./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b78611c293a7a651605e3dc9bdfe409b46ee0a572a0a5030b4011d70f271b607 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 18:03:14,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 18:03:14,536 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 18:03:14,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 18:03:14,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 18:03:14,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 18:03:14,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 18:03:14,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 18:03:14,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 18:03:14,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 18:03:14,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 18:03:14,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 18:03:14,582 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 18:03:14,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 18:03:14,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 18:03:14,583 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 18:03:14,583 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 18:03:14,588 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 18:03:14,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 18:03:14,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 18:03:14,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 18:03:14,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 18:03:14,592 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 18:03:14,592 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 18:03:14,592 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 18:03:14,592 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 18:03:14,592 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 18:03:14,592 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 18:03:14,593 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 18:03:14,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 18:03:14,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 18:03:14,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:03:14,593 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 18:03:14,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 18:03:14,593 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 18:03:14,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 18:03:14,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 18:03:14,594 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 18:03:14,594 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 18:03:14,594 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 18:03:14,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 18:03:14,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78611c293a7a651605e3dc9bdfe409b46ee0a572a0a5030b4011d70f271b607 [2024-11-22 18:03:14,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 18:03:15,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 18:03:15,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 18:03:15,039 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 18:03:15,039 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 18:03:15,040 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i [2024-11-22 18:03:17,189 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 18:03:17,555 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 18:03:17,558 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/thread-join-array-const-race.i [2024-11-22 18:03:17,580 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0fdb07fa/ff5b34edde5749178bf7852b33403b09/FLAG3d260aa20 [2024-11-22 18:03:17,600 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0fdb07fa/ff5b34edde5749178bf7852b33403b09 [2024-11-22 18:03:17,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 18:03:17,603 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 18:03:17,608 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 18:03:17,608 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 18:03:17,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 18:03:17,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:03:17" (1/1) ... [2024-11-22 18:03:17,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45330398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:17, skipping insertion in model container [2024-11-22 18:03:17,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:03:17" (1/1) ... [2024-11-22 18:03:17,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 18:03:18,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:03:18,179 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 18:03:18,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:03:18,313 INFO L204 MainTranslator]: Completed translation [2024-11-22 18:03:18,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18 WrapperNode [2024-11-22 18:03:18,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 18:03:18,314 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 18:03:18,315 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 18:03:18,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 18:03:18,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18" (1/1) ... [2024-11-22 18:03:18,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18" (1/1) ... [2024-11-22 18:03:18,379 INFO L138 Inliner]: procedures = 158, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2024-11-22 18:03:18,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 18:03:18,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 18:03:18,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 18:03:18,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 18:03:18,394 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18" (1/1) ... [2024-11-22 18:03:18,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18" (1/1) ... [2024-11-22 18:03:18,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18" (1/1) ... [2024-11-22 18:03:18,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18" (1/1) ... [2024-11-22 18:03:18,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18" (1/1) ... [2024-11-22 18:03:18,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18" (1/1) ... [2024-11-22 18:03:18,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18" (1/1) ... [2024-11-22 18:03:18,427 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18" (1/1) ... [2024-11-22 18:03:18,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 18:03:18,439 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 18:03:18,439 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 18:03:18,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 18:03:18,439 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18" (1/1) ... [2024-11-22 18:03:18,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:03:18,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:03:18,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 18:03:18,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 18:03:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 18:03:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 18:03:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 18:03:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 18:03:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 18:03:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 18:03:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 18:03:18,582 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-22 18:03:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-22 18:03:18,583 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 18:03:18,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 18:03:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 18:03:18,587 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 18:03:18,754 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 18:03:18,757 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 18:03:19,042 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 18:03:19,046 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 18:03:19,081 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 18:03:19,089 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 18:03:19,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:03:19 BoogieIcfgContainer [2024-11-22 18:03:19,090 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 18:03:19,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 18:03:19,092 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 18:03:19,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 18:03:19,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:03:17" (1/3) ... [2024-11-22 18:03:19,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc85a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:03:19, skipping insertion in model container [2024-11-22 18:03:19,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:03:18" (2/3) ... [2024-11-22 18:03:19,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc85a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:03:19, skipping insertion in model container [2024-11-22 18:03:19,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:03:19" (3/3) ... [2024-11-22 18:03:19,105 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-const-race.i [2024-11-22 18:03:19,138 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 18:03:19,138 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-22 18:03:19,138 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 18:03:19,241 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-22 18:03:19,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 79 transitions, 165 flow [2024-11-22 18:03:19,391 INFO L124 PetriNetUnfolderBase]: 5/114 cut-off events. [2024-11-22 18:03:19,393 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 18:03:19,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 114 events. 5/114 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 216 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2024-11-22 18:03:19,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 79 transitions, 165 flow [2024-11-22 18:03:19,409 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 79 transitions, 165 flow [2024-11-22 18:03:19,426 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:03:19,435 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;@34d41444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:03:19,438 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-22 18:03:19,459 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:03:19,463 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-22 18:03:19,463 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:03:19,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:19,464 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:19,464 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-22 18:03:19,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:19,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1339485524, now seen corresponding path program 1 times [2024-11-22 18:03:19,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:19,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559816352] [2024-11-22 18:03:19,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:19,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:20,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:20,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:20,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559816352] [2024-11-22 18:03:20,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559816352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:20,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:20,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:03:20,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692734133] [2024-11-22 18:03:20,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:20,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:03:20,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:20,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:03:20,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:03:20,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 79 [2024-11-22 18:03:20,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:20,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:20,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 79 [2024-11-22 18:03:20,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:20,281 INFO L124 PetriNetUnfolderBase]: 8/187 cut-off events. [2024-11-22 18:03:20,281 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-22 18:03:20,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 187 events. 8/187 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 576 event pairs, 0 based on Foata normal form. 5/172 useless extension candidates. Maximal degree in co-relation 155. Up to 17 conditions per place. [2024-11-22 18:03:20,287 INFO L140 encePairwiseOnDemand]: 72/79 looper letters, 10 selfloop transitions, 4 changer transitions 1/81 dead transitions. [2024-11-22 18:03:20,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 81 transitions, 199 flow [2024-11-22 18:03:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:03:20,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:03:20,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 283 transitions. [2024-11-22 18:03:20,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8955696202531646 [2024-11-22 18:03:20,312 INFO L175 Difference]: Start difference. First operand has 79 places, 79 transitions, 165 flow. Second operand 4 states and 283 transitions. [2024-11-22 18:03:20,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 81 transitions, 199 flow [2024-11-22 18:03:20,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 81 transitions, 199 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:03:20,319 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 173 flow [2024-11-22 18:03:20,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2024-11-22 18:03:20,327 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2024-11-22 18:03:20,328 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 173 flow [2024-11-22 18:03:20,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.25) internal successors, (269), 4 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:20,329 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:20,329 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:20,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 18:03:20,330 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-22 18:03:20,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:20,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1244862311, now seen corresponding path program 1 times [2024-11-22 18:03:20,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:20,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816157301] [2024-11-22 18:03:20,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:20,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:21,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:21,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:21,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816157301] [2024-11-22 18:03:21,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816157301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:21,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:21,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:03:21,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795431905] [2024-11-22 18:03:21,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:21,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:03:21,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:21,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:03:21,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:03:21,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 79 [2024-11-22 18:03:21,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:21,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:21,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 79 [2024-11-22 18:03:21,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:21,468 INFO L124 PetriNetUnfolderBase]: 30/231 cut-off events. [2024-11-22 18:03:21,474 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-22 18:03:21,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 231 events. 30/231 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 926 event pairs, 11 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 268. Up to 62 conditions per place. [2024-11-22 18:03:21,476 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 25 selfloop transitions, 5 changer transitions 0/84 dead transitions. [2024-11-22 18:03:21,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 84 transitions, 247 flow [2024-11-22 18:03:21,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:03:21,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:03:21,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 355 transitions. [2024-11-22 18:03:21,487 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7489451476793249 [2024-11-22 18:03:21,489 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 173 flow. Second operand 6 states and 355 transitions. [2024-11-22 18:03:21,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 84 transitions, 247 flow [2024-11-22 18:03:21,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 84 transitions, 239 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 18:03:21,496 INFO L231 Difference]: Finished difference. Result has 84 places, 76 transitions, 173 flow [2024-11-22 18:03:21,496 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=173, PETRI_PLACES=84, PETRI_TRANSITIONS=76} [2024-11-22 18:03:21,497 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 5 predicate places. [2024-11-22 18:03:21,498 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 76 transitions, 173 flow [2024-11-22 18:03:21,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:21,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:21,502 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:21,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 18:03:21,503 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-22 18:03:21,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:21,504 INFO L85 PathProgramCache]: Analyzing trace with hash -469446995, now seen corresponding path program 1 times [2024-11-22 18:03:21,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:21,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720729285] [2024-11-22 18:03:21,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:21,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:21,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:21,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720729285] [2024-11-22 18:03:21,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720729285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:21,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:21,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:03:21,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632568490] [2024-11-22 18:03:21,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:21,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:21,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:21,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:21,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:21,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 79 [2024-11-22 18:03:21,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 76 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:21,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:21,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 79 [2024-11-22 18:03:21,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:21,655 INFO L124 PetriNetUnfolderBase]: 6/143 cut-off events. [2024-11-22 18:03:21,661 INFO L125 PetriNetUnfolderBase]: For 4/10 co-relation queries the response was YES. [2024-11-22 18:03:21,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 143 events. 6/143 cut-off events. For 4/10 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 379 event pairs, 4 based on Foata normal form. 1/132 useless extension candidates. Maximal degree in co-relation 136. Up to 21 conditions per place. [2024-11-22 18:03:21,662 INFO L140 encePairwiseOnDemand]: 74/79 looper letters, 9 selfloop transitions, 4 changer transitions 0/79 dead transitions. [2024-11-22 18:03:21,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 79 transitions, 205 flow [2024-11-22 18:03:21,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:21,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:21,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2024-11-22 18:03:21,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9071729957805907 [2024-11-22 18:03:21,668 INFO L175 Difference]: Start difference. First operand has 84 places, 76 transitions, 173 flow. Second operand 3 states and 215 transitions. [2024-11-22 18:03:21,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 79 transitions, 205 flow [2024-11-22 18:03:21,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 195 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:03:21,670 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 193 flow [2024-11-22 18:03:21,670 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2024-11-22 18:03:21,671 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 4 predicate places. [2024-11-22 18:03:21,675 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 193 flow [2024-11-22 18:03:21,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:21,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:21,676 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:21,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 18:03:21,676 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-22 18:03:21,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:21,677 INFO L85 PathProgramCache]: Analyzing trace with hash 441889680, now seen corresponding path program 1 times [2024-11-22 18:03:21,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:21,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720637036] [2024-11-22 18:03:21,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:21,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:21,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:03:21,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:21,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720637036] [2024-11-22 18:03:21,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720637036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:21,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:21,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:03:21,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031003667] [2024-11-22 18:03:21,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:21,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:03:21,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:21,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:03:21,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:03:21,888 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 79 [2024-11-22 18:03:21,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:21,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:21,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 79 [2024-11-22 18:03:21,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:21,924 INFO L124 PetriNetUnfolderBase]: 2/108 cut-off events. [2024-11-22 18:03:21,924 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-22 18:03:21,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 108 events. 2/108 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 154 event pairs, 0 based on Foata normal form. 3/106 useless extension candidates. Maximal degree in co-relation 83. Up to 7 conditions per place. [2024-11-22 18:03:21,925 INFO L140 encePairwiseOnDemand]: 74/79 looper letters, 9 selfloop transitions, 3 changer transitions 7/77 dead transitions. [2024-11-22 18:03:21,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 77 transitions, 203 flow [2024-11-22 18:03:21,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:03:21,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:03:21,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2024-11-22 18:03:21,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.879746835443038 [2024-11-22 18:03:21,928 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 193 flow. Second operand 4 states and 278 transitions. [2024-11-22 18:03:21,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 77 transitions, 203 flow [2024-11-22 18:03:21,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 77 transitions, 191 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-22 18:03:21,933 INFO L231 Difference]: Finished difference. Result has 82 places, 68 transitions, 157 flow [2024-11-22 18:03:21,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=82, PETRI_TRANSITIONS=68} [2024-11-22 18:03:21,934 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, 3 predicate places. [2024-11-22 18:03:21,934 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 68 transitions, 157 flow [2024-11-22 18:03:21,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.5) internal successors, (270), 4 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:21,938 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:21,938 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:21,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 18:03:21,938 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-22 18:03:21,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:21,939 INFO L85 PathProgramCache]: Analyzing trace with hash 215499896, now seen corresponding path program 1 times [2024-11-22 18:03:21,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:21,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747852192] [2024-11-22 18:03:21,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:21,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:22,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:22,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747852192] [2024-11-22 18:03:22,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747852192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:03:22,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643289320] [2024-11-22 18:03:22,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:22,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:03:22,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:03:22,168 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:03:22,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 18:03:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:22,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 18:03:22,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:03:22,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:22,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:03:22,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:22,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643289320] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:03:22,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:03:22,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-22 18:03:22,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026913720] [2024-11-22 18:03:22,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:03:22,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 18:03:22,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:22,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 18:03:22,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-22 18:03:22,895 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 79 [2024-11-22 18:03:22,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 68 transitions, 157 flow. Second operand has 13 states, 13 states have (on average 64.92307692307692) internal successors, (844), 13 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:22,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:22,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 79 [2024-11-22 18:03:22,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:23,000 INFO L124 PetriNetUnfolderBase]: 8/97 cut-off events. [2024-11-22 18:03:23,000 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-22 18:03:23,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 97 events. 8/97 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 160 event pairs, 0 based on Foata normal form. 3/98 useless extension candidates. Maximal degree in co-relation 130. Up to 10 conditions per place. [2024-11-22 18:03:23,002 INFO L140 encePairwiseOnDemand]: 73/79 looper letters, 12 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2024-11-22 18:03:23,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 55 transitions, 152 flow [2024-11-22 18:03:23,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 18:03:23,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 18:03:23,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 459 transitions. [2024-11-22 18:03:23,010 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8300180831826401 [2024-11-22 18:03:23,010 INFO L175 Difference]: Start difference. First operand has 82 places, 68 transitions, 157 flow. Second operand 7 states and 459 transitions. [2024-11-22 18:03:23,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 55 transitions, 152 flow [2024-11-22 18:03:23,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 149 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:23,013 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 111 flow [2024-11-22 18:03:23,020 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=111, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-22 18:03:23,021 INFO L277 CegarLoopForPetriNet]: 79 programPoint places, -20 predicate places. [2024-11-22 18:03:23,021 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 111 flow [2024-11-22 18:03:23,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 64.92307692307692) internal successors, (844), 13 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:23,023 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:23,023 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:23,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 18:03:23,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:03:23,233 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-22 18:03:23,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:23,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1790622290, now seen corresponding path program 1 times [2024-11-22 18:03:23,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:23,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310697881] [2024-11-22 18:03:23,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:23,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:03:23,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:03:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:03:23,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:03:23,337 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:03:23,338 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2024-11-22 18:03:23,339 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-22 18:03:23,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 6 remaining) [2024-11-22 18:03:23,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-22 18:03:23,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-22 18:03:23,343 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-22 18:03:23,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 18:03:23,344 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-22 18:03:23,346 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:03:23,346 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-22 18:03:23,370 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 18:03:23,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 97 transitions, 210 flow [2024-11-22 18:03:23,398 INFO L124 PetriNetUnfolderBase]: 10/203 cut-off events. [2024-11-22 18:03:23,401 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-22 18:03:23,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 203 events. 10/203 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 463 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 116. Up to 8 conditions per place. [2024-11-22 18:03:23,402 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 97 transitions, 210 flow [2024-11-22 18:03:23,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 97 transitions, 210 flow [2024-11-22 18:03:23,403 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:03:23,404 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;@34d41444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:03:23,404 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-22 18:03:23,411 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:03:23,411 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-22 18:03:23,411 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:03:23,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:23,411 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:23,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-22 18:03:23,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:23,414 INFO L85 PathProgramCache]: Analyzing trace with hash -893886452, now seen corresponding path program 1 times [2024-11-22 18:03:23,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:23,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522237331] [2024-11-22 18:03:23,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:23,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:23,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:23,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:23,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522237331] [2024-11-22 18:03:23,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522237331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:23,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:23,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:03:23,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138463397] [2024-11-22 18:03:23,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:23,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:03:23,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:23,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:03:23,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:03:23,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2024-11-22 18:03:23,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 97 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:23,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:23,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2024-11-22 18:03:23,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:23,711 INFO L124 PetriNetUnfolderBase]: 72/621 cut-off events. [2024-11-22 18:03:23,713 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-22 18:03:23,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 621 events. 72/621 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3742 event pairs, 20 based on Foata normal form. 16/581 useless extension candidates. Maximal degree in co-relation 215. Up to 106 conditions per place. [2024-11-22 18:03:23,728 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 18 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2024-11-22 18:03:23,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 102 transitions, 264 flow [2024-11-22 18:03:23,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:03:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:03:23,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 346 transitions. [2024-11-22 18:03:23,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8917525773195877 [2024-11-22 18:03:23,735 INFO L175 Difference]: Start difference. First operand has 98 places, 97 transitions, 210 flow. Second operand 4 states and 346 transitions. [2024-11-22 18:03:23,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 102 transitions, 264 flow [2024-11-22 18:03:23,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 102 transitions, 264 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:03:23,742 INFO L231 Difference]: Finished difference. Result has 102 places, 96 transitions, 222 flow [2024-11-22 18:03:23,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=102, PETRI_TRANSITIONS=96} [2024-11-22 18:03:23,750 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 4 predicate places. [2024-11-22 18:03:23,751 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 96 transitions, 222 flow [2024-11-22 18:03:23,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:23,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:23,752 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:23,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 18:03:23,752 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-22 18:03:23,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:23,758 INFO L85 PathProgramCache]: Analyzing trace with hash -2146723974, now seen corresponding path program 1 times [2024-11-22 18:03:23,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:23,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519289264] [2024-11-22 18:03:23,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:23,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:24,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:24,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519289264] [2024-11-22 18:03:24,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519289264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:24,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:24,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:03:24,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220975287] [2024-11-22 18:03:24,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:24,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:03:24,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:24,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:03:24,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:03:24,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 97 [2024-11-22 18:03:24,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 96 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:24,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:24,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 97 [2024-11-22 18:03:24,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:24,577 INFO L124 PetriNetUnfolderBase]: 236/966 cut-off events. [2024-11-22 18:03:24,584 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-11-22 18:03:24,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 966 events. 236/966 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6773 event pairs, 34 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 457. Up to 313 conditions per place. [2024-11-22 18:03:24,603 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 38 selfloop transitions, 5 changer transitions 0/111 dead transitions. [2024-11-22 18:03:24,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 111 transitions, 338 flow [2024-11-22 18:03:24,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:03:24,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:03:24,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 451 transitions. [2024-11-22 18:03:24,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7749140893470791 [2024-11-22 18:03:24,611 INFO L175 Difference]: Start difference. First operand has 102 places, 96 transitions, 222 flow. Second operand 6 states and 451 transitions. [2024-11-22 18:03:24,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 111 transitions, 338 flow [2024-11-22 18:03:24,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 111 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:24,613 INFO L231 Difference]: Finished difference. Result has 104 places, 95 transitions, 224 flow [2024-11-22 18:03:24,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=224, PETRI_PLACES=104, PETRI_TRANSITIONS=95} [2024-11-22 18:03:24,619 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 6 predicate places. [2024-11-22 18:03:24,622 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 95 transitions, 224 flow [2024-11-22 18:03:24,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.5) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:24,628 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:24,630 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:24,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 18:03:24,630 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-22 18:03:24,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:24,631 INFO L85 PathProgramCache]: Analyzing trace with hash -600500514, now seen corresponding path program 1 times [2024-11-22 18:03:24,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:24,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635548857] [2024-11-22 18:03:24,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:24,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:24,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:24,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:24,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635548857] [2024-11-22 18:03:24,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635548857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:24,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:24,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:03:24,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562012320] [2024-11-22 18:03:24,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:24,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:24,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:24,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:24,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:24,704 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2024-11-22 18:03:24,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 95 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:24,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:24,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2024-11-22 18:03:24,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:24,862 INFO L124 PetriNetUnfolderBase]: 113/682 cut-off events. [2024-11-22 18:03:24,866 INFO L125 PetriNetUnfolderBase]: For 97/142 co-relation queries the response was YES. [2024-11-22 18:03:24,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 682 events. 113/682 cut-off events. For 97/142 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4351 event pairs, 73 based on Foata normal form. 3/606 useless extension candidates. Maximal degree in co-relation 734. Up to 182 conditions per place. [2024-11-22 18:03:24,869 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 18 selfloop transitions, 5 changer transitions 0/103 dead transitions. [2024-11-22 18:03:24,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 103 transitions, 294 flow [2024-11-22 18:03:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:24,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2024-11-22 18:03:24,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9072164948453608 [2024-11-22 18:03:24,875 INFO L175 Difference]: Start difference. First operand has 104 places, 95 transitions, 224 flow. Second operand 3 states and 264 transitions. [2024-11-22 18:03:24,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 103 transitions, 294 flow [2024-11-22 18:03:24,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 103 transitions, 284 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:03:24,877 INFO L231 Difference]: Finished difference. Result has 103 places, 99 transitions, 252 flow [2024-11-22 18:03:24,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=103, PETRI_TRANSITIONS=99} [2024-11-22 18:03:24,878 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 5 predicate places. [2024-11-22 18:03:24,879 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 99 transitions, 252 flow [2024-11-22 18:03:24,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:24,879 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:24,880 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:24,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 18:03:24,883 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-22 18:03:24,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:24,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1946356609, now seen corresponding path program 1 times [2024-11-22 18:03:24,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:24,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063247537] [2024-11-22 18:03:24,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:24,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:24,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:03:24,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:24,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063247537] [2024-11-22 18:03:24,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063247537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:24,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:24,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:03:24,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350871810] [2024-11-22 18:03:24,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:24,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:03:24,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:24,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:03:24,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:03:25,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2024-11-22 18:03:25,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 99 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:25,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:25,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2024-11-22 18:03:25,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:25,113 INFO L124 PetriNetUnfolderBase]: 57/561 cut-off events. [2024-11-22 18:03:25,114 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-11-22 18:03:25,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 561 events. 57/561 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3000 event pairs, 20 based on Foata normal form. 15/532 useless extension candidates. Maximal degree in co-relation 618. Up to 66 conditions per place. [2024-11-22 18:03:25,120 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 20 selfloop transitions, 4 changer transitions 2/110 dead transitions. [2024-11-22 18:03:25,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 110 transitions, 332 flow [2024-11-22 18:03:25,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:03:25,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:03:25,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 347 transitions. [2024-11-22 18:03:25,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8943298969072165 [2024-11-22 18:03:25,122 INFO L175 Difference]: Start difference. First operand has 103 places, 99 transitions, 252 flow. Second operand 4 states and 347 transitions. [2024-11-22 18:03:25,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 110 transitions, 332 flow [2024-11-22 18:03:25,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 110 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:25,124 INFO L231 Difference]: Finished difference. Result has 105 places, 100 transitions, 258 flow [2024-11-22 18:03:25,124 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=105, PETRI_TRANSITIONS=100} [2024-11-22 18:03:25,129 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 7 predicate places. [2024-11-22 18:03:25,129 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 100 transitions, 258 flow [2024-11-22 18:03:25,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:25,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:25,130 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:25,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 18:03:25,130 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-22 18:03:25,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:25,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1806144296, now seen corresponding path program 1 times [2024-11-22 18:03:25,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:25,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949934984] [2024-11-22 18:03:25,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:25,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:25,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:25,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:25,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949934984] [2024-11-22 18:03:25,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949934984] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:03:25,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585228598] [2024-11-22 18:03:25,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:25,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:03:25,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:03:25,281 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:03:25,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 18:03:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:25,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 18:03:25,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:03:25,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:25,538 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:03:25,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:25,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585228598] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:03:25,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:03:25,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-22 18:03:25,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730017289] [2024-11-22 18:03:25,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:03:25,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 18:03:25,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:25,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 18:03:25,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-22 18:03:25,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 97 [2024-11-22 18:03:25,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 258 flow. Second operand has 13 states, 13 states have (on average 78.92307692307692) internal successors, (1026), 13 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:25,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:25,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 97 [2024-11-22 18:03:25,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:25,965 INFO L124 PetriNetUnfolderBase]: 81/451 cut-off events. [2024-11-22 18:03:25,971 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-22 18:03:25,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 658 conditions, 451 events. 81/451 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2359 event pairs, 6 based on Foata normal form. 15/444 useless extension candidates. Maximal degree in co-relation 650. Up to 56 conditions per place. [2024-11-22 18:03:25,973 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 28 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2024-11-22 18:03:25,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 92 transitions, 290 flow [2024-11-22 18:03:25,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 18:03:25,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 18:03:25,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 808 transitions. [2024-11-22 18:03:25,981 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8329896907216495 [2024-11-22 18:03:25,981 INFO L175 Difference]: Start difference. First operand has 105 places, 100 transitions, 258 flow. Second operand 10 states and 808 transitions. [2024-11-22 18:03:25,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 92 transitions, 290 flow [2024-11-22 18:03:25,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 92 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:03:25,982 INFO L231 Difference]: Finished difference. Result has 86 places, 72 transitions, 193 flow [2024-11-22 18:03:25,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=193, PETRI_PLACES=86, PETRI_TRANSITIONS=72} [2024-11-22 18:03:25,983 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, -12 predicate places. [2024-11-22 18:03:25,983 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 72 transitions, 193 flow [2024-11-22 18:03:25,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 78.92307692307692) internal successors, (1026), 13 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:25,989 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:25,989 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:26,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 18:03:26,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 18:03:26,196 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-22 18:03:26,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:26,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1670194504, now seen corresponding path program 1 times [2024-11-22 18:03:26,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:26,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698169699] [2024-11-22 18:03:26,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:26,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:26,264 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 18:03:26,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:26,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698169699] [2024-11-22 18:03:26,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698169699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:26,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:26,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:03:26,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280727048] [2024-11-22 18:03:26,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:26,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:26,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:26,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:26,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:26,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 97 [2024-11-22 18:03:26,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 72 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:26,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:26,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 97 [2024-11-22 18:03:26,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:26,374 INFO L124 PetriNetUnfolderBase]: 27/229 cut-off events. [2024-11-22 18:03:26,374 INFO L125 PetriNetUnfolderBase]: For 27/31 co-relation queries the response was YES. [2024-11-22 18:03:26,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 229 events. 27/229 cut-off events. For 27/31 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 816 event pairs, 16 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 360. Up to 55 conditions per place. [2024-11-22 18:03:26,375 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 13 selfloop transitions, 5 changer transitions 0/77 dead transitions. [2024-11-22 18:03:26,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 77 transitions, 241 flow [2024-11-22 18:03:26,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:26,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:26,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2024-11-22 18:03:26,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8865979381443299 [2024-11-22 18:03:26,382 INFO L175 Difference]: Start difference. First operand has 86 places, 72 transitions, 193 flow. Second operand 3 states and 258 transitions. [2024-11-22 18:03:26,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 77 transitions, 241 flow [2024-11-22 18:03:26,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 77 transitions, 224 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-22 18:03:26,385 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 212 flow [2024-11-22 18:03:26,385 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=84, PETRI_TRANSITIONS=75} [2024-11-22 18:03:26,386 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, -14 predicate places. [2024-11-22 18:03:26,386 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 212 flow [2024-11-22 18:03:26,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:26,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:26,386 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:26,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 18:03:26,386 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2024-11-22 18:03:26,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:26,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1646502877, now seen corresponding path program 1 times [2024-11-22 18:03:26,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:26,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550713335] [2024-11-22 18:03:26,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:26,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:03:26,431 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:03:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:03:26,481 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:03:26,482 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:03:26,482 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2024-11-22 18:03:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-22 18:03:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-22 18:03:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-22 18:03:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-22 18:03:26,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-22 18:03:26,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-22 18:03:26,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 18:03:26,483 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:26,484 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:03:26,484 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-22 18:03:26,520 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-22 18:03:26,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 115 transitions, 257 flow [2024-11-22 18:03:26,614 INFO L124 PetriNetUnfolderBase]: 20/345 cut-off events. [2024-11-22 18:03:26,615 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-22 18:03:26,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 345 events. 20/345 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 968 event pairs, 1 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 211. Up to 16 conditions per place. [2024-11-22 18:03:26,615 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 115 transitions, 257 flow [2024-11-22 18:03:26,618 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 115 transitions, 257 flow [2024-11-22 18:03:26,619 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:03:26,625 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;@34d41444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:03:26,625 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-22 18:03:26,627 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:03:26,627 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-22 18:03:26,627 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:03:26,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:26,627 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:26,627 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 18:03:26,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:26,628 INFO L85 PathProgramCache]: Analyzing trace with hash 298571308, now seen corresponding path program 1 times [2024-11-22 18:03:26,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:26,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073499463] [2024-11-22 18:03:26,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:26,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:26,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:26,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073499463] [2024-11-22 18:03:26,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073499463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:26,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:26,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:03:26,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536015208] [2024-11-22 18:03:26,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:26,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:03:26,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:26,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:03:26,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:03:26,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 115 [2024-11-22 18:03:26,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 115 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:26,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:26,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 115 [2024-11-22 18:03:26,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:27,176 INFO L124 PetriNetUnfolderBase]: 413/2217 cut-off events. [2024-11-22 18:03:27,176 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2024-11-22 18:03:27,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2991 conditions, 2217 events. 413/2217 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 17749 event pairs, 232 based on Foata normal form. 64/2094 useless extension candidates. Maximal degree in co-relation 1335. Up to 496 conditions per place. [2024-11-22 18:03:27,212 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 24 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2024-11-22 18:03:27,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 122 transitions, 327 flow [2024-11-22 18:03:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:03:27,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:03:27,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 408 transitions. [2024-11-22 18:03:27,213 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8869565217391304 [2024-11-22 18:03:27,213 INFO L175 Difference]: Start difference. First operand has 117 places, 115 transitions, 257 flow. Second operand 4 states and 408 transitions. [2024-11-22 18:03:27,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 122 transitions, 327 flow [2024-11-22 18:03:27,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 122 transitions, 327 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:03:27,215 INFO L231 Difference]: Finished difference. Result has 121 places, 114 transitions, 269 flow [2024-11-22 18:03:27,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=269, PETRI_PLACES=121, PETRI_TRANSITIONS=114} [2024-11-22 18:03:27,220 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 4 predicate places. [2024-11-22 18:03:27,221 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 114 transitions, 269 flow [2024-11-22 18:03:27,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:27,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:27,221 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:27,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 18:03:27,221 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 18:03:27,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:27,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1311986835, now seen corresponding path program 1 times [2024-11-22 18:03:27,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:27,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051152574] [2024-11-22 18:03:27,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:27,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:27,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:27,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:27,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051152574] [2024-11-22 18:03:27,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051152574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:27,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:27,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:03:27,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783275032] [2024-11-22 18:03:27,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:27,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:03:27,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:27,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:03:27,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:03:27,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 115 [2024-11-22 18:03:27,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 114 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:27,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:27,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 115 [2024-11-22 18:03:27,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:28,544 INFO L124 PetriNetUnfolderBase]: 1295/3966 cut-off events. [2024-11-22 18:03:28,544 INFO L125 PetriNetUnfolderBase]: For 323/323 co-relation queries the response was YES. [2024-11-22 18:03:28,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6318 conditions, 3966 events. 1295/3966 cut-off events. For 323/323 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 34968 event pairs, 181 based on Foata normal form. 0/3693 useless extension candidates. Maximal degree in co-relation 2095. Up to 1483 conditions per place. [2024-11-22 18:03:28,590 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 50 selfloop transitions, 5 changer transitions 0/137 dead transitions. [2024-11-22 18:03:28,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 137 transitions, 425 flow [2024-11-22 18:03:28,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:03:28,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:03:28,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2024-11-22 18:03:28,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7927536231884058 [2024-11-22 18:03:28,598 INFO L175 Difference]: Start difference. First operand has 121 places, 114 transitions, 269 flow. Second operand 6 states and 547 transitions. [2024-11-22 18:03:28,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 137 transitions, 425 flow [2024-11-22 18:03:28,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 137 transitions, 419 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:28,601 INFO L231 Difference]: Finished difference. Result has 123 places, 113 transitions, 271 flow [2024-11-22 18:03:28,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=123, PETRI_TRANSITIONS=113} [2024-11-22 18:03:28,602 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 6 predicate places. [2024-11-22 18:03:28,605 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 113 transitions, 271 flow [2024-11-22 18:03:28,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:28,605 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:28,605 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:28,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 18:03:28,606 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 18:03:28,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:28,606 INFO L85 PathProgramCache]: Analyzing trace with hash 229011713, now seen corresponding path program 1 times [2024-11-22 18:03:28,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:28,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669037610] [2024-11-22 18:03:28,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:28,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:28,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:28,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:28,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669037610] [2024-11-22 18:03:28,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669037610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:28,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:28,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:03:28,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527564321] [2024-11-22 18:03:28,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:28,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:28,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:28,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:28,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:28,693 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 115 [2024-11-22 18:03:28,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 113 transitions, 271 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:28,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:28,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 115 [2024-11-22 18:03:28,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:29,304 INFO L124 PetriNetUnfolderBase]: 1006/3964 cut-off events. [2024-11-22 18:03:29,304 INFO L125 PetriNetUnfolderBase]: For 689/877 co-relation queries the response was YES. [2024-11-22 18:03:29,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5877 conditions, 3964 events. 1006/3964 cut-off events. For 689/877 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 37447 event pairs, 683 based on Foata normal form. 6/3504 useless extension candidates. Maximal degree in co-relation 4693. Up to 1312 conditions per place. [2024-11-22 18:03:29,385 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 27 selfloop transitions, 6 changer transitions 0/126 dead transitions. [2024-11-22 18:03:29,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 126 transitions, 381 flow [2024-11-22 18:03:29,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:29,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:29,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2024-11-22 18:03:29,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9072463768115943 [2024-11-22 18:03:29,459 INFO L175 Difference]: Start difference. First operand has 123 places, 113 transitions, 271 flow. Second operand 3 states and 313 transitions. [2024-11-22 18:03:29,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 126 transitions, 381 flow [2024-11-22 18:03:29,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 126 transitions, 371 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:03:29,461 INFO L231 Difference]: Finished difference. Result has 122 places, 118 transitions, 307 flow [2024-11-22 18:03:29,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=307, PETRI_PLACES=122, PETRI_TRANSITIONS=118} [2024-11-22 18:03:29,473 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 5 predicate places. [2024-11-22 18:03:29,473 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 118 transitions, 307 flow [2024-11-22 18:03:29,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:29,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:29,473 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:29,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 18:03:29,473 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 18:03:29,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:29,474 INFO L85 PathProgramCache]: Analyzing trace with hash 891797700, now seen corresponding path program 1 times [2024-11-22 18:03:29,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:29,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383834597] [2024-11-22 18:03:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:29,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:29,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:03:29,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:29,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383834597] [2024-11-22 18:03:29,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383834597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:29,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:29,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:03:29,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589073335] [2024-11-22 18:03:29,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:29,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:03:29,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:29,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:03:29,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:03:29,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 115 [2024-11-22 18:03:29,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 118 transitions, 307 flow. Second operand has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:29,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:29,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 115 [2024-11-22 18:03:29,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:30,333 INFO L124 PetriNetUnfolderBase]: 616/3187 cut-off events. [2024-11-22 18:03:30,334 INFO L125 PetriNetUnfolderBase]: For 440/444 co-relation queries the response was YES. [2024-11-22 18:03:30,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4715 conditions, 3187 events. 616/3187 cut-off events. For 440/444 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 29208 event pairs, 252 based on Foata normal form. 63/2922 useless extension candidates. Maximal degree in co-relation 3838. Up to 511 conditions per place. [2024-11-22 18:03:30,383 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 31 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2024-11-22 18:03:30,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 134 transitions, 418 flow [2024-11-22 18:03:30,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:03:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:03:30,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 412 transitions. [2024-11-22 18:03:30,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8956521739130435 [2024-11-22 18:03:30,389 INFO L175 Difference]: Start difference. First operand has 122 places, 118 transitions, 307 flow. Second operand 4 states and 412 transitions. [2024-11-22 18:03:30,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 134 transitions, 418 flow [2024-11-22 18:03:30,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 134 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:30,394 INFO L231 Difference]: Finished difference. Result has 124 places, 119 transitions, 311 flow [2024-11-22 18:03:30,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=311, PETRI_PLACES=124, PETRI_TRANSITIONS=119} [2024-11-22 18:03:30,400 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 7 predicate places. [2024-11-22 18:03:30,400 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 119 transitions, 311 flow [2024-11-22 18:03:30,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:30,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:30,400 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:30,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 18:03:30,400 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 18:03:30,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:30,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1167396584, now seen corresponding path program 1 times [2024-11-22 18:03:30,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:30,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534624956] [2024-11-22 18:03:30,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:30,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:30,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:30,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:30,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534624956] [2024-11-22 18:03:30,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534624956] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:03:30,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56007883] [2024-11-22 18:03:30,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:30,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:03:30,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:03:30,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:03:30,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 18:03:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:30,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 18:03:30,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:03:30,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:30,890 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:03:30,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:30,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56007883] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:03:30,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:03:30,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-22 18:03:30,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419839341] [2024-11-22 18:03:30,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:03:30,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 18:03:30,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:30,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 18:03:30,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-22 18:03:31,104 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 115 [2024-11-22 18:03:31,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 119 transitions, 311 flow. Second operand has 13 states, 13 states have (on average 92.92307692307692) internal successors, (1208), 13 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:31,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:31,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 115 [2024-11-22 18:03:31,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:32,011 INFO L124 PetriNetUnfolderBase]: 1016/4727 cut-off events. [2024-11-22 18:03:32,014 INFO L125 PetriNetUnfolderBase]: For 589/589 co-relation queries the response was YES. [2024-11-22 18:03:32,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6998 conditions, 4727 events. 1016/4727 cut-off events. For 589/589 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 45383 event pairs, 151 based on Foata normal form. 15/4186 useless extension candidates. Maximal degree in co-relation 3820. Up to 749 conditions per place. [2024-11-22 18:03:32,065 INFO L140 encePairwiseOnDemand]: 107/115 looper letters, 50 selfloop transitions, 11 changer transitions 0/157 dead transitions. [2024-11-22 18:03:32,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 157 transitions, 511 flow [2024-11-22 18:03:32,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 18:03:32,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 18:03:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 973 transitions. [2024-11-22 18:03:32,067 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8460869565217392 [2024-11-22 18:03:32,071 INFO L175 Difference]: Start difference. First operand has 124 places, 119 transitions, 311 flow. Second operand 10 states and 973 transitions. [2024-11-22 18:03:32,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 157 transitions, 511 flow [2024-11-22 18:03:32,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 157 transitions, 505 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:32,079 INFO L231 Difference]: Finished difference. Result has 134 places, 125 transitions, 361 flow [2024-11-22 18:03:32,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=361, PETRI_PLACES=134, PETRI_TRANSITIONS=125} [2024-11-22 18:03:32,080 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 17 predicate places. [2024-11-22 18:03:32,080 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 125 transitions, 361 flow [2024-11-22 18:03:32,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 92.92307692307692) internal successors, (1208), 13 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:32,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:32,081 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:32,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 18:03:32,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 18:03:32,282 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 18:03:32,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:32,283 INFO L85 PathProgramCache]: Analyzing trace with hash 326891128, now seen corresponding path program 1 times [2024-11-22 18:03:32,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:32,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123689892] [2024-11-22 18:03:32,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:32,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:32,381 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 18:03:32,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:32,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123689892] [2024-11-22 18:03:32,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123689892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:32,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:32,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:03:32,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850656902] [2024-11-22 18:03:32,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:32,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:32,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:32,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:32,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:32,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 115 [2024-11-22 18:03:32,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 125 transitions, 361 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:32,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:32,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 115 [2024-11-22 18:03:32,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:33,196 INFO L124 PetriNetUnfolderBase]: 902/4358 cut-off events. [2024-11-22 18:03:33,200 INFO L125 PetriNetUnfolderBase]: For 1389/1779 co-relation queries the response was YES. [2024-11-22 18:03:33,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7151 conditions, 4358 events. 902/4358 cut-off events. For 1389/1779 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 42585 event pairs, 487 based on Foata normal form. 16/3918 useless extension candidates. Maximal degree in co-relation 2739. Up to 1159 conditions per place. [2024-11-22 18:03:33,252 INFO L140 encePairwiseOnDemand]: 108/115 looper letters, 28 selfloop transitions, 9 changer transitions 0/139 dead transitions. [2024-11-22 18:03:33,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 139 transitions, 486 flow [2024-11-22 18:03:33,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:33,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:33,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2024-11-22 18:03:33,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9043478260869565 [2024-11-22 18:03:33,253 INFO L175 Difference]: Start difference. First operand has 134 places, 125 transitions, 361 flow. Second operand 3 states and 312 transitions. [2024-11-22 18:03:33,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 139 transitions, 486 flow [2024-11-22 18:03:33,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 139 transitions, 478 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:33,256 INFO L231 Difference]: Finished difference. Result has 136 places, 132 transitions, 429 flow [2024-11-22 18:03:33,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=429, PETRI_PLACES=136, PETRI_TRANSITIONS=132} [2024-11-22 18:03:33,261 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 19 predicate places. [2024-11-22 18:03:33,261 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 132 transitions, 429 flow [2024-11-22 18:03:33,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:33,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:33,263 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:33,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 18:03:33,263 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 18:03:33,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:33,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1507852796, now seen corresponding path program 1 times [2024-11-22 18:03:33,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:33,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364556424] [2024-11-22 18:03:33,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:33,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:33,385 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 18:03:33,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:33,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364556424] [2024-11-22 18:03:33,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364556424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:33,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:33,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:03:33,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935326559] [2024-11-22 18:03:33,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:33,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:33,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:33,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:33,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:33,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 115 [2024-11-22 18:03:33,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 132 transitions, 429 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:33,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:33,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 115 [2024-11-22 18:03:33,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:33,605 INFO L124 PetriNetUnfolderBase]: 91/1246 cut-off events. [2024-11-22 18:03:33,609 INFO L125 PetriNetUnfolderBase]: For 334/370 co-relation queries the response was YES. [2024-11-22 18:03:33,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1900 conditions, 1246 events. 91/1246 cut-off events. For 334/370 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 9041 event pairs, 48 based on Foata normal form. 20/1178 useless extension candidates. Maximal degree in co-relation 1620. Up to 106 conditions per place. [2024-11-22 18:03:33,618 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 12 selfloop transitions, 6 changer transitions 0/131 dead transitions. [2024-11-22 18:03:33,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 131 transitions, 450 flow [2024-11-22 18:03:33,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:33,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:33,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2024-11-22 18:03:33,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9304347826086956 [2024-11-22 18:03:33,619 INFO L175 Difference]: Start difference. First operand has 136 places, 132 transitions, 429 flow. Second operand 3 states and 321 transitions. [2024-11-22 18:03:33,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 131 transitions, 450 flow [2024-11-22 18:03:33,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 131 transitions, 438 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:33,622 INFO L231 Difference]: Finished difference. Result has 136 places, 126 transitions, 383 flow [2024-11-22 18:03:33,626 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=383, PETRI_PLACES=136, PETRI_TRANSITIONS=126} [2024-11-22 18:03:33,626 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 19 predicate places. [2024-11-22 18:03:33,627 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 126 transitions, 383 flow [2024-11-22 18:03:33,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:33,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:33,627 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:33,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 18:03:33,627 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 18:03:33,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:33,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1467994336, now seen corresponding path program 1 times [2024-11-22 18:03:33,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:33,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619439592] [2024-11-22 18:03:33,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:33,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:33,693 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-22 18:03:33,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:33,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619439592] [2024-11-22 18:03:33,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619439592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:33,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:33,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:03:33,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343588217] [2024-11-22 18:03:33,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:33,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:33,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:33,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:33,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:33,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 115 [2024-11-22 18:03:33,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 126 transitions, 383 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:33,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:33,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 115 [2024-11-22 18:03:33,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:33,925 INFO L124 PetriNetUnfolderBase]: 177/1427 cut-off events. [2024-11-22 18:03:33,926 INFO L125 PetriNetUnfolderBase]: For 714/762 co-relation queries the response was YES. [2024-11-22 18:03:33,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2488 conditions, 1427 events. 177/1427 cut-off events. For 714/762 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11085 event pairs, 135 based on Foata normal form. 3/1315 useless extension candidates. Maximal degree in co-relation 2169. Up to 336 conditions per place. [2024-11-22 18:03:33,931 INFO L140 encePairwiseOnDemand]: 110/115 looper letters, 23 selfloop transitions, 4 changer transitions 0/131 dead transitions. [2024-11-22 18:03:33,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 131 transitions, 457 flow [2024-11-22 18:03:33,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:33,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:33,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2024-11-22 18:03:33,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2024-11-22 18:03:33,933 INFO L175 Difference]: Start difference. First operand has 136 places, 126 transitions, 383 flow. Second operand 3 states and 305 transitions. [2024-11-22 18:03:33,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 131 transitions, 457 flow [2024-11-22 18:03:33,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 131 transitions, 451 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:03:33,936 INFO L231 Difference]: Finished difference. Result has 139 places, 129 transitions, 411 flow [2024-11-22 18:03:33,936 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=411, PETRI_PLACES=139, PETRI_TRANSITIONS=129} [2024-11-22 18:03:33,936 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, 22 predicate places. [2024-11-22 18:03:33,936 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 129 transitions, 411 flow [2024-11-22 18:03:33,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:33,937 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:33,937 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:33,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 18:03:33,937 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 18:03:33,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:33,937 INFO L85 PathProgramCache]: Analyzing trace with hash -2119273415, now seen corresponding path program 1 times [2024-11-22 18:03:33,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:33,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622532782] [2024-11-22 18:03:33,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:33,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:34,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:34,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622532782] [2024-11-22 18:03:34,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622532782] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:03:34,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100115498] [2024-11-22 18:03:34,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:34,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:03:34,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:03:34,123 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:03:34,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 18:03:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:34,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 18:03:34,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:03:34,592 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:34,595 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:03:34,808 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:34,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100115498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:03:34,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:03:34,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-22 18:03:34,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21132410] [2024-11-22 18:03:34,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:03:34,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 18:03:34,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:34,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 18:03:34,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-22 18:03:35,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 115 [2024-11-22 18:03:35,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 129 transitions, 411 flow. Second operand has 19 states, 19 states have (on average 93.21052631578948) internal successors, (1771), 19 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:35,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:35,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 115 [2024-11-22 18:03:35,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:35,593 INFO L124 PetriNetUnfolderBase]: 151/831 cut-off events. [2024-11-22 18:03:35,594 INFO L125 PetriNetUnfolderBase]: For 345/345 co-relation queries the response was YES. [2024-11-22 18:03:35,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1523 conditions, 831 events. 151/831 cut-off events. For 345/345 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4889 event pairs, 0 based on Foata normal form. 20/832 useless extension candidates. Maximal degree in co-relation 1508. Up to 88 conditions per place. [2024-11-22 18:03:35,604 INFO L140 encePairwiseOnDemand]: 109/115 looper letters, 50 selfloop transitions, 11 changer transitions 0/125 dead transitions. [2024-11-22 18:03:35,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 125 transitions, 502 flow [2024-11-22 18:03:35,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 18:03:35,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-22 18:03:35,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1245 transitions. [2024-11-22 18:03:35,615 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8327759197324415 [2024-11-22 18:03:35,615 INFO L175 Difference]: Start difference. First operand has 139 places, 129 transitions, 411 flow. Second operand 13 states and 1245 transitions. [2024-11-22 18:03:35,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 125 transitions, 502 flow [2024-11-22 18:03:35,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 125 transitions, 463 flow, removed 8 selfloop flow, removed 11 redundant places. [2024-11-22 18:03:35,621 INFO L231 Difference]: Finished difference. Result has 110 places, 87 transitions, 247 flow [2024-11-22 18:03:35,621 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=247, PETRI_PLACES=110, PETRI_TRANSITIONS=87} [2024-11-22 18:03:35,622 INFO L277 CegarLoopForPetriNet]: 117 programPoint places, -7 predicate places. [2024-11-22 18:03:35,623 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 87 transitions, 247 flow [2024-11-22 18:03:35,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 93.21052631578948) internal successors, (1771), 19 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:35,625 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:35,625 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:35,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-22 18:03:35,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:03:35,832 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-22 18:03:35,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:35,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1867873371, now seen corresponding path program 1 times [2024-11-22 18:03:35,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:35,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709617040] [2024-11-22 18:03:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:35,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:03:35,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:03:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:03:35,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:03:35,905 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:03:35,909 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2024-11-22 18:03:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2024-11-22 18:03:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2024-11-22 18:03:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2024-11-22 18:03:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2024-11-22 18:03:35,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2024-11-22 18:03:35,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2024-11-22 18:03:35,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2024-11-22 18:03:35,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 18:03:35,910 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:35,910 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 18:03:35,910 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-22 18:03:35,934 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-22 18:03:35,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 133 transitions, 306 flow [2024-11-22 18:03:36,011 INFO L124 PetriNetUnfolderBase]: 42/595 cut-off events. [2024-11-22 18:03:36,015 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-22 18:03:36,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 595 events. 42/595 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2179 event pairs, 6 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 365. Up to 32 conditions per place. [2024-11-22 18:03:36,017 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 133 transitions, 306 flow [2024-11-22 18:03:36,023 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 133 transitions, 306 flow [2024-11-22 18:03:36,024 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:03:36,024 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;@34d41444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:03:36,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-22 18:03:36,025 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 18:03:36,025 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2024-11-22 18:03:36,025 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 18:03:36,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:36,025 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:36,025 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:03:36,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:36,026 INFO L85 PathProgramCache]: Analyzing trace with hash -2057079540, now seen corresponding path program 1 times [2024-11-22 18:03:36,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:36,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428801092] [2024-11-22 18:03:36,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:36,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:36,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:36,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:36,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428801092] [2024-11-22 18:03:36,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428801092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:36,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:36,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:03:36,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436134783] [2024-11-22 18:03:36,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:36,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:03:36,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:36,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:03:36,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:03:36,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2024-11-22 18:03:36,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:36,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:36,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2024-11-22 18:03:36,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:37,584 INFO L124 PetriNetUnfolderBase]: 2017/8327 cut-off events. [2024-11-22 18:03:37,584 INFO L125 PetriNetUnfolderBase]: For 1213/1213 co-relation queries the response was YES. [2024-11-22 18:03:37,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11728 conditions, 8327 events. 2017/8327 cut-off events. For 1213/1213 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 85400 event pairs, 1191 based on Foata normal form. 252/7867 useless extension candidates. Maximal degree in co-relation 5299. Up to 2119 conditions per place. [2024-11-22 18:03:37,657 INFO L140 encePairwiseOnDemand]: 126/133 looper letters, 30 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2024-11-22 18:03:37,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 142 transitions, 392 flow [2024-11-22 18:03:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:03:37,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:03:37,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 470 transitions. [2024-11-22 18:03:37,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8834586466165414 [2024-11-22 18:03:37,663 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 306 flow. Second operand 4 states and 470 transitions. [2024-11-22 18:03:37,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 142 transitions, 392 flow [2024-11-22 18:03:37,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 142 transitions, 392 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 18:03:37,674 INFO L231 Difference]: Finished difference. Result has 140 places, 132 transitions, 318 flow [2024-11-22 18:03:37,674 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=318, PETRI_PLACES=140, PETRI_TRANSITIONS=132} [2024-11-22 18:03:37,674 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 4 predicate places. [2024-11-22 18:03:37,674 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 132 transitions, 318 flow [2024-11-22 18:03:37,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:37,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:37,675 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:37,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 18:03:37,675 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:03:37,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:37,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1259349106, now seen corresponding path program 1 times [2024-11-22 18:03:37,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:37,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591076506] [2024-11-22 18:03:37,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:37,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:37,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:37,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:37,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591076506] [2024-11-22 18:03:37,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591076506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:37,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:37,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:03:37,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986269912] [2024-11-22 18:03:37,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:37,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:03:37,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:37,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:03:37,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:03:38,030 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 133 [2024-11-22 18:03:38,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 132 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:38,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:38,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 133 [2024-11-22 18:03:38,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:40,452 INFO L124 PetriNetUnfolderBase]: 6248/15894 cut-off events. [2024-11-22 18:03:40,453 INFO L125 PetriNetUnfolderBase]: For 1589/1589 co-relation queries the response was YES. [2024-11-22 18:03:40,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25970 conditions, 15894 events. 6248/15894 cut-off events. For 1589/1589 co-relation queries the response was YES. Maximal size of possible extension queue 629. Compared 162585 event pairs, 808 based on Foata normal form. 0/14856 useless extension candidates. Maximal degree in co-relation 9040. Up to 6781 conditions per place. [2024-11-22 18:03:40,926 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 62 selfloop transitions, 5 changer transitions 0/163 dead transitions. [2024-11-22 18:03:40,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 163 transitions, 514 flow [2024-11-22 18:03:40,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:03:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:03:40,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 643 transitions. [2024-11-22 18:03:40,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8057644110275689 [2024-11-22 18:03:40,931 INFO L175 Difference]: Start difference. First operand has 140 places, 132 transitions, 318 flow. Second operand 6 states and 643 transitions. [2024-11-22 18:03:40,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 163 transitions, 514 flow [2024-11-22 18:03:40,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 163 transitions, 508 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:40,954 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 320 flow [2024-11-22 18:03:40,954 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2024-11-22 18:03:40,955 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 6 predicate places. [2024-11-22 18:03:40,956 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 320 flow [2024-11-22 18:03:40,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:40,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:40,957 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:40,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 18:03:40,957 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:03:40,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:40,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1751841594, now seen corresponding path program 1 times [2024-11-22 18:03:40,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:40,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955218691] [2024-11-22 18:03:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:40,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:40,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:40,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:40,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955218691] [2024-11-22 18:03:40,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955218691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:40,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:40,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:03:40,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413257729] [2024-11-22 18:03:40,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:40,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:40,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:40,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:40,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:41,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-22 18:03:41,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:41,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:41,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-22 18:03:41,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:44,536 INFO L124 PetriNetUnfolderBase]: 7178/23603 cut-off events. [2024-11-22 18:03:44,536 INFO L125 PetriNetUnfolderBase]: For 4926/6168 co-relation queries the response was YES. [2024-11-22 18:03:44,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35693 conditions, 23603 events. 7178/23603 cut-off events. For 4926/6168 co-relation queries the response was YES. Maximal size of possible extension queue 877. Compared 286780 event pairs, 4486 based on Foata normal form. 11/20852 useless extension candidates. Maximal degree in co-relation 12989. Up to 8464 conditions per place. [2024-11-22 18:03:44,822 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 36 selfloop transitions, 7 changer transitions 0/149 dead transitions. [2024-11-22 18:03:44,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 149 transitions, 472 flow [2024-11-22 18:03:44,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:44,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:44,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2024-11-22 18:03:44,823 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9072681704260651 [2024-11-22 18:03:44,823 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 320 flow. Second operand 3 states and 362 transitions. [2024-11-22 18:03:44,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 149 transitions, 472 flow [2024-11-22 18:03:44,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 149 transitions, 462 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 18:03:44,826 INFO L231 Difference]: Finished difference. Result has 141 places, 137 transitions, 364 flow [2024-11-22 18:03:44,828 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=141, PETRI_TRANSITIONS=137} [2024-11-22 18:03:44,828 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 5 predicate places. [2024-11-22 18:03:44,829 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 137 transitions, 364 flow [2024-11-22 18:03:44,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:44,829 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:44,829 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:44,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 18:03:44,829 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:03:44,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:44,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1573180249, now seen corresponding path program 1 times [2024-11-22 18:03:44,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:44,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068381777] [2024-11-22 18:03:44,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:44,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:44,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 18:03:44,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:44,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068381777] [2024-11-22 18:03:44,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068381777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:44,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:44,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:03:44,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777921521] [2024-11-22 18:03:44,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:44,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:03:44,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:44,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:03:44,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:03:44,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2024-11-22 18:03:44,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:44,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:44,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2024-11-22 18:03:44,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:48,226 INFO L124 PetriNetUnfolderBase]: 5437/19811 cut-off events. [2024-11-22 18:03:48,227 INFO L125 PetriNetUnfolderBase]: For 2732/2798 co-relation queries the response was YES. [2024-11-22 18:03:48,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30233 conditions, 19811 events. 5437/19811 cut-off events. For 2732/2798 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 241495 event pairs, 2945 based on Foata normal form. 259/17673 useless extension candidates. Maximal degree in co-relation 24434. Up to 3835 conditions per place. [2024-11-22 18:03:48,450 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 40 selfloop transitions, 4 changer transitions 0/158 dead transitions. [2024-11-22 18:03:48,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 158 transitions, 506 flow [2024-11-22 18:03:48,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:03:48,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 18:03:48,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 477 transitions. [2024-11-22 18:03:48,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8966165413533834 [2024-11-22 18:03:48,452 INFO L175 Difference]: Start difference. First operand has 141 places, 137 transitions, 364 flow. Second operand 4 states and 477 transitions. [2024-11-22 18:03:48,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 158 transitions, 506 flow [2024-11-22 18:03:48,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 158 transitions, 492 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:48,483 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 366 flow [2024-11-22 18:03:48,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=366, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2024-11-22 18:03:48,484 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 7 predicate places. [2024-11-22 18:03:48,484 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 366 flow [2024-11-22 18:03:48,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:48,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:48,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:48,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 18:03:48,485 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:03:48,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:48,492 INFO L85 PathProgramCache]: Analyzing trace with hash -115188152, now seen corresponding path program 1 times [2024-11-22 18:03:48,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:48,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158243602] [2024-11-22 18:03:48,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:48,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:48,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:48,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:48,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158243602] [2024-11-22 18:03:48,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158243602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:03:48,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065112960] [2024-11-22 18:03:48,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:48,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:03:48,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:03:48,624 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:03:48,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 18:03:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:48,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 18:03:48,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:03:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:48,985 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:03:49,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:49,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065112960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:03:49,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:03:49,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-11-22 18:03:49,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731446505] [2024-11-22 18:03:49,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:03:49,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 18:03:49,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:49,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 18:03:49,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-22 18:03:49,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 133 [2024-11-22 18:03:49,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 366 flow. Second operand has 13 states, 13 states have (on average 106.92307692307692) internal successors, (1390), 13 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:49,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:49,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 133 [2024-11-22 18:03:49,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:52,671 INFO L124 PetriNetUnfolderBase]: 6978/25523 cut-off events. [2024-11-22 18:03:52,671 INFO L125 PetriNetUnfolderBase]: For 3257/3257 co-relation queries the response was YES. [2024-11-22 18:03:52,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39069 conditions, 25523 events. 6978/25523 cut-off events. For 3257/3257 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 321094 event pairs, 1505 based on Foata normal form. 15/22059 useless extension candidates. Maximal degree in co-relation 18423. Up to 4886 conditions per place. [2024-11-22 18:03:52,854 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 58 selfloop transitions, 11 changer transitions 0/180 dead transitions. [2024-11-22 18:03:52,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 180 transitions, 590 flow [2024-11-22 18:03:52,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 18:03:52,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 18:03:52,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1121 transitions. [2024-11-22 18:03:52,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8428571428571429 [2024-11-22 18:03:52,858 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 366 flow. Second operand 10 states and 1121 transitions. [2024-11-22 18:03:52,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 180 transitions, 590 flow [2024-11-22 18:03:52,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 180 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:52,880 INFO L231 Difference]: Finished difference. Result has 153 places, 144 transitions, 416 flow [2024-11-22 18:03:52,880 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=416, PETRI_PLACES=153, PETRI_TRANSITIONS=144} [2024-11-22 18:03:52,881 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 17 predicate places. [2024-11-22 18:03:52,881 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 144 transitions, 416 flow [2024-11-22 18:03:52,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 106.92307692307692) internal successors, (1390), 13 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:52,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:52,882 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:52,888 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 18:03:53,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-22 18:03:53,086 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:03:53,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:53,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1513130808, now seen corresponding path program 1 times [2024-11-22 18:03:53,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:53,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109531729] [2024-11-22 18:03:53,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:53,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:53,121 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 18:03:53,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:53,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109531729] [2024-11-22 18:03:53,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109531729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:53,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:53,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:03:53,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20295261] [2024-11-22 18:03:53,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:53,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:53,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:53,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:53,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:53,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-22 18:03:53,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 144 transitions, 416 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:53,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:53,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-22 18:03:53,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:56,109 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([476] L698-->L698-1: Formula: (= |v_#race~data~0_1| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][156], [162#(<= 4 |ULTIMATE.start_main_~threads_total~0#1|), 88#L698-1true, 79#L686true, 131#true, 84#L685-6true, 134#true, 133#true, Black: 428#(and (<= 4 |ULTIMATE.start_main_~threads_total~0#1|) (<= (+ |ULTIMATE.start_main_~i~0#1| 1) |ULTIMATE.start_main_~threads_total~0#1|)), Black: 142#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= 4 |ULTIMATE.start_main_~threads_total~0#1|)), Black: 261#(and (<= 4 |ULTIMATE.start_main_~threads_total~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)), 136#true, 432#true, Black: 152#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet2|), Black: 158#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= 4 |ULTIMATE.start_main_~threads_total~0#1|))]) [2024-11-22 18:03:56,109 INFO L294 olderBase$Statistics]: this new event has 163 ancestors and is cut-off event [2024-11-22 18:03:56,109 INFO L297 olderBase$Statistics]: existing Event has 163 ancestors and is cut-off event [2024-11-22 18:03:56,109 INFO L297 olderBase$Statistics]: existing Event has 119 ancestors and is cut-off event [2024-11-22 18:03:56,109 INFO L297 olderBase$Statistics]: existing Event has 119 ancestors and is cut-off event [2024-11-22 18:03:56,116 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([476] L698-->L698-1: Formula: (= |v_#race~data~0_1| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][156], [20#L686-3true, 162#(<= 4 |ULTIMATE.start_main_~threads_total~0#1|), 88#L698-1true, 131#true, 84#L685-6true, 133#true, 134#true, Black: 428#(and (<= 4 |ULTIMATE.start_main_~threads_total~0#1|) (<= (+ |ULTIMATE.start_main_~i~0#1| 1) |ULTIMATE.start_main_~threads_total~0#1|)), Black: 142#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= 4 |ULTIMATE.start_main_~threads_total~0#1|)), Black: 261#(and (<= 4 |ULTIMATE.start_main_~threads_total~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)), 136#true, 432#true, Black: 152#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet2|), Black: 158#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= 4 |ULTIMATE.start_main_~threads_total~0#1|))]) [2024-11-22 18:03:56,116 INFO L294 olderBase$Statistics]: this new event has 164 ancestors and is cut-off event [2024-11-22 18:03:56,116 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2024-11-22 18:03:56,116 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2024-11-22 18:03:56,116 INFO L297 olderBase$Statistics]: existing Event has 164 ancestors and is cut-off event [2024-11-22 18:03:56,150 INFO L124 PetriNetUnfolderBase]: 8673/29230 cut-off events. [2024-11-22 18:03:56,150 INFO L125 PetriNetUnfolderBase]: For 10788/11943 co-relation queries the response was YES. [2024-11-22 18:03:56,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50760 conditions, 29230 events. 8673/29230 cut-off events. For 10788/11943 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 377384 event pairs, 5334 based on Foata normal form. 26/26339 useless extension candidates. Maximal degree in co-relation 41932. Up to 9950 conditions per place. [2024-11-22 18:03:56,375 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 38 selfloop transitions, 11 changer transitions 0/164 dead transitions. [2024-11-22 18:03:56,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 164 transitions, 593 flow [2024-11-22 18:03:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:56,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:56,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2024-11-22 18:03:56,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2024-11-22 18:03:56,377 INFO L175 Difference]: Start difference. First operand has 153 places, 144 transitions, 416 flow. Second operand 3 states and 361 transitions. [2024-11-22 18:03:56,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 164 transitions, 593 flow [2024-11-22 18:03:56,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 164 transitions, 585 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:56,397 INFO L231 Difference]: Finished difference. Result has 155 places, 153 transitions, 504 flow [2024-11-22 18:03:56,397 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=155, PETRI_TRANSITIONS=153} [2024-11-22 18:03:56,397 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 19 predicate places. [2024-11-22 18:03:56,397 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 153 transitions, 504 flow [2024-11-22 18:03:56,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:56,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:56,398 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:56,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 18:03:56,398 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:03:56,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:56,399 INFO L85 PathProgramCache]: Analyzing trace with hash -185948868, now seen corresponding path program 1 times [2024-11-22 18:03:56,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:56,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115029879] [2024-11-22 18:03:56,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:56,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:56,445 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 18:03:56,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:56,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115029879] [2024-11-22 18:03:56,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115029879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:56,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:56,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:03:56,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743125145] [2024-11-22 18:03:56,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:56,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:56,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:56,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:56,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:56,459 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 133 [2024-11-22 18:03:56,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 153 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:56,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:56,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 133 [2024-11-22 18:03:56,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:57,044 INFO L124 PetriNetUnfolderBase]: 472/4812 cut-off events. [2024-11-22 18:03:57,044 INFO L125 PetriNetUnfolderBase]: For 1516/1662 co-relation queries the response was YES. [2024-11-22 18:03:57,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7431 conditions, 4812 events. 472/4812 cut-off events. For 1516/1662 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 51996 event pairs, 234 based on Foata normal form. 128/4549 useless extension candidates. Maximal degree in co-relation 5367. Up to 454 conditions per place. [2024-11-22 18:03:57,065 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 16 selfloop transitions, 8 changer transitions 0/151 dead transitions. [2024-11-22 18:03:57,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 151 transitions, 531 flow [2024-11-22 18:03:57,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:57,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:57,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2024-11-22 18:03:57,066 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9273182957393483 [2024-11-22 18:03:57,066 INFO L175 Difference]: Start difference. First operand has 155 places, 153 transitions, 504 flow. Second operand 3 states and 370 transitions. [2024-11-22 18:03:57,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 151 transitions, 531 flow [2024-11-22 18:03:57,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 151 transitions, 519 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:57,075 INFO L231 Difference]: Finished difference. Result has 155 places, 144 transitions, 440 flow [2024-11-22 18:03:57,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=440, PETRI_PLACES=155, PETRI_TRANSITIONS=144} [2024-11-22 18:03:57,077 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 19 predicate places. [2024-11-22 18:03:57,077 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 144 transitions, 440 flow [2024-11-22 18:03:57,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:57,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:57,078 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:57,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 18:03:57,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:03:57,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:57,079 INFO L85 PathProgramCache]: Analyzing trace with hash -173072363, now seen corresponding path program 1 times [2024-11-22 18:03:57,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:57,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858923676] [2024-11-22 18:03:57,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:57,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:57,119 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-22 18:03:57,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:57,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858923676] [2024-11-22 18:03:57,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858923676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:57,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:57,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:03:57,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493618821] [2024-11-22 18:03:57,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:57,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:57,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:57,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:57,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:57,154 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-22 18:03:57,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 144 transitions, 440 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:57,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:57,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-22 18:03:57,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:57,815 INFO L124 PetriNetUnfolderBase]: 928/5648 cut-off events. [2024-11-22 18:03:57,816 INFO L125 PetriNetUnfolderBase]: For 3543/3687 co-relation queries the response was YES. [2024-11-22 18:03:57,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10258 conditions, 5648 events. 928/5648 cut-off events. For 3543/3687 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 62888 event pairs, 707 based on Foata normal form. 7/5136 useless extension candidates. Maximal degree in co-relation 7438. Up to 1545 conditions per place. [2024-11-22 18:03:57,854 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 30 selfloop transitions, 4 changer transitions 0/151 dead transitions. [2024-11-22 18:03:57,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 151 transitions, 544 flow [2024-11-22 18:03:57,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:03:57,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:03:57,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2024-11-22 18:03:57,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8796992481203008 [2024-11-22 18:03:57,856 INFO L175 Difference]: Start difference. First operand has 155 places, 144 transitions, 440 flow. Second operand 3 states and 351 transitions. [2024-11-22 18:03:57,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 151 transitions, 544 flow [2024-11-22 18:03:57,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 151 transitions, 536 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 18:03:57,863 INFO L231 Difference]: Finished difference. Result has 158 places, 147 transitions, 466 flow [2024-11-22 18:03:57,863 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=466, PETRI_PLACES=158, PETRI_TRANSITIONS=147} [2024-11-22 18:03:57,867 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 22 predicate places. [2024-11-22 18:03:57,867 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 147 transitions, 466 flow [2024-11-22 18:03:57,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:57,867 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:57,867 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:57,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 18:03:57,868 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:03:57,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash -986148343, now seen corresponding path program 1 times [2024-11-22 18:03:57,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:57,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509588560] [2024-11-22 18:03:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:57,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:58,016 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:58,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:58,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509588560] [2024-11-22 18:03:58,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509588560] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:03:58,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696053802] [2024-11-22 18:03:58,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:58,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:03:58,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:03:58,019 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:03:58,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 18:03:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:58,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-22 18:03:58,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:03:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:58,334 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:03:58,439 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:03:58,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696053802] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:03:58,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:03:58,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-11-22 18:03:58,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860289653] [2024-11-22 18:03:58,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:03:58,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 18:03:58,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:58,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 18:03:58,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-22 18:03:58,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 133 [2024-11-22 18:03:58,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 147 transitions, 466 flow. Second operand has 19 states, 19 states have (on average 107.21052631578948) internal successors, (2037), 19 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:58,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:58,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 133 [2024-11-22 18:03:58,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:03:59,484 INFO L124 PetriNetUnfolderBase]: 1216/8424 cut-off events. [2024-11-22 18:03:59,485 INFO L125 PetriNetUnfolderBase]: For 3420/3686 co-relation queries the response was YES. [2024-11-22 18:03:59,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14053 conditions, 8424 events. 1216/8424 cut-off events. For 3420/3686 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 91526 event pairs, 183 based on Foata normal form. 20/7707 useless extension candidates. Maximal degree in co-relation 5658. Up to 893 conditions per place. [2024-11-22 18:03:59,532 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 84 selfloop transitions, 14 changer transitions 1/213 dead transitions. [2024-11-22 18:03:59,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 213 transitions, 872 flow [2024-11-22 18:03:59,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 18:03:59,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-22 18:03:59,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1570 transitions. [2024-11-22 18:03:59,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8431793770139635 [2024-11-22 18:03:59,534 INFO L175 Difference]: Start difference. First operand has 158 places, 147 transitions, 466 flow. Second operand 14 states and 1570 transitions. [2024-11-22 18:03:59,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 213 transitions, 872 flow [2024-11-22 18:03:59,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 213 transitions, 860 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-22 18:03:59,542 INFO L231 Difference]: Finished difference. Result has 173 places, 151 transitions, 521 flow [2024-11-22 18:03:59,542 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=521, PETRI_PLACES=173, PETRI_TRANSITIONS=151} [2024-11-22 18:03:59,542 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 37 predicate places. [2024-11-22 18:03:59,543 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 151 transitions, 521 flow [2024-11-22 18:03:59,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 107.21052631578948) internal successors, (2037), 19 states have internal predecessors, (2037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:59,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:03:59,544 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:03:59,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 18:03:59,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:03:59,744 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:03:59,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:03:59,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1275886185, now seen corresponding path program 1 times [2024-11-22 18:03:59,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:03:59,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824209713] [2024-11-22 18:03:59,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:03:59,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:03:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:03:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-22 18:03:59,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:03:59,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824209713] [2024-11-22 18:03:59,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824209713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:03:59,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:03:59,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:03:59,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276761680] [2024-11-22 18:03:59,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:03:59,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:03:59,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:03:59,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:03:59,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:03:59,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-22 18:03:59,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 151 transitions, 521 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:03:59,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:03:59,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-22 18:03:59,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:04:00,415 INFO L124 PetriNetUnfolderBase]: 883/5710 cut-off events. [2024-11-22 18:04:00,415 INFO L125 PetriNetUnfolderBase]: For 4246/4342 co-relation queries the response was YES. [2024-11-22 18:04:00,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10775 conditions, 5710 events. 883/5710 cut-off events. For 4246/4342 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 62597 event pairs, 677 based on Foata normal form. 4/5205 useless extension candidates. Maximal degree in co-relation 9961. Up to 1476 conditions per place. [2024-11-22 18:04:00,457 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 30 selfloop transitions, 4 changer transitions 0/157 dead transitions. [2024-11-22 18:04:00,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 157 transitions, 616 flow [2024-11-22 18:04:00,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:04:00,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:04:00,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-11-22 18:04:00,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8771929824561403 [2024-11-22 18:04:00,459 INFO L175 Difference]: Start difference. First operand has 173 places, 151 transitions, 521 flow. Second operand 3 states and 350 transitions. [2024-11-22 18:04:00,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 157 transitions, 616 flow [2024-11-22 18:04:00,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 157 transitions, 598 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-22 18:04:00,477 INFO L231 Difference]: Finished difference. Result has 170 places, 154 transitions, 539 flow [2024-11-22 18:04:00,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=539, PETRI_PLACES=170, PETRI_TRANSITIONS=154} [2024-11-22 18:04:00,478 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 34 predicate places. [2024-11-22 18:04:00,478 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 154 transitions, 539 flow [2024-11-22 18:04:00,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:04:00,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:04:00,479 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:04:00,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 18:04:00,479 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:04:00,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:04:00,479 INFO L85 PathProgramCache]: Analyzing trace with hash 567923831, now seen corresponding path program 1 times [2024-11-22 18:04:00,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:04:00,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064071133] [2024-11-22 18:04:00,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:04:00,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:04:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:04:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-22 18:04:00,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:04:00,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064071133] [2024-11-22 18:04:00,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064071133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:04:00,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:04:00,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:04:00,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763316705] [2024-11-22 18:04:00,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:04:00,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:04:00,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:04:00,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:04:00,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:04:00,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 133 [2024-11-22 18:04:00,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 154 transitions, 539 flow. Second operand has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:04:00,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:04:00,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 133 [2024-11-22 18:04:00,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:04:01,884 INFO L124 PetriNetUnfolderBase]: 2726/11410 cut-off events. [2024-11-22 18:04:01,884 INFO L125 PetriNetUnfolderBase]: For 5193/5497 co-relation queries the response was YES. [2024-11-22 18:04:01,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22042 conditions, 11410 events. 2726/11410 cut-off events. For 5193/5497 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 124844 event pairs, 1342 based on Foata normal form. 0/10706 useless extension candidates. Maximal degree in co-relation 19751. Up to 2509 conditions per place. [2024-11-22 18:04:01,978 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 59 selfloop transitions, 6 changer transitions 0/185 dead transitions. [2024-11-22 18:04:01,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 185 transitions, 763 flow [2024-11-22 18:04:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:04:01,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 18:04:01,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 653 transitions. [2024-11-22 18:04:01,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.818295739348371 [2024-11-22 18:04:01,980 INFO L175 Difference]: Start difference. First operand has 170 places, 154 transitions, 539 flow. Second operand 6 states and 653 transitions. [2024-11-22 18:04:01,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 185 transitions, 763 flow [2024-11-22 18:04:02,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 185 transitions, 749 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-22 18:04:02,021 INFO L231 Difference]: Finished difference. Result has 172 places, 153 transitions, 535 flow [2024-11-22 18:04:02,021 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=535, PETRI_PLACES=172, PETRI_TRANSITIONS=153} [2024-11-22 18:04:02,022 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 36 predicate places. [2024-11-22 18:04:02,022 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 153 transitions, 535 flow [2024-11-22 18:04:02,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 100.66666666666667) internal successors, (604), 6 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:04:02,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:04:02,023 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:04:02,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 18:04:02,023 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:04:02,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:04:02,023 INFO L85 PathProgramCache]: Analyzing trace with hash -169137220, now seen corresponding path program 1 times [2024-11-22 18:04:02,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:04:02,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719588009] [2024-11-22 18:04:02,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:04:02,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:04:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:04:02,209 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 97 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:04:02,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:04:02,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719588009] [2024-11-22 18:04:02,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719588009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:04:02,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129912856] [2024-11-22 18:04:02,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:04:02,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:04:02,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:04:02,213 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:04:02,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 18:04:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:04:02,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 18:04:02,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:04:02,614 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:04:02,615 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 18:04:02,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129912856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:04:02,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 18:04:02,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 21 [2024-11-22 18:04:02,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973454527] [2024-11-22 18:04:02,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:04:02,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 18:04:02,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:04:02,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 18:04:02,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2024-11-22 18:04:02,710 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 133 [2024-11-22 18:04:02,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 153 transitions, 535 flow. Second operand has 12 states, 12 states have (on average 108.0) internal successors, (1296), 12 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:04:02,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:04:02,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 133 [2024-11-22 18:04:02,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:04:03,831 INFO L124 PetriNetUnfolderBase]: 1122/7497 cut-off events. [2024-11-22 18:04:03,831 INFO L125 PetriNetUnfolderBase]: For 4525/4761 co-relation queries the response was YES. [2024-11-22 18:04:03,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14207 conditions, 7497 events. 1122/7497 cut-off events. For 4525/4761 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 80005 event pairs, 170 based on Foata normal form. 48/7001 useless extension candidates. Maximal degree in co-relation 5022. Up to 572 conditions per place. [2024-11-22 18:04:03,891 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 89 selfloop transitions, 16 changer transitions 8/229 dead transitions. [2024-11-22 18:04:03,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 229 transitions, 982 flow [2024-11-22 18:04:03,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 18:04:03,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-22 18:04:03,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1810 transitions. [2024-11-22 18:04:03,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8505639097744361 [2024-11-22 18:04:03,898 INFO L175 Difference]: Start difference. First operand has 172 places, 153 transitions, 535 flow. Second operand 16 states and 1810 transitions. [2024-11-22 18:04:03,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 229 transitions, 982 flow [2024-11-22 18:04:03,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 229 transitions, 962 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-22 18:04:03,915 INFO L231 Difference]: Finished difference. Result has 177 places, 151 transitions, 532 flow [2024-11-22 18:04:03,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=532, PETRI_PLACES=177, PETRI_TRANSITIONS=151} [2024-11-22 18:04:03,915 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 41 predicate places. [2024-11-22 18:04:03,915 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 151 transitions, 532 flow [2024-11-22 18:04:03,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 108.0) internal successors, (1296), 12 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:04:03,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:04:03,916 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:04:03,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 18:04:04,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:04:04,117 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:04:04,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:04:04,117 INFO L85 PathProgramCache]: Analyzing trace with hash 651977579, now seen corresponding path program 1 times [2024-11-22 18:04:04,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:04:04,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233503350] [2024-11-22 18:04:04,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:04:04,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:04:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:04:04,210 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-22 18:04:04,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:04:04,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233503350] [2024-11-22 18:04:04,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233503350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:04:04,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:04:04,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:04:04,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394701869] [2024-11-22 18:04:04,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:04:04,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:04:04,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:04:04,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:04:04,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:04:04,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2024-11-22 18:04:04,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 151 transitions, 532 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:04:04,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:04:04,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2024-11-22 18:04:04,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:04:05,288 INFO L124 PetriNetUnfolderBase]: 1353/8934 cut-off events. [2024-11-22 18:04:05,288 INFO L125 PetriNetUnfolderBase]: For 5628/5712 co-relation queries the response was YES. [2024-11-22 18:04:05,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17244 conditions, 8934 events. 1353/8934 cut-off events. For 5628/5712 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 106336 event pairs, 605 based on Foata normal form. 0/8374 useless extension candidates. Maximal degree in co-relation 16459. Up to 1591 conditions per place. [2024-11-22 18:04:05,347 INFO L140 encePairwiseOnDemand]: 126/133 looper letters, 30 selfloop transitions, 9 changer transitions 1/164 dead transitions. [2024-11-22 18:04:05,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 164 transitions, 666 flow [2024-11-22 18:04:05,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:04:05,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 18:04:05,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2024-11-22 18:04:05,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2024-11-22 18:04:05,348 INFO L175 Difference]: Start difference. First operand has 177 places, 151 transitions, 532 flow. Second operand 3 states and 361 transitions. [2024-11-22 18:04:05,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 164 transitions, 666 flow [2024-11-22 18:04:05,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 164 transitions, 612 flow, removed 3 selfloop flow, removed 17 redundant places. [2024-11-22 18:04:05,438 INFO L231 Difference]: Finished difference. Result has 164 places, 155 transitions, 554 flow [2024-11-22 18:04:05,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=164, PETRI_TRANSITIONS=155} [2024-11-22 18:04:05,439 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 28 predicate places. [2024-11-22 18:04:05,439 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 155 transitions, 554 flow [2024-11-22 18:04:05,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:04:05,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:04:05,440 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:04:05,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-22 18:04:05,440 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:04:05,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:04:05,440 INFO L85 PathProgramCache]: Analyzing trace with hash -651162024, now seen corresponding path program 1 times [2024-11-22 18:04:05,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:04:05,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481404891] [2024-11-22 18:04:05,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:04:05,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:04:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:04:05,588 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-22 18:04:05,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:04:05,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481404891] [2024-11-22 18:04:05,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481404891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:04:05,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010196614] [2024-11-22 18:04:05,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:04:05,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:04:05,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:04:05,591 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:04:05,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 18:04:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:04:05,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 18:04:05,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:04:05,859 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-22 18:04:05,859 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:04:05,999 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-22 18:04:05,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010196614] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:04:06,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:04:06,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-22 18:04:06,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316263296] [2024-11-22 18:04:06,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:04:06,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 18:04:06,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:04:06,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 18:04:06,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-22 18:04:06,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 133 [2024-11-22 18:04:06,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 155 transitions, 554 flow. Second operand has 12 states, 12 states have (on average 108.33333333333333) internal successors, (1300), 12 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:04:06,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 18:04:06,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 133 [2024-11-22 18:04:06,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 18:04:06,578 INFO L124 PetriNetUnfolderBase]: 1050/4174 cut-off events. [2024-11-22 18:04:06,579 INFO L125 PetriNetUnfolderBase]: For 1809/1831 co-relation queries the response was YES. [2024-11-22 18:04:06,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7772 conditions, 4174 events. 1050/4174 cut-off events. For 1809/1831 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 35456 event pairs, 97 based on Foata normal form. 128/4263 useless extension candidates. Maximal degree in co-relation 7099. Up to 518 conditions per place. [2024-11-22 18:04:06,602 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 88 selfloop transitions, 10 changer transitions 17/235 dead transitions. [2024-11-22 18:04:06,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 235 transitions, 1014 flow [2024-11-22 18:04:06,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 18:04:06,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 18:04:06,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1159 transitions. [2024-11-22 18:04:06,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8714285714285714 [2024-11-22 18:04:06,604 INFO L175 Difference]: Start difference. First operand has 164 places, 155 transitions, 554 flow. Second operand 10 states and 1159 transitions. [2024-11-22 18:04:06,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 235 transitions, 1014 flow [2024-11-22 18:04:06,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 235 transitions, 996 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 18:04:06,609 INFO L231 Difference]: Finished difference. Result has 174 places, 152 transitions, 554 flow [2024-11-22 18:04:06,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=554, PETRI_PLACES=174, PETRI_TRANSITIONS=152} [2024-11-22 18:04:06,610 INFO L277 CegarLoopForPetriNet]: 136 programPoint places, 38 predicate places. [2024-11-22 18:04:06,610 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 152 transitions, 554 flow [2024-11-22 18:04:06,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 108.33333333333333) internal successors, (1300), 12 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:04:06,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 18:04:06,610 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:04:06,617 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 18:04:06,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-22 18:04:06,815 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-22 18:04:06,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:04:06,815 INFO L85 PathProgramCache]: Analyzing trace with hash 603650889, now seen corresponding path program 1 times [2024-11-22 18:04:06,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:04:06,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583287024] [2024-11-22 18:04:06,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:04:06,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:04:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:04:06,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 18:04:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 18:04:06,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 18:04:06,874 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 18:04:06,874 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-11-22 18:04:06,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-22 18:04:06,874 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-22 18:04:06,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-22 18:04:06,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-22 18:04:06,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-22 18:04:06,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-22 18:04:06,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-22 18:04:06,875 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-22 18:04:06,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-22 18:04:06,875 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:04:06,977 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2024-11-22 18:04:06,977 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 18:04:06,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 06:04:06 BasicIcfg [2024-11-22 18:04:06,983 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 18:04:06,983 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 18:04:06,984 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 18:04:06,984 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 18:04:06,984 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:03:19" (3/4) ... [2024-11-22 18:04:06,985 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-22 18:04:07,093 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 18:04:07,093 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 18:04:07,093 INFO L158 Benchmark]: Toolchain (without parser) took 49490.65ms. Allocated memory was 190.8MB in the beginning and 11.2GB in the end (delta: 11.0GB). Free memory was 160.8MB in the beginning and 6.8GB in the end (delta: -6.6GB). Peak memory consumption was 4.4GB. Max. memory is 16.1GB. [2024-11-22 18:04:07,093 INFO L158 Benchmark]: CDTParser took 4.12ms. Allocated memory is still 130.0MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 18:04:07,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 705.77ms. Allocated memory is still 190.8MB. Free memory was 160.6MB in the beginning and 140.0MB in the end (delta: 20.6MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2024-11-22 18:04:07,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.27ms. Allocated memory is still 190.8MB. Free memory was 140.0MB in the beginning and 138.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 18:04:07,094 INFO L158 Benchmark]: Boogie Preprocessor took 57.87ms. Allocated memory is still 190.8MB. Free memory was 138.0MB in the beginning and 135.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 18:04:07,094 INFO L158 Benchmark]: RCFGBuilder took 651.16ms. Allocated memory is still 190.8MB. Free memory was 135.9MB in the beginning and 120.5MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-22 18:04:07,094 INFO L158 Benchmark]: TraceAbstraction took 47891.66ms. Allocated memory was 190.8MB in the beginning and 11.2GB in the end (delta: 11.0GB). Free memory was 119.9MB in the beginning and 6.9GB in the end (delta: -6.7GB). Peak memory consumption was 4.3GB. Max. memory is 16.1GB. [2024-11-22 18:04:07,094 INFO L158 Benchmark]: Witness Printer took 109.52ms. Allocated memory is still 11.2GB. Free memory was 6.9GB in the beginning and 6.8GB in the end (delta: 66.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-22 18:04:07,095 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.12ms. Allocated memory is still 130.0MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 705.77ms. Allocated memory is still 190.8MB. Free memory was 160.6MB in the beginning and 140.0MB in the end (delta: 20.6MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.27ms. Allocated memory is still 190.8MB. Free memory was 140.0MB in the beginning and 138.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.87ms. Allocated memory is still 190.8MB. Free memory was 138.0MB in the beginning and 135.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 651.16ms. Allocated memory is still 190.8MB. Free memory was 135.9MB in the beginning and 120.5MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 47891.66ms. Allocated memory was 190.8MB in the beginning and 11.2GB in the end (delta: 11.0GB). Free memory was 119.9MB in the beginning and 6.9GB in the end (delta: -6.7GB). Peak memory consumption was 4.3GB. Max. memory is 16.1GB. * Witness Printer took 109.52ms. Allocated memory is still 11.2GB. Free memory was 6.9GB in the beginning and 6.8GB in the end (delta: 66.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 685]: Data race detected Data race detected The following path leads to a data race: [L681] 0 int data = 0; VAL [data=0] [L682] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}] [L690] 0 int threads_total = 4; VAL [data=0, data_mutex={1:0}, threads_total=4] [L691] 0 pthread_t tids[4]; VAL [data=0, data_mutex={1:0}, threads_total=4, tids={17:0}] [L692] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L692] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L693] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L692] 0 i++ VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L692] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L693] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L692] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L692] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L693] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L692] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L692] COND TRUE 0 i < threads_total VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L693] 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L693] FCALL, FORK 0 pthread_create(&tids[i], ((void *)0), &thread, ((void *)0)) VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L685] 1 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 2 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 3 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 3 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L685] 4 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L687] 3 return ((void *)0); VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L692] 0 i++ VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, threads_total=4, tids={17:0}] [L692] COND FALSE 0 !(i < threads_total) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=4, threads_total=4, tids={17:0}] [L695] 0 int i = 0; VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L687] 1 return ((void *)0); VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L695] COND TRUE 0 i < threads_total - 1 VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L696] EXPR 0 tids[i] VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L696] 0 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L696] FCALL, JOIN 1 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_total=4, tids={17:0}] [L695] 0 i++ VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L695] COND TRUE 0 i < threads_total - 1 VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L696] EXPR 0 tids[i] VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L696] 0 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L687] 2 return ((void *)0); VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] [L696] FCALL, JOIN 2 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_total=4, tids={17:0}] [L695] 0 i++ VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L695] COND TRUE 0 i < threads_total - 1 VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L696] EXPR 0 tids[i] VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L696] 0 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L696] FCALL, JOIN 3 pthread_join(tids[i], ((void *)0)) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=2, threads_total=4, tids={17:0}] [L695] 0 i++ VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L695] COND FALSE 0 !(i < threads_total - 1) VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=3, threads_total=4, tids={17:0}] [L698] 0 return data; VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_total=4, tids={17:0}] [L685] 4 data = __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, \result={0:0}, arg={0:0}, data=0, data_mutex={1:0}] Now there is a data race on ~data~0 between C: return data; [698] and C: data = __VERIFIER_nondet_int() [685] - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 342 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 67 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 521 IncrementalHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 9 mSDtfsCounter, 521 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=193occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 240 ConstructedInterpolants, 0 QuantifiedInterpolants, 709 SizeOfPredicates, 4 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 1/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 111 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 436 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 308 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 662 IncrementalHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 17 mSDtfsCounter, 662 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=258occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 291 ConstructedInterpolants, 0 QuantifiedInterpolants, 762 SizeOfPredicates, 4 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 12/15 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 128 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.4s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 850 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 675 mSDsluCounter, 185 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 147 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1261 IncrementalHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 38 mSDtfsCounter, 1261 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 282 GetRequests, 225 SyntacticMatches, 6 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=6, InterpolantAutomatonStates: 49, 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, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 615 NumberOfCodeBlocks, 615 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 643 ConstructedInterpolants, 0 QuantifiedInterpolants, 1924 SizeOfPredicates, 12 NumberOfNonLiveVariables, 326 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 62/227 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 145 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 30.9s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1607 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1318 mSDsluCounter, 398 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 297 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2679 IncrementalHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 101 mSDtfsCounter, 2679 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 665 GetRequests, 558 SyntacticMatches, 7 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred in iteration=13, InterpolantAutomatonStates: 88, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1451 NumberOfCodeBlocks, 1451 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1494 ConstructedInterpolants, 0 QuantifiedInterpolants, 4486 SizeOfPredicates, 26 NumberOfNonLiveVariables, 933 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 920/1137 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-22 18:04:07,119 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE