditions per place. [2024-10-14 17:05:53,120 INFO L140 encePairwiseOnDemand]: 210/246 looper letters, 521 selfloop transitions, 449 changer transitions 3/1178 dead transitions. [2024-10-14 17:05:53,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 1178 transitions, 18004 flow [2024-10-14 17:05:53,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 17:05:53,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-14 17:05:53,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2772 transitions. [2024-10-14 17:05:53,126 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.751219512195122 [2024-10-14 17:05:53,126 INFO L175 Difference]: Start difference. First operand has 374 places, 891 transitions, 12009 flow. Second operand 15 states and 2772 transitions. [2024-10-14 17:05:53,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 1178 transitions, 18004 flow [2024-10-14 17:05:53,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 1178 transitions, 17809 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-14 17:05:53,672 INFO L231 Difference]: Finished difference. Result has 390 places, 1028 transitions, 16641 flow [2024-10-14 17:05:53,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=11899, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=891, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16641, PETRI_PLACES=390, PETRI_TRANSITIONS=1028} [2024-10-14 17:05:53,673 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 141 predicate places. [2024-10-14 17:05:53,673 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 1028 transitions, 16641 flow [2024-10-14 17:05:53,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:53,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:53,675 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:53,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 17:05:53,675 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:53,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:53,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1123631942, now seen corresponding path program 6 times [2024-10-14 17:05:53,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:53,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487077681] [2024-10-14 17:05:53,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:53,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:53,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:05:54,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:05:54,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:05:54,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487077681] [2024-10-14 17:05:54,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487077681] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:05:54,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:05:54,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:05:54,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885093430] [2024-10-14 17:05:54,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:05:54,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:05:54,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:05:54,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:05:54,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:05:55,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 246 [2024-10-14 17:05:55,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 1028 transitions, 16641 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:55,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:05:55,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 246 [2024-10-14 17:05:55,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:05:59,039 INFO L124 PetriNetUnfolderBase]: 4275/14507 cut-off events. [2024-10-14 17:05:59,040 INFO L125 PetriNetUnfolderBase]: For 112852/113521 co-relation queries the response was YES. [2024-10-14 17:05:59,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63968 conditions, 14507 events. 4275/14507 cut-off events. For 112852/113521 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 159656 event pairs, 387 based on Foata normal form. 184/14484 useless extension candidates. Maximal degree in co-relation 63812. Up to 2833 conditions per place. [2024-10-14 17:05:59,226 INFO L140 encePairwiseOnDemand]: 213/246 looper letters, 520 selfloop transitions, 501 changer transitions 1/1227 dead transitions. [2024-10-14 17:05:59,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 1227 transitions, 21855 flow [2024-10-14 17:05:59,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 17:05:59,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-14 17:05:59,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3247 transitions. [2024-10-14 17:05:59,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7332881662149955 [2024-10-14 17:05:59,233 INFO L175 Difference]: Start difference. First operand has 390 places, 1028 transitions, 16641 flow. Second operand 18 states and 3247 transitions. [2024-10-14 17:05:59,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 1227 transitions, 21855 flow [2024-10-14 17:05:59,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 1227 transitions, 21768 flow, removed 41 selfloop flow, removed 3 redundant places. [2024-10-14 17:05:59,799 INFO L231 Difference]: Finished difference. Result has 412 places, 1100 transitions, 20355 flow [2024-10-14 17:05:59,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=16576, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1028, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=429, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=20355, PETRI_PLACES=412, PETRI_TRANSITIONS=1100} [2024-10-14 17:05:59,800 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 163 predicate places. [2024-10-14 17:05:59,800 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 1100 transitions, 20355 flow [2024-10-14 17:05:59,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:05:59,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:05:59,802 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:05:59,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 17:05:59,802 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:05:59,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:05:59,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1860405620, now seen corresponding path program 7 times [2024-10-14 17:05:59,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:05:59,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807967614] [2024-10-14 17:05:59,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:05:59,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:05:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:00,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:00,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:00,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807967614] [2024-10-14 17:06:00,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807967614] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:00,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:00,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:06:00,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469002633] [2024-10-14 17:06:00,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:00,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:06:00,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:00,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:06:00,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:06:01,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 246 [2024-10-14 17:06:01,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 1100 transitions, 20355 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:01,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:01,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 246 [2024-10-14 17:06:01,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:06:07,278 INFO L124 PetriNetUnfolderBase]: 5581/18770 cut-off events. [2024-10-14 17:06:07,278 INFO L125 PetriNetUnfolderBase]: For 168410/169556 co-relation queries the response was YES. [2024-10-14 17:06:07,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84521 conditions, 18770 events. 5581/18770 cut-off events. For 168410/169556 co-relation queries the response was YES. Maximal size of possible extension queue 686. Compared 219168 event pairs, 456 based on Foata normal form. 309/18813 useless extension candidates. Maximal degree in co-relation 84356. Up to 3902 conditions per place. [2024-10-14 17:06:07,484 INFO L140 encePairwiseOnDemand]: 209/246 looper letters, 575 selfloop transitions, 605 changer transitions 4/1389 dead transitions. [2024-10-14 17:06:07,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 1389 transitions, 27771 flow [2024-10-14 17:06:07,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 17:06:07,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-14 17:06:07,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3648 transitions. [2024-10-14 17:06:07,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7414634146341463 [2024-10-14 17:06:07,491 INFO L175 Difference]: Start difference. First operand has 412 places, 1100 transitions, 20355 flow. Second operand 20 states and 3648 transitions. [2024-10-14 17:06:07,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 1389 transitions, 27771 flow [2024-10-14 17:06:08,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 1389 transitions, 27696 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-10-14 17:06:08,308 INFO L231 Difference]: Finished difference. Result has 433 places, 1226 transitions, 26207 flow [2024-10-14 17:06:08,309 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=20286, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=479, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=503, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=26207, PETRI_PLACES=433, PETRI_TRANSITIONS=1226} [2024-10-14 17:06:08,309 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 184 predicate places. [2024-10-14 17:06:08,310 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 1226 transitions, 26207 flow [2024-10-14 17:06:08,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:08,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:08,311 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:06:08,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 17:06:08,311 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:06:08,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:08,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1647387956, now seen corresponding path program 8 times [2024-10-14 17:06:08,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:08,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715072094] [2024-10-14 17:06:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:08,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:09,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:09,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715072094] [2024-10-14 17:06:09,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715072094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:09,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:09,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:06:09,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349798824] [2024-10-14 17:06:09,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:09,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:06:09,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:09,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:06:09,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:06:10,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 246 [2024-10-14 17:06:10,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1226 transitions, 26207 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:10,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:10,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 246 [2024-10-14 17:06:10,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:06:17,534 INFO L124 PetriNetUnfolderBase]: 5953/20108 cut-off events. [2024-10-14 17:06:17,534 INFO L125 PetriNetUnfolderBase]: For 226550/227865 co-relation queries the response was YES. [2024-10-14 17:06:17,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94830 conditions, 20108 events. 5953/20108 cut-off events. For 226550/227865 co-relation queries the response was YES. Maximal size of possible extension queue 736. Compared 238376 event pairs, 412 based on Foata normal form. 469/20324 useless extension candidates. Maximal degree in co-relation 94654. Up to 3957 conditions per place. [2024-10-14 17:06:17,861 INFO L140 encePairwiseOnDemand]: 213/246 looper letters, 674 selfloop transitions, 610 changer transitions 1/1490 dead transitions. [2024-10-14 17:06:17,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1490 transitions, 33553 flow [2024-10-14 17:06:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 17:06:17,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-14 17:06:17,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3429 transitions. [2024-10-14 17:06:17,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.733632862644416 [2024-10-14 17:06:17,864 INFO L175 Difference]: Start difference. First operand has 433 places, 1226 transitions, 26207 flow. Second operand 19 states and 3429 transitions. [2024-10-14 17:06:17,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1490 transitions, 33553 flow [2024-10-14 17:06:19,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1490 transitions, 33461 flow, removed 30 selfloop flow, removed 7 redundant places. [2024-10-14 17:06:19,024 INFO L231 Difference]: Finished difference. Result has 451 places, 1317 transitions, 30735 flow [2024-10-14 17:06:19,025 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=246, PETRI_DIFFERENCE_MINUEND_FLOW=26119, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=521, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=622, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=30735, PETRI_PLACES=451, PETRI_TRANSITIONS=1317} [2024-10-14 17:06:19,025 INFO L277 CegarLoopForPetriNet]: 249 programPoint places, 202 predicate places. [2024-10-14 17:06:19,025 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 1317 transitions, 30735 flow [2024-10-14 17:06:19,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:19,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:06:19,027 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:06:19,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 17:06:19,027 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-14 17:06:19,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:06:19,027 INFO L85 PathProgramCache]: Analyzing trace with hash -124636592, now seen corresponding path program 9 times [2024-10-14 17:06:19,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:06:19,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134328317] [2024-10-14 17:06:19,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:06:19,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:06:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:06:20,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:06:20,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:06:20,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134328317] [2024-10-14 17:06:20,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134328317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:06:20,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:06:20,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 17:06:20,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231965814] [2024-10-14 17:06:20,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:06:20,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:06:20,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:06:20,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:06:20,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:06:21,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 246 [2024-10-14 17:06:21,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1317 transitions, 30735 flow. Second operand has 13 states, 13 states have (on average 172.69230769230768) internal successors, (2245), 13 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:06:21,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:06:21,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 246 [2024-10-14 17:06:21,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand