./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/09_fmaxsym-zero.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/09_fmaxsym-zero.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 41cf9d90b654ba629ed26494b45977a61fd5035aced9f092d4e43a94133522bd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:13:16,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:13:16,436 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:13:16,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:13:16,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:13:16,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:13:16,483 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:13:16,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:13:16,484 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:13:16,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:13:16,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:13:16,485 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:13:16,486 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:13:16,486 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:13:16,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:13:16,490 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:13:16,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:13:16,491 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:13:16,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:13:16,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:13:16,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:13:16,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:13:16,492 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:13:16,492 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:13:16,492 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:13:16,492 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:13:16,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:13:16,493 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:13:16,493 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:13:16,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:13:16,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:13:16,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:13:16,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:13:16,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:13:16,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:13:16,494 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:13:16,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:13:16,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:13:16,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:13:16,494 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:13:16,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:13:16,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41cf9d90b654ba629ed26494b45977a61fd5035aced9f092d4e43a94133522bd [2024-11-16 23:13:16,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:13:16,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:13:16,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:13:16,846 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:13:16,846 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:13:16,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/09_fmaxsym-zero.i [2024-11-16 23:13:18,284 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:13:18,501 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:13:18,501 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/09_fmaxsym-zero.i [2024-11-16 23:13:18,512 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68856140/7c10040e5cbb4af19ade6057d4ebf7c1/FLAG4fa58abec [2024-11-16 23:13:18,523 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f68856140/7c10040e5cbb4af19ade6057d4ebf7c1 [2024-11-16 23:13:18,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:13:18,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:13:18,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:13:18,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:13:18,531 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:13:18,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:18,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b2fd4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18, skipping insertion in model container [2024-11-16 23:13:18,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:18,581 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:13:18,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:13:18,843 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:13:18,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:13:18,935 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:13:18,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18 WrapperNode [2024-11-16 23:13:18,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:13:18,938 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:13:18,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:13:18,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:13:18,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:18,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:18,982 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 86 [2024-11-16 23:13:18,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:13:18,983 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:13:18,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:13:18,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:13:18,990 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:18,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:18,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:18,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:19,006 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:19,007 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:19,008 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:19,012 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:19,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:13:19,014 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:13:19,014 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:13:19,014 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:13:19,015 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18" (1/1) ... [2024-11-16 23:13:19,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:13:19,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:13:19,051 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) [2024-11-16 23:13:19,053 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 [2024-11-16 23:13:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:13:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-16 23:13:19,086 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-16 23:13:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:13:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:13:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:13:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:13:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:13:19,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:13:19,088 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:13:19,178 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:13:19,180 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:13:19,331 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:13:19,332 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:13:19,363 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:13:19,364 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:13:19,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:13:19 BoogieIcfgContainer [2024-11-16 23:13:19,364 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:13:19,366 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:13:19,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:13:19,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:13:19,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:13:18" (1/3) ... [2024-11-16 23:13:19,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b481fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:13:19, skipping insertion in model container [2024-11-16 23:13:19,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:18" (2/3) ... [2024-11-16 23:13:19,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b481fbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:13:19, skipping insertion in model container [2024-11-16 23:13:19,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:13:19" (3/3) ... [2024-11-16 23:13:19,371 INFO L112 eAbstractionObserver]: Analyzing ICFG 09_fmaxsym-zero.i [2024-11-16 23:13:19,386 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:13:19,387 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-16 23:13:19,387 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:13:19,440 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:13:19,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 104 transitions, 212 flow [2024-11-16 23:13:19,517 INFO L124 PetriNetUnfolderBase]: 8/114 cut-off events. [2024-11-16 23:13:19,517 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:13:19,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 114 events. 8/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 77. Up to 4 conditions per place. [2024-11-16 23:13:19,523 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 104 transitions, 212 flow [2024-11-16 23:13:19,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 104 transitions, 212 flow [2024-11-16 23:13:19,536 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:13:19,544 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;@42b247a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:13:19,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-16 23:13:19,566 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:13:19,566 INFO L124 PetriNetUnfolderBase]: 2/56 cut-off events. [2024-11-16 23:13:19,566 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:13:19,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:19,567 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:13:19,567 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-16 23:13:19,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:19,573 INFO L85 PathProgramCache]: Analyzing trace with hash -936755191, now seen corresponding path program 1 times [2024-11-16 23:13:19,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:19,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173573359] [2024-11-16 23:13:19,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:19,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:19,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:13:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:19,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:13:19,751 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:13:19,754 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-16 23:13:19,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-16 23:13:19,755 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-16 23:13:19,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-16 23:13:19,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-16 23:13:19,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-16 23:13:19,756 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-16 23:13:19,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-16 23:13:19,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-16 23:13:19,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:13:19,758 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 23:13:19,760 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:13:19,760 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:13:19,809 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:13:19,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 170 transitions, 350 flow [2024-11-16 23:13:19,886 INFO L124 PetriNetUnfolderBase]: 15/192 cut-off events. [2024-11-16 23:13:19,887 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:13:19,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 192 events. 15/192 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 321 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 142. Up to 6 conditions per place. [2024-11-16 23:13:19,889 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 170 transitions, 350 flow [2024-11-16 23:13:19,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 170 transitions, 350 flow [2024-11-16 23:13:19,892 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:13:19,892 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;@42b247a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:13:19,893 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-16 23:13:19,902 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:13:19,903 INFO L124 PetriNetUnfolderBase]: 4/87 cut-off events. [2024-11-16 23:13:19,903 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:13:19,903 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:19,903 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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] [2024-11-16 23:13:19,904 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-16 23:13:19,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:19,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1929237967, now seen corresponding path program 1 times [2024-11-16 23:13:19,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:19,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933435595] [2024-11-16 23:13:19,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:19,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:19,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:13:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:20,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:13:20,007 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:13:20,008 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-16 23:13:20,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-16 23:13:20,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-16 23:13:20,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-16 23:13:20,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-16 23:13:20,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-16 23:13:20,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2024-11-16 23:13:20,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-16 23:13:20,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-16 23:13:20,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-16 23:13:20,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-16 23:13:20,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-16 23:13:20,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-16 23:13:20,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:13:20,011 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 23:13:20,011 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:13:20,011 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:13:20,070 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:13:20,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 224 places, 236 transitions, 490 flow [2024-11-16 23:13:20,114 INFO L124 PetriNetUnfolderBase]: 22/270 cut-off events. [2024-11-16 23:13:20,116 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-16 23:13:20,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 270 events. 22/270 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 675 event pairs, 0 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 207. Up to 8 conditions per place. [2024-11-16 23:13:20,122 INFO L82 GeneralOperation]: Start removeDead. Operand has 224 places, 236 transitions, 490 flow [2024-11-16 23:13:20,127 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 236 transitions, 490 flow [2024-11-16 23:13:20,128 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:13:20,131 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;@42b247a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:13:20,131 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-16 23:13:20,152 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:13:20,153 INFO L124 PetriNetUnfolderBase]: 7/130 cut-off events. [2024-11-16 23:13:20,153 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-16 23:13:20,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:20,154 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 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] [2024-11-16 23:13:20,154 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-16 23:13:20,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:20,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1336062558, now seen corresponding path program 1 times [2024-11-16 23:13:20,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:20,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847678892] [2024-11-16 23:13:20,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:20,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:20,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:13:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:20,211 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:13:20,211 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:13:20,211 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-16 23:13:20,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-11-16 23:13:20,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-11-16 23:13:20,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-11-16 23:13:20,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2024-11-16 23:13:20,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-11-16 23:13:20,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2024-11-16 23:13:20,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-11-16 23:13:20,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-11-16 23:13:20,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-11-16 23:13:20,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-11-16 23:13:20,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-11-16 23:13:20,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-11-16 23:13:20,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-11-16 23:13:20,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-11-16 23:13:20,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-11-16 23:13:20,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-11-16 23:13:20,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:13:20,214 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 23:13:20,215 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:13:20,217 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-16 23:13:20,272 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:13:20,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 286 places, 302 transitions, 632 flow [2024-11-16 23:13:20,345 INFO L124 PetriNetUnfolderBase]: 29/348 cut-off events. [2024-11-16 23:13:20,345 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-16 23:13:20,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 348 events. 29/348 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1034 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 278. Up to 10 conditions per place. [2024-11-16 23:13:20,354 INFO L82 GeneralOperation]: Start removeDead. Operand has 286 places, 302 transitions, 632 flow [2024-11-16 23:13:20,359 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 286 places, 302 transitions, 632 flow [2024-11-16 23:13:20,361 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:13:20,362 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;@42b247a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:13:20,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-16 23:13:20,402 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:13:20,402 INFO L124 PetriNetUnfolderBase]: 7/134 cut-off events. [2024-11-16 23:13:20,403 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-16 23:13:20,403 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:20,403 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:13:20,403 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:13:20,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:20,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1685707383, now seen corresponding path program 1 times [2024-11-16 23:13:20,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:20,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499974001] [2024-11-16 23:13:20,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:20,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:20,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:13:20,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:20,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499974001] [2024-11-16 23:13:20,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499974001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:20,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:20,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:13:20,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924151735] [2024-11-16 23:13:20,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:20,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:13:20,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:20,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:13:20,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:13:21,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 302 [2024-11-16 23:13:21,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 302 transitions, 632 flow. Second operand has 6 states, 6 states have (on average 257.6666666666667) internal successors, (1546), 6 states have internal predecessors, (1546), 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) [2024-11-16 23:13:21,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:21,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 302 [2024-11-16 23:13:21,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:22,831 INFO L124 PetriNetUnfolderBase]: 1211/7560 cut-off events. [2024-11-16 23:13:22,832 INFO L125 PetriNetUnfolderBase]: For 1768/1768 co-relation queries the response was YES. [2024-11-16 23:13:22,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9883 conditions, 7560 events. 1211/7560 cut-off events. For 1768/1768 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 81414 event pairs, 447 based on Foata normal form. 2843/9473 useless extension candidates. Maximal degree in co-relation 2875. Up to 689 conditions per place. [2024-11-16 23:13:22,937 INFO L140 encePairwiseOnDemand]: 278/302 looper letters, 54 selfloop transitions, 5 changer transitions 0/308 dead transitions. [2024-11-16 23:13:22,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 308 transitions, 846 flow [2024-11-16 23:13:22,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:13:22,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:13:22,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1670 transitions. [2024-11-16 23:13:22,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9216335540838853 [2024-11-16 23:13:22,955 INFO L175 Difference]: Start difference. First operand has 286 places, 302 transitions, 632 flow. Second operand 6 states and 1670 transitions. [2024-11-16 23:13:22,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 308 transitions, 846 flow [2024-11-16 23:13:22,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 308 transitions, 816 flow, removed 15 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:22,966 INFO L231 Difference]: Finished difference. Result has 278 places, 272 transitions, 576 flow [2024-11-16 23:13:22,968 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=576, PETRI_PLACES=278, PETRI_TRANSITIONS=272} [2024-11-16 23:13:22,971 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, -8 predicate places. [2024-11-16 23:13:22,972 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 272 transitions, 576 flow [2024-11-16 23:13:22,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.6666666666667) internal successors, (1546), 6 states have internal predecessors, (1546), 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) [2024-11-16 23:13:22,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:22,973 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:13:22,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:13:22,973 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:13:22,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:22,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1364294970, now seen corresponding path program 1 times [2024-11-16 23:13:22,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:22,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459096730] [2024-11-16 23:13:22,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:22,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:23,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:13:23,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:23,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459096730] [2024-11-16 23:13:23,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459096730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:23,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:23,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:13:23,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559654052] [2024-11-16 23:13:23,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:23,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:13:23,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:23,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:13:23,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:13:23,049 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 302 [2024-11-16 23:13:23,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 272 transitions, 576 flow. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 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) [2024-11-16 23:13:23,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:23,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 302 [2024-11-16 23:13:23,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:45,748 INFO L124 PetriNetUnfolderBase]: 49916/136998 cut-off events. [2024-11-16 23:13:45,749 INFO L125 PetriNetUnfolderBase]: For 4933/4933 co-relation queries the response was YES. [2024-11-16 23:13:47,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209985 conditions, 136998 events. 49916/136998 cut-off events. For 4933/4933 co-relation queries the response was YES. Maximal size of possible extension queue 4395. Compared 1944837 event pairs, 15673 based on Foata normal form. 0/116319 useless extension candidates. Maximal degree in co-relation 195421. Up to 45530 conditions per place. [2024-11-16 23:13:48,440 INFO L140 encePairwiseOnDemand]: 274/302 looper letters, 51 selfloop transitions, 20 changer transitions 0/303 dead transitions. [2024-11-16 23:13:48,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 303 transitions, 795 flow [2024-11-16 23:13:48,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:13:48,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:13:48,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 799 transitions. [2024-11-16 23:13:48,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8818984547461368 [2024-11-16 23:13:48,446 INFO L175 Difference]: Start difference. First operand has 278 places, 272 transitions, 576 flow. Second operand 3 states and 799 transitions. [2024-11-16 23:13:48,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 303 transitions, 795 flow [2024-11-16 23:13:48,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 303 transitions, 785 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:13:48,481 INFO L231 Difference]: Finished difference. Result has 277 places, 292 transitions, 742 flow [2024-11-16 23:13:48,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=302, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=277, PETRI_TRANSITIONS=292} [2024-11-16 23:13:48,482 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, -9 predicate places. [2024-11-16 23:13:48,483 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 292 transitions, 742 flow [2024-11-16 23:13:48,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 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) [2024-11-16 23:13:48,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:48,483 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 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] [2024-11-16 23:13:48,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:13:48,484 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:13:48,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:48,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1070059120, now seen corresponding path program 1 times [2024-11-16 23:13:48,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:48,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995912121] [2024-11-16 23:13:48,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:48,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:48,494 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:13:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:48,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:13:48,504 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:13:48,504 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-16 23:13:48,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-16 23:13:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-16 23:13:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-16 23:13:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-16 23:13:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-16 23:13:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2024-11-16 23:13:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-16 23:13:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-16 23:13:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-16 23:13:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-16 23:13:48,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-16 23:13:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-16 23:13:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-16 23:13:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-16 23:13:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-16 23:13:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-16 23:13:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-16 23:13:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-16 23:13:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-16 23:13:48,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-16 23:13:48,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:13:48,506 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-16 23:13:48,507 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:13:48,507 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-16 23:13:48,601 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:13:48,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 348 places, 368 transitions, 776 flow [2024-11-16 23:13:48,656 INFO L124 PetriNetUnfolderBase]: 36/426 cut-off events. [2024-11-16 23:13:48,656 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-16 23:13:48,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 426 events. 36/426 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1431 event pairs, 0 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 361. Up to 12 conditions per place. [2024-11-16 23:13:48,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 348 places, 368 transitions, 776 flow [2024-11-16 23:13:48,670 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 348 places, 368 transitions, 776 flow [2024-11-16 23:13:48,671 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:13:48,671 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;@42b247a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:13:48,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-16 23:13:48,681 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:13:48,681 INFO L124 PetriNetUnfolderBase]: 8/140 cut-off events. [2024-11-16 23:13:48,681 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-16 23:13:48,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:48,681 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:13:48,682 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-16 23:13:48,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:48,682 INFO L85 PathProgramCache]: Analyzing trace with hash 344661653, now seen corresponding path program 1 times [2024-11-16 23:13:48,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:48,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64057027] [2024-11-16 23:13:48,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:48,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:48,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:13:48,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:48,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64057027] [2024-11-16 23:13:48,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64057027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:48,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:48,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:13:48,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351180083] [2024-11-16 23:13:48,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:48,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:13:48,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:48,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:13:48,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:13:49,181 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 368 [2024-11-16 23:13:49,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 368 transitions, 776 flow. Second operand has 6 states, 6 states have (on average 315.6666666666667) internal successors, (1894), 6 states have internal predecessors, (1894), 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) [2024-11-16 23:13:49,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:49,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 368 [2024-11-16 23:13:49,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:54,859 INFO L124 PetriNetUnfolderBase]: 4694/24030 cut-off events. [2024-11-16 23:13:54,860 INFO L125 PetriNetUnfolderBase]: For 8329/8329 co-relation queries the response was YES. [2024-11-16 23:13:55,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32591 conditions, 24030 events. 4694/24030 cut-off events. For 8329/8329 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 310761 event pairs, 1824 based on Foata normal form. 10610/31769 useless extension candidates. Maximal degree in co-relation 9823. Up to 2552 conditions per place. [2024-11-16 23:13:55,476 INFO L140 encePairwiseOnDemand]: 340/368 looper letters, 69 selfloop transitions, 5 changer transitions 0/380 dead transitions. [2024-11-16 23:13:55,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 380 transitions, 1076 flow [2024-11-16 23:13:55,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:13:55,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:13:55,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2053 transitions. [2024-11-16 23:13:55,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9298007246376812 [2024-11-16 23:13:55,481 INFO L175 Difference]: Start difference. First operand has 348 places, 368 transitions, 776 flow. Second operand 6 states and 2053 transitions. [2024-11-16 23:13:55,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 380 transitions, 1076 flow [2024-11-16 23:13:55,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 380 transitions, 1016 flow, removed 30 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:55,505 INFO L231 Difference]: Finished difference. Result has 338 places, 332 transitions, 702 flow [2024-11-16 23:13:55,506 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=702, PETRI_PLACES=338, PETRI_TRANSITIONS=332} [2024-11-16 23:13:55,511 INFO L277 CegarLoopForPetriNet]: 348 programPoint places, -10 predicate places. [2024-11-16 23:13:55,512 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 332 transitions, 702 flow [2024-11-16 23:13:55,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 315.6666666666667) internal successors, (1894), 6 states have internal predecessors, (1894), 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) [2024-11-16 23:13:55,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:55,513 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:13:55,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:13:55,513 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-16 23:13:55,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:55,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1638087800, now seen corresponding path program 1 times [2024-11-16 23:13:55,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:55,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710473483] [2024-11-16 23:13:55,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:55,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:55,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:13:55,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:55,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710473483] [2024-11-16 23:13:55,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710473483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:55,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:55,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:13:55,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510842315] [2024-11-16 23:13:55,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:55,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:13:55,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:55,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:13:55,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:13:55,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 368 [2024-11-16 23:13:55,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 332 transitions, 702 flow. Second operand has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 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) [2024-11-16 23:13:55,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:55,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 368 [2024-11-16 23:13:55,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand