./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf.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 5eef73b6b2655059556d731e3a5babc181132142f2417a2cf863165dd8efda84 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:33:47,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:33:47,358 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:33:47,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:33:47,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:33:47,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:33:47,398 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:33:47,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:33:47,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:33:47,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:33:47,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:33:47,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:33:47,401 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:33:47,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:33:47,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:33:47,402 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:33:47,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:33:47,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:33:47,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:33:47,403 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:33:47,403 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:33:47,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:33:47,404 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:33:47,405 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:33:47,405 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:33:47,405 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:33:47,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:33:47,406 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:33:47,406 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:33:47,406 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:33:47,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:33:47,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:33:47,407 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:33:47,408 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:33:47,408 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:33:47,408 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:33:47,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:33:47,409 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:33:47,409 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:33:47,409 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:33:47,410 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:33:47,410 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eef73b6b2655059556d731e3a5babc181132142f2417a2cf863165dd8efda84 [2024-10-13 09:33:47,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:33:47,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:33:47,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:33:47,724 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:33:47,725 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:33:47,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf.i [2024-10-13 09:33:49,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:33:49,555 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:33:49,556 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf.i [2024-10-13 09:33:49,571 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1f869ddd/5646c482aabb4acda9a36c70098cd101/FLAG29b2bec5e [2024-10-13 09:33:49,867 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1f869ddd/5646c482aabb4acda9a36c70098cd101 [2024-10-13 09:33:49,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:33:49,874 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:33:49,875 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:33:49,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:33:49,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:33:49,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:33:49" (1/1) ... [2024-10-13 09:33:49,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@725ea3bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:49, skipping insertion in model container [2024-10-13 09:33:49,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:33:49" (1/1) ... [2024-10-13 09:33:49,938 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:33:50,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:33:50,316 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:33:50,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:33:50,419 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:33:50,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50 WrapperNode [2024-10-13 09:33:50,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:33:50,421 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:33:50,421 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:33:50,421 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:33:50,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50" (1/1) ... [2024-10-13 09:33:50,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50" (1/1) ... [2024-10-13 09:33:50,476 INFO L138 Inliner]: procedures = 172, calls = 22, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 123 [2024-10-13 09:33:50,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:33:50,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:33:50,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:33:50,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:33:50,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50" (1/1) ... [2024-10-13 09:33:50,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50" (1/1) ... [2024-10-13 09:33:50,503 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50" (1/1) ... [2024-10-13 09:33:50,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50" (1/1) ... [2024-10-13 09:33:50,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50" (1/1) ... [2024-10-13 09:33:50,525 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50" (1/1) ... [2024-10-13 09:33:50,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50" (1/1) ... [2024-10-13 09:33:50,532 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50" (1/1) ... [2024-10-13 09:33:50,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:33:50,535 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:33:50,535 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:33:50,535 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:33:50,536 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50" (1/1) ... [2024-10-13 09:33:50,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:33:50,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:33:50,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:33:50,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:33:50,628 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-13 09:33:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-13 09:33:50,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 09:33:50,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:33:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:33:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 09:33:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:33:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:33:50,632 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:33:50,759 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:33:50,762 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:33:50,977 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:33:50,977 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:33:51,117 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:33:51,117 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 09:33:51,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:33:51 BoogieIcfgContainer [2024-10-13 09:33:51,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:33:51,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:33:51,123 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:33:51,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:33:51,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:33:49" (1/3) ... [2024-10-13 09:33:51,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa13338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:33:51, skipping insertion in model container [2024-10-13 09:33:51,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:33:50" (2/3) ... [2024-10-13 09:33:51,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa13338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:33:51, skipping insertion in model container [2024-10-13 09:33:51,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:33:51" (3/3) ... [2024-10-13 09:33:51,131 INFO L112 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf.i [2024-10-13 09:33:51,149 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:33:51,150 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2024-10-13 09:33:51,150 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:33:51,193 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:33:51,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 77 transitions, 158 flow [2024-10-13 09:33:51,261 INFO L124 PetriNetUnfolderBase]: 5/86 cut-off events. [2024-10-13 09:33:51,261 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:33:51,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 86 events. 5/86 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 117 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 63. Up to 4 conditions per place. [2024-10-13 09:33:51,269 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 77 transitions, 158 flow [2024-10-13 09:33:51,273 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 77 transitions, 158 flow [2024-10-13 09:33:51,281 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:33:51,289 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;@5a1dd98a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:33:51,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-10-13 09:33:51,298 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:33:51,298 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2024-10-13 09:33:51,298 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:33:51,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:51,299 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] [2024-10-13 09:33:51,300 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-13 09:33:51,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:51,306 INFO L85 PathProgramCache]: Analyzing trace with hash 543607268, now seen corresponding path program 1 times [2024-10-13 09:33:51,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:51,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65327430] [2024-10-13 09:33:51,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:51,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:51,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:51,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:51,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65327430] [2024-10-13 09:33:51,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65327430] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:51,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:51,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:33:51,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172637941] [2024-10-13 09:33:51,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:51,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:33:51,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:51,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:33:51,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:33:51,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 77 [2024-10-13 09:33:51,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 77 transitions, 158 flow. Second operand has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:51,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:51,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 77 [2024-10-13 09:33:51,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:33:51,653 INFO L124 PetriNetUnfolderBase]: 1/58 cut-off events. [2024-10-13 09:33:51,653 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:33:51,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 58 events. 1/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 12/65 useless extension candidates. Maximal degree in co-relation 47. Up to 9 conditions per place. [2024-10-13 09:33:51,655 INFO L140 encePairwiseOnDemand]: 61/77 looper letters, 8 selfloop transitions, 0 changer transitions 0/54 dead transitions. [2024-10-13 09:33:51,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 54 transitions, 128 flow [2024-10-13 09:33:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:33:51,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:33:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 128 transitions. [2024-10-13 09:33:51,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8311688311688312 [2024-10-13 09:33:51,674 INFO L175 Difference]: Start difference. First operand has 76 places, 77 transitions, 158 flow. Second operand 2 states and 128 transitions. [2024-10-13 09:33:51,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 54 transitions, 128 flow [2024-10-13 09:33:51,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 54 transitions, 128 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:33:51,683 INFO L231 Difference]: Finished difference. Result has 57 places, 54 transitions, 112 flow [2024-10-13 09:33:51,686 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=112, PETRI_PLACES=57, PETRI_TRANSITIONS=54} [2024-10-13 09:33:51,692 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, -19 predicate places. [2024-10-13 09:33:51,692 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 54 transitions, 112 flow [2024-10-13 09:33:51,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:51,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:51,693 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] [2024-10-13 09:33:51,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:33:51,694 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-13 09:33:51,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:51,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1579411417, now seen corresponding path program 1 times [2024-10-13 09:33:51,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:51,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870430263] [2024-10-13 09:33:51,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:51,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:51,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:51,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:51,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870430263] [2024-10-13 09:33:51,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870430263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:51,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:51,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:33:51,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471344516] [2024-10-13 09:33:51,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:51,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:33:51,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:51,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:33:51,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:33:51,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 77 [2024-10-13 09:33:51,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:51,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:51,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 77 [2024-10-13 09:33:51,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:33:51,915 INFO L124 PetriNetUnfolderBase]: 0/60 cut-off events. [2024-10-13 09:33:51,916 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:33:51,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 60 events. 0/60 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 0. Up to 10 conditions per place. [2024-10-13 09:33:51,917 INFO L140 encePairwiseOnDemand]: 71/77 looper letters, 11 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2024-10-13 09:33:51,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 140 flow [2024-10-13 09:33:51,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:33:51,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:33:51,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2024-10-13 09:33:51,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.645021645021645 [2024-10-13 09:33:51,921 INFO L175 Difference]: Start difference. First operand has 57 places, 54 transitions, 112 flow. Second operand 3 states and 149 transitions. [2024-10-13 09:33:51,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 140 flow [2024-10-13 09:33:51,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 53 transitions, 140 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:33:51,924 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 116 flow [2024-10-13 09:33:51,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2024-10-13 09:33:51,926 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, -19 predicate places. [2024-10-13 09:33:51,926 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 116 flow [2024-10-13 09:33:51,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:51,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:51,926 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:33:51,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:33:51,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-13 09:33:51,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:51,928 INFO L85 PathProgramCache]: Analyzing trace with hash -10738278, now seen corresponding path program 1 times [2024-10-13 09:33:51,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:51,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478613244] [2024-10-13 09:33:51,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:51,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:33:51,961 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:33:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:33:51,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:33:51,998 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:33:51,999 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-10-13 09:33:52,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-10-13 09:33:52,004 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-10-13 09:33:52,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-10-13 09:33:52,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-10-13 09:33:52,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-10-13 09:33:52,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2024-10-13 09:33:52,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-10-13 09:33:52,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-10-13 09:33:52,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-10-13 09:33:52,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-10-13 09:33:52,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-10-13 09:33:52,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-10-13 09:33:52,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-10-13 09:33:52,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-10-13 09:33:52,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-10-13 09:33:52,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-10-13 09:33:52,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-10-13 09:33:52,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-10-13 09:33:52,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-10-13 09:33:52,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-10-13 09:33:52,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-10-13 09:33:52,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-10-13 09:33:52,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-10-13 09:33:52,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-10-13 09:33:52,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-10-13 09:33:52,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-10-13 09:33:52,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-10-13 09:33:52,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-10-13 09:33:52,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-10-13 09:33:52,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-10-13 09:33:52,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:33:52,012 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-13 09:33:52,016 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:33:52,016 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-13 09:33:52,053 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:33:52,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 130 transitions, 270 flow [2024-10-13 09:33:52,100 INFO L124 PetriNetUnfolderBase]: 9/150 cut-off events. [2024-10-13 09:33:52,102 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 09:33:52,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 150 events. 9/150 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 368 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 115. Up to 6 conditions per place. [2024-10-13 09:33:52,105 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 130 transitions, 270 flow [2024-10-13 09:33:52,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 130 transitions, 270 flow [2024-10-13 09:33:52,110 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:33:52,111 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;@5a1dd98a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:33:52,112 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-10-13 09:33:52,120 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:33:52,124 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2024-10-13 09:33:52,124 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:33:52,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:52,124 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] [2024-10-13 09:33:52,125 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-13 09:33:52,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:52,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1461061988, now seen corresponding path program 1 times [2024-10-13 09:33:52,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:52,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624288259] [2024-10-13 09:33:52,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:52,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:52,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:52,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:52,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:52,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624288259] [2024-10-13 09:33:52,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624288259] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:52,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:52,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:33:52,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723707933] [2024-10-13 09:33:52,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:52,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:33:52,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:52,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:33:52,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:33:52,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 130 [2024-10-13 09:33:52,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 130 transitions, 270 flow. Second operand has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:52,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:52,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 130 [2024-10-13 09:33:52,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:33:52,255 INFO L124 PetriNetUnfolderBase]: 62/332 cut-off events. [2024-10-13 09:33:52,256 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-13 09:33:52,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 332 events. 62/332 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1623 event pairs, 56 based on Foata normal form. 121/412 useless extension candidates. Maximal degree in co-relation 380. Up to 129 conditions per place. [2024-10-13 09:33:52,262 INFO L140 encePairwiseOnDemand]: 100/130 looper letters, 16 selfloop transitions, 0 changer transitions 0/89 dead transitions. [2024-10-13 09:33:52,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 89 transitions, 220 flow [2024-10-13 09:33:52,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:33:52,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:33:52,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 210 transitions. [2024-10-13 09:33:52,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8076923076923077 [2024-10-13 09:33:52,268 INFO L175 Difference]: Start difference. First operand has 128 places, 130 transitions, 270 flow. Second operand 2 states and 210 transitions. [2024-10-13 09:33:52,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 89 transitions, 220 flow [2024-10-13 09:33:52,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 89 transitions, 220 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:33:52,272 INFO L231 Difference]: Finished difference. Result has 93 places, 89 transitions, 188 flow [2024-10-13 09:33:52,272 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=188, PETRI_PLACES=93, PETRI_TRANSITIONS=89} [2024-10-13 09:33:52,274 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, -35 predicate places. [2024-10-13 09:33:52,274 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 89 transitions, 188 flow [2024-10-13 09:33:52,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 83.0) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:52,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:52,275 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] [2024-10-13 09:33:52,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:33:52,275 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-13 09:33:52,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:52,276 INFO L85 PathProgramCache]: Analyzing trace with hash -373715353, now seen corresponding path program 1 times [2024-10-13 09:33:52,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:52,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064908857] [2024-10-13 09:33:52,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:52,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:52,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:52,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064908857] [2024-10-13 09:33:52,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064908857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:52,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:52,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:33:52,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050064982] [2024-10-13 09:33:52,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:52,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:33:52,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:52,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:33:52,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:33:52,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 130 [2024-10-13 09:33:52,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 89 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:52,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:52,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 130 [2024-10-13 09:33:52,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:33:52,653 INFO L124 PetriNetUnfolderBase]: 252/1073 cut-off events. [2024-10-13 09:33:52,654 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-10-13 09:33:52,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1690 conditions, 1073 events. 252/1073 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7480 event pairs, 98 based on Foata normal form. 0/965 useless extension candidates. Maximal degree in co-relation 1685. Up to 398 conditions per place. [2024-10-13 09:33:52,666 INFO L140 encePairwiseOnDemand]: 114/130 looper letters, 47 selfloop transitions, 12 changer transitions 0/116 dead transitions. [2024-10-13 09:33:52,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 116 transitions, 365 flow [2024-10-13 09:33:52,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:33:52,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:33:52,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2024-10-13 09:33:52,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6692307692307692 [2024-10-13 09:33:52,671 INFO L175 Difference]: Start difference. First operand has 93 places, 89 transitions, 188 flow. Second operand 3 states and 261 transitions. [2024-10-13 09:33:52,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 116 transitions, 365 flow [2024-10-13 09:33:52,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 116 transitions, 365 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:33:52,676 INFO L231 Difference]: Finished difference. Result has 97 places, 101 transitions, 292 flow [2024-10-13 09:33:52,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=97, PETRI_TRANSITIONS=101} [2024-10-13 09:33:52,678 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, -31 predicate places. [2024-10-13 09:33:52,680 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 101 transitions, 292 flow [2024-10-13 09:33:52,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:52,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:52,680 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] [2024-10-13 09:33:52,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 09:33:52,682 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-13 09:33:52,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:52,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1674056529, now seen corresponding path program 1 times [2024-10-13 09:33:52,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:52,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384055012] [2024-10-13 09:33:52,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:52,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:52,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:52,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384055012] [2024-10-13 09:33:52,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384055012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:52,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:52,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:33:52,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213146508] [2024-10-13 09:33:52,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:52,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:33:52,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:52,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:33:52,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:33:52,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 130 [2024-10-13 09:33:52,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 101 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:52,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:52,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 130 [2024-10-13 09:33:52,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:33:53,021 INFO L124 PetriNetUnfolderBase]: 334/1258 cut-off events. [2024-10-13 09:33:53,023 INFO L125 PetriNetUnfolderBase]: For 451/466 co-relation queries the response was YES. [2024-10-13 09:33:53,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2454 conditions, 1258 events. 334/1258 cut-off events. For 451/466 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 9104 event pairs, 191 based on Foata normal form. 4/1152 useless extension candidates. Maximal degree in co-relation 2447. Up to 644 conditions per place. [2024-10-13 09:33:53,037 INFO L140 encePairwiseOnDemand]: 122/130 looper letters, 44 selfloop transitions, 10 changer transitions 0/117 dead transitions. [2024-10-13 09:33:53,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 117 transitions, 457 flow [2024-10-13 09:33:53,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:33:53,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:33:53,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2024-10-13 09:33:53,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6384615384615384 [2024-10-13 09:33:53,039 INFO L175 Difference]: Start difference. First operand has 97 places, 101 transitions, 292 flow. Second operand 3 states and 249 transitions. [2024-10-13 09:33:53,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 117 transitions, 457 flow [2024-10-13 09:33:53,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 117 transitions, 425 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:33:53,047 INFO L231 Difference]: Finished difference. Result has 99 places, 109 transitions, 354 flow [2024-10-13 09:33:53,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=99, PETRI_TRANSITIONS=109} [2024-10-13 09:33:53,048 INFO L277 CegarLoopForPetriNet]: 128 programPoint places, -29 predicate places. [2024-10-13 09:33:53,049 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 109 transitions, 354 flow [2024-10-13 09:33:53,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:53,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:53,050 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:33:53,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 09:33:53,050 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-13 09:33:53,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:53,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1390293386, now seen corresponding path program 1 times [2024-10-13 09:33:53,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:53,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257213119] [2024-10-13 09:33:53,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:53,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:33:53,071 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:33:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:33:53,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:33:53,086 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:33:53,086 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2024-10-13 09:33:53,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-10-13 09:33:53,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-10-13 09:33:53,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-10-13 09:33:53,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-10-13 09:33:53,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-10-13 09:33:53,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2024-10-13 09:33:53,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-10-13 09:33:53,088 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-10-13 09:33:53,088 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-10-13 09:33:53,088 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2024-10-13 09:33:53,088 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2024-10-13 09:33:53,089 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2024-10-13 09:33:53,089 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2024-10-13 09:33:53,089 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-10-13 09:33:53,089 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-10-13 09:33:53,090 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-10-13 09:33:53,090 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-10-13 09:33:53,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-10-13 09:33:53,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-10-13 09:33:53,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-10-13 09:33:53,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-10-13 09:33:53,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-10-13 09:33:53,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-10-13 09:33:53,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-10-13 09:33:53,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-10-13 09:33:53,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-10-13 09:33:53,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-10-13 09:33:53,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-10-13 09:33:53,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-10-13 09:33:53,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-10-13 09:33:53,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-10-13 09:33:53,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-10-13 09:33:53,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-10-13 09:33:53,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-10-13 09:33:53,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-10-13 09:33:53,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-10-13 09:33:53,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-10-13 09:33:53,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-10-13 09:33:53,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-10-13 09:33:53,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-10-13 09:33:53,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-10-13 09:33:53,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-10-13 09:33:53,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-10-13 09:33:53,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-10-13 09:33:53,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-10-13 09:33:53,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:33:53,098 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-13 09:33:53,099 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:33:53,099 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-13 09:33:53,138 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:33:53,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 183 transitions, 384 flow [2024-10-13 09:33:53,168 INFO L124 PetriNetUnfolderBase]: 13/214 cut-off events. [2024-10-13 09:33:53,169 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-13 09:33:53,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 214 events. 13/214 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 684 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 167. Up to 8 conditions per place. [2024-10-13 09:33:53,170 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 183 transitions, 384 flow [2024-10-13 09:33:53,174 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 183 transitions, 384 flow [2024-10-13 09:33:53,175 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:33:53,175 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;@5a1dd98a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:33:53,175 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-10-13 09:33:53,179 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:33:53,180 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2024-10-13 09:33:53,180 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:33:53,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:53,180 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] [2024-10-13 09:33:53,180 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-13 09:33:53,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:53,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1892858224, now seen corresponding path program 1 times [2024-10-13 09:33:53,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:53,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963582359] [2024-10-13 09:33:53,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:53,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:53,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:53,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:53,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963582359] [2024-10-13 09:33:53,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963582359] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:53,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:53,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:33:53,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496065160] [2024-10-13 09:33:53,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:53,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:33:53,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:53,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:33:53,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:33:53,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 183 [2024-10-13 09:33:53,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 183 transitions, 384 flow. Second operand has 2 states, 2 states have (on average 113.0) internal successors, (226), 2 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:53,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:53,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 183 [2024-10-13 09:33:53,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:33:53,547 INFO L124 PetriNetUnfolderBase]: 979/2546 cut-off events. [2024-10-13 09:33:53,547 INFO L125 PetriNetUnfolderBase]: For 412/412 co-relation queries the response was YES. [2024-10-13 09:33:53,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4369 conditions, 2546 events. 979/2546 cut-off events. For 412/412 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 20579 event pairs, 952 based on Foata normal form. 1160/3432 useless extension candidates. Maximal degree in co-relation 3498. Up to 1537 conditions per place. [2024-10-13 09:33:53,580 INFO L140 encePairwiseOnDemand]: 139/183 looper letters, 24 selfloop transitions, 0 changer transitions 0/124 dead transitions. [2024-10-13 09:33:53,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 124 transitions, 314 flow [2024-10-13 09:33:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:33:53,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:33:53,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 292 transitions. [2024-10-13 09:33:53,582 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7978142076502732 [2024-10-13 09:33:53,582 INFO L175 Difference]: Start difference. First operand has 180 places, 183 transitions, 384 flow. Second operand 2 states and 292 transitions. [2024-10-13 09:33:53,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 124 transitions, 314 flow [2024-10-13 09:33:53,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 124 transitions, 312 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-13 09:33:53,588 INFO L231 Difference]: Finished difference. Result has 129 places, 124 transitions, 264 flow [2024-10-13 09:33:53,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=264, PETRI_PLACES=129, PETRI_TRANSITIONS=124} [2024-10-13 09:33:53,589 INFO L277 CegarLoopForPetriNet]: 180 programPoint places, -51 predicate places. [2024-10-13 09:33:53,590 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 124 transitions, 264 flow [2024-10-13 09:33:53,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 113.0) internal successors, (226), 2 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:53,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:53,590 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] [2024-10-13 09:33:53,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:33:53,591 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-13 09:33:53,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:53,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2029354413, now seen corresponding path program 1 times [2024-10-13 09:33:53,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:53,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673655893] [2024-10-13 09:33:53,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:53,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:53,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:53,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673655893] [2024-10-13 09:33:53,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673655893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:53,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:53,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:33:53,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968209127] [2024-10-13 09:33:53,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:53,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:33:53,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:53,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:33:53,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:33:53,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 183 [2024-10-13 09:33:53,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 124 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:53,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:53,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 183 [2024-10-13 09:33:53,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:33:56,574 INFO L124 PetriNetUnfolderBase]: 9813/24595 cut-off events. [2024-10-13 09:33:56,574 INFO L125 PetriNetUnfolderBase]: For 955/955 co-relation queries the response was YES. [2024-10-13 09:33:56,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41194 conditions, 24595 events. 9813/24595 cut-off events. For 955/955 co-relation queries the response was YES. Maximal size of possible extension queue 837. Compared 269293 event pairs, 4399 based on Foata normal form. 0/21996 useless extension candidates. Maximal degree in co-relation 41188. Up to 10504 conditions per place. [2024-10-13 09:33:56,816 INFO L140 encePairwiseOnDemand]: 159/183 looper letters, 71 selfloop transitions, 18 changer transitions 0/165 dead transitions. [2024-10-13 09:33:56,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 165 transitions, 534 flow [2024-10-13 09:33:56,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:33:56,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:33:56,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2024-10-13 09:33:56,818 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6539162112932605 [2024-10-13 09:33:56,818 INFO L175 Difference]: Start difference. First operand has 129 places, 124 transitions, 264 flow. Second operand 3 states and 359 transitions. [2024-10-13 09:33:56,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 165 transitions, 534 flow [2024-10-13 09:33:56,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 165 transitions, 534 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:33:56,823 INFO L231 Difference]: Finished difference. Result has 133 places, 142 transitions, 420 flow [2024-10-13 09:33:56,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=420, PETRI_PLACES=133, PETRI_TRANSITIONS=142} [2024-10-13 09:33:56,824 INFO L277 CegarLoopForPetriNet]: 180 programPoint places, -47 predicate places. [2024-10-13 09:33:56,824 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 142 transitions, 420 flow [2024-10-13 09:33:56,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:56,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:56,825 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] [2024-10-13 09:33:56,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 09:33:56,825 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-13 09:33:56,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:56,826 INFO L85 PathProgramCache]: Analyzing trace with hash -550013476, now seen corresponding path program 1 times [2024-10-13 09:33:56,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:56,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127281806] [2024-10-13 09:33:56,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:56,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:56,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:56,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127281806] [2024-10-13 09:33:56,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127281806] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:56,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:56,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:33:56,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242396231] [2024-10-13 09:33:56,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:56,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:33:56,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:56,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:33:56,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:33:57,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 183 [2024-10-13 09:33:57,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 142 transitions, 420 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:57,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:57,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 183 [2024-10-13 09:33:57,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:34:00,209 INFO L124 PetriNetUnfolderBase]: 12917/30356 cut-off events. [2024-10-13 09:34:00,209 INFO L125 PetriNetUnfolderBase]: For 13607/14216 co-relation queries the response was YES. [2024-10-13 09:34:00,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63466 conditions, 30356 events. 12917/30356 cut-off events. For 13607/14216 co-relation queries the response was YES. Maximal size of possible extension queue 987. Compared 333656 event pairs, 7730 based on Foata normal form. 62/27724 useless extension candidates. Maximal degree in co-relation 63458. Up to 18033 conditions per place. [2024-10-13 09:34:00,599 INFO L140 encePairwiseOnDemand]: 171/183 looper letters, 68 selfloop transitions, 20 changer transitions 0/176 dead transitions. [2024-10-13 09:34:00,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 176 transitions, 722 flow [2024-10-13 09:34:00,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:34:00,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:34:00,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2024-10-13 09:34:00,601 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.639344262295082 [2024-10-13 09:34:00,601 INFO L175 Difference]: Start difference. First operand has 133 places, 142 transitions, 420 flow. Second operand 3 states and 351 transitions. [2024-10-13 09:34:00,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 176 transitions, 722 flow [2024-10-13 09:34:00,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 176 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:34:00,631 INFO L231 Difference]: Finished difference. Result has 135 places, 160 transitions, 570 flow [2024-10-13 09:34:00,633 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=135, PETRI_TRANSITIONS=160} [2024-10-13 09:34:00,634 INFO L277 CegarLoopForPetriNet]: 180 programPoint places, -45 predicate places. [2024-10-13 09:34:00,634 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 160 transitions, 570 flow [2024-10-13 09:34:00,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:34:00,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:34:00,636 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-13 09:34:00,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 09:34:00,636 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-13 09:34:00,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:34:00,637 INFO L85 PathProgramCache]: Analyzing trace with hash -929909567, now seen corresponding path program 1 times [2024-10-13 09:34:00,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:34:00,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882915297] [2024-10-13 09:34:00,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:34:00,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:34:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:34:00,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 09:34:00,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:34:00,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882915297] [2024-10-13 09:34:00,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882915297] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:34:00,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:34:00,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:34:00,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130572597] [2024-10-13 09:34:00,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:34:00,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:34:00,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:34:00,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:34:00,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:34:00,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 183 [2024-10-13 09:34:00,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 160 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:34:00,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:34:00,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 183 [2024-10-13 09:34:00,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:34:03,985 INFO L124 PetriNetUnfolderBase]: 15412/36113 cut-off events. [2024-10-13 09:34:03,986 INFO L125 PetriNetUnfolderBase]: For 21622/22404 co-relation queries the response was YES. [2024-10-13 09:34:04,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78777 conditions, 36113 events. 15412/36113 cut-off events. For 21622/22404 co-relation queries the response was YES. Maximal size of possible extension queue 1136. Compared 403944 event pairs, 8223 based on Foata normal form. 62/32470 useless extension candidates. Maximal degree in co-relation 78768. Up to 21156 conditions per place. [2024-10-13 09:34:04,597 INFO L140 encePairwiseOnDemand]: 171/183 looper letters, 81 selfloop transitions, 28 changer transitions 0/199 dead transitions. [2024-10-13 09:34:04,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 199 transitions, 963 flow [2024-10-13 09:34:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:34:04,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:34:04,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-10-13 09:34:04,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6375227686703097 [2024-10-13 09:34:04,599 INFO L175 Difference]: Start difference. First operand has 135 places, 160 transitions, 570 flow. Second operand 3 states and 350 transitions. [2024-10-13 09:34:04,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 199 transitions, 963 flow [2024-10-13 09:34:04,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 199 transitions, 907 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:34:04,659 INFO L231 Difference]: Finished difference. Result has 137 places, 184 transitions, 816 flow [2024-10-13 09:34:04,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=816, PETRI_PLACES=137, PETRI_TRANSITIONS=184} [2024-10-13 09:34:04,661 INFO L277 CegarLoopForPetriNet]: 180 programPoint places, -43 predicate places. [2024-10-13 09:34:04,661 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 184 transitions, 816 flow [2024-10-13 09:34:04,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:34:04,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:34:04,661 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] [2024-10-13 09:34:04,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 09:34:04,662 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-13 09:34:04,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:34:04,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1260354058, now seen corresponding path program 1 times [2024-10-13 09:34:04,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:34:04,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955461397] [2024-10-13 09:34:04,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:34:04,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:34:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:34:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:34:04,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:34:04,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955461397] [2024-10-13 09:34:04,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955461397] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:34:04,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:34:04,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:34:04,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011445588] [2024-10-13 09:34:04,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:34:04,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:34:04,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:34:04,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:34:04,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:34:04,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 183 [2024-10-13 09:34:04,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 184 transitions, 816 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:34:04,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:34:04,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 183 [2024-10-13 09:34:04,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:34:08,587 INFO L124 PetriNetUnfolderBase]: 17528/39703 cut-off events. [2024-10-13 09:34:08,588 INFO L125 PetriNetUnfolderBase]: For 46498/47646 co-relation queries the response was YES. [2024-10-13 09:34:09,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96680 conditions, 39703 events. 17528/39703 cut-off events. For 46498/47646 co-relation queries the response was YES. Maximal size of possible extension queue 1282. Compared 440826 event pairs, 8696 based on Foata normal form. 64/35337 useless extension candidates. Maximal degree in co-relation 96670. Up to 23728 conditions per place. [2024-10-13 09:34:09,269 INFO L140 encePairwiseOnDemand]: 171/183 looper letters, 104 selfloop transitions, 28 changer transitions 0/224 dead transitions. [2024-10-13 09:34:09,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 224 transitions, 1306 flow [2024-10-13 09:34:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:34:09,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:34:09,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2024-10-13 09:34:09,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.639344262295082 [2024-10-13 09:34:09,272 INFO L175 Difference]: Start difference. First operand has 137 places, 184 transitions, 816 flow. Second operand 3 states and 351 transitions. [2024-10-13 09:34:09,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 224 transitions, 1306 flow [2024-10-13 09:34:09,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 224 transitions, 1234 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:34:09,346 INFO L231 Difference]: Finished difference. Result has 139 places, 208 transitions, 1090 flow [2024-10-13 09:34:09,347 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1090, PETRI_PLACES=139, PETRI_TRANSITIONS=208} [2024-10-13 09:34:09,348 INFO L277 CegarLoopForPetriNet]: 180 programPoint places, -41 predicate places. [2024-10-13 09:34:09,348 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 208 transitions, 1090 flow [2024-10-13 09:34:09,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:34:09,348 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:34:09,349 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:34:09,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 09:34:09,349 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-13 09:34:09,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:34:09,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1804649831, now seen corresponding path program 1 times [2024-10-13 09:34:09,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:34:09,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280859832] [2024-10-13 09:34:09,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:34:09,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:34:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:34:09,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:34:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:34:09,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:34:09,377 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:34:09,377 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2024-10-13 09:34:09,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2024-10-13 09:34:09,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2024-10-13 09:34:09,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2024-10-13 09:34:09,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2024-10-13 09:34:09,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2024-10-13 09:34:09,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2024-10-13 09:34:09,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2024-10-13 09:34:09,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2024-10-13 09:34:09,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2024-10-13 09:34:09,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2024-10-13 09:34:09,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2024-10-13 09:34:09,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2024-10-13 09:34:09,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2024-10-13 09:34:09,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2024-10-13 09:34:09,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2024-10-13 09:34:09,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2024-10-13 09:34:09,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2024-10-13 09:34:09,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2024-10-13 09:34:09,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2024-10-13 09:34:09,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2024-10-13 09:34:09,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2024-10-13 09:34:09,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2024-10-13 09:34:09,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2024-10-13 09:34:09,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2024-10-13 09:34:09,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2024-10-13 09:34:09,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2024-10-13 09:34:09,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2024-10-13 09:34:09,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2024-10-13 09:34:09,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2024-10-13 09:34:09,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2024-10-13 09:34:09,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2024-10-13 09:34:09,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2024-10-13 09:34:09,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2024-10-13 09:34:09,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2024-10-13 09:34:09,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2024-10-13 09:34:09,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2024-10-13 09:34:09,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2024-10-13 09:34:09,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2024-10-13 09:34:09,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2024-10-13 09:34:09,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2024-10-13 09:34:09,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2024-10-13 09:34:09,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2024-10-13 09:34:09,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2024-10-13 09:34:09,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2024-10-13 09:34:09,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2024-10-13 09:34:09,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2024-10-13 09:34:09,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2024-10-13 09:34:09,384 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2024-10-13 09:34:09,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2024-10-13 09:34:09,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2024-10-13 09:34:09,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2024-10-13 09:34:09,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2024-10-13 09:34:09,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2024-10-13 09:34:09,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2024-10-13 09:34:09,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2024-10-13 09:34:09,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2024-10-13 09:34:09,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2024-10-13 09:34:09,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2024-10-13 09:34:09,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2024-10-13 09:34:09,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2024-10-13 09:34:09,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 09:34:09,386 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-13 09:34:09,387 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:34:09,387 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-13 09:34:09,428 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:34:09,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 236 transitions, 500 flow [2024-10-13 09:34:09,458 INFO L124 PetriNetUnfolderBase]: 17/278 cut-off events. [2024-10-13 09:34:09,459 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-13 09:34:09,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 278 events. 17/278 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1000 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 222. Up to 10 conditions per place. [2024-10-13 09:34:09,462 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 236 transitions, 500 flow [2024-10-13 09:34:09,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 236 transitions, 500 flow [2024-10-13 09:34:09,468 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:34:09,468 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;@5a1dd98a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:34:09,468 INFO L334 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2024-10-13 09:34:09,470 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:34:09,470 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2024-10-13 09:34:09,470 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:34:09,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:34:09,470 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] [2024-10-13 09:34:09,470 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2024-10-13 09:34:09,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:34:09,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1839099248, now seen corresponding path program 1 times [2024-10-13 09:34:09,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:34:09,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911760324] [2024-10-13 09:34:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:34:09,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:34:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:34:09,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:34:09,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:34:09,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911760324] [2024-10-13 09:34:09,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911760324] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:34:09,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:34:09,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:34:09,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756338547] [2024-10-13 09:34:09,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:34:09,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:34:09,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:34:09,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:34:09,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:34:09,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 236 [2024-10-13 09:34:09,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 236 transitions, 500 flow. Second operand has 2 states, 2 states have (on average 143.0) internal successors, (286), 2 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) [2024-10-13 09:34:09,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:34:09,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 236 [2024-10-13 09:34:09,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:34:11,829 INFO L124 PetriNetUnfolderBase]: 11816/22152 cut-off events. [2024-10-13 09:34:11,829 INFO L125 PetriNetUnfolderBase]: For 5535/5535 co-relation queries the response was YES. [2024-10-13 09:34:11,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41384 conditions, 22152 events. 11816/22152 cut-off events. For 5535/5535 co-relation queries the response was YES. Maximal size of possible extension queue 1221. Compared 212327 event pairs, 11704 based on Foata normal form. 10852/31112 useless extension candidates. Maximal degree in co-relation 33436. Up to 16385 conditions per place. [2024-10-13 09:34:12,342 INFO L140 encePairwiseOnDemand]: 178/236 looper letters, 32 selfloop transitions, 0 changer transitions 0/159 dead transitions. [2024-10-13 09:34:12,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 159 transitions, 410 flow [2024-10-13 09:34:12,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:34:12,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:34:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 374 transitions. [2024-10-13 09:34:12,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7923728813559322 [2024-10-13 09:34:12,344 INFO L175 Difference]: Start difference. First operand has 232 places, 236 transitions, 500 flow. Second operand 2 states and 374 transitions. [2024-10-13 09:34:12,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 159 transitions, 410 flow [2024-10-13 09:34:12,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 159 transitions, 404 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-10-13 09:34:12,350 INFO L231 Difference]: Finished difference. Result has 165 places, 159 transitions, 340 flow [2024-10-13 09:34:12,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=340, PETRI_PLACES=165, PETRI_TRANSITIONS=159} [2024-10-13 09:34:12,352 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -67 predicate places. [2024-10-13 09:34:12,352 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 159 transitions, 340 flow [2024-10-13 09:34:12,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 143.0) internal successors, (286), 2 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) [2024-10-13 09:34:12,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:34:12,353 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] [2024-10-13 09:34:12,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 09:34:12,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2024-10-13 09:34:12,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:34:12,353 INFO L85 PathProgramCache]: Analyzing trace with hash 2142853715, now seen corresponding path program 1 times [2024-10-13 09:34:12,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:34:12,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599311087] [2024-10-13 09:34:12,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:34:12,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:34:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:34:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:34:12,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:34:12,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599311087] [2024-10-13 09:34:12,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599311087] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:34:12,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:34:12,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:34:12,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532129535] [2024-10-13 09:34:12,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:34:12,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:34:12,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:34:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:34:12,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:34:12,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 236 [2024-10-13 09:34:12,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 159 transitions, 340 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) [2024-10-13 09:34:12,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:34:12,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 236 [2024-10-13 09:34:12,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand