./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.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 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:38:08,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:38:08,817 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:38:08,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:38:08,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:38:08,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:38:08,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:38:08,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:38:08,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:38:08,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:38:08,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:38:08,868 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:38:08,869 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:38:08,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:38:08,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:38:08,869 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:38:08,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:38:08,873 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:38:08,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:38:08,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:38:08,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:38:08,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:38:08,876 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:38:08,876 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:38:08,876 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:38:08,876 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:38:08,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:38:08,877 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:38:08,877 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:38:08,877 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:38:08,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:38:08,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:38:08,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:38:08,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:38:08,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:38:08,879 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:38:08,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:38:08,882 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:38:08,882 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:38:08,883 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:38:08,883 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:38:08,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b6f5676df76ead7ff47af365c70465c7b9cb0ddd7acfe90754727af80919440 [2024-10-24 15:38:09,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:38:09,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:38:09,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:38:09,184 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:38:09,184 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:38:09,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2024-10-24 15:38:10,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:38:10,912 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:38:10,912 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-2.i [2024-10-24 15:38:10,931 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76793a3b8/9a215b1cb34649778042760fc27d24d7/FLAG462343d78 [2024-10-24 15:38:10,947 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76793a3b8/9a215b1cb34649778042760fc27d24d7 [2024-10-24 15:38:10,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:38:10,952 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:38:10,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:38:10,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:38:10,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:38:10,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:38:10" (1/1) ... [2024-10-24 15:38:10,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac493b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:10, skipping insertion in model container [2024-10-24 15:38:10,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:38:10" (1/1) ... [2024-10-24 15:38:11,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:38:11,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:38:11,511 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:38:11,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:38:11,612 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:38:11,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11 WrapperNode [2024-10-24 15:38:11,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:38:11,614 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:38:11,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:38:11,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:38:11,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11" (1/1) ... [2024-10-24 15:38:11,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11" (1/1) ... [2024-10-24 15:38:11,662 INFO L138 Inliner]: procedures = 265, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2024-10-24 15:38:11,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:38:11,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:38:11,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:38:11,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:38:11,672 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11" (1/1) ... [2024-10-24 15:38:11,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11" (1/1) ... [2024-10-24 15:38:11,675 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11" (1/1) ... [2024-10-24 15:38:11,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11" (1/1) ... [2024-10-24 15:38:11,683 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11" (1/1) ... [2024-10-24 15:38:11,692 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11" (1/1) ... [2024-10-24 15:38:11,694 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11" (1/1) ... [2024-10-24 15:38:11,695 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11" (1/1) ... [2024-10-24 15:38:11,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:38:11,698 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:38:11,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:38:11,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:38:11,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11" (1/1) ... [2024-10-24 15:38:11,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:38:11,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:38:11,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:38:11,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:38:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:38:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:38:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:38:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:38:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:38:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:38:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:38:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:38:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-24 15:38:11,791 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-24 15:38:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:38:11,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:38:11,796 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:38:11,993 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:38:11,997 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:38:12,173 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:38:12,173 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:38:12,198 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:38:12,199 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 15:38:12,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:38:12 BoogieIcfgContainer [2024-10-24 15:38:12,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:38:12,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:38:12,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:38:12,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:38:12,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:38:10" (1/3) ... [2024-10-24 15:38:12,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e719a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:38:12, skipping insertion in model container [2024-10-24 15:38:12,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:38:11" (2/3) ... [2024-10-24 15:38:12,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e719a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:38:12, skipping insertion in model container [2024-10-24 15:38:12,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:38:12" (3/3) ... [2024-10-24 15:38:12,206 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race-2.i [2024-10-24 15:38:12,221 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:38:12,221 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-24 15:38:12,221 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:38:12,268 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:38:12,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 89 transitions, 185 flow [2024-10-24 15:38:12,359 INFO L124 PetriNetUnfolderBase]: 6/123 cut-off events. [2024-10-24 15:38:12,359 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:38:12,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 123 events. 6/123 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2024-10-24 15:38:12,364 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 89 transitions, 185 flow [2024-10-24 15:38:12,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 89 transitions, 185 flow [2024-10-24 15:38:12,376 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:38:12,383 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;@6927cd59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:38:12,383 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 15:38:12,394 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:38:12,395 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-24 15:38:12,395 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:38:12,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:12,396 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:12,396 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:38:12,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:12,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1930866065, now seen corresponding path program 1 times [2024-10-24 15:38:12,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:12,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534486915] [2024-10-24 15:38:12,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:12,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:12,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:12,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:12,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534486915] [2024-10-24 15:38:12,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534486915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:12,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:12,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:38:12,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826252093] [2024-10-24 15:38:12,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:12,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:12,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:12,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:12,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:12,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 89 [2024-10-24 15:38:12,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 89 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:12,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:12,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 89 [2024-10-24 15:38:12,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:12,853 INFO L124 PetriNetUnfolderBase]: 8/161 cut-off events. [2024-10-24 15:38:12,853 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-10-24 15:38:12,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 161 events. 8/161 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 410 event pairs, 1 based on Foata normal form. 8/152 useless extension candidates. Maximal degree in co-relation 122. Up to 16 conditions per place. [2024-10-24 15:38:12,855 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 8 selfloop transitions, 3 changer transitions 2/90 dead transitions. [2024-10-24 15:38:12,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 90 transitions, 211 flow [2024-10-24 15:38:12,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:12,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:12,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2024-10-24 15:38:12,874 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9363295880149812 [2024-10-24 15:38:12,876 INFO L175 Difference]: Start difference. First operand has 88 places, 89 transitions, 185 flow. Second operand 3 states and 250 transitions. [2024-10-24 15:38:12,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 90 transitions, 211 flow [2024-10-24 15:38:12,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 90 transitions, 211 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:38:12,884 INFO L231 Difference]: Finished difference. Result has 92 places, 87 transitions, 199 flow [2024-10-24 15:38:12,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=92, PETRI_TRANSITIONS=87} [2024-10-24 15:38:12,895 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-10-24 15:38:12,896 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 87 transitions, 199 flow [2024-10-24 15:38:12,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:12,897 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:12,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:12,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:38:12,899 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:38:12,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:12,900 INFO L85 PathProgramCache]: Analyzing trace with hash 894653936, now seen corresponding path program 1 times [2024-10-24 15:38:12,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:12,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463422135] [2024-10-24 15:38:12,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:12,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:13,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:13,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:13,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463422135] [2024-10-24 15:38:13,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463422135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:13,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:13,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:38:13,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584701886] [2024-10-24 15:38:13,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:13,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:38:13,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:13,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:38:13,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:38:13,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 89 [2024-10-24 15:38:13,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 87 transitions, 199 flow. Second operand has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:13,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:13,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 89 [2024-10-24 15:38:13,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:13,880 INFO L124 PetriNetUnfolderBase]: 31/242 cut-off events. [2024-10-24 15:38:13,880 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-24 15:38:13,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 242 events. 31/242 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1057 event pairs, 5 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 276. Up to 62 conditions per place. [2024-10-24 15:38:13,884 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 24 selfloop transitions, 5 changer transitions 0/94 dead transitions. [2024-10-24 15:38:13,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 94 transitions, 271 flow [2024-10-24 15:38:13,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:38:13,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:38:13,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 414 transitions. [2024-10-24 15:38:13,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7752808988764045 [2024-10-24 15:38:13,891 INFO L175 Difference]: Start difference. First operand has 92 places, 87 transitions, 199 flow. Second operand 6 states and 414 transitions. [2024-10-24 15:38:13,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 94 transitions, 271 flow [2024-10-24 15:38:13,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 94 transitions, 265 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:38:13,896 INFO L231 Difference]: Finished difference. Result has 93 places, 86 transitions, 201 flow [2024-10-24 15:38:13,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=201, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2024-10-24 15:38:13,897 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-10-24 15:38:13,897 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 201 flow [2024-10-24 15:38:13,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.5) internal successors, (393), 6 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:13,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:13,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:13,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:38:13,898 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:38:13,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:13,900 INFO L85 PathProgramCache]: Analyzing trace with hash -2009182366, now seen corresponding path program 1 times [2024-10-24 15:38:13,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:13,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821591237] [2024-10-24 15:38:13,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:13,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:13,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:13,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:13,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821591237] [2024-10-24 15:38:13,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821591237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:13,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:13,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:38:13,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692690386] [2024-10-24 15:38:13,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:13,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:38:13,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:13,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:38:13,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:38:14,069 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 89 [2024-10-24 15:38:14,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 201 flow. Second operand has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:14,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:14,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 89 [2024-10-24 15:38:14,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:14,136 INFO L124 PetriNetUnfolderBase]: 17/230 cut-off events. [2024-10-24 15:38:14,139 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:38:14,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 230 events. 17/230 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 814 event pairs, 1 based on Foata normal form. 1/217 useless extension candidates. Maximal degree in co-relation 227. Up to 49 conditions per place. [2024-10-24 15:38:14,141 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 15 selfloop transitions, 2 changer transitions 5/93 dead transitions. [2024-10-24 15:38:14,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 93 transitions, 259 flow [2024-10-24 15:38:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:38:14,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:38:14,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 449 transitions. [2024-10-24 15:38:14,143 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8408239700374532 [2024-10-24 15:38:14,143 INFO L175 Difference]: Start difference. First operand has 93 places, 86 transitions, 201 flow. Second operand 6 states and 449 transitions. [2024-10-24 15:38:14,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 93 transitions, 259 flow [2024-10-24 15:38:14,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 93 transitions, 249 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:38:14,149 INFO L231 Difference]: Finished difference. Result has 97 places, 86 transitions, 209 flow [2024-10-24 15:38:14,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=209, PETRI_PLACES=97, PETRI_TRANSITIONS=86} [2024-10-24 15:38:14,150 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-10-24 15:38:14,150 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 86 transitions, 209 flow [2024-10-24 15:38:14,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:14,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:14,151 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:14,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:38:14,152 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:38:14,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:14,153 INFO L85 PathProgramCache]: Analyzing trace with hash -667923900, now seen corresponding path program 1 times [2024-10-24 15:38:14,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:14,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628829674] [2024-10-24 15:38:14,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:14,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:14,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628829674] [2024-10-24 15:38:14,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628829674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:14,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:14,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:38:14,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562475249] [2024-10-24 15:38:14,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:14,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:14,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:14,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:14,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:14,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 89 [2024-10-24 15:38:14,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 86 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:14,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:14,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 89 [2024-10-24 15:38:14,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:14,253 INFO L124 PetriNetUnfolderBase]: 5/167 cut-off events. [2024-10-24 15:38:14,253 INFO L125 PetriNetUnfolderBase]: For 19/32 co-relation queries the response was YES. [2024-10-24 15:38:14,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 167 events. 5/167 cut-off events. For 19/32 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 475 event pairs, 3 based on Foata normal form. 1/158 useless extension candidates. Maximal degree in co-relation 187. Up to 25 conditions per place. [2024-10-24 15:38:14,255 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 8 selfloop transitions, 4 changer transitions 3/89 dead transitions. [2024-10-24 15:38:14,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 89 transitions, 245 flow [2024-10-24 15:38:14,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:14,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:14,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2024-10-24 15:38:14,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9063670411985019 [2024-10-24 15:38:14,258 INFO L175 Difference]: Start difference. First operand has 97 places, 86 transitions, 209 flow. Second operand 3 states and 242 transitions. [2024-10-24 15:38:14,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 89 transitions, 245 flow [2024-10-24 15:38:14,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 231 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-24 15:38:14,263 INFO L231 Difference]: Finished difference. Result has 93 places, 86 transitions, 217 flow [2024-10-24 15:38:14,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2024-10-24 15:38:14,264 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-10-24 15:38:14,264 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 217 flow [2024-10-24 15:38:14,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:14,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:14,265 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:14,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:38:14,267 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:38:14,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:14,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1285259620, now seen corresponding path program 1 times [2024-10-24 15:38:14,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:14,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826738845] [2024-10-24 15:38:14,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:14,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:14,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 15:38:14,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:14,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826738845] [2024-10-24 15:38:14,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826738845] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:14,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:14,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:38:14,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72213753] [2024-10-24 15:38:14,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:14,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:38:14,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:14,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:38:14,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:38:14,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 89 [2024-10-24 15:38:14,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 217 flow. Second operand has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:14,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:14,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 89 [2024-10-24 15:38:14,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:14,789 INFO L124 PetriNetUnfolderBase]: 25/280 cut-off events. [2024-10-24 15:38:14,789 INFO L125 PetriNetUnfolderBase]: For 48/51 co-relation queries the response was YES. [2024-10-24 15:38:14,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 280 events. 25/280 cut-off events. For 48/51 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1222 event pairs, 15 based on Foata normal form. 0/271 useless extension candidates. Maximal degree in co-relation 370. Up to 55 conditions per place. [2024-10-24 15:38:14,792 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 12 selfloop transitions, 0 changer transitions 18/93 dead transitions. [2024-10-24 15:38:14,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 93 transitions, 285 flow [2024-10-24 15:38:14,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:38:14,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:38:14,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 424 transitions. [2024-10-24 15:38:14,794 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7940074906367042 [2024-10-24 15:38:14,794 INFO L175 Difference]: Start difference. First operand has 93 places, 86 transitions, 217 flow. Second operand 6 states and 424 transitions. [2024-10-24 15:38:14,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 93 transitions, 285 flow [2024-10-24 15:38:14,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 93 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:38:14,798 INFO L231 Difference]: Finished difference. Result has 95 places, 75 transitions, 184 flow [2024-10-24 15:38:14,798 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=184, PETRI_PLACES=95, PETRI_TRANSITIONS=75} [2024-10-24 15:38:14,802 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 7 predicate places. [2024-10-24 15:38:14,802 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 75 transitions, 184 flow [2024-10-24 15:38:14,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:14,802 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:14,802 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:14,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:38:14,803 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-24 15:38:14,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:14,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1012954957, now seen corresponding path program 1 times [2024-10-24 15:38:14,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:14,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223594197] [2024-10-24 15:38:14,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:14,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:38:14,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:38:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:38:14,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:38:14,867 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:38:14,868 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-10-24 15:38:14,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-10-24 15:38:14,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-10-24 15:38:14,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-10-24 15:38:14,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-10-24 15:38:14,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-10-24 15:38:14,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:38:14,871 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-24 15:38:14,874 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 15:38:14,874 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-24 15:38:14,889 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 15:38:14,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 107 transitions, 230 flow [2024-10-24 15:38:14,914 INFO L124 PetriNetUnfolderBase]: 11/206 cut-off events. [2024-10-24 15:38:14,915 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-24 15:38:14,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 206 events. 11/206 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 446 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 125. Up to 8 conditions per place. [2024-10-24 15:38:14,916 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 107 transitions, 230 flow [2024-10-24 15:38:14,917 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 107 transitions, 230 flow [2024-10-24 15:38:14,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:38:14,919 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;@6927cd59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:38:14,919 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-24 15:38:14,923 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:38:14,923 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-24 15:38:14,923 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:38:14,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:14,923 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:14,923 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-24 15:38:14,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:14,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1073777201, now seen corresponding path program 1 times [2024-10-24 15:38:14,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:14,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882830186] [2024-10-24 15:38:14,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:14,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:14,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:14,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882830186] [2024-10-24 15:38:14,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882830186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:14,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:14,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:38:14,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922661340] [2024-10-24 15:38:14,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:14,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:14,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:14,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:14,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:14,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 107 [2024-10-24 15:38:14,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:14,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:14,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 107 [2024-10-24 15:38:14,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:15,062 INFO L124 PetriNetUnfolderBase]: 119/719 cut-off events. [2024-10-24 15:38:15,062 INFO L125 PetriNetUnfolderBase]: For 44/68 co-relation queries the response was YES. [2024-10-24 15:38:15,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 719 events. 119/719 cut-off events. For 44/68 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4242 event pairs, 50 based on Foata normal form. 36/670 useless extension candidates. Maximal degree in co-relation 741. Up to 139 conditions per place. [2024-10-24 15:38:15,067 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 16 selfloop transitions, 4 changer transitions 1/111 dead transitions. [2024-10-24 15:38:15,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 111 transitions, 278 flow [2024-10-24 15:38:15,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:15,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:15,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2024-10-24 15:38:15,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9252336448598131 [2024-10-24 15:38:15,069 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 230 flow. Second operand 3 states and 297 transitions. [2024-10-24 15:38:15,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 111 transitions, 278 flow [2024-10-24 15:38:15,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 111 transitions, 278 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:38:15,072 INFO L231 Difference]: Finished difference. Result has 111 places, 106 transitions, 252 flow [2024-10-24 15:38:15,072 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=111, PETRI_TRANSITIONS=106} [2024-10-24 15:38:15,072 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 4 predicate places. [2024-10-24 15:38:15,073 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 252 flow [2024-10-24 15:38:15,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:15,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:15,073 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:15,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:38:15,073 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-24 15:38:15,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:15,074 INFO L85 PathProgramCache]: Analyzing trace with hash -76665168, now seen corresponding path program 1 times [2024-10-24 15:38:15,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:15,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662182018] [2024-10-24 15:38:15,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:15,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:15,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:15,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662182018] [2024-10-24 15:38:15,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662182018] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:15,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:15,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:38:15,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175537537] [2024-10-24 15:38:15,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:15,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:38:15,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:15,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:38:15,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:38:15,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 107 [2024-10-24 15:38:15,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 252 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:15,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:15,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 107 [2024-10-24 15:38:15,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:15,592 INFO L124 PetriNetUnfolderBase]: 299/1306 cut-off events. [2024-10-24 15:38:15,593 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-10-24 15:38:15,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2039 conditions, 1306 events. 299/1306 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 9787 event pairs, 58 based on Foata normal form. 0/1174 useless extension candidates. Maximal degree in co-relation 1408. Up to 372 conditions per place. [2024-10-24 15:38:15,605 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 36 selfloop transitions, 5 changer transitions 0/121 dead transitions. [2024-10-24 15:38:15,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 121 transitions, 364 flow [2024-10-24 15:38:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:38:15,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:38:15,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 510 transitions. [2024-10-24 15:38:15,607 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.794392523364486 [2024-10-24 15:38:15,607 INFO L175 Difference]: Start difference. First operand has 111 places, 106 transitions, 252 flow. Second operand 6 states and 510 transitions. [2024-10-24 15:38:15,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 121 transitions, 364 flow [2024-10-24 15:38:15,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 121 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:38:15,612 INFO L231 Difference]: Finished difference. Result has 112 places, 105 transitions, 252 flow [2024-10-24 15:38:15,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=252, PETRI_PLACES=112, PETRI_TRANSITIONS=105} [2024-10-24 15:38:15,613 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 5 predicate places. [2024-10-24 15:38:15,613 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 105 transitions, 252 flow [2024-10-24 15:38:15,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:15,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:15,614 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:15,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:38:15,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-24 15:38:15,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:15,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1314465826, now seen corresponding path program 1 times [2024-10-24 15:38:15,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:15,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628501465] [2024-10-24 15:38:15,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:15,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:15,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:15,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:15,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628501465] [2024-10-24 15:38:15,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628501465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:15,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:15,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:38:15,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428825934] [2024-10-24 15:38:15,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:15,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:38:15,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:15,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:38:15,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:38:15,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 107 [2024-10-24 15:38:15,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 105 transitions, 252 flow. Second operand has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:15,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:15,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 107 [2024-10-24 15:38:15,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:15,901 INFO L124 PetriNetUnfolderBase]: 179/1195 cut-off events. [2024-10-24 15:38:15,901 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-10-24 15:38:15,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1678 conditions, 1195 events. 179/1195 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8712 event pairs, 75 based on Foata normal form. 1/1082 useless extension candidates. Maximal degree in co-relation 560. Up to 300 conditions per place. [2024-10-24 15:38:15,907 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 20 selfloop transitions, 2 changer transitions 5/113 dead transitions. [2024-10-24 15:38:15,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 113 transitions, 322 flow [2024-10-24 15:38:15,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:38:15,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:38:15,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 538 transitions. [2024-10-24 15:38:15,909 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.838006230529595 [2024-10-24 15:38:15,909 INFO L175 Difference]: Start difference. First operand has 112 places, 105 transitions, 252 flow. Second operand 6 states and 538 transitions. [2024-10-24 15:38:15,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 113 transitions, 322 flow [2024-10-24 15:38:15,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 113 transitions, 312 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:38:15,913 INFO L231 Difference]: Finished difference. Result has 116 places, 106 transitions, 264 flow [2024-10-24 15:38:15,913 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=264, PETRI_PLACES=116, PETRI_TRANSITIONS=106} [2024-10-24 15:38:15,914 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 9 predicate places. [2024-10-24 15:38:15,914 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 106 transitions, 264 flow [2024-10-24 15:38:15,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.4) internal successors, (432), 5 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:15,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:15,915 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:15,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 15:38:15,915 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-24 15:38:15,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:15,916 INFO L85 PathProgramCache]: Analyzing trace with hash -2079582252, now seen corresponding path program 1 times [2024-10-24 15:38:15,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:15,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989569011] [2024-10-24 15:38:15,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:15,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:15,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:15,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:15,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989569011] [2024-10-24 15:38:15,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989569011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:15,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:15,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:38:15,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184939491] [2024-10-24 15:38:15,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:15,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:15,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:15,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:15,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:15,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2024-10-24 15:38:15,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 106 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:15,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:15,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2024-10-24 15:38:15,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:16,070 INFO L124 PetriNetUnfolderBase]: 165/981 cut-off events. [2024-10-24 15:38:16,071 INFO L125 PetriNetUnfolderBase]: For 182/299 co-relation queries the response was YES. [2024-10-24 15:38:16,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1597 conditions, 981 events. 165/981 cut-off events. For 182/299 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7175 event pairs, 88 based on Foata normal form. 3/880 useless extension candidates. Maximal degree in co-relation 1539. Up to 269 conditions per place. [2024-10-24 15:38:16,076 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 19 selfloop transitions, 7 changer transitions 0/115 dead transitions. [2024-10-24 15:38:16,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 115 transitions, 348 flow [2024-10-24 15:38:16,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:16,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:16,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2024-10-24 15:38:16,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9065420560747663 [2024-10-24 15:38:16,078 INFO L175 Difference]: Start difference. First operand has 116 places, 106 transitions, 264 flow. Second operand 3 states and 291 transitions. [2024-10-24 15:38:16,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 115 transitions, 348 flow [2024-10-24 15:38:16,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 115 transitions, 336 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-24 15:38:16,081 INFO L231 Difference]: Finished difference. Result has 113 places, 111 transitions, 308 flow [2024-10-24 15:38:16,081 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=113, PETRI_TRANSITIONS=111} [2024-10-24 15:38:16,082 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 6 predicate places. [2024-10-24 15:38:16,082 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 111 transitions, 308 flow [2024-10-24 15:38:16,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:16,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:16,083 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:16,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 15:38:16,083 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-24 15:38:16,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:16,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1021294111, now seen corresponding path program 1 times [2024-10-24 15:38:16,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:16,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794452723] [2024-10-24 15:38:16,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:16,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 15:38:16,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:16,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794452723] [2024-10-24 15:38:16,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794452723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:16,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:16,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:38:16,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533345126] [2024-10-24 15:38:16,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:16,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:38:16,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:16,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:38:16,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:38:16,493 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 107 [2024-10-24 15:38:16,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 111 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:16,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:16,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 107 [2024-10-24 15:38:16,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:16,692 INFO L124 PetriNetUnfolderBase]: 356/1815 cut-off events. [2024-10-24 15:38:16,692 INFO L125 PetriNetUnfolderBase]: For 306/352 co-relation queries the response was YES. [2024-10-24 15:38:16,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2992 conditions, 1815 events. 356/1815 cut-off events. For 306/352 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 15341 event pairs, 177 based on Foata normal form. 3/1659 useless extension candidates. Maximal degree in co-relation 2422. Up to 360 conditions per place. [2024-10-24 15:38:16,704 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 34 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2024-10-24 15:38:16,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 126 transitions, 416 flow [2024-10-24 15:38:16,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:38:16,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:38:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 520 transitions. [2024-10-24 15:38:16,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8099688473520249 [2024-10-24 15:38:16,706 INFO L175 Difference]: Start difference. First operand has 113 places, 111 transitions, 308 flow. Second operand 6 states and 520 transitions. [2024-10-24 15:38:16,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 126 transitions, 416 flow [2024-10-24 15:38:16,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 126 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:38:16,744 INFO L231 Difference]: Finished difference. Result has 115 places, 110 transitions, 302 flow [2024-10-24 15:38:16,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=115, PETRI_TRANSITIONS=110} [2024-10-24 15:38:16,745 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 8 predicate places. [2024-10-24 15:38:16,745 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 110 transitions, 302 flow [2024-10-24 15:38:16,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:16,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:16,746 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:16,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 15:38:16,746 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-24 15:38:16,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:16,746 INFO L85 PathProgramCache]: Analyzing trace with hash 179882135, now seen corresponding path program 1 times [2024-10-24 15:38:16,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:16,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059456532] [2024-10-24 15:38:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:16,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:16,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:16,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:16,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059456532] [2024-10-24 15:38:16,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059456532] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:38:16,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448720096] [2024-10-24 15:38:16,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:16,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:38:16,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:38:16,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:38:16,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 15:38:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:16,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:38:16,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:38:17,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:17,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:38:17,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:17,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448720096] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:38:17,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:38:17,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-10-24 15:38:17,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261998673] [2024-10-24 15:38:17,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:38:17,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 15:38:17,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:17,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 15:38:17,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-24 15:38:17,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 107 [2024-10-24 15:38:17,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 110 transitions, 302 flow. Second operand has 9 states, 9 states have (on average 85.22222222222223) internal successors, (767), 9 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:17,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:17,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 107 [2024-10-24 15:38:17,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:17,505 INFO L124 PetriNetUnfolderBase]: 161/977 cut-off events. [2024-10-24 15:38:17,505 INFO L125 PetriNetUnfolderBase]: For 131/153 co-relation queries the response was YES. [2024-10-24 15:38:17,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1598 conditions, 977 events. 161/977 cut-off events. For 131/153 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6598 event pairs, 35 based on Foata normal form. 0/906 useless extension candidates. Maximal degree in co-relation 952. Up to 157 conditions per place. [2024-10-24 15:38:17,512 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 27 selfloop transitions, 9 changer transitions 9/132 dead transitions. [2024-10-24 15:38:17,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 132 transitions, 440 flow [2024-10-24 15:38:17,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 15:38:17,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 15:38:17,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 710 transitions. [2024-10-24 15:38:17,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8294392523364486 [2024-10-24 15:38:17,515 INFO L175 Difference]: Start difference. First operand has 115 places, 110 transitions, 302 flow. Second operand 8 states and 710 transitions. [2024-10-24 15:38:17,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 132 transitions, 440 flow [2024-10-24 15:38:17,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 132 transitions, 428 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:38:17,518 INFO L231 Difference]: Finished difference. Result has 120 places, 111 transitions, 325 flow [2024-10-24 15:38:17,519 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=325, PETRI_PLACES=120, PETRI_TRANSITIONS=111} [2024-10-24 15:38:17,519 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 13 predicate places. [2024-10-24 15:38:17,519 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 111 transitions, 325 flow [2024-10-24 15:38:17,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 85.22222222222223) internal successors, (767), 9 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:17,520 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:17,520 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:17,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 15:38:17,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-24 15:38:17,725 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-24 15:38:17,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:17,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1060604224, now seen corresponding path program 1 times [2024-10-24 15:38:17,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:17,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106337366] [2024-10-24 15:38:17,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:17,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:17,784 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:38:17,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:17,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106337366] [2024-10-24 15:38:17,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106337366] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:17,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:17,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:38:17,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334944254] [2024-10-24 15:38:17,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:17,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:17,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:17,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:17,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:17,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2024-10-24 15:38:17,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 111 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:17,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:17,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2024-10-24 15:38:17,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:17,894 INFO L124 PetriNetUnfolderBase]: 56/601 cut-off events. [2024-10-24 15:38:17,894 INFO L125 PetriNetUnfolderBase]: For 229/290 co-relation queries the response was YES. [2024-10-24 15:38:17,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1036 conditions, 601 events. 56/601 cut-off events. For 229/290 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3609 event pairs, 30 based on Foata normal form. 3/581 useless extension candidates. Maximal degree in co-relation 910. Up to 119 conditions per place. [2024-10-24 15:38:17,897 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 19 selfloop transitions, 7 changer transitions 1/118 dead transitions. [2024-10-24 15:38:17,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 118 transitions, 402 flow [2024-10-24 15:38:17,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:17,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:17,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2024-10-24 15:38:17,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9034267912772586 [2024-10-24 15:38:17,898 INFO L175 Difference]: Start difference. First operand has 120 places, 111 transitions, 325 flow. Second operand 3 states and 290 transitions. [2024-10-24 15:38:17,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 118 transitions, 402 flow [2024-10-24 15:38:17,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 118 transitions, 396 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 15:38:17,901 INFO L231 Difference]: Finished difference. Result has 121 places, 114 transitions, 369 flow [2024-10-24 15:38:17,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=369, PETRI_PLACES=121, PETRI_TRANSITIONS=114} [2024-10-24 15:38:17,903 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 14 predicate places. [2024-10-24 15:38:17,903 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 114 transitions, 369 flow [2024-10-24 15:38:17,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:17,903 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:17,904 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:17,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 15:38:17,904 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-10-24 15:38:17,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:17,904 INFO L85 PathProgramCache]: Analyzing trace with hash -881547959, now seen corresponding path program 1 times [2024-10-24 15:38:17,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:17,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529285023] [2024-10-24 15:38:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:17,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:38:17,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:38:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:38:17,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:38:17,962 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:38:17,962 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-10-24 15:38:17,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-10-24 15:38:17,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-10-24 15:38:17,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-10-24 15:38:17,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-10-24 15:38:17,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-10-24 15:38:17,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-10-24 15:38:17,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 15:38:17,964 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:17,965 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 15:38:17,965 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-24 15:38:17,991 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-24 15:38:17,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 125 transitions, 277 flow [2024-10-24 15:38:18,024 INFO L124 PetriNetUnfolderBase]: 21/336 cut-off events. [2024-10-24 15:38:18,024 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-24 15:38:18,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 336 events. 21/336 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 902 event pairs, 1 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 214. Up to 16 conditions per place. [2024-10-24 15:38:18,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 125 transitions, 277 flow [2024-10-24 15:38:18,028 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 125 transitions, 277 flow [2024-10-24 15:38:18,029 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:38:18,030 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;@6927cd59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:38:18,032 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-24 15:38:18,036 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:38:18,036 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-24 15:38:18,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:38:18,036 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:18,037 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:18,037 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-24 15:38:18,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:18,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1758380177, now seen corresponding path program 1 times [2024-10-24 15:38:18,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:18,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058053621] [2024-10-24 15:38:18,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:18,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:18,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:18,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058053621] [2024-10-24 15:38:18,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058053621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:18,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:18,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:38:18,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919285232] [2024-10-24 15:38:18,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:18,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:18,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:18,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:18,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:18,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 125 [2024-10-24 15:38:18,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 125 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:18,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:18,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 125 [2024-10-24 15:38:18,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:18,518 INFO L124 PetriNetUnfolderBase]: 1071/3960 cut-off events. [2024-10-24 15:38:18,518 INFO L125 PetriNetUnfolderBase]: For 401/506 co-relation queries the response was YES. [2024-10-24 15:38:18,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5875 conditions, 3960 events. 1071/3960 cut-off events. For 401/506 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 35581 event pairs, 542 based on Foata normal form. 179/3698 useless extension candidates. Maximal degree in co-relation 4604. Up to 1110 conditions per place. [2024-10-24 15:38:18,546 INFO L140 encePairwiseOnDemand]: 116/125 looper letters, 23 selfloop transitions, 5 changer transitions 1/132 dead transitions. [2024-10-24 15:38:18,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 132 transitions, 347 flow [2024-10-24 15:38:18,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:18,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:18,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-10-24 15:38:18,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9173333333333333 [2024-10-24 15:38:18,548 INFO L175 Difference]: Start difference. First operand has 126 places, 125 transitions, 277 flow. Second operand 3 states and 344 transitions. [2024-10-24 15:38:18,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 132 transitions, 347 flow [2024-10-24 15:38:18,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 132 transitions, 347 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:38:18,551 INFO L231 Difference]: Finished difference. Result has 130 places, 125 transitions, 307 flow [2024-10-24 15:38:18,552 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=130, PETRI_TRANSITIONS=125} [2024-10-24 15:38:18,553 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 4 predicate places. [2024-10-24 15:38:18,554 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 125 transitions, 307 flow [2024-10-24 15:38:18,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:18,554 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:18,554 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:18,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 15:38:18,555 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-24 15:38:18,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:18,555 INFO L85 PathProgramCache]: Analyzing trace with hash -850124816, now seen corresponding path program 1 times [2024-10-24 15:38:18,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:18,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109780586] [2024-10-24 15:38:18,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:18,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:18,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:18,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:18,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109780586] [2024-10-24 15:38:18,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109780586] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:18,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:18,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:38:18,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202574995] [2024-10-24 15:38:18,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:18,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:38:18,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:18,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:38:18,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:38:18,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 125 [2024-10-24 15:38:18,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 125 transitions, 307 flow. Second operand has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:18,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:18,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 125 [2024-10-24 15:38:18,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:19,711 INFO L124 PetriNetUnfolderBase]: 2135/6741 cut-off events. [2024-10-24 15:38:19,711 INFO L125 PetriNetUnfolderBase]: For 509/509 co-relation queries the response was YES. [2024-10-24 15:38:19,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10971 conditions, 6741 events. 2135/6741 cut-off events. For 509/509 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 67071 event pairs, 440 based on Foata normal form. 0/5959 useless extension candidates. Maximal degree in co-relation 6909. Up to 2247 conditions per place. [2024-10-24 15:38:19,775 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 48 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-10-24 15:38:19,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 148 transitions, 459 flow [2024-10-24 15:38:19,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:38:19,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:38:19,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 606 transitions. [2024-10-24 15:38:19,777 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.808 [2024-10-24 15:38:19,778 INFO L175 Difference]: Start difference. First operand has 130 places, 125 transitions, 307 flow. Second operand 6 states and 606 transitions. [2024-10-24 15:38:19,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 148 transitions, 459 flow [2024-10-24 15:38:19,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 148 transitions, 449 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:38:19,787 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 305 flow [2024-10-24 15:38:19,787 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=305, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2024-10-24 15:38:19,788 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 5 predicate places. [2024-10-24 15:38:19,789 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 305 flow [2024-10-24 15:38:19,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.5) internal successors, (561), 6 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:19,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:19,789 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:19,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 15:38:19,789 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-24 15:38:19,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:19,790 INFO L85 PathProgramCache]: Analyzing trace with hash 541006178, now seen corresponding path program 1 times [2024-10-24 15:38:19,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:19,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171520791] [2024-10-24 15:38:19,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:19,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:19,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:19,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171520791] [2024-10-24 15:38:19,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171520791] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:19,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:19,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:38:19,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018463142] [2024-10-24 15:38:19,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:19,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:38:19,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:19,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:38:19,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:38:19,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 125 [2024-10-24 15:38:19,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 305 flow. Second operand has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:19,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:19,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 125 [2024-10-24 15:38:19,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:20,610 INFO L124 PetriNetUnfolderBase]: 1392/6275 cut-off events. [2024-10-24 15:38:20,610 INFO L125 PetriNetUnfolderBase]: For 268/268 co-relation queries the response was YES. [2024-10-24 15:38:20,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8980 conditions, 6275 events. 1392/6275 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 63462 event pairs, 1074 based on Foata normal form. 1/5612 useless extension candidates. Maximal degree in co-relation 5639. Up to 1837 conditions per place. [2024-10-24 15:38:20,648 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 24 selfloop transitions, 2 changer transitions 5/132 dead transitions. [2024-10-24 15:38:20,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 132 transitions, 383 flow [2024-10-24 15:38:20,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:38:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:38:20,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 626 transitions. [2024-10-24 15:38:20,650 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8346666666666667 [2024-10-24 15:38:20,650 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 305 flow. Second operand 6 states and 626 transitions. [2024-10-24 15:38:20,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 132 transitions, 383 flow [2024-10-24 15:38:20,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 132 transitions, 373 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:38:20,653 INFO L231 Difference]: Finished difference. Result has 135 places, 125 transitions, 317 flow [2024-10-24 15:38:20,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=317, PETRI_PLACES=135, PETRI_TRANSITIONS=125} [2024-10-24 15:38:20,655 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 9 predicate places. [2024-10-24 15:38:20,655 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 317 flow [2024-10-24 15:38:20,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:20,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:20,656 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:20,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 15:38:20,656 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-24 15:38:20,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:20,656 INFO L85 PathProgramCache]: Analyzing trace with hash 917682500, now seen corresponding path program 1 times [2024-10-24 15:38:20,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:20,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359039885] [2024-10-24 15:38:20,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:20,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:20,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:20,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:20,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359039885] [2024-10-24 15:38:20,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359039885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:20,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:20,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:38:20,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967345163] [2024-10-24 15:38:20,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:20,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:20,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:20,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:20,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:20,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 125 [2024-10-24 15:38:20,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 317 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:20,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:20,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 125 [2024-10-24 15:38:20,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:21,537 INFO L124 PetriNetUnfolderBase]: 1740/6509 cut-off events. [2024-10-24 15:38:21,537 INFO L125 PetriNetUnfolderBase]: For 1635/2354 co-relation queries the response was YES. [2024-10-24 15:38:21,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11100 conditions, 6509 events. 1740/6509 cut-off events. For 1635/2354 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 67622 event pairs, 967 based on Foata normal form. 10/5761 useless extension candidates. Maximal degree in co-relation 11041. Up to 2240 conditions per place. [2024-10-24 15:38:21,758 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 29 selfloop transitions, 9 changer transitions 0/140 dead transitions. [2024-10-24 15:38:21,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 140 transitions, 451 flow [2024-10-24 15:38:21,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:21,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:21,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2024-10-24 15:38:21,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9066666666666666 [2024-10-24 15:38:21,760 INFO L175 Difference]: Start difference. First operand has 135 places, 125 transitions, 317 flow. Second operand 3 states and 340 transitions. [2024-10-24 15:38:21,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 140 transitions, 451 flow [2024-10-24 15:38:21,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 140 transitions, 439 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-24 15:38:21,774 INFO L231 Difference]: Finished difference. Result has 132 places, 132 transitions, 381 flow [2024-10-24 15:38:21,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=381, PETRI_PLACES=132, PETRI_TRANSITIONS=132} [2024-10-24 15:38:21,775 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 6 predicate places. [2024-10-24 15:38:21,776 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 132 transitions, 381 flow [2024-10-24 15:38:21,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:21,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:21,776 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:21,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 15:38:21,777 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-24 15:38:21,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:21,777 INFO L85 PathProgramCache]: Analyzing trace with hash 161140844, now seen corresponding path program 1 times [2024-10-24 15:38:21,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:21,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916350524] [2024-10-24 15:38:21,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:21,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:22,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 15:38:22,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:22,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916350524] [2024-10-24 15:38:22,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916350524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:22,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:22,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:38:22,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935101565] [2024-10-24 15:38:22,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:22,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:38:22,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:22,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:38:22,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:38:22,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 125 [2024-10-24 15:38:22,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 132 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:22,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:22,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 125 [2024-10-24 15:38:22,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:23,658 INFO L124 PetriNetUnfolderBase]: 2856/10331 cut-off events. [2024-10-24 15:38:23,659 INFO L125 PetriNetUnfolderBase]: For 1730/2294 co-relation queries the response was YES. [2024-10-24 15:38:23,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17463 conditions, 10331 events. 2856/10331 cut-off events. For 1730/2294 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 114378 event pairs, 1400 based on Foata normal form. 17/9184 useless extension candidates. Maximal degree in co-relation 13963. Up to 2139 conditions per place. [2024-10-24 15:38:23,731 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 46 selfloop transitions, 5 changer transitions 0/155 dead transitions. [2024-10-24 15:38:23,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 155 transitions, 529 flow [2024-10-24 15:38:23,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:38:23,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:38:23,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 616 transitions. [2024-10-24 15:38:23,733 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8213333333333334 [2024-10-24 15:38:23,734 INFO L175 Difference]: Start difference. First operand has 132 places, 132 transitions, 381 flow. Second operand 6 states and 616 transitions. [2024-10-24 15:38:23,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 155 transitions, 529 flow [2024-10-24 15:38:23,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 155 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:38:23,745 INFO L231 Difference]: Finished difference. Result has 134 places, 131 transitions, 371 flow [2024-10-24 15:38:23,745 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=371, PETRI_PLACES=134, PETRI_TRANSITIONS=131} [2024-10-24 15:38:23,745 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 8 predicate places. [2024-10-24 15:38:23,745 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 131 transitions, 371 flow [2024-10-24 15:38:23,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:23,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:23,746 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:23,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 15:38:23,746 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-24 15:38:23,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:23,746 INFO L85 PathProgramCache]: Analyzing trace with hash 694988840, now seen corresponding path program 1 times [2024-10-24 15:38:23,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:23,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590384413] [2024-10-24 15:38:23,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:23,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:23,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:23,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:23,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590384413] [2024-10-24 15:38:23,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590384413] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:38:23,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575294842] [2024-10-24 15:38:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:23,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:38:23,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:38:23,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:38:23,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 15:38:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:23,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:38:23,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:38:23,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:23,960 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:38:24,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:24,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575294842] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:38:24,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:38:24,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-10-24 15:38:24,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798969568] [2024-10-24 15:38:24,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:38:24,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 15:38:24,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:24,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 15:38:24,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-24 15:38:24,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 125 [2024-10-24 15:38:24,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 131 transitions, 371 flow. Second operand has 9 states, 9 states have (on average 99.22222222222223) internal successors, (893), 9 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:24,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:24,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 125 [2024-10-24 15:38:24,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:25,013 INFO L124 PetriNetUnfolderBase]: 1459/6147 cut-off events. [2024-10-24 15:38:25,013 INFO L125 PetriNetUnfolderBase]: For 935/1162 co-relation queries the response was YES. [2024-10-24 15:38:25,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10404 conditions, 6147 events. 1459/6147 cut-off events. For 935/1162 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 62125 event pairs, 454 based on Foata normal form. 1/5513 useless extension candidates. Maximal degree in co-relation 5059. Up to 1044 conditions per place. [2024-10-24 15:38:25,060 INFO L140 encePairwiseOnDemand]: 115/125 looper letters, 48 selfloop transitions, 10 changer transitions 0/163 dead transitions. [2024-10-24 15:38:25,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 163 transitions, 562 flow [2024-10-24 15:38:25,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 15:38:25,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 15:38:25,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 835 transitions. [2024-10-24 15:38:25,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.835 [2024-10-24 15:38:25,063 INFO L175 Difference]: Start difference. First operand has 134 places, 131 transitions, 371 flow. Second operand 8 states and 835 transitions. [2024-10-24 15:38:25,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 163 transitions, 562 flow [2024-10-24 15:38:25,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 163 transitions, 550 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:38:25,070 INFO L231 Difference]: Finished difference. Result has 139 places, 134 transitions, 405 flow [2024-10-24 15:38:25,070 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=405, PETRI_PLACES=139, PETRI_TRANSITIONS=134} [2024-10-24 15:38:25,070 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 13 predicate places. [2024-10-24 15:38:25,071 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 134 transitions, 405 flow [2024-10-24 15:38:25,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 99.22222222222223) internal successors, (893), 9 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:25,071 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:25,071 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:25,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 15:38:25,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-10-24 15:38:25,272 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-24 15:38:25,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:25,273 INFO L85 PathProgramCache]: Analyzing trace with hash 2119836893, now seen corresponding path program 1 times [2024-10-24 15:38:25,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:25,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357768068] [2024-10-24 15:38:25,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:25,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:25,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:25,305 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:38:25,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:25,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357768068] [2024-10-24 15:38:25,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357768068] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:25,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:25,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:38:25,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116243614] [2024-10-24 15:38:25,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:25,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:25,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:25,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:25,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:25,325 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 125 [2024-10-24 15:38:25,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 134 transitions, 405 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:25,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:25,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 125 [2024-10-24 15:38:25,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:25,745 INFO L124 PetriNetUnfolderBase]: 1088/4747 cut-off events. [2024-10-24 15:38:25,746 INFO L125 PetriNetUnfolderBase]: For 2578/2820 co-relation queries the response was YES. [2024-10-24 15:38:25,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9139 conditions, 4747 events. 1088/4747 cut-off events. For 2578/2820 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 49421 event pairs, 589 based on Foata normal form. 7/4392 useless extension candidates. Maximal degree in co-relation 8357. Up to 1450 conditions per place. [2024-10-24 15:38:25,784 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 31 selfloop transitions, 13 changer transitions 0/150 dead transitions. [2024-10-24 15:38:25,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 150 transitions, 566 flow [2024-10-24 15:38:25,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:25,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:25,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2024-10-24 15:38:25,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.904 [2024-10-24 15:38:25,786 INFO L175 Difference]: Start difference. First operand has 139 places, 134 transitions, 405 flow. Second operand 3 states and 339 transitions. [2024-10-24 15:38:25,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 150 transitions, 566 flow [2024-10-24 15:38:25,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 150 transitions, 560 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 15:38:25,792 INFO L231 Difference]: Finished difference. Result has 140 places, 143 transitions, 517 flow [2024-10-24 15:38:25,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=517, PETRI_PLACES=140, PETRI_TRANSITIONS=143} [2024-10-24 15:38:25,793 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 14 predicate places. [2024-10-24 15:38:25,793 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 143 transitions, 517 flow [2024-10-24 15:38:25,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:25,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:25,794 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:25,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 15:38:25,794 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-24 15:38:25,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:25,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1392824919, now seen corresponding path program 1 times [2024-10-24 15:38:25,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:25,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245657488] [2024-10-24 15:38:25,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:25,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:25,863 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:38:25,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:25,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245657488] [2024-10-24 15:38:25,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245657488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:25,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:25,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:38:25,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143317718] [2024-10-24 15:38:25,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:25,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:25,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:25,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:25,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:25,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 125 [2024-10-24 15:38:25,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 143 transitions, 517 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:25,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:25,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 125 [2024-10-24 15:38:25,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:26,109 INFO L124 PetriNetUnfolderBase]: 124/1629 cut-off events. [2024-10-24 15:38:26,111 INFO L125 PetriNetUnfolderBase]: For 736/839 co-relation queries the response was YES. [2024-10-24 15:38:26,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2799 conditions, 1629 events. 124/1629 cut-off events. For 736/839 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 13490 event pairs, 20 based on Foata normal form. 21/1580 useless extension candidates. Maximal degree in co-relation 1118. Up to 142 conditions per place. [2024-10-24 15:38:26,119 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 12 selfloop transitions, 6 changer transitions 0/138 dead transitions. [2024-10-24 15:38:26,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 138 transitions, 490 flow [2024-10-24 15:38:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:26,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:26,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-10-24 15:38:26,121 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.928 [2024-10-24 15:38:26,121 INFO L175 Difference]: Start difference. First operand has 140 places, 143 transitions, 517 flow. Second operand 3 states and 348 transitions. [2024-10-24 15:38:26,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 138 transitions, 490 flow [2024-10-24 15:38:26,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 138 transitions, 476 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-24 15:38:26,126 INFO L231 Difference]: Finished difference. Result has 140 places, 133 transitions, 421 flow [2024-10-24 15:38:26,127 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=421, PETRI_PLACES=140, PETRI_TRANSITIONS=133} [2024-10-24 15:38:26,127 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 14 predicate places. [2024-10-24 15:38:26,127 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 133 transitions, 421 flow [2024-10-24 15:38:26,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:26,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:26,129 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:26,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 15:38:26,129 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-24 15:38:26,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:26,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1765073251, now seen corresponding path program 1 times [2024-10-24 15:38:26,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:26,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145447759] [2024-10-24 15:38:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:26,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:26,182 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-24 15:38:26,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:26,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145447759] [2024-10-24 15:38:26,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145447759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:26,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:26,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:38:26,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446513610] [2024-10-24 15:38:26,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:26,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:26,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:26,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:26,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:26,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 125 [2024-10-24 15:38:26,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 133 transitions, 421 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:26,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:26,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 125 [2024-10-24 15:38:26,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:26,439 INFO L124 PetriNetUnfolderBase]: 203/1827 cut-off events. [2024-10-24 15:38:26,439 INFO L125 PetriNetUnfolderBase]: For 1356/1421 co-relation queries the response was YES. [2024-10-24 15:38:26,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3538 conditions, 1827 events. 203/1827 cut-off events. For 1356/1421 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 15943 event pairs, 134 based on Foata normal form. 3/1739 useless extension candidates. Maximal degree in co-relation 2957. Up to 435 conditions per place. [2024-10-24 15:38:26,447 INFO L140 encePairwiseOnDemand]: 120/125 looper letters, 25 selfloop transitions, 5 changer transitions 0/138 dead transitions. [2024-10-24 15:38:26,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 138 transitions, 503 flow [2024-10-24 15:38:26,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:26,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:26,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2024-10-24 15:38:26,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8853333333333333 [2024-10-24 15:38:26,450 INFO L175 Difference]: Start difference. First operand has 140 places, 133 transitions, 421 flow. Second operand 3 states and 332 transitions. [2024-10-24 15:38:26,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 138 transitions, 503 flow [2024-10-24 15:38:26,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 138 transitions, 497 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:38:26,456 INFO L231 Difference]: Finished difference. Result has 143 places, 136 transitions, 455 flow [2024-10-24 15:38:26,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=455, PETRI_PLACES=143, PETRI_TRANSITIONS=136} [2024-10-24 15:38:26,456 INFO L277 CegarLoopForPetriNet]: 126 programPoint places, 17 predicate places. [2024-10-24 15:38:26,456 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 136 transitions, 455 flow [2024-10-24 15:38:26,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:26,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:26,457 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:26,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-24 15:38:26,458 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-10-24 15:38:26,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:26,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1997245556, now seen corresponding path program 1 times [2024-10-24 15:38:26,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:26,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092889947] [2024-10-24 15:38:26,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:26,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:38:26,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:38:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:38:26,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:38:26,532 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:38:26,532 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-10-24 15:38:26,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-10-24 15:38:26,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-10-24 15:38:26,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-10-24 15:38:26,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-10-24 15:38:26,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-10-24 15:38:26,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-10-24 15:38:26,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-10-24 15:38:26,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 15:38:26,534 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:26,536 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-24 15:38:26,537 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-24 15:38:26,559 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-24 15:38:26,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 143 transitions, 326 flow [2024-10-24 15:38:26,630 INFO L124 PetriNetUnfolderBase]: 43/562 cut-off events. [2024-10-24 15:38:26,630 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-10-24 15:38:26,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 562 events. 43/562 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1997 event pairs, 6 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 356. Up to 32 conditions per place. [2024-10-24 15:38:26,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 143 transitions, 326 flow [2024-10-24 15:38:26,636 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 143 transitions, 326 flow [2024-10-24 15:38:26,636 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:38:26,637 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;@6927cd59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:38:26,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-10-24 15:38:26,641 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:38:26,641 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-10-24 15:38:26,641 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:38:26,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:26,641 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:26,642 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:38:26,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:26,642 INFO L85 PathProgramCache]: Analyzing trace with hash 310292303, now seen corresponding path program 1 times [2024-10-24 15:38:26,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:26,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819198903] [2024-10-24 15:38:26,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:26,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:26,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:26,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819198903] [2024-10-24 15:38:26,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819198903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:26,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:26,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:38:26,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933304064] [2024-10-24 15:38:26,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:26,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:26,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:26,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:26,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:26,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 143 [2024-10-24 15:38:26,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 143 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:26,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:26,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 143 [2024-10-24 15:38:26,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:29,269 INFO L124 PetriNetUnfolderBase]: 7859/23223 cut-off events. [2024-10-24 15:38:29,269 INFO L125 PetriNetUnfolderBase]: For 2606/2957 co-relation queries the response was YES. [2024-10-24 15:38:29,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35573 conditions, 23223 events. 7859/23223 cut-off events. For 2606/2957 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 267152 event pairs, 4292 based on Foata normal form. 903/21908 useless extension candidates. Maximal degree in co-relation 28335. Up to 7653 conditions per place. [2024-10-24 15:38:29,398 INFO L140 encePairwiseOnDemand]: 133/143 looper letters, 30 selfloop transitions, 6 changer transitions 1/153 dead transitions. [2024-10-24 15:38:29,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 153 transitions, 418 flow [2024-10-24 15:38:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:29,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:29,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 391 transitions. [2024-10-24 15:38:29,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9114219114219114 [2024-10-24 15:38:29,402 INFO L175 Difference]: Start difference. First operand has 145 places, 143 transitions, 326 flow. Second operand 3 states and 391 transitions. [2024-10-24 15:38:29,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 153 transitions, 418 flow [2024-10-24 15:38:29,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 153 transitions, 418 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:38:29,410 INFO L231 Difference]: Finished difference. Result has 149 places, 144 transitions, 364 flow [2024-10-24 15:38:29,410 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=149, PETRI_TRANSITIONS=144} [2024-10-24 15:38:29,410 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 4 predicate places. [2024-10-24 15:38:29,410 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 144 transitions, 364 flow [2024-10-24 15:38:29,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:29,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:29,411 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:29,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 15:38:29,411 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:38:29,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:29,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1425725008, now seen corresponding path program 1 times [2024-10-24 15:38:29,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:29,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650489307] [2024-10-24 15:38:29,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:29,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:29,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:29,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:29,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650489307] [2024-10-24 15:38:29,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650489307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:29,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:29,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:38:29,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492614146] [2024-10-24 15:38:29,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:29,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:38:29,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:29,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:38:29,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:38:29,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 143 [2024-10-24 15:38:29,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 144 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:29,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:29,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 143 [2024-10-24 15:38:29,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:33,811 INFO L124 PetriNetUnfolderBase]: 12676/35344 cut-off events. [2024-10-24 15:38:33,811 INFO L125 PetriNetUnfolderBase]: For 3145/3145 co-relation queries the response was YES. [2024-10-24 15:38:33,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57702 conditions, 35344 events. 12676/35344 cut-off events. For 3145/3145 co-relation queries the response was YES. Maximal size of possible extension queue 1436. Compared 432859 event pairs, 5965 based on Foata normal form. 0/31767 useless extension candidates. Maximal degree in co-relation 35470. Up to 13083 conditions per place. [2024-10-24 15:38:34,054 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 60 selfloop transitions, 5 changer transitions 0/175 dead transitions. [2024-10-24 15:38:34,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 175 transitions, 556 flow [2024-10-24 15:38:34,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:38:34,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:38:34,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2024-10-24 15:38:34,056 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2024-10-24 15:38:34,056 INFO L175 Difference]: Start difference. First operand has 149 places, 144 transitions, 364 flow. Second operand 6 states and 702 transitions. [2024-10-24 15:38:34,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 175 transitions, 556 flow [2024-10-24 15:38:34,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 175 transitions, 544 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:38:34,129 INFO L231 Difference]: Finished difference. Result has 150 places, 143 transitions, 360 flow [2024-10-24 15:38:34,129 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=360, PETRI_PLACES=150, PETRI_TRANSITIONS=143} [2024-10-24 15:38:34,130 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 5 predicate places. [2024-10-24 15:38:34,130 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 143 transitions, 360 flow [2024-10-24 15:38:34,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:34,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:34,131 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:34,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 15:38:34,131 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:38:34,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:34,131 INFO L85 PathProgramCache]: Analyzing trace with hash -34594014, now seen corresponding path program 1 times [2024-10-24 15:38:34,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:34,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136063459] [2024-10-24 15:38:34,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:34,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:34,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:34,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:34,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136063459] [2024-10-24 15:38:34,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136063459] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:34,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:34,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:38:34,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403333205] [2024-10-24 15:38:34,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:34,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:38:34,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:34,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:38:34,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:38:34,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 143 [2024-10-24 15:38:34,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 143 transitions, 360 flow. Second operand has 5 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:34,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:34,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 143 [2024-10-24 15:38:34,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:37,651 INFO L124 PetriNetUnfolderBase]: 8788/32683 cut-off events. [2024-10-24 15:38:37,651 INFO L125 PetriNetUnfolderBase]: For 1398/1398 co-relation queries the response was YES. [2024-10-24 15:38:37,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47760 conditions, 32683 events. 8788/32683 cut-off events. For 1398/1398 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 418503 event pairs, 5700 based on Foata normal form. 1/28182 useless extension candidates. Maximal degree in co-relation 16955. Up to 9905 conditions per place. [2024-10-24 15:38:37,835 INFO L140 encePairwiseOnDemand]: 135/143 looper letters, 28 selfloop transitions, 2 changer transitions 5/151 dead transitions. [2024-10-24 15:38:37,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 151 transitions, 446 flow [2024-10-24 15:38:37,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:38:37,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:38:37,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 714 transitions. [2024-10-24 15:38:37,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8321678321678322 [2024-10-24 15:38:37,838 INFO L175 Difference]: Start difference. First operand has 150 places, 143 transitions, 360 flow. Second operand 6 states and 714 transitions. [2024-10-24 15:38:37,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 151 transitions, 446 flow [2024-10-24 15:38:37,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 151 transitions, 436 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:38:37,841 INFO L231 Difference]: Finished difference. Result has 154 places, 144 transitions, 372 flow [2024-10-24 15:38:37,841 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=154, PETRI_TRANSITIONS=144} [2024-10-24 15:38:37,841 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 9 predicate places. [2024-10-24 15:38:37,841 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 144 transitions, 372 flow [2024-10-24 15:38:37,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.4) internal successors, (572), 5 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:37,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:37,842 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:37,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 15:38:37,842 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:38:37,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:37,842 INFO L85 PathProgramCache]: Analyzing trace with hash 257971780, now seen corresponding path program 1 times [2024-10-24 15:38:37,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:37,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718915812] [2024-10-24 15:38:37,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:37,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:37,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:37,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:37,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718915812] [2024-10-24 15:38:37,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718915812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:37,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:37,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:38:37,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508715029] [2024-10-24 15:38:37,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:37,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:37,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:37,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:37,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:37,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2024-10-24 15:38:37,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 144 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:37,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:37,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2024-10-24 15:38:37,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:42,263 INFO L124 PetriNetUnfolderBase]: 13629/40864 cut-off events. [2024-10-24 15:38:42,264 INFO L125 PetriNetUnfolderBase]: For 10648/13092 co-relation queries the response was YES. [2024-10-24 15:38:42,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71721 conditions, 40864 events. 13629/40864 cut-off events. For 10648/13092 co-relation queries the response was YES. Maximal size of possible extension queue 1513. Compared 523312 event pairs, 7860 based on Foata normal form. 36/36352 useless extension candidates. Maximal degree in co-relation 71661. Up to 15880 conditions per place. [2024-10-24 15:38:42,533 INFO L140 encePairwiseOnDemand]: 135/143 looper letters, 39 selfloop transitions, 11 changer transitions 0/165 dead transitions. [2024-10-24 15:38:42,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 165 transitions, 558 flow [2024-10-24 15:38:42,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:42,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:42,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2024-10-24 15:38:42,535 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9067599067599068 [2024-10-24 15:38:42,535 INFO L175 Difference]: Start difference. First operand has 154 places, 144 transitions, 372 flow. Second operand 3 states and 389 transitions. [2024-10-24 15:38:42,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 165 transitions, 558 flow [2024-10-24 15:38:42,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 165 transitions, 546 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-24 15:38:42,646 INFO L231 Difference]: Finished difference. Result has 151 places, 153 transitions, 456 flow [2024-10-24 15:38:42,646 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=151, PETRI_TRANSITIONS=153} [2024-10-24 15:38:42,646 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 6 predicate places. [2024-10-24 15:38:42,646 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 153 transitions, 456 flow [2024-10-24 15:38:42,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:42,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:42,647 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:42,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 15:38:42,647 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:38:42,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:42,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1295200181, now seen corresponding path program 1 times [2024-10-24 15:38:42,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:42,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397916931] [2024-10-24 15:38:42,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:42,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 15:38:42,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:42,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397916931] [2024-10-24 15:38:42,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397916931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:42,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:42,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:38:42,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66131410] [2024-10-24 15:38:42,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:42,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:38:42,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:42,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:38:42,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:38:42,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 143 [2024-10-24 15:38:42,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 153 transitions, 456 flow. Second operand has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:42,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:42,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 143 [2024-10-24 15:38:42,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:47,806 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([590] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_4| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_4|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][150], [130#L1024true, 170#true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 145#true, 118#L1038-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 57#L1023-5true, 140#true, Black: 150#(= |#race~data~0| 0), 175#true, 45#L1022-3true, 144#true, 142#true]) [2024-10-24 15:38:47,806 INFO L294 olderBase$Statistics]: this new event has 148 ancestors and is cut-off event [2024-10-24 15:38:47,806 INFO L297 olderBase$Statistics]: existing Event has 148 ancestors and is cut-off event [2024-10-24 15:38:47,807 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-10-24 15:38:47,807 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2024-10-24 15:38:47,916 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([638] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][182], [170#true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 118#L1038-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 57#L1023-5true, 146#true, 140#true, 141#true, 175#true, Black: 150#(= |#race~data~0| 0), 98#L1023-6true, 144#true, 23#L1023-5true]) [2024-10-24 15:38:47,916 INFO L294 olderBase$Statistics]: this new event has 152 ancestors and is cut-off event [2024-10-24 15:38:47,916 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-10-24 15:38:47,916 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-10-24 15:38:47,916 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-10-24 15:38:47,971 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([590] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_4| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_4|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][150], [170#true, 20#threadErr0ASSERT_VIOLATIONDATA_RACEtrue, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 145#true, 118#L1038-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 57#L1023-5true, 112#L1023-5true, 140#true, Black: 150#(= |#race~data~0| 0), 175#true, 144#true, 142#true]) [2024-10-24 15:38:47,971 INFO L294 olderBase$Statistics]: this new event has 152 ancestors and is cut-off event [2024-10-24 15:38:47,971 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-10-24 15:38:47,971 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-10-24 15:38:47,971 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2024-10-24 15:38:48,678 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([638] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][177], [130#L1024true, 170#true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 118#L1038-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 57#L1023-5true, 146#true, 140#true, 141#true, Black: 150#(= |#race~data~0| 0), 175#true, 144#true, 23#L1023-5true]) [2024-10-24 15:38:48,678 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is not cut-off event [2024-10-24 15:38:48,679 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2024-10-24 15:38:48,679 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2024-10-24 15:38:48,679 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2024-10-24 15:38:49,164 INFO L124 PetriNetUnfolderBase]: 19866/57035 cut-off events. [2024-10-24 15:38:49,164 INFO L125 PetriNetUnfolderBase]: For 9377/13250 co-relation queries the response was YES. [2024-10-24 15:38:49,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99820 conditions, 57035 events. 19866/57035 cut-off events. For 9377/13250 co-relation queries the response was YES. Maximal size of possible extension queue 1935. Compared 746315 event pairs, 9571 based on Foata normal form. 80/49862 useless extension candidates. Maximal degree in co-relation 78994. Up to 12589 conditions per place. [2024-10-24 15:38:49,680 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 58 selfloop transitions, 5 changer transitions 0/184 dead transitions. [2024-10-24 15:38:49,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 184 transitions, 644 flow [2024-10-24 15:38:49,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:38:49,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:38:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 712 transitions. [2024-10-24 15:38:49,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8298368298368298 [2024-10-24 15:38:49,682 INFO L175 Difference]: Start difference. First operand has 151 places, 153 transitions, 456 flow. Second operand 6 states and 712 transitions. [2024-10-24 15:38:49,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 184 transitions, 644 flow [2024-10-24 15:38:49,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 184 transitions, 622 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:38:49,777 INFO L231 Difference]: Finished difference. Result has 153 places, 152 transitions, 442 flow [2024-10-24 15:38:49,777 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=442, PETRI_PLACES=153, PETRI_TRANSITIONS=152} [2024-10-24 15:38:49,778 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 8 predicate places. [2024-10-24 15:38:49,778 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 152 transitions, 442 flow [2024-10-24 15:38:49,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:49,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:49,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:49,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 15:38:49,779 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:38:49,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:49,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1577931351, now seen corresponding path program 1 times [2024-10-24 15:38:49,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:49,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238914248] [2024-10-24 15:38:49,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:49,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:49,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:49,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238914248] [2024-10-24 15:38:49,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238914248] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:38:49,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783907835] [2024-10-24 15:38:49,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:49,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:38:49,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:38:49,864 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 15:38:49,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 15:38:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:49,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:38:49,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:38:50,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:50,034 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:38:50,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:38:50,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783907835] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:38:50,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:38:50,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-10-24 15:38:50,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433004879] [2024-10-24 15:38:50,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:38:50,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 15:38:50,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:50,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 15:38:50,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-24 15:38:50,239 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 143 [2024-10-24 15:38:50,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 152 transitions, 442 flow. Second operand has 9 states, 9 states have (on average 113.22222222222223) internal successors, (1019), 9 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:50,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:50,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 143 [2024-10-24 15:38:50,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:53,101 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([638] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][190], [Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 118#L1038-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 57#L1023-5true, 140#true, 185#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 141#true, Black: 150#(= |#race~data~0| 0), 175#true, 98#L1023-6true, 144#true, 23#L1023-5true]) [2024-10-24 15:38:53,102 INFO L294 olderBase$Statistics]: this new event has 152 ancestors and is cut-off event [2024-10-24 15:38:53,102 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-10-24 15:38:53,102 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-10-24 15:38:53,102 INFO L297 olderBase$Statistics]: existing Event has 152 ancestors and is cut-off event [2024-10-24 15:38:53,541 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([638] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_4|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_4|} AuxVars[] AssignedVars[#race~data~0][188], [130#L1024true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 118#L1038-1true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 146#true, 57#L1023-5true, 140#true, 185#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 141#true, Black: 150#(= |#race~data~0| 0), 175#true, 144#true, 23#L1023-5true]) [2024-10-24 15:38:53,541 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is not cut-off event [2024-10-24 15:38:53,541 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2024-10-24 15:38:53,542 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2024-10-24 15:38:53,542 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is not cut-off event [2024-10-24 15:38:54,201 INFO L124 PetriNetUnfolderBase]: 11178/36923 cut-off events. [2024-10-24 15:38:54,201 INFO L125 PetriNetUnfolderBase]: For 5999/7801 co-relation queries the response was YES. [2024-10-24 15:38:54,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63969 conditions, 36923 events. 11178/36923 cut-off events. For 5999/7801 co-relation queries the response was YES. Maximal size of possible extension queue 1098. Compared 472404 event pairs, 4636 based on Foata normal form. 15/32381 useless extension candidates. Maximal degree in co-relation 32374. Up to 6529 conditions per place. [2024-10-24 15:38:54,458 INFO L140 encePairwiseOnDemand]: 133/143 looper letters, 61 selfloop transitions, 10 changer transitions 0/193 dead transitions. [2024-10-24 15:38:54,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 193 transitions, 680 flow [2024-10-24 15:38:54,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 15:38:54,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 15:38:54,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 960 transitions. [2024-10-24 15:38:54,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8391608391608392 [2024-10-24 15:38:54,461 INFO L175 Difference]: Start difference. First operand has 153 places, 152 transitions, 442 flow. Second operand 8 states and 960 transitions. [2024-10-24 15:38:54,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 193 transitions, 680 flow [2024-10-24 15:38:54,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 193 transitions, 668 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:38:54,483 INFO L231 Difference]: Finished difference. Result has 158 places, 155 transitions, 476 flow [2024-10-24 15:38:54,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=476, PETRI_PLACES=158, PETRI_TRANSITIONS=155} [2024-10-24 15:38:54,484 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 13 predicate places. [2024-10-24 15:38:54,484 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 155 transitions, 476 flow [2024-10-24 15:38:54,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 113.22222222222223) internal successors, (1019), 9 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:54,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:54,485 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:54,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 15:38:54,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:38:54,689 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:38:54,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:54,689 INFO L85 PathProgramCache]: Analyzing trace with hash -404304548, now seen corresponding path program 1 times [2024-10-24 15:38:54,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:54,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52108087] [2024-10-24 15:38:54,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:54,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:38:54,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:54,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52108087] [2024-10-24 15:38:54,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52108087] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:54,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:54,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:38:54,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659037475] [2024-10-24 15:38:54,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:54,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:54,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:54,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:54,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:54,753 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2024-10-24 15:38:54,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 155 transitions, 476 flow. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:54,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:54,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2024-10-24 15:38:54,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:38:58,860 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([543] L1037-1-->L1038: Formula: (= |v_#race~data~0_1| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][157], [Black: 186#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= 1 |ULTIMATE.start_main_~threads_total~0#1|)), 33#L1024true, Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 145#true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 69#L1038true, 140#true, 185#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 143#true, 545#true, Black: 148#true, 98#L1023-6true, Black: 183#(= |ULTIMATE.start_main_~i~0#1| 0), 142#true]) [2024-10-24 15:38:58,860 INFO L294 olderBase$Statistics]: this new event has 171 ancestors and is cut-off event [2024-10-24 15:38:58,860 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2024-10-24 15:38:58,860 INFO L297 olderBase$Statistics]: existing Event has 129 ancestors and is cut-off event [2024-10-24 15:38:58,860 INFO L297 olderBase$Statistics]: existing Event has 129 ancestors and is cut-off event [2024-10-24 15:38:58,868 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([543] L1037-1-->L1038: Formula: (= |v_#race~data~0_1| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][157], [Black: 186#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= 1 |ULTIMATE.start_main_~threads_total~0#1|)), Black: 161#(= |ULTIMATE.start_main_~i~0#1| 0), 145#true, 117#L1024-3true, Black: 172#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 69#L1038true, 140#true, 185#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 143#true, 545#true, Black: 148#true, 98#L1023-6true, Black: 183#(= |ULTIMATE.start_main_~i~0#1| 0), 142#true]) [2024-10-24 15:38:58,868 INFO L294 olderBase$Statistics]: this new event has 172 ancestors and is cut-off event [2024-10-24 15:38:58,869 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2024-10-24 15:38:58,869 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2024-10-24 15:38:58,869 INFO L297 olderBase$Statistics]: existing Event has 172 ancestors and is cut-off event [2024-10-24 15:38:58,913 INFO L124 PetriNetUnfolderBase]: 11773/38290 cut-off events. [2024-10-24 15:38:58,913 INFO L125 PetriNetUnfolderBase]: For 22710/24410 co-relation queries the response was YES. [2024-10-24 15:38:59,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76142 conditions, 38290 events. 11773/38290 cut-off events. For 22710/24410 co-relation queries the response was YES. Maximal size of possible extension queue 1515. Compared 513457 event pairs, 6499 based on Foata normal form. 24/34728 useless extension candidates. Maximal degree in co-relation 68804. Up to 13617 conditions per place. [2024-10-24 15:38:59,203 INFO L140 encePairwiseOnDemand]: 135/143 looper letters, 43 selfloop transitions, 18 changer transitions 0/180 dead transitions. [2024-10-24 15:38:59,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 180 transitions, 721 flow [2024-10-24 15:38:59,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:38:59,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:38:59,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2024-10-24 15:38:59,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9044289044289044 [2024-10-24 15:38:59,205 INFO L175 Difference]: Start difference. First operand has 158 places, 155 transitions, 476 flow. Second operand 3 states and 388 transitions. [2024-10-24 15:38:59,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 180 transitions, 721 flow [2024-10-24 15:38:59,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 180 transitions, 715 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 15:38:59,227 INFO L231 Difference]: Finished difference. Result has 159 places, 169 transitions, 648 flow [2024-10-24 15:38:59,227 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=648, PETRI_PLACES=159, PETRI_TRANSITIONS=169} [2024-10-24 15:38:59,227 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 14 predicate places. [2024-10-24 15:38:59,227 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 169 transitions, 648 flow [2024-10-24 15:38:59,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:59,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:38:59,228 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:38:59,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-24 15:38:59,228 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:38:59,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:38:59,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1149769352, now seen corresponding path program 1 times [2024-10-24 15:38:59,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:38:59,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090758020] [2024-10-24 15:38:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:38:59,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:38:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:38:59,292 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-24 15:38:59,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:38:59,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090758020] [2024-10-24 15:38:59,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090758020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:38:59,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:38:59,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:38:59,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294121863] [2024-10-24 15:38:59,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:38:59,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:38:59,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:38:59,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:38:59,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:38:59,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 143 [2024-10-24 15:38:59,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 169 transitions, 648 flow. Second operand has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:38:59,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:38:59,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 143 [2024-10-24 15:38:59,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:39:00,354 INFO L124 PetriNetUnfolderBase]: 688/6572 cut-off events. [2024-10-24 15:39:00,354 INFO L125 PetriNetUnfolderBase]: For 3285/3759 co-relation queries the response was YES. [2024-10-24 15:39:00,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11505 conditions, 6572 events. 688/6572 cut-off events. For 3285/3759 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 75229 event pairs, 149 based on Foata normal form. 177/6357 useless extension candidates. Maximal degree in co-relation 4603. Up to 662 conditions per place. [2024-10-24 15:39:00,386 INFO L140 encePairwiseOnDemand]: 135/143 looper letters, 16 selfloop transitions, 8 changer transitions 0/159 dead transitions. [2024-10-24 15:39:00,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 159 transitions, 581 flow [2024-10-24 15:39:00,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:39:00,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:39:00,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2024-10-24 15:39:00,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9254079254079254 [2024-10-24 15:39:00,388 INFO L175 Difference]: Start difference. First operand has 159 places, 169 transitions, 648 flow. Second operand 3 states and 397 transitions. [2024-10-24 15:39:00,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 159 transitions, 581 flow [2024-10-24 15:39:00,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 159 transitions, 567 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-24 15:39:00,401 INFO L231 Difference]: Finished difference. Result has 159 places, 152 transitions, 488 flow [2024-10-24 15:39:00,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=488, PETRI_PLACES=159, PETRI_TRANSITIONS=152} [2024-10-24 15:39:00,402 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 14 predicate places. [2024-10-24 15:39:00,402 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 152 transitions, 488 flow [2024-10-24 15:39:00,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:39:00,403 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:39:00,403 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:39:00,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-24 15:39:00,404 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:39:00,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:39:00,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1330462637, now seen corresponding path program 1 times [2024-10-24 15:39:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:39:00,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905879168] [2024-10-24 15:39:00,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:39:00,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:39:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:39:00,455 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-24 15:39:00,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:39:00,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905879168] [2024-10-24 15:39:00,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905879168] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:39:00,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:39:00,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:39:00,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645166054] [2024-10-24 15:39:00,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:39:00,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:39:00,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:39:00,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:39:00,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:39:00,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2024-10-24 15:39:00,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 152 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:39:00,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:39:00,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2024-10-24 15:39:00,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:39:01,520 INFO L124 PetriNetUnfolderBase]: 1114/7642 cut-off events. [2024-10-24 15:39:01,521 INFO L125 PetriNetUnfolderBase]: For 6514/6675 co-relation queries the response was YES. [2024-10-24 15:39:01,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15275 conditions, 7642 events. 1114/7642 cut-off events. For 6514/6675 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 90898 event pairs, 714 based on Foata normal form. 7/7132 useless extension candidates. Maximal degree in co-relation 12014. Up to 2065 conditions per place. [2024-10-24 15:39:01,546 INFO L140 encePairwiseOnDemand]: 138/143 looper letters, 33 selfloop transitions, 5 changer transitions 0/159 dead transitions. [2024-10-24 15:39:01,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 159 transitions, 602 flow [2024-10-24 15:39:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:39:01,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:39:01,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2024-10-24 15:39:01,547 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8811188811188811 [2024-10-24 15:39:01,548 INFO L175 Difference]: Start difference. First operand has 159 places, 152 transitions, 488 flow. Second operand 3 states and 378 transitions. [2024-10-24 15:39:01,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 159 transitions, 602 flow [2024-10-24 15:39:01,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 159 transitions, 594 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:39:01,556 INFO L231 Difference]: Finished difference. Result has 162 places, 155 transitions, 520 flow [2024-10-24 15:39:01,556 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=520, PETRI_PLACES=162, PETRI_TRANSITIONS=155} [2024-10-24 15:39:01,556 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 17 predicate places. [2024-10-24 15:39:01,557 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 155 transitions, 520 flow [2024-10-24 15:39:01,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:39:01,557 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:39:01,557 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:39:01,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-24 15:39:01,558 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:39:01,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:39:01,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1780606827, now seen corresponding path program 1 times [2024-10-24 15:39:01,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:39:01,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676434002] [2024-10-24 15:39:01,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:39:01,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:39:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:39:01,604 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-24 15:39:01,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:39:01,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676434002] [2024-10-24 15:39:01,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676434002] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:39:01,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:39:01,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:39:01,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521647397] [2024-10-24 15:39:01,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:39:01,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:39:01,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:39:01,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:39:01,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:39:01,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 143 [2024-10-24 15:39:01,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 155 transitions, 520 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:39:01,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:39:01,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 143 [2024-10-24 15:39:01,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:39:02,511 INFO L124 PetriNetUnfolderBase]: 1121/7928 cut-off events. [2024-10-24 15:39:02,511 INFO L125 PetriNetUnfolderBase]: For 8662/8814 co-relation queries the response was YES. [2024-10-24 15:39:02,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16348 conditions, 7928 events. 1121/7928 cut-off events. For 8662/8814 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 95369 event pairs, 707 based on Foata normal form. 4/7482 useless extension candidates. Maximal degree in co-relation 13094. Up to 2095 conditions per place. [2024-10-24 15:39:02,548 INFO L140 encePairwiseOnDemand]: 138/143 looper letters, 33 selfloop transitions, 5 changer transitions 0/161 dead transitions. [2024-10-24 15:39:02,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 161 transitions, 625 flow [2024-10-24 15:39:02,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:39:02,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:39:02,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2024-10-24 15:39:02,549 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2024-10-24 15:39:02,550 INFO L175 Difference]: Start difference. First operand has 162 places, 155 transitions, 520 flow. Second operand 3 states and 377 transitions. [2024-10-24 15:39:02,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 161 transitions, 625 flow [2024-10-24 15:39:02,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 161 transitions, 611 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-24 15:39:02,559 INFO L231 Difference]: Finished difference. Result has 164 places, 158 transitions, 548 flow [2024-10-24 15:39:02,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=548, PETRI_PLACES=164, PETRI_TRANSITIONS=158} [2024-10-24 15:39:02,559 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 19 predicate places. [2024-10-24 15:39:02,560 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 158 transitions, 548 flow [2024-10-24 15:39:02,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:39:02,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:39:02,560 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:39:02,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-24 15:39:02,560 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-10-24 15:39:02,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:39:02,561 INFO L85 PathProgramCache]: Analyzing trace with hash 2042999134, now seen corresponding path program 1 times [2024-10-24 15:39:02,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:39:02,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606525237] [2024-10-24 15:39:02,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:39:02,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:39:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:39:02,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:39:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:39:02,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:39:02,604 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:39:02,604 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-10-24 15:39:02,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-10-24 15:39:02,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-10-24 15:39:02,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-10-24 15:39:02,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-10-24 15:39:02,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-10-24 15:39:02,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-10-24 15:39:02,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-10-24 15:39:02,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-10-24 15:39:02,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-24 15:39:02,606 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:39:02,706 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2024-10-24 15:39:02,706 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:39:02,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:39:02 BasicIcfg [2024-10-24 15:39:02,713 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:39:02,714 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:39:02,714 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:39:02,714 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:39:02,715 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:38:12" (3/4) ... [2024-10-24 15:39:02,717 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 15:39:02,718 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:39:02,718 INFO L158 Benchmark]: Toolchain (without parser) took 51766.50ms. Allocated memory was 176.2MB in the beginning and 14.4GB in the end (delta: 14.3GB). Free memory was 145.1MB in the beginning and 11.3GB in the end (delta: -11.2GB). Peak memory consumption was 3.1GB. Max. memory is 16.1GB. [2024-10-24 15:39:02,718 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:39:02,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.83ms. Allocated memory is still 176.2MB. Free memory was 145.1MB in the beginning and 113.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-24 15:39:02,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.64ms. Allocated memory is still 176.2MB. Free memory was 113.7MB in the beginning and 111.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:39:02,720 INFO L158 Benchmark]: Boogie Preprocessor took 34.43ms. Allocated memory is still 176.2MB. Free memory was 111.5MB in the beginning and 109.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:39:02,720 INFO L158 Benchmark]: RCFGBuilder took 501.57ms. Allocated memory is still 176.2MB. Free memory was 109.5MB in the beginning and 132.2MB in the end (delta: -22.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 15:39:02,720 INFO L158 Benchmark]: TraceAbstraction took 50512.21ms. Allocated memory was 176.2MB in the beginning and 14.4GB in the end (delta: 14.3GB). Free memory was 131.2MB in the beginning and 11.3GB in the end (delta: -11.2GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2024-10-24 15:39:02,721 INFO L158 Benchmark]: Witness Printer took 3.72ms. Allocated memory is still 14.4GB. Free memory was 11.3GB in the beginning and 11.3GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:39:02,722 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 138.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.83ms. Allocated memory is still 176.2MB. Free memory was 145.1MB in the beginning and 113.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.64ms. Allocated memory is still 176.2MB. Free memory was 113.7MB in the beginning and 111.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.43ms. Allocated memory is still 176.2MB. Free memory was 111.5MB in the beginning and 109.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 501.57ms. Allocated memory is still 176.2MB. Free memory was 109.5MB in the beginning and 132.2MB in the end (delta: -22.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 50512.21ms. Allocated memory was 176.2MB in the beginning and 14.4GB in the end (delta: 14.3GB). Free memory was 131.2MB in the beginning and 11.3GB in the end (delta: -11.2GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. * Witness Printer took 3.72ms. Allocated memory is still 14.4GB. Free memory was 11.3GB in the beginning and 11.3GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1023]: Data race detected Data race detected The following path leads to a data race: [L1019] 0 int data = 0; VAL [data=0] [L1020] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}] [L1028] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, data_mutex={1:0}, threads_total=2] [L1029] CALL 0 assume_abort_if_not(threads_total >= 0) [L1016] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data=0, data_mutex={1:0}] [L1029] RET 0 assume_abort_if_not(threads_total >= 0) [L1030] 0 pthread_t *tids = malloc(threads_total * sizeof(pthread_t)); VAL [data=0, data_mutex={1:0}, threads_total=2, tids={-2:0}] [L1031] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1031] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1032] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1032] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1031] 0 i++ VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=2, tids={-2:0}] [L1031] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=2, tids={-2:0}] [L1032] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=2, tids={-2:0}] [L1032] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=2, tids={-2:0}] [L1031] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=2, tids={-2:0}] [L1031] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=2, tids={-2:0}] [L1034] 0 int i = 0; VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1034] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1035] EXPR 0 tids[i] VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1035] 0 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1023] 1 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1025] 1 return ((void *)0); VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1035] FCALL, JOIN 1 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=2, tids={-2:0}] [L1023] 2 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L1034] 0 i += 2 VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=2, tids={-2:0}] [L1034] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=2, tids={-2:0}] [L1038] 0 return data; VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_total=2, tids={-2:0}] [L1023] 2 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] Now there is a data race on ~data~0 between C: return data; [1038] and C: data = __VERIFIER_nondet_int() [1023] - UnprovableResult [Line: 1038]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 103 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 233 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 159 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 371 IncrementalHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 5 mSDtfsCounter, 371 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 120 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 511 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 369 mSDsluCounter, 156 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 121 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 804 IncrementalHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 35 mSDtfsCounter, 804 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 122 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=369occurred in iteration=7, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 457 NumberOfCodeBlocks, 457 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 436 ConstructedInterpolants, 0 QuantifiedInterpolants, 884 SizeOfPredicates, 4 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 12/15 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 137 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.5s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 620 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 428 mSDsluCounter, 236 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 194 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1138 IncrementalHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 42 mSDtfsCounter, 1138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 125 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=517occurred in iteration=7, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 625 NumberOfCodeBlocks, 625 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 585 ConstructedInterpolants, 0 QuantifiedInterpolants, 1061 SizeOfPredicates, 4 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 62/65 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 154 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 36.0s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 34.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 768 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 522 mSDsluCounter, 173 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 116 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1252 IncrementalHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 57 mSDtfsCounter, 1252 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 155 GetRequests, 126 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=648occurred in iteration=7, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 735 NumberOfCodeBlocks, 735 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 681 ConstructedInterpolants, 0 QuantifiedInterpolants, 1159 SizeOfPredicates, 4 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 146/149 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-24 15:39:02,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE