./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.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 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:35:18,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:35:18,265 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:35:18,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:35:18,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:35:18,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:35:18,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:35:18,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:35:18,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:35:18,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:35:18,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:35:18,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:35:18,305 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:35:18,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:35:18,309 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:35:18,310 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:35:18,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:35:18,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:35:18,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:35:18,311 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:35:18,311 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:35:18,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:35:18,312 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:35:18,315 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:35:18,315 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:35:18,315 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:35:18,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:35:18,316 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:35:18,316 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:35:18,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:35:18,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:35:18,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:35:18,317 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:35:18,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:35:18,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:35:18,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:35:18,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:35:18,318 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:35:18,318 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:35:18,319 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:35:18,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:35:18,320 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e [2024-11-16 23:35:18,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:35:18,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:35:18,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:35:18,600 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:35:18,601 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:35:18,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2024-11-16 23:35:20,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:35:20,436 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:35:20,437 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2024-11-16 23:35:20,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfd885df6/89fe5a8010144ce3a49e5f3af4f62df3/FLAG548cab19c [2024-11-16 23:35:20,486 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfd885df6/89fe5a8010144ce3a49e5f3af4f62df3 [2024-11-16 23:35:20,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:35:20,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:35:20,494 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:35:20,494 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:35:20,500 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:35:20,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:35:20" (1/1) ... [2024-11-16 23:35:20,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@725e636f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:20, skipping insertion in model container [2024-11-16 23:35:20,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:35:20" (1/1) ... [2024-11-16 23:35:20,573 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:35:21,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:35:21,352 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:35:21,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:35:21,541 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:35:21,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21 WrapperNode [2024-11-16 23:35:21,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:35:21,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:35:21,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:35:21,543 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:35:21,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21" (1/1) ... [2024-11-16 23:35:21,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21" (1/1) ... [2024-11-16 23:35:21,610 INFO L138 Inliner]: procedures = 525, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 117 [2024-11-16 23:35:21,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:35:21,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:35:21,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:35:21,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:35:21,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21" (1/1) ... [2024-11-16 23:35:21,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21" (1/1) ... [2024-11-16 23:35:21,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21" (1/1) ... [2024-11-16 23:35:21,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21" (1/1) ... [2024-11-16 23:35:21,644 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21" (1/1) ... [2024-11-16 23:35:21,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21" (1/1) ... [2024-11-16 23:35:21,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21" (1/1) ... [2024-11-16 23:35:21,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21" (1/1) ... [2024-11-16 23:35:21,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:35:21,659 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:35:21,659 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:35:21,659 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:35:21,660 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21" (1/1) ... [2024-11-16 23:35:21,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:35:21,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:35:21,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:35:21,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:35:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2024-11-16 23:35:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2024-11-16 23:35:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2024-11-16 23:35:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2024-11-16 23:35:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:35:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:35:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:35:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:35:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:35:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-16 23:35:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:35:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:35:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:35:21,764 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:35:22,046 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:35:22,049 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:35:22,427 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:35:22,427 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:35:22,465 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:35:22,465 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:35:22,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:35:22 BoogieIcfgContainer [2024-11-16 23:35:22,466 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:35:22,469 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:35:22,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:35:22,472 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:35:22,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:35:20" (1/3) ... [2024-11-16 23:35:22,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6626b17f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:35:22, skipping insertion in model container [2024-11-16 23:35:22,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:35:21" (2/3) ... [2024-11-16 23:35:22,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6626b17f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:35:22, skipping insertion in model container [2024-11-16 23:35:22,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:35:22" (3/3) ... [2024-11-16 23:35:22,474 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2024-11-16 23:35:22,490 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:35:22,491 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-16 23:35:22,491 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:35:22,581 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 23:35:22,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 272 transitions, 558 flow [2024-11-16 23:35:22,697 INFO L124 PetriNetUnfolderBase]: 40/270 cut-off events. [2024-11-16 23:35:22,697 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:35:22,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 270 events. 40/270 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 837 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 192. Up to 5 conditions per place. [2024-11-16 23:35:22,708 INFO L82 GeneralOperation]: Start removeDead. Operand has 239 places, 272 transitions, 558 flow [2024-11-16 23:35:22,715 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 260 transitions, 532 flow [2024-11-16 23:35:22,726 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:35:22,733 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;@3e44043f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:35:22,733 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-16 23:35:22,740 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:35:22,740 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2024-11-16 23:35:22,740 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:35:22,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:22,741 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:22,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr3ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:35:22,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:22,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1654820232, now seen corresponding path program 1 times [2024-11-16 23:35:22,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:22,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548352470] [2024-11-16 23:35:22,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:22,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:23,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:23,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:23,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548352470] [2024-11-16 23:35:23,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548352470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:23,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:23,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:35:23,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744259999] [2024-11-16 23:35:23,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:23,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:35:23,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:23,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:35:23,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:35:23,242 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 272 [2024-11-16 23:35:23,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 260 transitions, 532 flow. Second operand has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:23,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:23,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 272 [2024-11-16 23:35:23,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:23,405 INFO L124 PetriNetUnfolderBase]: 46/541 cut-off events. [2024-11-16 23:35:23,406 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-16 23:35:23,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 541 events. 46/541 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2938 event pairs, 15 based on Foata normal form. 99/553 useless extension candidates. Maximal degree in co-relation 470. Up to 48 conditions per place. [2024-11-16 23:35:23,417 INFO L140 encePairwiseOnDemand]: 251/272 looper letters, 13 selfloop transitions, 2 changer transitions 9/226 dead transitions. [2024-11-16 23:35:23,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 226 transitions, 494 flow [2024-11-16 23:35:23,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:35:23,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:35:23,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 718 transitions. [2024-11-16 23:35:23,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8799019607843137 [2024-11-16 23:35:23,439 INFO L175 Difference]: Start difference. First operand has 230 places, 260 transitions, 532 flow. Second operand 3 states and 718 transitions. [2024-11-16 23:35:23,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 226 transitions, 494 flow [2024-11-16 23:35:23,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 226 transitions, 486 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-16 23:35:23,449 INFO L231 Difference]: Finished difference. Result has 219 places, 217 transitions, 442 flow [2024-11-16 23:35:23,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=442, PETRI_PLACES=219, PETRI_TRANSITIONS=217} [2024-11-16 23:35:23,458 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -11 predicate places. [2024-11-16 23:35:23,458 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 217 transitions, 442 flow [2024-11-16 23:35:23,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:23,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:23,459 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:23,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:35:23,460 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting counter_threadErr4ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr3ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:35:23,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:23,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1539912298, now seen corresponding path program 1 times [2024-11-16 23:35:23,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:23,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122398995] [2024-11-16 23:35:23,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:23,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:23,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:23,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:23,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122398995] [2024-11-16 23:35:23,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122398995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:23,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:23,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:35:23,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996967578] [2024-11-16 23:35:23,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:23,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:35:23,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:23,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:35:23,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:35:23,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 272 [2024-11-16 23:35:23,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 217 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:23,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:23,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 272 [2024-11-16 23:35:23,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:23,704 INFO L124 PetriNetUnfolderBase]: 68/687 cut-off events. [2024-11-16 23:35:23,707 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-16 23:35:23,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 687 events. 68/687 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4256 event pairs, 19 based on Foata normal form. 0/579 useless extension candidates. Maximal degree in co-relation 736. Up to 69 conditions per place. [2024-11-16 23:35:23,715 INFO L140 encePairwiseOnDemand]: 268/272 looper letters, 14 selfloop transitions, 2 changer transitions 0/218 dead transitions. [2024-11-16 23:35:23,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 218 transitions, 477 flow [2024-11-16 23:35:23,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:35:23,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:35:23,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 708 transitions. [2024-11-16 23:35:23,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8676470588235294 [2024-11-16 23:35:23,723 INFO L175 Difference]: Start difference. First operand has 219 places, 217 transitions, 442 flow. Second operand 3 states and 708 transitions. [2024-11-16 23:35:23,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 218 transitions, 477 flow [2024-11-16 23:35:23,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 218 transitions, 473 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:35:23,733 INFO L231 Difference]: Finished difference. Result has 210 places, 217 transitions, 448 flow [2024-11-16 23:35:23,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=448, PETRI_PLACES=210, PETRI_TRANSITIONS=217} [2024-11-16 23:35:23,735 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -20 predicate places. [2024-11-16 23:35:23,735 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 217 transitions, 448 flow [2024-11-16 23:35:23,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:23,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:23,736 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:23,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:35:23,737 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr3ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:35:23,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:23,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1670818511, now seen corresponding path program 1 times [2024-11-16 23:35:23,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:23,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408795695] [2024-11-16 23:35:23,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:23,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:23,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:23,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:23,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408795695] [2024-11-16 23:35:23,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408795695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:23,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:23,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:35:23,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510486320] [2024-11-16 23:35:23,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:23,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:35:23,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:23,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:35:23,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:35:23,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 272 [2024-11-16 23:35:23,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 217 transitions, 448 flow. Second operand has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:23,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:23,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 272 [2024-11-16 23:35:23,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:24,126 INFO L124 PetriNetUnfolderBase]: 442/2196 cut-off events. [2024-11-16 23:35:24,126 INFO L125 PetriNetUnfolderBase]: For 8/13 co-relation queries the response was YES. [2024-11-16 23:35:24,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2723 conditions, 2196 events. 442/2196 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 18714 event pairs, 162 based on Foata normal form. 2/1888 useless extension candidates. Maximal degree in co-relation 2461. Up to 461 conditions per place. [2024-11-16 23:35:24,145 INFO L140 encePairwiseOnDemand]: 256/272 looper letters, 26 selfloop transitions, 7 changer transitions 6/222 dead transitions. [2024-11-16 23:35:24,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 222 transitions, 532 flow [2024-11-16 23:35:24,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:35:24,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:35:24,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2024-11-16 23:35:24,149 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8370098039215687 [2024-11-16 23:35:24,149 INFO L175 Difference]: Start difference. First operand has 210 places, 217 transitions, 448 flow. Second operand 3 states and 683 transitions. [2024-11-16 23:35:24,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 222 transitions, 532 flow [2024-11-16 23:35:24,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 222 transitions, 532 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:35:24,153 INFO L231 Difference]: Finished difference. Result has 205 places, 210 transitions, 466 flow [2024-11-16 23:35:24,154 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=466, PETRI_PLACES=205, PETRI_TRANSITIONS=210} [2024-11-16 23:35:24,154 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -25 predicate places. [2024-11-16 23:35:24,155 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 210 transitions, 466 flow [2024-11-16 23:35:24,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:24,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:24,155 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] [2024-11-16 23:35:24,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:35:24,156 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr3ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:35:24,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:24,156 INFO L85 PathProgramCache]: Analyzing trace with hash 289405881, now seen corresponding path program 1 times [2024-11-16 23:35:24,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:24,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530369729] [2024-11-16 23:35:24,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:24,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:24,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:24,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:24,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530369729] [2024-11-16 23:35:24,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530369729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:24,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:24,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:35:24,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135256627] [2024-11-16 23:35:24,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:24,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:35:24,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:24,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:35:24,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:35:24,265 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 272 [2024-11-16 23:35:24,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 210 transitions, 466 flow. Second operand has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:24,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:24,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 272 [2024-11-16 23:35:24,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:24,485 INFO L124 PetriNetUnfolderBase]: 212/1589 cut-off events. [2024-11-16 23:35:24,486 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-16 23:35:24,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1924 conditions, 1589 events. 212/1589 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 11652 event pairs, 21 based on Foata normal form. 0/1403 useless extension candidates. Maximal degree in co-relation 1730. Up to 135 conditions per place. [2024-11-16 23:35:24,502 INFO L140 encePairwiseOnDemand]: 266/272 looper letters, 18 selfloop transitions, 4 changer transitions 0/218 dead transitions. [2024-11-16 23:35:24,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 218 transitions, 528 flow [2024-11-16 23:35:24,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:35:24,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:35:24,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 714 transitions. [2024-11-16 23:35:24,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.875 [2024-11-16 23:35:24,505 INFO L175 Difference]: Start difference. First operand has 205 places, 210 transitions, 466 flow. Second operand 3 states and 714 transitions. [2024-11-16 23:35:24,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 218 transitions, 528 flow [2024-11-16 23:35:24,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 218 transitions, 528 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:35:24,511 INFO L231 Difference]: Finished difference. Result has 203 places, 212 transitions, 494 flow [2024-11-16 23:35:24,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=203, PETRI_TRANSITIONS=212} [2024-11-16 23:35:24,513 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -27 predicate places. [2024-11-16 23:35:24,513 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 212 transitions, 494 flow [2024-11-16 23:35:24,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:24,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:24,515 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] [2024-11-16 23:35:24,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:35:24,516 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting counter_threadErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr3ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:35:24,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:24,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1903120434, now seen corresponding path program 1 times [2024-11-16 23:35:24,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:24,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556325140] [2024-11-16 23:35:24,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:24,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:24,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:24,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:24,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556325140] [2024-11-16 23:35:24,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556325140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:24,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:24,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:35:24,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487611395] [2024-11-16 23:35:24,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:24,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:35:24,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:24,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:35:24,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:35:24,628 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 272 [2024-11-16 23:35:24,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 212 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:24,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:24,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 272 [2024-11-16 23:35:24,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:24,960 INFO L124 PetriNetUnfolderBase]: 348/2489 cut-off events. [2024-11-16 23:35:24,960 INFO L125 PetriNetUnfolderBase]: For 114/117 co-relation queries the response was YES. [2024-11-16 23:35:24,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3103 conditions, 2489 events. 348/2489 cut-off events. For 114/117 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 20687 event pairs, 42 based on Foata normal form. 2/2192 useless extension candidates. Maximal degree in co-relation 2904. Up to 226 conditions per place. [2024-11-16 23:35:24,986 INFO L140 encePairwiseOnDemand]: 267/272 looper letters, 20 selfloop transitions, 6 changer transitions 0/223 dead transitions. [2024-11-16 23:35:24,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 223 transitions, 582 flow [2024-11-16 23:35:24,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:35:24,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:35:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 716 transitions. [2024-11-16 23:35:24,989 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8774509803921569 [2024-11-16 23:35:24,989 INFO L175 Difference]: Start difference. First operand has 203 places, 212 transitions, 494 flow. Second operand 3 states and 716 transitions. [2024-11-16 23:35:24,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 223 transitions, 582 flow [2024-11-16 23:35:24,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 223 transitions, 570 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:35:24,994 INFO L231 Difference]: Finished difference. Result has 205 places, 217 transitions, 540 flow [2024-11-16 23:35:24,994 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=540, PETRI_PLACES=205, PETRI_TRANSITIONS=217} [2024-11-16 23:35:24,995 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -25 predicate places. [2024-11-16 23:35:24,995 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 217 transitions, 540 flow [2024-11-16 23:35:24,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:24,996 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:24,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:24,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:35:24,997 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting monitor_threadErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr3ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:35:24,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:24,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1655571546, now seen corresponding path program 1 times [2024-11-16 23:35:24,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:24,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030442237] [2024-11-16 23:35:24,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:24,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:25,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:25,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030442237] [2024-11-16 23:35:25,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030442237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:25,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:25,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:35:25,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426912286] [2024-11-16 23:35:25,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:25,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:35:25,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:25,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:35:25,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:35:25,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 272 [2024-11-16 23:35:25,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 217 transitions, 540 flow. Second operand has 5 states, 5 states have (on average 228.8) internal successors, (1144), 5 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:25,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:25,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 272 [2024-11-16 23:35:25,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:26,138 INFO L124 PetriNetUnfolderBase]: 792/5151 cut-off events. [2024-11-16 23:35:26,138 INFO L125 PetriNetUnfolderBase]: For 291/304 co-relation queries the response was YES. [2024-11-16 23:35:26,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6683 conditions, 5151 events. 792/5151 cut-off events. For 291/304 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 51164 event pairs, 74 based on Foata normal form. 4/4581 useless extension candidates. Maximal degree in co-relation 6434. Up to 413 conditions per place. [2024-11-16 23:35:26,179 INFO L140 encePairwiseOnDemand]: 262/272 looper letters, 31 selfloop transitions, 23 changer transitions 0/254 dead transitions. [2024-11-16 23:35:26,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 254 transitions, 726 flow [2024-11-16 23:35:26,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:35:26,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:35:26,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2099 transitions. [2024-11-16 23:35:26,184 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8574346405228758 [2024-11-16 23:35:26,184 INFO L175 Difference]: Start difference. First operand has 205 places, 217 transitions, 540 flow. Second operand 9 states and 2099 transitions. [2024-11-16 23:35:26,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 254 transitions, 726 flow [2024-11-16 23:35:26,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 254 transitions, 714 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:35:26,191 INFO L231 Difference]: Finished difference. Result has 219 places, 239 transitions, 698 flow [2024-11-16 23:35:26,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=698, PETRI_PLACES=219, PETRI_TRANSITIONS=239} [2024-11-16 23:35:26,192 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -11 predicate places. [2024-11-16 23:35:26,193 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 239 transitions, 698 flow [2024-11-16 23:35:26,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 228.8) internal successors, (1144), 5 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:26,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:26,194 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:26,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:35:26,194 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting monitor_threadErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr3ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:35:26,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:26,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1397909926, now seen corresponding path program 2 times [2024-11-16 23:35:26,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:26,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606934980] [2024-11-16 23:35:26,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:26,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:26,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:26,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:26,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606934980] [2024-11-16 23:35:26,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606934980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:26,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:26,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:35:26,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752334393] [2024-11-16 23:35:26,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:26,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:35:26,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:26,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:35:26,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:35:26,460 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 272 [2024-11-16 23:35:26,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 239 transitions, 698 flow. Second operand has 5 states, 5 states have (on average 228.8) internal successors, (1144), 5 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:26,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:26,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 272 [2024-11-16 23:35:26,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:27,563 INFO L124 PetriNetUnfolderBase]: 1056/7167 cut-off events. [2024-11-16 23:35:27,563 INFO L125 PetriNetUnfolderBase]: For 1716/1898 co-relation queries the response was YES. [2024-11-16 23:35:27,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10329 conditions, 7167 events. 1056/7167 cut-off events. For 1716/1898 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 78611 event pairs, 65 based on Foata normal form. 40/6460 useless extension candidates. Maximal degree in co-relation 10034. Up to 576 conditions per place. [2024-11-16 23:35:27,628 INFO L140 encePairwiseOnDemand]: 262/272 looper letters, 39 selfloop transitions, 33 changer transitions 0/272 dead transitions. [2024-11-16 23:35:27,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 272 transitions, 1009 flow [2024-11-16 23:35:27,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:35:27,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:35:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1410 transitions. [2024-11-16 23:35:27,632 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8639705882352942 [2024-11-16 23:35:27,632 INFO L175 Difference]: Start difference. First operand has 219 places, 239 transitions, 698 flow. Second operand 6 states and 1410 transitions. [2024-11-16 23:35:27,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 272 transitions, 1009 flow [2024-11-16 23:35:27,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 272 transitions, 1009 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:35:27,642 INFO L231 Difference]: Finished difference. Result has 229 places, 260 transitions, 968 flow [2024-11-16 23:35:27,642 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=968, PETRI_PLACES=229, PETRI_TRANSITIONS=260} [2024-11-16 23:35:27,643 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -1 predicate places. [2024-11-16 23:35:27,643 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 260 transitions, 968 flow [2024-11-16 23:35:27,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 228.8) internal successors, (1144), 5 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:27,644 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:27,644 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:27,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:35:27,645 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting monitor_threadErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr3ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:35:27,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash 2036729924, now seen corresponding path program 3 times [2024-11-16 23:35:27,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:27,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017737856] [2024-11-16 23:35:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:27,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:27,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:27,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:27,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017737856] [2024-11-16 23:35:27,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017737856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:27,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:27,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:35:27,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062348185] [2024-11-16 23:35:27,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:27,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:35:27,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:27,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:35:27,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:35:27,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 272 [2024-11-16 23:35:27,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 260 transitions, 968 flow. Second operand has 5 states, 5 states have (on average 228.8) internal successors, (1144), 5 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:27,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:27,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 272 [2024-11-16 23:35:27,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:29,292 INFO L124 PetriNetUnfolderBase]: 1247/8237 cut-off events. [2024-11-16 23:35:29,292 INFO L125 PetriNetUnfolderBase]: For 5406/5839 co-relation queries the response was YES. [2024-11-16 23:35:29,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13152 conditions, 8237 events. 1247/8237 cut-off events. For 5406/5839 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 92207 event pairs, 77 based on Foata normal form. 156/7530 useless extension candidates. Maximal degree in co-relation 12822. Up to 660 conditions per place. [2024-11-16 23:35:29,408 INFO L140 encePairwiseOnDemand]: 259/272 looper letters, 40 selfloop transitions, 68 changer transitions 0/308 dead transitions. [2024-11-16 23:35:29,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 308 transitions, 1536 flow [2024-11-16 23:35:29,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:35:29,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 23:35:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1652 transitions. [2024-11-16 23:35:29,414 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8676470588235294 [2024-11-16 23:35:29,414 INFO L175 Difference]: Start difference. First operand has 229 places, 260 transitions, 968 flow. Second operand 7 states and 1652 transitions. [2024-11-16 23:35:29,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 308 transitions, 1536 flow [2024-11-16 23:35:29,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 308 transitions, 1520 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-11-16 23:35:29,435 INFO L231 Difference]: Finished difference. Result has 241 places, 295 transitions, 1555 flow [2024-11-16 23:35:29,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1555, PETRI_PLACES=241, PETRI_TRANSITIONS=295} [2024-11-16 23:35:29,437 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, 11 predicate places. [2024-11-16 23:35:29,438 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 295 transitions, 1555 flow [2024-11-16 23:35:29,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 228.8) internal successors, (1144), 5 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:29,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:35:29,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:35:29,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:35:29,440 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr3ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:35:29,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:35:29,444 INFO L85 PathProgramCache]: Analyzing trace with hash -696095552, now seen corresponding path program 4 times [2024-11-16 23:35:29,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:35:29,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474714378] [2024-11-16 23:35:29,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:35:29,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:35:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:35:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:35:29,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:35:29,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474714378] [2024-11-16 23:35:29,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474714378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:35:29,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:35:29,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:35:29,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241142937] [2024-11-16 23:35:29,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:35:29,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:35:29,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:35:29,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:35:29,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:35:29,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 272 [2024-11-16 23:35:29,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 295 transitions, 1555 flow. Second operand has 5 states, 5 states have (on average 228.8) internal successors, (1144), 5 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:29,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:35:29,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 272 [2024-11-16 23:35:29,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:35:30,573 INFO L124 PetriNetUnfolderBase]: 763/5322 cut-off events. [2024-11-16 23:35:30,574 INFO L125 PetriNetUnfolderBase]: For 6871/7435 co-relation queries the response was YES. [2024-11-16 23:35:30,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9046 conditions, 5322 events. 763/5322 cut-off events. For 6871/7435 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 56512 event pairs, 52 based on Foata normal form. 132/4901 useless extension candidates. Maximal degree in co-relation 8689. Up to 424 conditions per place. [2024-11-16 23:35:30,611 INFO L140 encePairwiseOnDemand]: 262/272 looper letters, 0 selfloop transitions, 0 changer transitions 297/297 dead transitions. [2024-11-16 23:35:30,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 297 transitions, 1802 flow [2024-11-16 23:35:30,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:35:30,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 23:35:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1645 transitions. [2024-11-16 23:35:30,615 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8639705882352942 [2024-11-16 23:35:30,615 INFO L175 Difference]: Start difference. First operand has 241 places, 295 transitions, 1555 flow. Second operand 7 states and 1645 transitions. [2024-11-16 23:35:30,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 297 transitions, 1802 flow [2024-11-16 23:35:30,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 297 transitions, 1662 flow, removed 25 selfloop flow, removed 3 redundant places. [2024-11-16 23:35:30,636 INFO L231 Difference]: Finished difference. Result has 242 places, 0 transitions, 0 flow [2024-11-16 23:35:30,637 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=1287, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=242, PETRI_TRANSITIONS=0} [2024-11-16 23:35:30,638 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, 12 predicate places. [2024-11-16 23:35:30,638 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 0 transitions, 0 flow [2024-11-16 23:35:30,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 228.8) internal successors, (1144), 5 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:35:30,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 25 remaining) [2024-11-16 23:35:30,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2024-11-16 23:35:30,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2024-11-16 23:35:30,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2024-11-16 23:35:30,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2024-11-16 23:35:30,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2024-11-16 23:35:30,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2024-11-16 23:35:30,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2024-11-16 23:35:30,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2024-11-16 23:35:30,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2024-11-16 23:35:30,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2024-11-16 23:35:30,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2024-11-16 23:35:30,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2024-11-16 23:35:30,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2024-11-16 23:35:30,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2024-11-16 23:35:30,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 25 remaining) [2024-11-16 23:35:30,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2024-11-16 23:35:30,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2024-11-16 23:35:30,650 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2024-11-16 23:35:30,650 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2024-11-16 23:35:30,650 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2024-11-16 23:35:30,650 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2024-11-16 23:35:30,650 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2024-11-16 23:35:30,650 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2024-11-16 23:35:30,650 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2024-11-16 23:35:30,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:35:30,651 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2024-11-16 23:35:30,659 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 23:35:30,659 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 23:35:30,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:35:30 BasicIcfg [2024-11-16 23:35:30,669 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 23:35:30,670 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 23:35:30,670 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 23:35:30,670 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 23:35:30,671 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:35:22" (3/4) ... [2024-11-16 23:35:30,672 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 23:35:30,675 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2024-11-16 23:35:30,676 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure counter_thread [2024-11-16 23:35:30,680 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-16 23:35:30,680 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-16 23:35:30,681 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 23:35:30,784 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 23:35:30,785 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 23:35:30,785 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 23:35:30,786 INFO L158 Benchmark]: Toolchain (without parser) took 10294.83ms. Allocated memory was 167.8MB in the beginning and 759.2MB in the end (delta: 591.4MB). Free memory was 93.0MB in the beginning and 394.3MB in the end (delta: -301.3MB). Peak memory consumption was 292.2MB. Max. memory is 16.1GB. [2024-11-16 23:35:30,786 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 167.8MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 23:35:30,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1048.61ms. Allocated memory is still 167.8MB. Free memory was 92.8MB in the beginning and 78.0MB in the end (delta: 14.8MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2024-11-16 23:35:30,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.80ms. Allocated memory is still 167.8MB. Free memory was 78.0MB in the beginning and 74.5MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:35:30,787 INFO L158 Benchmark]: Boogie Preprocessor took 45.82ms. Allocated memory is still 167.8MB. Free memory was 74.5MB in the beginning and 71.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 23:35:30,787 INFO L158 Benchmark]: IcfgBuilder took 807.58ms. Allocated memory is still 167.8MB. Free memory was 71.7MB in the beginning and 124.7MB in the end (delta: -53.0MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2024-11-16 23:35:30,787 INFO L158 Benchmark]: TraceAbstraction took 8200.47ms. Allocated memory was 167.8MB in the beginning and 759.2MB in the end (delta: 591.4MB). Free memory was 123.8MB in the beginning and 399.5MB in the end (delta: -275.7MB). Peak memory consumption was 395.4MB. Max. memory is 16.1GB. [2024-11-16 23:35:30,787 INFO L158 Benchmark]: Witness Printer took 115.39ms. Allocated memory is still 759.2MB. Free memory was 399.5MB in the beginning and 394.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 23:35:30,789 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 167.8MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1048.61ms. Allocated memory is still 167.8MB. Free memory was 92.8MB in the beginning and 78.0MB in the end (delta: 14.8MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.80ms. Allocated memory is still 167.8MB. Free memory was 78.0MB in the beginning and 74.5MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.82ms. Allocated memory is still 167.8MB. Free memory was 74.5MB in the beginning and 71.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 807.58ms. Allocated memory is still 167.8MB. Free memory was 71.7MB in the beginning and 124.7MB in the end (delta: -53.0MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8200.47ms. Allocated memory was 167.8MB in the beginning and 759.2MB in the end (delta: 591.4MB). Free memory was 123.8MB in the beginning and 399.5MB in the end (delta: -275.7MB). Peak memory consumption was 395.4MB. Max. memory is 16.1GB. * Witness Printer took 115.39ms. Allocated memory is still 759.2MB. Free memory was 399.5MB in the beginning and 394.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1819]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1824]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1825]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1828]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1803]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1806]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1811]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1843]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1846]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1849]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1852]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1855]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 358 locations, 25 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 348 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 220 mSDsluCounter, 154 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 82 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 575 IncrementalHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 82 mSolverCounterUnsat, 64 mSDtfsCounter, 575 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1555occurred in iteration=8, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 530 NumberOfCodeBlocks, 530 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 521 ConstructedInterpolants, 0 QuantifiedInterpolants, 886 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-16 23:35:30,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE