./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-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-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:26:50,329 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:26:50,398 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:26:50,402 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:26:50,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:26:50,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:26:50,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:26:50,427 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:26:50,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:26:50,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:26:50,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:26:50,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:26:50,430 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:26:50,432 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:26:50,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:26:50,433 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:26:50,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:26:50,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:26:50,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:26:50,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:26:50,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:26:50,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:26:50,435 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:26:50,436 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:26:50,436 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:26:50,436 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:26:50,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:26:50,437 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:26:50,437 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:26:50,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:26:50,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:26:50,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:26:50,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:26:50,439 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:26:50,439 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:26:50,439 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:26:50,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:26:50,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:26:50,440 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:26:50,441 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:26:50,441 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:26:50,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 116240ce9d1e33454ba4eae840c2d7b67606f3cd4ffa1a06798f06dcbc1241fc [2024-11-10 14:26:50,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:26:50,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:26:50,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:26:50,751 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:26:50,752 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:26:50,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/barrier_3t.i [2024-11-10 14:26:52,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:26:52,415 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:26:52,415 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/barrier_3t.i [2024-11-10 14:26:52,430 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/684cb4e20/211daa67e8634b76a3ec36f173a94d1c/FLAGaa1432d48 [2024-11-10 14:26:52,454 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/684cb4e20/211daa67e8634b76a3ec36f173a94d1c [2024-11-10 14:26:52,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:26:52,459 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:26:52,461 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:26:52,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:26:52,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:26:52,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:26:52" (1/1) ... [2024-11-10 14:26:52,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ac6813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:52, skipping insertion in model container [2024-11-10 14:26:52,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:26:52" (1/1) ... [2024-11-10 14:26:52,521 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:26:52,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:26:52,980 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:26:53,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:26:53,108 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:26:53,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53 WrapperNode [2024-11-10 14:26:53,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:26:53,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:26:53,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:26:53,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:26:53,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53" (1/1) ... [2024-11-10 14:26:53,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53" (1/1) ... [2024-11-10 14:26:53,224 INFO L138 Inliner]: procedures = 174, calls = 99, calls flagged for inlining = 19, calls inlined = 31, statements flattened = 1039 [2024-11-10 14:26:53,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:26:53,225 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:26:53,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:26:53,226 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:26:53,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53" (1/1) ... [2024-11-10 14:26:53,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53" (1/1) ... [2024-11-10 14:26:53,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53" (1/1) ... [2024-11-10 14:26:53,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53" (1/1) ... [2024-11-10 14:26:53,335 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53" (1/1) ... [2024-11-10 14:26:53,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53" (1/1) ... [2024-11-10 14:26:53,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53" (1/1) ... [2024-11-10 14:26:53,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53" (1/1) ... [2024-11-10 14:26:53,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:26:53,359 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:26:53,359 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:26:53,360 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:26:53,360 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53" (1/1) ... [2024-11-10 14:26:53,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:26:53,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:26:53,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 14:26:53,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 14:26:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:26:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:26:53,450 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:26:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-10 14:26:53,451 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-10 14:26:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:26:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-10 14:26:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:26:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-10 14:26:53,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:26:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:26:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:26:53,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:26:53,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:26:53,455 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:26:53,705 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:26:53,707 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:26:55,151 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:26:55,152 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:26:55,236 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:26:55,239 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:26:55,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:26:55 BoogieIcfgContainer [2024-11-10 14:26:55,240 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:26:55,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:26:55,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:26:55,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:26:55,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:26:52" (1/3) ... [2024-11-10 14:26:55,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ea362e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:26:55, skipping insertion in model container [2024-11-10 14:26:55,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:26:53" (2/3) ... [2024-11-10 14:26:55,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ea362e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:26:55, skipping insertion in model container [2024-11-10 14:26:55,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:26:55" (3/3) ... [2024-11-10 14:26:55,249 INFO L112 eAbstractionObserver]: Analyzing ICFG barrier_3t.i [2024-11-10 14:26:55,265 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:26:55,266 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2024-11-10 14:26:55,266 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:26:55,434 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:26:55,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1140 places, 1230 transitions, 2467 flow [2024-11-10 14:26:56,314 INFO L124 PetriNetUnfolderBase]: 141/1819 cut-off events. [2024-11-10 14:26:56,315 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:26:56,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1824 conditions, 1819 events. 141/1819 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7331 event pairs, 0 based on Foata normal form. 0/1528 useless extension candidates. Maximal degree in co-relation 1103. Up to 4 conditions per place. [2024-11-10 14:26:56,373 INFO L82 GeneralOperation]: Start removeDead. Operand has 1140 places, 1230 transitions, 2467 flow [2024-11-10 14:26:56,409 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1140 places, 1230 transitions, 2467 flow [2024-11-10 14:26:56,422 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:26:56,432 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;@67bb5c61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:26:56,432 INFO L334 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2024-11-10 14:26:56,440 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:26:56,440 INFO L124 PetriNetUnfolderBase]: 1/57 cut-off events. [2024-11-10 14:26:56,440 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:26:56,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:26:56,441 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] [2024-11-10 14:26:56,442 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-10 14:26:56,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:26:56,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1263160850, now seen corresponding path program 1 times [2024-11-10 14:26:56,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:26:56,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804721716] [2024-11-10 14:26:56,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:26:56,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:26:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:26:57,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:26:57,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:26:57,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804721716] [2024-11-10 14:26:57,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804721716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:26:57,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:26:57,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:26:57,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461097691] [2024-11-10 14:26:57,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:26:57,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:26:57,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:26:57,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:26:57,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:26:59,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 882 out of 1230 [2024-11-10 14:26:59,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1140 places, 1230 transitions, 2467 flow. Second operand has 6 states, 6 states have (on average 883.5) internal successors, (5301), 6 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:26:59,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:26:59,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 882 of 1230 [2024-11-10 14:26:59,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:15,698 INFO L124 PetriNetUnfolderBase]: 18627/88165 cut-off events. [2024-11-10 14:27:15,698 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-10 14:27:15,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121463 conditions, 88165 events. 18627/88165 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 1083596 event pairs, 16093 based on Foata normal form. 8339/85883 useless extension candidates. Maximal degree in co-relation 120633. Up to 33288 conditions per place. [2024-11-10 14:27:16,122 INFO L140 encePairwiseOnDemand]: 1158/1230 looper letters, 276 selfloop transitions, 5 changer transitions 3/1140 dead transitions. [2024-11-10 14:27:16,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1121 places, 1140 transitions, 2849 flow [2024-11-10 14:27:16,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:27:16,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:27:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5640 transitions. [2024-11-10 14:27:16,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7642276422764228 [2024-11-10 14:27:16,163 INFO L175 Difference]: Start difference. First operand has 1140 places, 1230 transitions, 2467 flow. Second operand 6 states and 5640 transitions. [2024-11-10 14:27:16,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1121 places, 1140 transitions, 2849 flow [2024-11-10 14:27:16,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1121 places, 1140 transitions, 2849 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:27:16,200 INFO L231 Difference]: Finished difference. Result has 1121 places, 1137 transitions, 2291 flow [2024-11-10 14:27:16,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1230, PETRI_DIFFERENCE_MINUEND_FLOW=2287, PETRI_DIFFERENCE_MINUEND_PLACES=1116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2291, PETRI_PLACES=1121, PETRI_TRANSITIONS=1137} [2024-11-10 14:27:16,209 INFO L277 CegarLoopForPetriNet]: 1140 programPoint places, -19 predicate places. [2024-11-10 14:27:16,210 INFO L471 AbstractCegarLoop]: Abstraction has has 1121 places, 1137 transitions, 2291 flow [2024-11-10 14:27:16,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 883.5) internal successors, (5301), 6 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:27:16,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:16,214 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] [2024-11-10 14:27:16,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:27:16,215 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-10 14:27:16,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:16,216 INFO L85 PathProgramCache]: Analyzing trace with hash 338116726, now seen corresponding path program 1 times [2024-11-10 14:27:16,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:16,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431120937] [2024-11-10 14:27:16,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:16,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:16,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:16,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:16,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431120937] [2024-11-10 14:27:16,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431120937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:16,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:16,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:27:16,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552857469] [2024-11-10 14:27:16,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:16,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:27:16,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:16,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:27:16,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:27:16,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1128 out of 1230 [2024-11-10 14:27:16,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1121 places, 1137 transitions, 2291 flow. Second operand has 3 states, 3 states have (on average 1129.3333333333333) internal successors, (3388), 3 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:27:16,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:16,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1128 of 1230 [2024-11-10 14:27:16,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:18,674 INFO L124 PetriNetUnfolderBase]: 563/10082 cut-off events. [2024-11-10 14:27:18,674 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 14:27:18,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10707 conditions, 10082 events. 563/10082 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 92379 event pairs, 210 based on Foata normal form. 1/8671 useless extension candidates. Maximal degree in co-relation 10617. Up to 608 conditions per place. [2024-11-10 14:27:18,769 INFO L140 encePairwiseOnDemand]: 1227/1230 looper letters, 35 selfloop transitions, 2 changer transitions 0/1138 dead transitions. [2024-11-10 14:27:18,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1120 places, 1138 transitions, 2367 flow [2024-11-10 14:27:18,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:27:18,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:27:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3422 transitions. [2024-11-10 14:27:18,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9273712737127371 [2024-11-10 14:27:18,776 INFO L175 Difference]: Start difference. First operand has 1121 places, 1137 transitions, 2291 flow. Second operand 3 states and 3422 transitions. [2024-11-10 14:27:18,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1120 places, 1138 transitions, 2367 flow [2024-11-10 14:27:18,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1115 places, 1138 transitions, 2357 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:27:18,796 INFO L231 Difference]: Finished difference. Result has 1116 places, 1138 transitions, 2293 flow [2024-11-10 14:27:18,798 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1230, PETRI_DIFFERENCE_MINUEND_FLOW=2281, PETRI_DIFFERENCE_MINUEND_PLACES=1113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2293, PETRI_PLACES=1116, PETRI_TRANSITIONS=1138} [2024-11-10 14:27:18,799 INFO L277 CegarLoopForPetriNet]: 1140 programPoint places, -24 predicate places. [2024-11-10 14:27:18,799 INFO L471 AbstractCegarLoop]: Abstraction has has 1116 places, 1138 transitions, 2293 flow [2024-11-10 14:27:18,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1129.3333333333333) internal successors, (3388), 3 states have internal predecessors, (3388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:27:18,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:18,802 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] [2024-11-10 14:27:18,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:27:18,802 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-10 14:27:18,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:18,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1228188932, now seen corresponding path program 1 times [2024-11-10 14:27:18,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:18,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296015258] [2024-11-10 14:27:18,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:18,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:19,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:19,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296015258] [2024-11-10 14:27:19,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296015258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:19,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:19,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:27:19,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608112179] [2024-11-10 14:27:19,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:19,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:27:19,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:19,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:27:19,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:27:20,846 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 882 out of 1230 [2024-11-10 14:27:20,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1116 places, 1138 transitions, 2293 flow. Second operand has 6 states, 6 states have (on average 883.5) internal successors, (5301), 6 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:27:20,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:20,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 882 of 1230 [2024-11-10 14:27:20,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:27:36,564 INFO L124 PetriNetUnfolderBase]: 18627/88190 cut-off events. [2024-11-10 14:27:36,565 INFO L125 PetriNetUnfolderBase]: For 10/13 co-relation queries the response was YES. [2024-11-10 14:27:36,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121503 conditions, 88190 events. 18627/88190 cut-off events. For 10/13 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 1083377 event pairs, 16093 based on Foata normal form. 0/77571 useless extension candidates. Maximal degree in co-relation 121418. Up to 33291 conditions per place. [2024-11-10 14:27:37,012 INFO L140 encePairwiseOnDemand]: 1224/1230 looper letters, 277 selfloop transitions, 5 changer transitions 0/1137 dead transitions. [2024-11-10 14:27:37,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1120 places, 1137 transitions, 2855 flow [2024-11-10 14:27:37,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:27:37,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:27:37,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5574 transitions. [2024-11-10 14:27:37,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7552845528455284 [2024-11-10 14:27:37,026 INFO L175 Difference]: Start difference. First operand has 1116 places, 1138 transitions, 2293 flow. Second operand 6 states and 5574 transitions. [2024-11-10 14:27:37,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1120 places, 1137 transitions, 2855 flow [2024-11-10 14:27:37,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1119 places, 1137 transitions, 2853 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:27:37,047 INFO L231 Difference]: Finished difference. Result has 1119 places, 1137 transitions, 2299 flow [2024-11-10 14:27:37,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1230, PETRI_DIFFERENCE_MINUEND_FLOW=2289, PETRI_DIFFERENCE_MINUEND_PLACES=1114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2299, PETRI_PLACES=1119, PETRI_TRANSITIONS=1137} [2024-11-10 14:27:37,050 INFO L277 CegarLoopForPetriNet]: 1140 programPoint places, -21 predicate places. [2024-11-10 14:27:37,050 INFO L471 AbstractCegarLoop]: Abstraction has has 1119 places, 1137 transitions, 2299 flow [2024-11-10 14:27:37,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 883.5) internal successors, (5301), 6 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:27:37,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:27:37,054 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:27:37,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:27:37,054 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-10 14:27:37,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:27:37,055 INFO L85 PathProgramCache]: Analyzing trace with hash -322821390, now seen corresponding path program 1 times [2024-11-10 14:27:37,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:27:37,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598032348] [2024-11-10 14:27:37,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:27:37,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:27:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:27:37,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:27:37,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:27:37,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598032348] [2024-11-10 14:27:37,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598032348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:27:37,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:27:37,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:27:37,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844370571] [2024-11-10 14:27:37,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:27:37,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:27:37,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:27:37,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:27:37,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:27:38,874 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 882 out of 1230 [2024-11-10 14:27:38,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1119 places, 1137 transitions, 2299 flow. Second operand has 6 states, 6 states have (on average 883.5) internal successors, (5301), 6 states have internal predecessors, (5301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:27:38,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:27:38,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 882 of 1230 [2024-11-10 14:27:38,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand