./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eddb66a74cd149f880832378d52d5c02c94fd6efcf2d83aeade11bcdaaabe426 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:32:42,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:32:42,127 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:32:42,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:32:42,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:32:42,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:32:42,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:32:42,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:32:42,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:32:42,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:32:42,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:32:42,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:32:42,163 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:32:42,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:32:42,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:32:42,164 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:32:42,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:32:42,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:32:42,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:32:42,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:32:42,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:32:42,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:32:42,166 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:32:42,166 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:32:42,167 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:32:42,167 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:32:42,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:32:42,167 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:32:42,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:32:42,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:32:42,168 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:32:42,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:32:42,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:32:42,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:32:42,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:32:42,170 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:32:42,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:32:42,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:32:42,170 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:32:42,170 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:32:42,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:32:42,171 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eddb66a74cd149f880832378d52d5c02c94fd6efcf2d83aeade11bcdaaabe426 [2024-11-12 12:32:42,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:32:42,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:32:42,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:32:42,434 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:32:42,434 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:32:42,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i [2024-11-12 12:32:43,743 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:32:43,961 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:32:43,962 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i [2024-11-12 12:32:43,977 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de727d28/1e482bb0f1a54d9bbb9c2ac2d08dbcc0/FLAG933361b39 [2024-11-12 12:32:43,994 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de727d28/1e482bb0f1a54d9bbb9c2ac2d08dbcc0 [2024-11-12 12:32:43,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:32:43,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:32:43,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:32:43,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:32:44,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:32:44,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:32:43" (1/1) ... [2024-11-12 12:32:44,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70102638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44, skipping insertion in model container [2024-11-12 12:32:44,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:32:43" (1/1) ... [2024-11-12 12:32:44,040 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:32:44,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:32:44,370 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:32:44,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:32:44,443 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:32:44,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44 WrapperNode [2024-11-12 12:32:44,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:32:44,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:32:44,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:32:44,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:32:44,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44" (1/1) ... [2024-11-12 12:32:44,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44" (1/1) ... [2024-11-12 12:32:44,492 INFO L138 Inliner]: procedures = 171, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2024-11-12 12:32:44,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:32:44,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:32:44,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:32:44,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:32:44,502 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44" (1/1) ... [2024-11-12 12:32:44,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44" (1/1) ... [2024-11-12 12:32:44,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44" (1/1) ... [2024-11-12 12:32:44,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44" (1/1) ... [2024-11-12 12:32:44,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44" (1/1) ... [2024-11-12 12:32:44,518 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44" (1/1) ... [2024-11-12 12:32:44,519 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44" (1/1) ... [2024-11-12 12:32:44,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44" (1/1) ... [2024-11-12 12:32:44,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:32:44,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:32:44,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:32:44,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:32:44,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44" (1/1) ... [2024-11-12 12:32:44,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:32:44,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:32:44,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 12:32:44,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 12:32:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:32:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:32:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:32:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:32:44,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 12:32:44,590 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 12:32:44,590 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 12:32:44,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:32:44,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:32:44,590 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:32:44,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:32:44,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:32:44,591 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:32:44,734 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:32:44,739 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:32:44,953 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:32:44,953 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:32:44,978 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:32:44,978 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-12 12:32:44,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:32:44 BoogieIcfgContainer [2024-11-12 12:32:44,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:32:44,980 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:32:44,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:32:44,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:32:44,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:32:43" (1/3) ... [2024-11-12 12:32:44,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731a2e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:32:44, skipping insertion in model container [2024-11-12 12:32:44,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:44" (2/3) ... [2024-11-12 12:32:44,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731a2e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:32:44, skipping insertion in model container [2024-11-12 12:32:44,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:32:44" (3/3) ... [2024-11-12 12:32:44,992 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_01-simple_racing.i [2024-11-12 12:32:45,005 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:32:45,006 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-12 12:32:45,006 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:32:45,045 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 12:32:45,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 147 transitions, 301 flow [2024-11-12 12:32:45,151 INFO L124 PetriNetUnfolderBase]: 19/206 cut-off events. [2024-11-12 12:32:45,152 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:32:45,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 206 events. 19/206 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 628 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 109. Up to 4 conditions per place. [2024-11-12 12:32:45,159 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 147 transitions, 301 flow [2024-11-12 12:32:45,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 147 transitions, 301 flow [2024-11-12 12:32:45,177 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:32:45,183 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;@336165d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:32:45,184 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-12 12:32:45,193 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:32:45,193 INFO L124 PetriNetUnfolderBase]: 2/53 cut-off events. [2024-11-12 12:32:45,193 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:32:45,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:45,194 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:45,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:32:45,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:45,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1629330204, now seen corresponding path program 1 times [2024-11-12 12:32:45,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:45,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730473867] [2024-11-12 12:32:45,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:45,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:45,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:32:45,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:45,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730473867] [2024-11-12 12:32:45,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730473867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:45,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:45,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:32:45,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095564187] [2024-11-12 12:32:45,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:45,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:32:45,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:45,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:32:45,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:32:45,584 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 147 [2024-11-12 12:32:45,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 147 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:45,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:45,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 147 [2024-11-12 12:32:45,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:45,730 INFO L124 PetriNetUnfolderBase]: 48/531 cut-off events. [2024-11-12 12:32:45,730 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 12:32:45,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 531 events. 48/531 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2501 event pairs, 35 based on Foata normal form. 62/538 useless extension candidates. Maximal degree in co-relation 575. Up to 108 conditions per place. [2024-11-12 12:32:45,734 INFO L140 encePairwiseOnDemand]: 132/147 looper letters, 22 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-11-12 12:32:45,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 139 transitions, 333 flow [2024-11-12 12:32:45,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:32:45,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:32:45,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2024-11-12 12:32:45,764 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-12 12:32:45,766 INFO L175 Difference]: Start difference. First operand has 137 places, 147 transitions, 301 flow. Second operand 3 states and 392 transitions. [2024-11-12 12:32:45,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 139 transitions, 333 flow [2024-11-12 12:32:45,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 139 transitions, 333 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:32:45,773 INFO L231 Difference]: Finished difference. Result has 138 places, 133 transitions, 281 flow [2024-11-12 12:32:45,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=281, PETRI_PLACES=138, PETRI_TRANSITIONS=133} [2024-11-12 12:32:45,779 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 1 predicate places. [2024-11-12 12:32:45,779 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 133 transitions, 281 flow [2024-11-12 12:32:45,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:45,780 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:45,780 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:45,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:32:45,781 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:32:45,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:45,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1109750366, now seen corresponding path program 1 times [2024-11-12 12:32:45,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:45,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718390401] [2024-11-12 12:32:45,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:45,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:46,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:32:46,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:46,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718390401] [2024-11-12 12:32:46,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718390401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:46,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:46,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:32:46,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177542439] [2024-11-12 12:32:46,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:46,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:32:46,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:46,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:32:46,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:32:46,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 147 [2024-11-12 12:32:46,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 133 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:46,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:46,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 147 [2024-11-12 12:32:46,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:46,507 INFO L124 PetriNetUnfolderBase]: 108/637 cut-off events. [2024-11-12 12:32:46,507 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-12 12:32:46,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 924 conditions, 637 events. 108/637 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3633 event pairs, 7 based on Foata normal form. 0/589 useless extension candidates. Maximal degree in co-relation 831. Up to 181 conditions per place. [2024-11-12 12:32:46,513 INFO L140 encePairwiseOnDemand]: 141/147 looper letters, 48 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2024-11-12 12:32:46,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 156 transitions, 433 flow [2024-11-12 12:32:46,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:32:46,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:32:46,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 678 transitions. [2024-11-12 12:32:46,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7687074829931972 [2024-11-12 12:32:46,517 INFO L175 Difference]: Start difference. First operand has 138 places, 133 transitions, 281 flow. Second operand 6 states and 678 transitions. [2024-11-12 12:32:46,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 156 transitions, 433 flow [2024-11-12 12:32:46,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 156 transitions, 429 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:32:46,520 INFO L231 Difference]: Finished difference. Result has 140 places, 132 transitions, 285 flow [2024-11-12 12:32:46,520 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=140, PETRI_TRANSITIONS=132} [2024-11-12 12:32:46,521 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 3 predicate places. [2024-11-12 12:32:46,521 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 132 transitions, 285 flow [2024-11-12 12:32:46,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:46,523 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:46,523 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:46,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:32:46,523 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:32:46,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:46,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1567470371, now seen corresponding path program 1 times [2024-11-12 12:32:46,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:46,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815003467] [2024-11-12 12:32:46,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:46,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:46,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:32:46,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:46,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815003467] [2024-11-12 12:32:46,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815003467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:46,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:46,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:32:46,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116515400] [2024-11-12 12:32:46,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:46,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:32:46,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:46,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:32:46,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:32:46,604 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 147 [2024-11-12 12:32:46,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 132 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:46,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:46,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 147 [2024-11-12 12:32:46,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:46,706 INFO L124 PetriNetUnfolderBase]: 91/795 cut-off events. [2024-11-12 12:32:46,707 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-12 12:32:46,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1031 conditions, 795 events. 91/795 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4698 event pairs, 30 based on Foata normal form. 0/726 useless extension candidates. Maximal degree in co-relation 962. Up to 125 conditions per place. [2024-11-12 12:32:46,710 INFO L140 encePairwiseOnDemand]: 138/147 looper letters, 30 selfloop transitions, 6 changer transitions 0/145 dead transitions. [2024-11-12 12:32:46,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 145 transitions, 386 flow [2024-11-12 12:32:46,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:32:46,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:32:46,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2024-11-12 12:32:46,712 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8435374149659864 [2024-11-12 12:32:46,712 INFO L175 Difference]: Start difference. First operand has 140 places, 132 transitions, 285 flow. Second operand 3 states and 372 transitions. [2024-11-12 12:32:46,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 145 transitions, 386 flow [2024-11-12 12:32:46,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 145 transitions, 376 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:32:46,715 INFO L231 Difference]: Finished difference. Result has 137 places, 134 transitions, 313 flow [2024-11-12 12:32:46,715 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=137, PETRI_TRANSITIONS=134} [2024-11-12 12:32:46,716 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 0 predicate places. [2024-11-12 12:32:46,716 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 134 transitions, 313 flow [2024-11-12 12:32:46,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:46,716 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:46,717 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:46,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:32:46,717 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:32:46,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:46,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1800401091, now seen corresponding path program 1 times [2024-11-12 12:32:46,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:46,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691845699] [2024-11-12 12:32:46,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:46,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:46,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:32:46,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:46,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691845699] [2024-11-12 12:32:46,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691845699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:46,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:46,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:32:46,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066454727] [2024-11-12 12:32:46,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:46,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:32:46,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:46,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:32:46,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:32:46,779 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 147 [2024-11-12 12:32:46,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 134 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:46,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:46,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 147 [2024-11-12 12:32:46,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:46,868 INFO L124 PetriNetUnfolderBase]: 94/797 cut-off events. [2024-11-12 12:32:46,868 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-12 12:32:46,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 797 events. 94/797 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4756 event pairs, 60 based on Foata normal form. 0/728 useless extension candidates. Maximal degree in co-relation 1062. Up to 189 conditions per place. [2024-11-12 12:32:46,882 INFO L140 encePairwiseOnDemand]: 142/147 looper letters, 27 selfloop transitions, 4 changer transitions 0/141 dead transitions. [2024-11-12 12:32:46,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 141 transitions, 393 flow [2024-11-12 12:32:46,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:32:46,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:32:46,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2024-11-12 12:32:46,883 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8344671201814059 [2024-11-12 12:32:46,883 INFO L175 Difference]: Start difference. First operand has 137 places, 134 transitions, 313 flow. Second operand 3 states and 368 transitions. [2024-11-12 12:32:46,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 141 transitions, 393 flow [2024-11-12 12:32:46,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 141 transitions, 379 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:32:46,889 INFO L231 Difference]: Finished difference. Result has 139 places, 137 transitions, 333 flow [2024-11-12 12:32:46,890 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=139, PETRI_TRANSITIONS=137} [2024-11-12 12:32:46,891 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 2 predicate places. [2024-11-12 12:32:46,891 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 137 transitions, 333 flow [2024-11-12 12:32:46,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:46,892 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:46,893 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:46,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:32:46,893 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:32:46,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:46,894 INFO L85 PathProgramCache]: Analyzing trace with hash 660933758, now seen corresponding path program 1 times [2024-11-12 12:32:46,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:46,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148468899] [2024-11-12 12:32:46,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:46,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:32:46,920 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:32:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:32:46,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:32:46,959 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:32:46,959 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-12 12:32:46,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-12 12:32:46,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-12 12:32:46,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-12 12:32:46,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-12 12:32:46,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-12 12:32:46,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-12 12:32:46,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-12 12:32:46,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-12 12:32:46,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-12 12:32:46,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-12 12:32:46,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-12 12:32:46,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:32:46,966 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-12 12:32:46,969 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:32:46,969 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 12:32:46,996 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 12:32:47,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 196 transitions, 408 flow [2024-11-12 12:32:47,029 INFO L124 PetriNetUnfolderBase]: 34/342 cut-off events. [2024-11-12 12:32:47,029 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 12:32:47,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 342 events. 34/342 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1167 event pairs, 0 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 208. Up to 8 conditions per place. [2024-11-12 12:32:47,033 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 196 transitions, 408 flow [2024-11-12 12:32:47,035 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 181 places, 196 transitions, 408 flow [2024-11-12 12:32:47,036 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:32:47,037 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;@336165d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:32:47,037 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-12 12:32:47,041 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:32:47,041 INFO L124 PetriNetUnfolderBase]: 2/53 cut-off events. [2024-11-12 12:32:47,041 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:32:47,042 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:47,042 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:47,042 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:32:47,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:47,042 INFO L85 PathProgramCache]: Analyzing trace with hash 149931292, now seen corresponding path program 1 times [2024-11-12 12:32:47,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:47,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507954122] [2024-11-12 12:32:47,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:47,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:47,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:32:47,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:47,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507954122] [2024-11-12 12:32:47,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507954122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:47,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:47,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:32:47,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508829149] [2024-11-12 12:32:47,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:47,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:32:47,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:47,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:32:47,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:32:47,091 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 196 [2024-11-12 12:32:47,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 196 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:47,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:47,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 196 [2024-11-12 12:32:47,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:47,612 INFO L124 PetriNetUnfolderBase]: 788/4305 cut-off events. [2024-11-12 12:32:47,612 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-12 12:32:47,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5658 conditions, 4305 events. 788/4305 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 41159 event pairs, 348 based on Foata normal form. 749/4668 useless extension candidates. Maximal degree in co-relation 721. Up to 1303 conditions per place. [2024-11-12 12:32:47,637 INFO L140 encePairwiseOnDemand]: 175/196 looper letters, 31 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2024-11-12 12:32:47,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 183 transitions, 448 flow [2024-11-12 12:32:47,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:32:47,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:32:47,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2024-11-12 12:32:47,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8707482993197279 [2024-11-12 12:32:47,639 INFO L175 Difference]: Start difference. First operand has 181 places, 196 transitions, 408 flow. Second operand 3 states and 512 transitions. [2024-11-12 12:32:47,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 183 transitions, 448 flow [2024-11-12 12:32:47,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 183 transitions, 448 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:32:47,643 INFO L231 Difference]: Finished difference. Result has 182 places, 177 transitions, 380 flow [2024-11-12 12:32:47,643 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=380, PETRI_PLACES=182, PETRI_TRANSITIONS=177} [2024-11-12 12:32:47,644 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 1 predicate places. [2024-11-12 12:32:47,644 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 177 transitions, 380 flow [2024-11-12 12:32:47,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:47,644 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:47,645 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:47,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:32:47,645 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:32:47,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:47,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1177923550, now seen corresponding path program 1 times [2024-11-12 12:32:47,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:47,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644198270] [2024-11-12 12:32:47,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:47,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:47,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:32:47,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:47,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644198270] [2024-11-12 12:32:47,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644198270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:47,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:47,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:32:47,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859636446] [2024-11-12 12:32:47,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:47,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:32:47,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:47,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:32:47,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:32:47,992 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 196 [2024-11-12 12:32:47,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 177 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:47,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:47,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 196 [2024-11-12 12:32:47,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:48,605 INFO L124 PetriNetUnfolderBase]: 1718/5680 cut-off events. [2024-11-12 12:32:48,606 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2024-11-12 12:32:48,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8692 conditions, 5680 events. 1718/5680 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 54009 event pairs, 222 based on Foata normal form. 0/5288 useless extension candidates. Maximal degree in co-relation 1233. Up to 2015 conditions per place. [2024-11-12 12:32:48,634 INFO L140 encePairwiseOnDemand]: 190/196 looper letters, 80 selfloop transitions, 6 changer transitions 0/224 dead transitions. [2024-11-12 12:32:48,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 224 transitions, 646 flow [2024-11-12 12:32:48,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:32:48,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:32:48,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 920 transitions. [2024-11-12 12:32:48,637 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.782312925170068 [2024-11-12 12:32:48,637 INFO L175 Difference]: Start difference. First operand has 182 places, 177 transitions, 380 flow. Second operand 6 states and 920 transitions. [2024-11-12 12:32:48,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 224 transitions, 646 flow [2024-11-12 12:32:48,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 224 transitions, 644 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:32:48,642 INFO L231 Difference]: Finished difference. Result has 185 places, 176 transitions, 388 flow [2024-11-12 12:32:48,642 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=388, PETRI_PLACES=185, PETRI_TRANSITIONS=176} [2024-11-12 12:32:48,642 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 4 predicate places. [2024-11-12 12:32:48,643 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 176 transitions, 388 flow [2024-11-12 12:32:48,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.5) internal successors, (843), 6 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:48,644 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:48,644 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:48,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:32:48,644 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:32:48,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:48,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1892525488, now seen corresponding path program 1 times [2024-11-12 12:32:48,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:48,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184305255] [2024-11-12 12:32:48,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:48,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:48,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:32:48,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:48,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184305255] [2024-11-12 12:32:48,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184305255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:48,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:48,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:32:48,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413273290] [2024-11-12 12:32:48,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:48,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:32:48,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:48,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:32:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:32:48,699 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 196 [2024-11-12 12:32:48,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 176 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:48,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:48,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 196 [2024-11-12 12:32:48,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:50,121 INFO L124 PetriNetUnfolderBase]: 3893/14603 cut-off events. [2024-11-12 12:32:50,122 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-11-12 12:32:50,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21154 conditions, 14603 events. 3893/14603 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 164191 event pairs, 1530 based on Foata normal form. 0/13062 useless extension candidates. Maximal degree in co-relation 20044. Up to 3516 conditions per place. [2024-11-12 12:32:50,205 INFO L140 encePairwiseOnDemand]: 177/196 looper letters, 58 selfloop transitions, 14 changer transitions 0/209 dead transitions. [2024-11-12 12:32:50,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 209 transitions, 609 flow [2024-11-12 12:32:50,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:32:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:32:50,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2024-11-12 12:32:50,208 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8350340136054422 [2024-11-12 12:32:50,208 INFO L175 Difference]: Start difference. First operand has 185 places, 176 transitions, 388 flow. Second operand 3 states and 491 transitions. [2024-11-12 12:32:50,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 209 transitions, 609 flow [2024-11-12 12:32:50,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 209 transitions, 597 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:32:50,213 INFO L231 Difference]: Finished difference. Result has 184 places, 190 transitions, 498 flow [2024-11-12 12:32:50,214 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=184, PETRI_TRANSITIONS=190} [2024-11-12 12:32:50,215 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 3 predicate places. [2024-11-12 12:32:50,215 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 190 transitions, 498 flow [2024-11-12 12:32:50,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:50,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:50,216 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:50,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:32:50,216 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:32:50,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:50,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1628660468, now seen corresponding path program 1 times [2024-11-12 12:32:50,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:50,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922380762] [2024-11-12 12:32:50,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:50,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:50,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:32:50,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:50,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922380762] [2024-11-12 12:32:50,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922380762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:50,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:50,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:32:50,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952425307] [2024-11-12 12:32:50,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:50,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:32:50,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:50,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:32:50,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:32:50,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 196 [2024-11-12 12:32:50,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 190 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:50,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:50,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 196 [2024-11-12 12:32:50,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:51,996 INFO L124 PetriNetUnfolderBase]: 4020/16456 cut-off events. [2024-11-12 12:32:51,996 INFO L125 PetriNetUnfolderBase]: For 4426/4601 co-relation queries the response was YES. [2024-11-12 12:32:52,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27144 conditions, 16456 events. 4020/16456 cut-off events. For 4426/4601 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 193973 event pairs, 2411 based on Foata normal form. 46/14958 useless extension candidates. Maximal degree in co-relation 13739. Up to 5498 conditions per place. [2024-11-12 12:32:52,077 INFO L140 encePairwiseOnDemand]: 187/196 looper letters, 52 selfloop transitions, 14 changer transitions 0/214 dead transitions. [2024-11-12 12:32:52,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 214 transitions, 716 flow [2024-11-12 12:32:52,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:32:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:32:52,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2024-11-12 12:32:52,079 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8248299319727891 [2024-11-12 12:32:52,079 INFO L175 Difference]: Start difference. First operand has 184 places, 190 transitions, 498 flow. Second operand 3 states and 485 transitions. [2024-11-12 12:32:52,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 214 transitions, 716 flow [2024-11-12 12:32:52,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 214 transitions, 678 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:32:52,091 INFO L231 Difference]: Finished difference. Result has 186 places, 202 transitions, 596 flow [2024-11-12 12:32:52,091 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=186, PETRI_TRANSITIONS=202} [2024-11-12 12:32:52,091 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 5 predicate places. [2024-11-12 12:32:52,092 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 202 transitions, 596 flow [2024-11-12 12:32:52,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:52,092 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:52,097 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:52,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:32:52,098 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:32:52,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:52,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1927464448, now seen corresponding path program 1 times [2024-11-12 12:32:52,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:52,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623421251] [2024-11-12 12:32:52,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:52,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:52,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 12:32:52,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:52,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623421251] [2024-11-12 12:32:52,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623421251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:52,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:52,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:32:52,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492639817] [2024-11-12 12:32:52,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:52,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:32:52,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:52,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:32:52,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:32:52,233 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 196 [2024-11-12 12:32:52,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 202 transitions, 596 flow. Second operand has 5 states, 5 states have (on average 151.4) internal successors, (757), 5 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:52,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:52,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 196 [2024-11-12 12:32:52,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:53,927 INFO L124 PetriNetUnfolderBase]: 3061/17776 cut-off events. [2024-11-12 12:32:53,928 INFO L125 PetriNetUnfolderBase]: For 1408/1922 co-relation queries the response was YES. [2024-11-12 12:32:53,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25236 conditions, 17776 events. 3061/17776 cut-off events. For 1408/1922 co-relation queries the response was YES. Maximal size of possible extension queue 508. Compared 232087 event pairs, 737 based on Foata normal form. 16/15951 useless extension candidates. Maximal degree in co-relation 21468. Up to 3818 conditions per place. [2024-11-12 12:32:54,027 INFO L140 encePairwiseOnDemand]: 191/196 looper letters, 56 selfloop transitions, 5 changer transitions 0/234 dead transitions. [2024-11-12 12:32:54,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 234 transitions, 782 flow [2024-11-12 12:32:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:32:54,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:32:54,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 956 transitions. [2024-11-12 12:32:54,030 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8129251700680272 [2024-11-12 12:32:54,030 INFO L175 Difference]: Start difference. First operand has 186 places, 202 transitions, 596 flow. Second operand 6 states and 956 transitions. [2024-11-12 12:32:54,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 234 transitions, 782 flow [2024-11-12 12:32:54,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 234 transitions, 754 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:32:54,038 INFO L231 Difference]: Finished difference. Result has 192 places, 204 transitions, 594 flow [2024-11-12 12:32:54,038 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=594, PETRI_PLACES=192, PETRI_TRANSITIONS=204} [2024-11-12 12:32:54,039 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 11 predicate places. [2024-11-12 12:32:54,039 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 204 transitions, 594 flow [2024-11-12 12:32:54,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 151.4) internal successors, (757), 5 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:54,040 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:54,040 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:54,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 12:32:54,041 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:32:54,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:54,044 INFO L85 PathProgramCache]: Analyzing trace with hash 573959911, now seen corresponding path program 1 times [2024-11-12 12:32:54,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:54,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640622953] [2024-11-12 12:32:54,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:54,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-12 12:32:54,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:54,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640622953] [2024-11-12 12:32:54,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640622953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:54,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:54,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:32:54,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360501880] [2024-11-12 12:32:54,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:54,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:32:54,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:54,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:32:54,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:32:54,120 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 196 [2024-11-12 12:32:54,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 204 transitions, 594 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:54,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:54,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 196 [2024-11-12 12:32:54,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:55,907 INFO L124 PetriNetUnfolderBase]: 4656/19920 cut-off events. [2024-11-12 12:32:55,907 INFO L125 PetriNetUnfolderBase]: For 5112/5314 co-relation queries the response was YES. [2024-11-12 12:32:55,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32445 conditions, 19920 events. 4656/19920 cut-off events. For 5112/5314 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 247909 event pairs, 2716 based on Foata normal form. 35/17903 useless extension candidates. Maximal degree in co-relation 32254. Up to 6266 conditions per place. [2024-11-12 12:32:56,024 INFO L140 encePairwiseOnDemand]: 187/196 looper letters, 59 selfloop transitions, 17 changer transitions 0/228 dead transitions. [2024-11-12 12:32:56,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 228 transitions, 829 flow [2024-11-12 12:32:56,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:32:56,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:32:56,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 484 transitions. [2024-11-12 12:32:56,027 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8231292517006803 [2024-11-12 12:32:56,028 INFO L175 Difference]: Start difference. First operand has 192 places, 204 transitions, 594 flow. Second operand 3 states and 484 transitions. [2024-11-12 12:32:56,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 228 transitions, 829 flow [2024-11-12 12:32:56,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 228 transitions, 823 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-12 12:32:56,034 INFO L231 Difference]: Finished difference. Result has 194 places, 217 transitions, 742 flow [2024-11-12 12:32:56,034 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=194, PETRI_TRANSITIONS=217} [2024-11-12 12:32:56,035 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 13 predicate places. [2024-11-12 12:32:56,035 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 217 transitions, 742 flow [2024-11-12 12:32:56,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:56,036 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:56,036 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:56,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 12:32:56,036 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:32:56,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:56,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1794930462, now seen corresponding path program 1 times [2024-11-12 12:32:56,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:56,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202420183] [2024-11-12 12:32:56,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:56,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:56,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-12 12:32:56,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:56,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202420183] [2024-11-12 12:32:56,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202420183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:56,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:56,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:32:56,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487846054] [2024-11-12 12:32:56,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:56,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:32:56,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:56,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:32:56,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:32:56,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 196 [2024-11-12 12:32:56,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 217 transitions, 742 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:56,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:56,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 196 [2024-11-12 12:32:56,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:58,256 INFO L124 PetriNetUnfolderBase]: 5232/22430 cut-off events. [2024-11-12 12:32:58,256 INFO L125 PetriNetUnfolderBase]: For 12920/13344 co-relation queries the response was YES. [2024-11-12 12:32:58,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39638 conditions, 22430 events. 5232/22430 cut-off events. For 12920/13344 co-relation queries the response was YES. Maximal size of possible extension queue 621. Compared 284407 event pairs, 2910 based on Foata normal form. 60/20201 useless extension candidates. Maximal degree in co-relation 39426. Up to 7048 conditions per place. [2024-11-12 12:32:58,388 INFO L140 encePairwiseOnDemand]: 187/196 looper letters, 71 selfloop transitions, 17 changer transitions 0/242 dead transitions. [2024-11-12 12:32:58,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 242 transitions, 1036 flow [2024-11-12 12:32:58,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:32:58,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:32:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2024-11-12 12:32:58,389 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8248299319727891 [2024-11-12 12:32:58,389 INFO L175 Difference]: Start difference. First operand has 194 places, 217 transitions, 742 flow. Second operand 3 states and 485 transitions. [2024-11-12 12:32:58,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 242 transitions, 1036 flow [2024-11-12 12:32:58,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 242 transitions, 996 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:32:58,408 INFO L231 Difference]: Finished difference. Result has 196 places, 230 transitions, 884 flow [2024-11-12 12:32:58,408 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=884, PETRI_PLACES=196, PETRI_TRANSITIONS=230} [2024-11-12 12:32:58,408 INFO L279 CegarLoopForPetriNet]: 181 programPoint places, 15 predicate places. [2024-11-12 12:32:58,409 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 230 transitions, 884 flow [2024-11-12 12:32:58,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:58,409 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:58,409 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:58,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 12:32:58,410 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:32:58,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:58,410 INFO L85 PathProgramCache]: Analyzing trace with hash 508953308, now seen corresponding path program 1 times [2024-11-12 12:32:58,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:58,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421746903] [2024-11-12 12:32:58,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:58,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:32:58,431 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:32:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:32:58,451 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:32:58,452 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:32:58,452 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-12 12:32:58,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-12 12:32:58,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-12 12:32:58,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-12 12:32:58,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-12 12:32:58,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-12 12:32:58,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-12 12:32:58,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-12 12:32:58,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-12 12:32:58,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-12 12:32:58,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-12 12:32:58,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-12 12:32:58,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-12 12:32:58,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-12 12:32:58,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-12 12:32:58,455 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-12 12:32:58,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 12:32:58,455 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:58,456 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:32:58,457 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-12 12:32:58,490 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-12 12:32:58,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 245 transitions, 517 flow [2024-11-12 12:32:58,532 INFO L124 PetriNetUnfolderBase]: 54/523 cut-off events. [2024-11-12 12:32:58,532 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-12 12:32:58,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 523 events. 54/523 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1974 event pairs, 1 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 350. Up to 16 conditions per place. [2024-11-12 12:32:58,536 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 245 transitions, 517 flow [2024-11-12 12:32:58,542 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 245 transitions, 517 flow [2024-11-12 12:32:58,543 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:32:58,543 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;@336165d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:32:58,543 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-12 12:32:58,545 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:32:58,545 INFO L124 PetriNetUnfolderBase]: 2/53 cut-off events. [2024-11-12 12:32:58,545 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:32:58,545 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:58,547 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:58,548 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:32:58,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:58,549 INFO L85 PathProgramCache]: Analyzing trace with hash -625575524, now seen corresponding path program 1 times [2024-11-12 12:32:58,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:58,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874004330] [2024-11-12 12:32:58,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:58,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:58,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:32:58,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:58,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874004330] [2024-11-12 12:32:58,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874004330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:58,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:58,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:32:58,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353992662] [2024-11-12 12:32:58,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:58,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:32:58,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:58,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:32:58,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:32:58,600 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 245 [2024-11-12 12:32:58,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 245 transitions, 517 flow. Second operand has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:32:58,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:58,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 245 [2024-11-12 12:32:58,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:02,253 INFO L124 PetriNetUnfolderBase]: 8948/35254 cut-off events. [2024-11-12 12:33:02,253 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2024-11-12 12:33:02,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48492 conditions, 35254 events. 8948/35254 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 458910 event pairs, 5659 based on Foata normal form. 7668/39699 useless extension candidates. Maximal degree in co-relation 6249. Up to 12802 conditions per place. [2024-11-12 12:33:02,450 INFO L140 encePairwiseOnDemand]: 218/245 looper letters, 39 selfloop transitions, 2 changer transitions 0/226 dead transitions. [2024-11-12 12:33:02,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 226 transitions, 561 flow [2024-11-12 12:33:02,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:33:02,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:33:02,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 631 transitions. [2024-11-12 12:33:02,452 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8585034013605443 [2024-11-12 12:33:02,452 INFO L175 Difference]: Start difference. First operand has 225 places, 245 transitions, 517 flow. Second operand 3 states and 631 transitions. [2024-11-12 12:33:02,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 226 transitions, 561 flow [2024-11-12 12:33:02,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 226 transitions, 561 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:33:02,455 INFO L231 Difference]: Finished difference. Result has 226 places, 220 transitions, 477 flow [2024-11-12 12:33:02,455 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=477, PETRI_PLACES=226, PETRI_TRANSITIONS=220} [2024-11-12 12:33:02,455 INFO L279 CegarLoopForPetriNet]: 225 programPoint places, 1 predicate places. [2024-11-12 12:33:02,456 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 220 transitions, 477 flow [2024-11-12 12:33:02,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:33:02,456 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:02,456 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:33:02,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 12:33:02,456 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:33:02,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:02,456 INFO L85 PathProgramCache]: Analyzing trace with hash 884343618, now seen corresponding path program 1 times [2024-11-12 12:33:02,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:02,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922547227] [2024-11-12 12:33:02,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:02,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:02,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:02,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:02,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922547227] [2024-11-12 12:33:02,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922547227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:02,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:02,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:33:02,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264576826] [2024-11-12 12:33:02,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:02,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:33:02,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:02,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:33:02,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:33:02,718 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 245 [2024-11-12 12:33:02,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 220 transitions, 477 flow. Second operand has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:33:02,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:02,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 245 [2024-11-12 12:33:02,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:08,221 INFO L124 PetriNetUnfolderBase]: 19555/52048 cut-off events. [2024-11-12 12:33:08,221 INFO L125 PetriNetUnfolderBase]: For 1359/1359 co-relation queries the response was YES. [2024-11-12 12:33:08,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81208 conditions, 52048 events. 19555/52048 cut-off events. For 1359/1359 co-relation queries the response was YES. Maximal size of possible extension queue 1311. Compared 636389 event pairs, 2086 based on Foata normal form. 0/48476 useless extension candidates. Maximal degree in co-relation 76339. Up to 20048 conditions per place. [2024-11-12 12:33:08,557 INFO L140 encePairwiseOnDemand]: 239/245 looper letters, 112 selfloop transitions, 6 changer transitions 0/291 dead transitions. [2024-11-12 12:33:08,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 291 transitions, 855 flow [2024-11-12 12:33:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:33:08,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:33:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1162 transitions. [2024-11-12 12:33:08,563 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7904761904761904 [2024-11-12 12:33:08,563 INFO L175 Difference]: Start difference. First operand has 226 places, 220 transitions, 477 flow. Second operand 6 states and 1162 transitions. [2024-11-12 12:33:08,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 291 transitions, 855 flow [2024-11-12 12:33:08,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 291 transitions, 853 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:33:08,568 INFO L231 Difference]: Finished difference. Result has 229 places, 219 transitions, 485 flow [2024-11-12 12:33:08,568 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=245, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=485, PETRI_PLACES=229, PETRI_TRANSITIONS=219} [2024-11-12 12:33:08,568 INFO L279 CegarLoopForPetriNet]: 225 programPoint places, 4 predicate places. [2024-11-12 12:33:08,569 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 219 transitions, 485 flow [2024-11-12 12:33:08,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:33:08,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:08,569 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:33:08,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 12:33:08,570 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:33:08,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:08,570 INFO L85 PathProgramCache]: Analyzing trace with hash 533651924, now seen corresponding path program 1 times [2024-11-12 12:33:08,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:08,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582529956] [2024-11-12 12:33:08,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:08,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:08,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:08,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582529956] [2024-11-12 12:33:08,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582529956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:08,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:08,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:33:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796692079] [2024-11-12 12:33:08,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:08,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:33:08,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:08,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:33:08,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:33:08,627 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 245 [2024-11-12 12:33:08,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 219 transitions, 485 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:33:08,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:08,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 245 [2024-11-12 12:33:08,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand