./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-divine/barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/barrier_3t.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 116240ce9d1e33454ba4eae840c2d7b67606f3cd4ffa1a06798f06dcbc1241fc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:21:08,430 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:21:08,503 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:21:08,506 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:21:08,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:21:08,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:21:08,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:21:08,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:21:08,528 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:21:08,528 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:21:08,529 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:21:08,529 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:21:08,529 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:21:08,529 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:21:08,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:21:08,530 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:21:08,530 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:21:08,530 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:21:08,530 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:21:08,530 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:21:08,531 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:21:08,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:21:08,534 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:21:08,534 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:21:08,534 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:21:08,534 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:21:08,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:21:08,535 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:21:08,535 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:21:08,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:21:08,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:21:08,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:21:08,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:21:08,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:21:08,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:21:08,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:21:08,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:21:08,537 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:21:08,537 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:21:08,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:21:08,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:21:08,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 116240ce9d1e33454ba4eae840c2d7b67606f3cd4ffa1a06798f06dcbc1241fc [2024-10-24 15:21:08,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:21:08,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:21:08,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:21:08,726 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:21:08,727 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:21:08,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/barrier_3t.i [2024-10-24 15:21:10,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:21:10,422 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:21:10,422 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/barrier_3t.i [2024-10-24 15:21:10,433 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791bd6cbb/fdeae15fe653478097738fdb0d2f81e8/FLAG0e4c67633 [2024-10-24 15:21:10,448 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/791bd6cbb/fdeae15fe653478097738fdb0d2f81e8 [2024-10-24 15:21:10,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:21:10,453 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:21:10,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:21:10,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:21:10,459 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:21:10,460 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:21:10" (1/1) ... [2024-10-24 15:21:10,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d146591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:10, skipping insertion in model container [2024-10-24 15:21:10,461 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:21:10" (1/1) ... [2024-10-24 15:21:10,505 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:21:10,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:21:10,905 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:21:10,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:21:11,008 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:21:11,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11 WrapperNode [2024-10-24 15:21:11,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:21:11,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:21:11,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:21:11,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:21:11,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,099 INFO L138 Inliner]: procedures = 174, calls = 99, calls flagged for inlining = 19, calls inlined = 31, statements flattened = 1059 [2024-10-24 15:21:11,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:21:11,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:21:11,102 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:21:11,102 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:21:11,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,129 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,190 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,201 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:21:11,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:21:11,213 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:21:11,213 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:21:11,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (1/1) ... [2024-10-24 15:21:11,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:21:11,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:21:11,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:21:11,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:21:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:21:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:21:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:21:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-10-24 15:21:11,285 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-10-24 15:21:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:21:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-24 15:21:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:21:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-24 15:21:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:21:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:21:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:21:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:21:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:21:11,289 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:21:11,416 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:21:11,418 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:21:12,401 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:21:12,401 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:21:12,440 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:21:12,441 INFO L314 CfgBuilder]: Removed 20 assume(true) statements. [2024-10-24 15:21:12,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:21:12 BoogieIcfgContainer [2024-10-24 15:21:12,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:21:12,443 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:21:12,443 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:21:12,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:21:12,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:21:10" (1/3) ... [2024-10-24 15:21:12,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4130fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:21:12, skipping insertion in model container [2024-10-24 15:21:12,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:21:11" (2/3) ... [2024-10-24 15:21:12,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c4130fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:21:12, skipping insertion in model container [2024-10-24 15:21:12,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:21:12" (3/3) ... [2024-10-24 15:21:12,447 INFO L112 eAbstractionObserver]: Analyzing ICFG barrier_3t.i [2024-10-24 15:21:12,459 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:21:12,459 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2024-10-24 15:21:12,459 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:21:12,571 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-24 15:21:12,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1120 places, 1210 transitions, 2427 flow [2024-10-24 15:21:13,215 INFO L124 PetriNetUnfolderBase]: 141/1788 cut-off events. [2024-10-24 15:21:13,216 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:21:13,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 1788 events. 141/1788 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7055 event pairs, 0 based on Foata normal form. 0/1497 useless extension candidates. Maximal degree in co-relation 1084. Up to 4 conditions per place. [2024-10-24 15:21:13,253 INFO L82 GeneralOperation]: Start removeDead. Operand has 1120 places, 1210 transitions, 2427 flow [2024-10-24 15:21:13,278 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1120 places, 1210 transitions, 2427 flow [2024-10-24 15:21:13,286 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:21:13,292 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;@2df90f34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:21:13,293 INFO L334 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2024-10-24 15:21:13,299 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:21:13,299 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-10-24 15:21:13,299 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:21:13,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:21:13,300 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:21:13,300 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-10-24 15:21:13,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:21:13,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1498180254, now seen corresponding path program 1 times [2024-10-24 15:21:13,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:21:13,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041115777] [2024-10-24 15:21:13,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:21:13,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:21:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:21:14,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:21:14,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:21:14,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041115777] [2024-10-24 15:21:14,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041115777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:21:14,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:21:14,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:21:14,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647373359] [2024-10-24 15:21:14,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:21:14,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:21:14,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:21:14,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:21:14,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:21:15,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 862 out of 1210 [2024-10-24 15:21:15,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1120 places, 1210 transitions, 2427 flow. Second operand has 6 states, 6 states have (on average 863.5) internal successors, (5181), 6 states have internal predecessors, (5181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:21:15,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:21:15,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 862 of 1210 [2024-10-24 15:21:15,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:21:30,891 INFO L124 PetriNetUnfolderBase]: 18617/86563 cut-off events. [2024-10-24 15:21:30,891 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-10-24 15:21:31,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119861 conditions, 86563 events. 18617/86563 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 1059754 event pairs, 16093 based on Foata normal form. 8306/84296 useless extension candidates. Maximal degree in co-relation 119043. Up to 33288 conditions per place. [2024-10-24 15:21:31,243 INFO L140 encePairwiseOnDemand]: 1138/1210 looper letters, 276 selfloop transitions, 5 changer transitions 3/1120 dead transitions. [2024-10-24 15:21:31,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1101 places, 1120 transitions, 2809 flow [2024-10-24 15:21:31,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:21:31,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:21:31,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5520 transitions. [2024-10-24 15:21:31,265 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7603305785123967 [2024-10-24 15:21:31,267 INFO L175 Difference]: Start difference. First operand has 1120 places, 1210 transitions, 2427 flow. Second operand 6 states and 5520 transitions. [2024-10-24 15:21:31,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1101 places, 1120 transitions, 2809 flow [2024-10-24 15:21:31,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1101 places, 1120 transitions, 2809 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:21:31,287 INFO L231 Difference]: Finished difference. Result has 1101 places, 1117 transitions, 2251 flow [2024-10-24 15:21:31,290 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1210, PETRI_DIFFERENCE_MINUEND_FLOW=2247, PETRI_DIFFERENCE_MINUEND_PLACES=1096, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2251, PETRI_PLACES=1101, PETRI_TRANSITIONS=1117} [2024-10-24 15:21:31,293 INFO L277 CegarLoopForPetriNet]: 1120 programPoint places, -19 predicate places. [2024-10-24 15:21:31,293 INFO L471 AbstractCegarLoop]: Abstraction has has 1101 places, 1117 transitions, 2251 flow [2024-10-24 15:21:31,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 863.5) internal successors, (5181), 6 states have internal predecessors, (5181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:21:31,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:21:31,296 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:21:31,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:21:31,296 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-10-24 15:21:31,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:21:31,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1575025239, now seen corresponding path program 1 times [2024-10-24 15:21:31,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:21:31,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800037880] [2024-10-24 15:21:31,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:21:31,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:21:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:21:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:21:31,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:21:31,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800037880] [2024-10-24 15:21:31,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800037880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:21:31,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:21:31,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:21:31,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615708457] [2024-10-24 15:21:31,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:21:31,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:21:31,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:21:31,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:21:31,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:21:31,587 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1108 out of 1210 [2024-10-24 15:21:31,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1101 places, 1117 transitions, 2251 flow. Second operand has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:21:31,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:21:31,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1108 of 1210 [2024-10-24 15:21:31,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:21:33,179 INFO L124 PetriNetUnfolderBase]: 563/9917 cut-off events. [2024-10-24 15:21:33,180 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 15:21:33,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10542 conditions, 9917 events. 563/9917 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 90822 event pairs, 210 based on Foata normal form. 1/8505 useless extension candidates. Maximal degree in co-relation 10453. Up to 608 conditions per place. [2024-10-24 15:21:33,404 INFO L140 encePairwiseOnDemand]: 1207/1210 looper letters, 35 selfloop transitions, 2 changer transitions 0/1118 dead transitions. [2024-10-24 15:21:33,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1100 places, 1118 transitions, 2327 flow [2024-10-24 15:21:33,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:21:33,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:21:33,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3362 transitions. [2024-10-24 15:21:33,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9261707988980716 [2024-10-24 15:21:33,411 INFO L175 Difference]: Start difference. First operand has 1101 places, 1117 transitions, 2251 flow. Second operand 3 states and 3362 transitions. [2024-10-24 15:21:33,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1100 places, 1118 transitions, 2327 flow [2024-10-24 15:21:33,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1095 places, 1118 transitions, 2317 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:21:33,431 INFO L231 Difference]: Finished difference. Result has 1096 places, 1118 transitions, 2253 flow [2024-10-24 15:21:33,433 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1210, PETRI_DIFFERENCE_MINUEND_FLOW=2241, PETRI_DIFFERENCE_MINUEND_PLACES=1093, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2253, PETRI_PLACES=1096, PETRI_TRANSITIONS=1118} [2024-10-24 15:21:33,435 INFO L277 CegarLoopForPetriNet]: 1120 programPoint places, -24 predicate places. [2024-10-24 15:21:33,435 INFO L471 AbstractCegarLoop]: Abstraction has has 1096 places, 1118 transitions, 2253 flow [2024-10-24 15:21:33,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:21:33,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:21:33,438 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:21:33,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:21:33,438 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-10-24 15:21:33,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:21:33,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1909971189, now seen corresponding path program 1 times [2024-10-24 15:21:33,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:21:33,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865667910] [2024-10-24 15:21:33,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:21:33,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:21:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:21:33,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:21:33,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:21:33,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865667910] [2024-10-24 15:21:33,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865667910] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:21:33,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:21:33,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:21:33,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580449659] [2024-10-24 15:21:33,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:21:33,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:21:33,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:21:33,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:21:33,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:21:35,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 862 out of 1210 [2024-10-24 15:21:35,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1096 places, 1118 transitions, 2253 flow. Second operand has 6 states, 6 states have (on average 863.5) internal successors, (5181), 6 states have internal predecessors, (5181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:21:35,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:21:35,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 862 of 1210 [2024-10-24 15:21:35,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:21:50,996 INFO L124 PetriNetUnfolderBase]: 18617/86587 cut-off events. [2024-10-24 15:21:50,996 INFO L125 PetriNetUnfolderBase]: For 10/13 co-relation queries the response was YES. [2024-10-24 15:21:51,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119900 conditions, 86587 events. 18617/86587 cut-off events. For 10/13 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 1060569 event pairs, 16093 based on Foata normal form. 0/76016 useless extension candidates. Maximal degree in co-relation 119816. Up to 33291 conditions per place. [2024-10-24 15:21:51,366 INFO L140 encePairwiseOnDemand]: 1204/1210 looper letters, 277 selfloop transitions, 5 changer transitions 0/1117 dead transitions. [2024-10-24 15:21:51,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1100 places, 1117 transitions, 2815 flow [2024-10-24 15:21:51,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:21:51,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:21:51,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5454 transitions. [2024-10-24 15:21:51,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7512396694214876 [2024-10-24 15:21:51,375 INFO L175 Difference]: Start difference. First operand has 1096 places, 1118 transitions, 2253 flow. Second operand 6 states and 5454 transitions. [2024-10-24 15:21:51,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1100 places, 1117 transitions, 2815 flow [2024-10-24 15:21:51,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1099 places, 1117 transitions, 2813 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:21:51,390 INFO L231 Difference]: Finished difference. Result has 1099 places, 1117 transitions, 2259 flow [2024-10-24 15:21:51,392 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1210, PETRI_DIFFERENCE_MINUEND_FLOW=2249, PETRI_DIFFERENCE_MINUEND_PLACES=1094, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2259, PETRI_PLACES=1099, PETRI_TRANSITIONS=1117} [2024-10-24 15:21:51,393 INFO L277 CegarLoopForPetriNet]: 1120 programPoint places, -21 predicate places. [2024-10-24 15:21:51,393 INFO L471 AbstractCegarLoop]: Abstraction has has 1099 places, 1117 transitions, 2259 flow [2024-10-24 15:21:51,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 863.5) internal successors, (5181), 6 states have internal predecessors, (5181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:21:51,395 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:21:51,396 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:21:51,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:21:51,396 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-10-24 15:21:51,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:21:51,397 INFO L85 PathProgramCache]: Analyzing trace with hash 2111114493, now seen corresponding path program 1 times [2024-10-24 15:21:51,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:21:51,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071103807] [2024-10-24 15:21:51,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:21:51,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:21:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:21:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:21:51,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:21:51,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071103807] [2024-10-24 15:21:51,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071103807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:21:51,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:21:51,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:21:51,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586278450] [2024-10-24 15:21:51,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:21:51,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:21:51,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:21:51,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:21:51,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:21:53,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 862 out of 1210 [2024-10-24 15:21:53,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1099 places, 1117 transitions, 2259 flow. Second operand has 6 states, 6 states have (on average 863.5) internal successors, (5181), 6 states have internal predecessors, (5181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:21:53,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:21:53,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 862 of 1210 [2024-10-24 15:21:53,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand