./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -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 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:38:37,192 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:38:37,246 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:38:37,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:38:37,252 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:38:37,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:38:37,272 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:38:37,274 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:38:37,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:38:37,275 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:38:37,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:38:37,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:38:37,276 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:38:37,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:38:37,276 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:38:37,276 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:38:37,277 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:38:37,277 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:38:37,277 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:38:37,277 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:38:37,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:38:37,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:38:37,282 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:38:37,283 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:38:37,283 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:38:37,283 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:38:37,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:38:37,284 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:38:37,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:38:37,284 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:38:37,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:38:37,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:38:37,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:38:37,285 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:38:37,285 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:38:37,285 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:38:37,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:38:37,285 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:38:37,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:38:37,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:38:37,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:38:37,287 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2024-11-12 12:38:37,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:38:37,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:38:37,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:38:37,523 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:38:37,523 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:38:37,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-12 12:38:38,742 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:38:38,889 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:38:38,891 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-12 12:38:38,898 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16db4e41c/13900d875a324b22a80557545e4ace34/FLAG492a42f33 [2024-11-12 12:38:39,296 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16db4e41c/13900d875a324b22a80557545e4ace34 [2024-11-12 12:38:39,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:38:39,299 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:38:39,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:38:39,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:38:39,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:38:39,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f8e8afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39, skipping insertion in model container [2024-11-12 12:38:39,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,324 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:38:39,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:38:39,502 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:38:39,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:38:39,546 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:38:39,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39 WrapperNode [2024-11-12 12:38:39,547 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:38:39,548 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:38:39,548 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:38:39,548 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:38:39,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,584 INFO L138 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 172 [2024-11-12 12:38:39,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:38:39,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:38:39,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:38:39,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:38:39,598 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:38:39,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:38:39,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:38:39,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:38:39,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39" (1/1) ... [2024-11-12 12:38:39,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:38:39,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:38:39,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 12:38:39,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 12:38:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:38:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-12 12:38:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-12 12:38:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-12 12:38:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-12 12:38:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-12 12:38:39,687 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-12 12:38:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:38:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:38:39,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:38:39,688 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:38:39,795 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:38:39,797 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:38:40,043 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:38:40,043 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:38:40,065 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:38:40,065 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 12:38:40,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:38:40 BoogieIcfgContainer [2024-11-12 12:38:40,065 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:38:40,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:38:40,068 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:38:40,070 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:38:40,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:38:39" (1/3) ... [2024-11-12 12:38:40,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eef79d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:38:40, skipping insertion in model container [2024-11-12 12:38:40,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:38:39" (2/3) ... [2024-11-12 12:38:40,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eef79d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:38:40, skipping insertion in model container [2024-11-12 12:38:40,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:38:40" (3/3) ... [2024-11-12 12:38:40,072 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-11-12 12:38:40,085 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:38:40,085 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-12 12:38:40,085 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:38:40,150 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-12 12:38:40,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 189 transitions, 399 flow [2024-11-12 12:38:40,253 INFO L124 PetriNetUnfolderBase]: 7/186 cut-off events. [2024-11-12 12:38:40,253 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-12 12:38:40,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 186 events. 7/186 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 210 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 141. Up to 2 conditions per place. [2024-11-12 12:38:40,264 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 189 transitions, 399 flow [2024-11-12 12:38:40,268 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 173 places, 169 transitions, 353 flow [2024-11-12 12:38:40,280 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:38:40,286 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;@7b100bed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:38:40,287 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-12 12:38:40,291 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:38:40,292 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-11-12 12:38:40,292 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:38:40,293 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:40,293 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:40,294 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:40,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:40,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2121399970, now seen corresponding path program 1 times [2024-11-12 12:38:40,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:40,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27210017] [2024-11-12 12:38:40,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:40,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:38:40,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:38:40,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:38:40,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27210017] [2024-11-12 12:38:40,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27210017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:38:40,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:38:40,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:38:40,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040579880] [2024-11-12 12:38:40,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:38:40,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:38:40,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:38:40,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:38:40,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:38:40,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 189 [2024-11-12 12:38:40,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 169 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:40,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:38:40,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 189 [2024-11-12 12:38:40,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:38:40,683 INFO L124 PetriNetUnfolderBase]: 112/854 cut-off events. [2024-11-12 12:38:40,683 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-12 12:38:40,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1087 conditions, 854 events. 112/854 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5171 event pairs, 92 based on Foata normal form. 43/769 useless extension candidates. Maximal degree in co-relation 937. Up to 173 conditions per place. [2024-11-12 12:38:40,693 INFO L140 encePairwiseOnDemand]: 182/189 looper letters, 16 selfloop transitions, 2 changer transitions 1/164 dead transitions. [2024-11-12 12:38:40,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 164 transitions, 379 flow [2024-11-12 12:38:40,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:38:40,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:38:40,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2024-11-12 12:38:40,704 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8977072310405644 [2024-11-12 12:38:40,706 INFO L175 Difference]: Start difference. First operand has 173 places, 169 transitions, 353 flow. Second operand 3 states and 509 transitions. [2024-11-12 12:38:40,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 164 transitions, 379 flow [2024-11-12 12:38:40,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 164 transitions, 370 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 12:38:40,739 INFO L231 Difference]: Finished difference. Result has 169 places, 163 transitions, 336 flow [2024-11-12 12:38:40,745 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=169, PETRI_TRANSITIONS=163} [2024-11-12 12:38:40,754 INFO L279 CegarLoopForPetriNet]: 173 programPoint places, -4 predicate places. [2024-11-12 12:38:40,754 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 163 transitions, 336 flow [2024-11-12 12:38:40,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:40,755 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:40,755 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:40,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:38:40,756 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:40,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:40,758 INFO L85 PathProgramCache]: Analyzing trace with hash 2010632472, now seen corresponding path program 1 times [2024-11-12 12:38:40,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:40,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266603207] [2024-11-12 12:38:40,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:40,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:38:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:38:40,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:38:40,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266603207] [2024-11-12 12:38:40,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266603207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:38:40,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:38:40,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:38:40,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066493670] [2024-11-12 12:38:40,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:38:40,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:38:40,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:38:40,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:38:40,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:38:40,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 189 [2024-11-12 12:38:40,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 163 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:40,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:38:40,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 189 [2024-11-12 12:38:40,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:38:40,997 INFO L124 PetriNetUnfolderBase]: 114/758 cut-off events. [2024-11-12 12:38:40,998 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-12 12:38:41,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 758 events. 114/758 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4364 event pairs, 100 based on Foata normal form. 0/647 useless extension candidates. Maximal degree in co-relation 951. Up to 185 conditions per place. [2024-11-12 12:38:41,004 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 16 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2024-11-12 12:38:41,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 162 transitions, 370 flow [2024-11-12 12:38:41,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:38:41,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:38:41,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2024-11-12 12:38:41,009 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.890652557319224 [2024-11-12 12:38:41,009 INFO L175 Difference]: Start difference. First operand has 169 places, 163 transitions, 336 flow. Second operand 3 states and 505 transitions. [2024-11-12 12:38:41,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 162 transitions, 370 flow [2024-11-12 12:38:41,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 162 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:38:41,014 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 334 flow [2024-11-12 12:38:41,014 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2024-11-12 12:38:41,015 INFO L279 CegarLoopForPetriNet]: 173 programPoint places, -6 predicate places. [2024-11-12 12:38:41,015 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 334 flow [2024-11-12 12:38:41,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:41,016 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:41,016 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:41,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:38:41,017 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:41,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:41,018 INFO L85 PathProgramCache]: Analyzing trace with hash 111881899, now seen corresponding path program 1 times [2024-11-12 12:38:41,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:41,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893600841] [2024-11-12 12:38:41,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:41,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:38:41,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:38:41,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:38:41,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893600841] [2024-11-12 12:38:41,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893600841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:38:41,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:38:41,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:38:41,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862914020] [2024-11-12 12:38:41,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:38:41,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:38:41,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:38:41,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:38:41,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:38:41,104 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 189 [2024-11-12 12:38:41,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:41,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:38:41,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 189 [2024-11-12 12:38:41,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:38:41,204 INFO L124 PetriNetUnfolderBase]: 114/953 cut-off events. [2024-11-12 12:38:41,206 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-12 12:38:41,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1154 conditions, 953 events. 114/953 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5910 event pairs, 92 based on Foata normal form. 0/816 useless extension candidates. Maximal degree in co-relation 1114. Up to 173 conditions per place. [2024-11-12 12:38:41,212 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 16 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2024-11-12 12:38:41,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 161 transitions, 368 flow [2024-11-12 12:38:41,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:38:41,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:38:41,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2024-11-12 12:38:41,215 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.890652557319224 [2024-11-12 12:38:41,215 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 334 flow. Second operand 3 states and 505 transitions. [2024-11-12 12:38:41,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 161 transitions, 368 flow [2024-11-12 12:38:41,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 161 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:38:41,220 INFO L231 Difference]: Finished difference. Result has 166 places, 161 transitions, 332 flow [2024-11-12 12:38:41,221 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=166, PETRI_TRANSITIONS=161} [2024-11-12 12:38:41,221 INFO L279 CegarLoopForPetriNet]: 173 programPoint places, -7 predicate places. [2024-11-12 12:38:41,221 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 161 transitions, 332 flow [2024-11-12 12:38:41,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:41,222 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:41,222 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:41,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:38:41,223 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:41,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:41,224 INFO L85 PathProgramCache]: Analyzing trace with hash 981527663, now seen corresponding path program 1 times [2024-11-12 12:38:41,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:41,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105838291] [2024-11-12 12:38:41,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:41,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:38:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:38:41,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:38:41,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105838291] [2024-11-12 12:38:41,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105838291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:38:41,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:38:41,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:38:41,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204949727] [2024-11-12 12:38:41,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:38:41,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:38:41,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:38:41,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:38:41,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:38:41,345 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 189 [2024-11-12 12:38:41,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 161 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:41,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:38:41,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 189 [2024-11-12 12:38:41,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:38:41,453 INFO L124 PetriNetUnfolderBase]: 174/1118 cut-off events. [2024-11-12 12:38:41,454 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-12 12:38:41,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1443 conditions, 1118 events. 174/1118 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 7779 event pairs, 96 based on Foata normal form. 0/961 useless extension candidates. Maximal degree in co-relation 1395. Up to 202 conditions per place. [2024-11-12 12:38:41,461 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 21 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2024-11-12 12:38:41,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 166 transitions, 391 flow [2024-11-12 12:38:41,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:38:41,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:38:41,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2024-11-12 12:38:41,462 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2024-11-12 12:38:41,462 INFO L175 Difference]: Start difference. First operand has 166 places, 161 transitions, 332 flow. Second operand 3 states and 516 transitions. [2024-11-12 12:38:41,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 166 transitions, 391 flow [2024-11-12 12:38:41,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 166 transitions, 387 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:38:41,465 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 330 flow [2024-11-12 12:38:41,465 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2024-11-12 12:38:41,467 INFO L279 CegarLoopForPetriNet]: 173 programPoint places, -8 predicate places. [2024-11-12 12:38:41,467 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 330 flow [2024-11-12 12:38:41,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:41,468 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:41,468 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:41,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:38:41,469 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:41,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:41,470 INFO L85 PathProgramCache]: Analyzing trace with hash -14978574, now seen corresponding path program 1 times [2024-11-12 12:38:41,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:41,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664110834] [2024-11-12 12:38:41,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:41,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:38:41,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:38:41,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:38:41,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664110834] [2024-11-12 12:38:41,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664110834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:38:41,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:38:41,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:38:41,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649596281] [2024-11-12 12:38:41,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:38:41,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:38:41,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:38:41,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:38:41,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:38:41,533 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 189 [2024-11-12 12:38:41,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:41,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:38:41,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 189 [2024-11-12 12:38:41,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:38:41,603 INFO L124 PetriNetUnfolderBase]: 121/726 cut-off events. [2024-11-12 12:38:41,603 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-12 12:38:41,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 726 events. 121/726 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4306 event pairs, 42 based on Foata normal form. 0/644 useless extension candidates. Maximal degree in co-relation 656. Up to 119 conditions per place. [2024-11-12 12:38:41,607 INFO L140 encePairwiseOnDemand]: 187/189 looper letters, 20 selfloop transitions, 1 changer transitions 0/165 dead transitions. [2024-11-12 12:38:41,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 165 transitions, 385 flow [2024-11-12 12:38:41,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:38:41,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:38:41,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2024-11-12 12:38:41,609 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9171075837742504 [2024-11-12 12:38:41,609 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 330 flow. Second operand 3 states and 520 transitions. [2024-11-12 12:38:41,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 165 transitions, 385 flow [2024-11-12 12:38:41,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 165 transitions, 381 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:38:41,612 INFO L231 Difference]: Finished difference. Result has 164 places, 159 transitions, 326 flow [2024-11-12 12:38:41,612 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=164, PETRI_TRANSITIONS=159} [2024-11-12 12:38:41,614 INFO L279 CegarLoopForPetriNet]: 173 programPoint places, -9 predicate places. [2024-11-12 12:38:41,614 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 159 transitions, 326 flow [2024-11-12 12:38:41,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:41,615 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:41,615 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:41,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:38:41,615 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:41,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:41,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1757999451, now seen corresponding path program 1 times [2024-11-12 12:38:41,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:41,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691166900] [2024-11-12 12:38:41,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:41,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:38:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:38:41,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:38:41,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691166900] [2024-11-12 12:38:41,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691166900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:38:41,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:38:41,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:38:41,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478609938] [2024-11-12 12:38:41,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:38:41,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:38:41,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:38:41,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:38:41,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:38:41,688 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 189 [2024-11-12 12:38:41,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 159 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:41,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:38:41,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 189 [2024-11-12 12:38:41,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:38:41,762 INFO L124 PetriNetUnfolderBase]: 182/790 cut-off events. [2024-11-12 12:38:41,762 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-12 12:38:41,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1145 conditions, 790 events. 182/790 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4630 event pairs, 122 based on Foata normal form. 0/695 useless extension candidates. Maximal degree in co-relation 745. Up to 220 conditions per place. [2024-11-12 12:38:41,767 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 21 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2024-11-12 12:38:41,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 164 transitions, 385 flow [2024-11-12 12:38:41,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:38:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:38:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2024-11-12 12:38:41,768 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2024-11-12 12:38:41,768 INFO L175 Difference]: Start difference. First operand has 164 places, 159 transitions, 326 flow. Second operand 3 states and 516 transitions. [2024-11-12 12:38:41,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 164 transitions, 385 flow [2024-11-12 12:38:41,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 164 transitions, 384 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:38:41,771 INFO L231 Difference]: Finished difference. Result has 164 places, 158 transitions, 327 flow [2024-11-12 12:38:41,771 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=164, PETRI_TRANSITIONS=158} [2024-11-12 12:38:41,772 INFO L279 CegarLoopForPetriNet]: 173 programPoint places, -9 predicate places. [2024-11-12 12:38:41,772 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 158 transitions, 327 flow [2024-11-12 12:38:41,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:41,772 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:41,772 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:41,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:38:41,773 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:41,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:41,773 INFO L85 PathProgramCache]: Analyzing trace with hash 248207198, now seen corresponding path program 1 times [2024-11-12 12:38:41,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:41,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226616356] [2024-11-12 12:38:41,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:41,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:38:41,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:38:41,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:38:41,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226616356] [2024-11-12 12:38:41,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226616356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:38:41,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:38:41,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:38:41,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589482906] [2024-11-12 12:38:41,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:38:41,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:38:41,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:38:41,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:38:41,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:38:41,841 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 189 [2024-11-12 12:38:41,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 158 transitions, 327 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:41,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:38:41,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 189 [2024-11-12 12:38:41,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:38:41,907 INFO L124 PetriNetUnfolderBase]: 138/723 cut-off events. [2024-11-12 12:38:41,907 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-12 12:38:41,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 723 events. 138/723 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4039 event pairs, 54 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 665. Up to 116 conditions per place. [2024-11-12 12:38:41,911 INFO L140 encePairwiseOnDemand]: 187/189 looper letters, 20 selfloop transitions, 1 changer transitions 0/163 dead transitions. [2024-11-12 12:38:41,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 163 transitions, 382 flow [2024-11-12 12:38:41,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:38:41,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:38:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2024-11-12 12:38:41,912 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9171075837742504 [2024-11-12 12:38:41,912 INFO L175 Difference]: Start difference. First operand has 164 places, 158 transitions, 327 flow. Second operand 3 states and 520 transitions. [2024-11-12 12:38:41,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 163 transitions, 382 flow [2024-11-12 12:38:41,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 163 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:38:41,915 INFO L231 Difference]: Finished difference. Result has 163 places, 157 transitions, 323 flow [2024-11-12 12:38:41,916 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=323, PETRI_PLACES=163, PETRI_TRANSITIONS=157} [2024-11-12 12:38:41,916 INFO L279 CegarLoopForPetriNet]: 173 programPoint places, -10 predicate places. [2024-11-12 12:38:41,917 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 157 transitions, 323 flow [2024-11-12 12:38:41,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:41,917 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:41,917 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:41,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:38:41,918 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:41,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:41,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1132937307, now seen corresponding path program 1 times [2024-11-12 12:38:41,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:41,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099740402] [2024-11-12 12:38:41,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:41,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:38:41,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:38:41,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:38:41,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099740402] [2024-11-12 12:38:41,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099740402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:38:41,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:38:41,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:38:41,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066438388] [2024-11-12 12:38:41,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:38:41,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:38:41,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:38:41,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:38:41,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:38:41,959 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 189 [2024-11-12 12:38:41,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 157 transitions, 323 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:41,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:38:41,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 189 [2024-11-12 12:38:41,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:38:42,045 INFO L124 PetriNetUnfolderBase]: 172/966 cut-off events. [2024-11-12 12:38:42,046 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-12 12:38:42,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 966 events. 172/966 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5866 event pairs, 110 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 1011. Up to 202 conditions per place. [2024-11-12 12:38:42,050 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 21 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2024-11-12 12:38:42,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 162 transitions, 381 flow [2024-11-12 12:38:42,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:38:42,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:38:42,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2024-11-12 12:38:42,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91005291005291 [2024-11-12 12:38:42,052 INFO L175 Difference]: Start difference. First operand has 163 places, 157 transitions, 323 flow. Second operand 3 states and 516 transitions. [2024-11-12 12:38:42,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 162 transitions, 381 flow [2024-11-12 12:38:42,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 162 transitions, 380 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:38:42,054 INFO L231 Difference]: Finished difference. Result has 163 places, 156 transitions, 324 flow [2024-11-12 12:38:42,054 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=163, PETRI_TRANSITIONS=156} [2024-11-12 12:38:42,055 INFO L279 CegarLoopForPetriNet]: 173 programPoint places, -10 predicate places. [2024-11-12 12:38:42,055 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 156 transitions, 324 flow [2024-11-12 12:38:42,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:42,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:38:42,055 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:42,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:38:42,055 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-11-12 12:38:42,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:38:42,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1277766370, now seen corresponding path program 1 times [2024-11-12 12:38:42,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:38:42,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315566476] [2024-11-12 12:38:42,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:38:42,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:38:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:38:42,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:38:42,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:38:42,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315566476] [2024-11-12 12:38:42,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315566476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:38:42,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:38:42,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:38:42,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717516212] [2024-11-12 12:38:42,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:38:42,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:38:42,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:38:42,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:38:42,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:38:42,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 189 [2024-11-12 12:38:42,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 156 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:42,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:38:42,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 189 [2024-11-12 12:38:42,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:38:42,162 INFO L124 PetriNetUnfolderBase]: 136/869 cut-off events. [2024-11-12 12:38:42,163 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-12 12:38:42,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 869 events. 136/869 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5024 event pairs, 56 based on Foata normal form. 0/782 useless extension candidates. Maximal degree in co-relation 866. Up to 109 conditions per place. [2024-11-12 12:38:42,165 INFO L140 encePairwiseOnDemand]: 187/189 looper letters, 0 selfloop transitions, 0 changer transitions 161/161 dead transitions. [2024-11-12 12:38:42,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 161 transitions, 378 flow [2024-11-12 12:38:42,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:38:42,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:38:42,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2024-11-12 12:38:42,167 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9171075837742504 [2024-11-12 12:38:42,167 INFO L175 Difference]: Start difference. First operand has 163 places, 156 transitions, 324 flow. Second operand 3 states and 520 transitions. [2024-11-12 12:38:42,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 161 transitions, 378 flow [2024-11-12 12:38:42,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 161 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:38:42,169 INFO L231 Difference]: Finished difference. Result has 162 places, 0 transitions, 0 flow [2024-11-12 12:38:42,169 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=162, PETRI_TRANSITIONS=0} [2024-11-12 12:38:42,169 INFO L279 CegarLoopForPetriNet]: 173 programPoint places, -11 predicate places. [2024-11-12 12:38:42,169 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 0 transitions, 0 flow [2024-11-12 12:38:42,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:38:42,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 18 remaining) [2024-11-12 12:38:42,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-12 12:38:42,172 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-12 12:38:42,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-12 12:38:42,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-12 12:38:42,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-12 12:38:42,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-12 12:38:42,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-12 12:38:42,173 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-12 12:38:42,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-12 12:38:42,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2024-11-12 12:38:42,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2024-11-12 12:38:42,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-12 12:38:42,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-12 12:38:42,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-12 12:38:42,174 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-12 12:38:42,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-12 12:38:42,175 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-12 12:38:42,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:38:42,175 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:38:42,179 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 12:38:42,179 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 12:38:42,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:38:42 BasicIcfg [2024-11-12 12:38:42,183 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 12:38:42,183 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 12:38:42,183 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 12:38:42,183 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 12:38:42,184 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:38:40" (3/4) ... [2024-11-12 12:38:42,185 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 12:38:42,191 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-12 12:38:42,191 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-12 12:38:42,191 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-12 12:38:42,194 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-12 12:38:42,194 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-12 12:38:42,194 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-12 12:38:42,194 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 12:38:42,263 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 12:38:42,263 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 12:38:42,263 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 12:38:42,264 INFO L158 Benchmark]: Toolchain (without parser) took 2965.33ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 78.3MB in the beginning and 80.6MB in the end (delta: -2.3MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2024-11-12 12:38:42,264 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 151.0MB. Free memory was 101.4MB in the beginning and 101.3MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 12:38:42,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.50ms. Allocated memory is still 151.0MB. Free memory was 78.1MB in the beginning and 119.3MB in the end (delta: -41.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-11-12 12:38:42,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.81ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 119.2MB in the beginning and 176.2MB in the end (delta: -57.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2024-11-12 12:38:42,265 INFO L158 Benchmark]: Boogie Preprocessor took 22.64ms. Allocated memory is still 205.5MB. Free memory was 176.2MB in the beginning and 175.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 12:38:42,265 INFO L158 Benchmark]: RCFGBuilder took 456.31ms. Allocated memory is still 205.5MB. Free memory was 175.2MB in the beginning and 156.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-12 12:38:42,265 INFO L158 Benchmark]: TraceAbstraction took 2115.43ms. Allocated memory is still 205.5MB. Free memory was 155.3MB in the beginning and 85.9MB in the end (delta: 69.4MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2024-11-12 12:38:42,265 INFO L158 Benchmark]: Witness Printer took 80.33ms. Allocated memory is still 205.5MB. Free memory was 85.9MB in the beginning and 80.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 12:38:42,266 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 151.0MB. Free memory was 101.4MB in the beginning and 101.3MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.50ms. Allocated memory is still 151.0MB. Free memory was 78.1MB in the beginning and 119.3MB in the end (delta: -41.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.81ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 119.2MB in the beginning and 176.2MB in the end (delta: -57.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.64ms. Allocated memory is still 205.5MB. Free memory was 176.2MB in the beginning and 175.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.31ms. Allocated memory is still 205.5MB. Free memory was 175.2MB in the beginning and 156.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2115.43ms. Allocated memory is still 205.5MB. Free memory was 155.3MB in the beginning and 85.9MB in the end (delta: 69.4MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. * Witness Printer took 80.33ms. Allocated memory is still 205.5MB. Free memory was 85.9MB in the beginning and 80.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 264 locations, 18 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: 2.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 371 IncrementalHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 44 mSDtfsCounter, 371 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=353occurred in iteration=0, InterpolantAutomatonStates: 27, 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, 0.4s InterpolantComputationTime, 588 NumberOfCodeBlocks, 588 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 579 ConstructedInterpolants, 0 QuantifiedInterpolants, 597 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-12 12:38:42,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE