./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/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-dev-4a390ef-m [2024-10-24 15:22:36,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:22:36,798 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:22:36,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:22:36,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:22:36,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:22:36,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:22:36,835 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:22:36,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:22:36,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:22:36,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:22:36,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:22:36,837 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:22:36,837 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:22:36,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:22:36,838 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:22:36,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:22:36,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:22:36,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:22:36,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:22:36,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:22:36,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:22:36,845 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:22:36,846 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:22:36,846 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:22:36,846 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:22:36,847 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:22:36,847 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:22:36,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:22:36,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:22:36,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:22:36,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:22:36,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:22:36,849 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:22:36,849 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:22:36,850 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:22:36,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:22:36,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:22:36,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:22:36,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:22:36,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:22:36,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e [2024-10-24 15:22:37,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:22:37,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:22:37,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:22:37,156 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:22:37,157 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:22:37,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2024-10-24 15:22:38,607 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:22:38,919 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:22:38,923 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2024-10-24 15:22:38,949 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebd2c137c/e6385461f11747c79090a1f3a2ce16ae/FLAGba18b81e1 [2024-10-24 15:22:38,970 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebd2c137c/e6385461f11747c79090a1f3a2ce16ae [2024-10-24 15:22:38,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:22:38,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:22:38,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:22:38,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:22:38,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:22:38,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:22:38" (1/1) ... [2024-10-24 15:22:38,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b8676e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:38, skipping insertion in model container [2024-10-24 15:22:38,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:22:38" (1/1) ... [2024-10-24 15:22:39,055 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:22:39,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:22:39,753 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:22:39,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:22:40,039 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:22:40,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40 WrapperNode [2024-10-24 15:22:40,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:22:40,045 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:22:40,045 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:22:40,045 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:22:40,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40" (1/1) ... [2024-10-24 15:22:40,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40" (1/1) ... [2024-10-24 15:22:40,133 INFO L138 Inliner]: procedures = 525, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 121 [2024-10-24 15:22:40,133 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:22:40,134 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:22:40,134 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:22:40,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:22:40,144 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40" (1/1) ... [2024-10-24 15:22:40,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40" (1/1) ... [2024-10-24 15:22:40,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40" (1/1) ... [2024-10-24 15:22:40,153 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40" (1/1) ... [2024-10-24 15:22:40,168 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40" (1/1) ... [2024-10-24 15:22:40,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40" (1/1) ... [2024-10-24 15:22:40,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40" (1/1) ... [2024-10-24 15:22:40,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40" (1/1) ... [2024-10-24 15:22:40,185 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:22:40,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:22:40,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:22:40,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:22:40,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40" (1/1) ... [2024-10-24 15:22:40,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:22:40,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:22:40,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:22:40,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:22:40,271 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2024-10-24 15:22:40,271 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2024-10-24 15:22:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2024-10-24 15:22:40,272 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2024-10-24 15:22:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:22:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:22:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:22:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:22:40,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:22:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-10-24 15:22:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:22:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:22:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:22:40,277 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:22:40,584 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:22:40,587 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:22:40,955 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:22:40,956 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:22:40,983 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:22:40,984 INFO L314 CfgBuilder]: Removed 19 assume(true) statements. [2024-10-24 15:22:40,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:22:40 BoogieIcfgContainer [2024-10-24 15:22:40,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:22:40,989 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:22:40,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:22:40,994 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:22:40,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:22:38" (1/3) ... [2024-10-24 15:22:40,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b987208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:22:40, skipping insertion in model container [2024-10-24 15:22:40,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:40" (2/3) ... [2024-10-24 15:22:40,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b987208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:22:40, skipping insertion in model container [2024-10-24 15:22:40,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:22:40" (3/3) ... [2024-10-24 15:22:40,998 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2024-10-24 15:22:41,013 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:22:41,014 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-24 15:22:41,014 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:22:41,123 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 15:22:41,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 271 transitions, 556 flow [2024-10-24 15:22:41,251 INFO L124 PetriNetUnfolderBase]: 40/269 cut-off events. [2024-10-24 15:22:41,252 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 15:22:41,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 269 events. 40/269 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 812 event pairs, 0 based on Foata normal form. 0/215 useless extension candidates. Maximal degree in co-relation 191. Up to 5 conditions per place. [2024-10-24 15:22:41,267 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 271 transitions, 556 flow [2024-10-24 15:22:41,279 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 259 transitions, 530 flow [2024-10-24 15:22:41,293 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:22:41,300 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;@3b4eebaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:22:41,301 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-24 15:22:41,307 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:22:41,307 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-10-24 15:22:41,307 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:22:41,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:41,308 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:22:41,309 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:22:41,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:41,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1413834925, now seen corresponding path program 1 times [2024-10-24 15:22:41,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:41,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475607137] [2024-10-24 15:22:41,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:41,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:41,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:41,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:41,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475607137] [2024-10-24 15:22:41,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475607137] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:41,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:41,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:22:41,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828102633] [2024-10-24 15:22:41,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:41,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:41,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:41,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:41,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:41,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 271 [2024-10-24 15:22:41,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 259 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:41,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:41,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 271 [2024-10-24 15:22:41,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:41,954 INFO L124 PetriNetUnfolderBase]: 46/536 cut-off events. [2024-10-24 15:22:41,954 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-24 15:22:41,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 536 events. 46/536 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2894 event pairs, 15 based on Foata normal form. 99/548 useless extension candidates. Maximal degree in co-relation 465. Up to 48 conditions per place. [2024-10-24 15:22:41,964 INFO L140 encePairwiseOnDemand]: 250/271 looper letters, 13 selfloop transitions, 2 changer transitions 9/225 dead transitions. [2024-10-24 15:22:41,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 225 transitions, 492 flow [2024-10-24 15:22:41,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:41,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:41,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 715 transitions. [2024-10-24 15:22:41,987 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8794587945879458 [2024-10-24 15:22:41,992 INFO L175 Difference]: Start difference. First operand has 229 places, 259 transitions, 530 flow. Second operand 3 states and 715 transitions. [2024-10-24 15:22:41,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 225 transitions, 492 flow [2024-10-24 15:22:41,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 225 transitions, 484 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 15:22:42,003 INFO L231 Difference]: Finished difference. Result has 218 places, 216 transitions, 440 flow [2024-10-24 15:22:42,006 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=440, PETRI_PLACES=218, PETRI_TRANSITIONS=216} [2024-10-24 15:22:42,011 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, -11 predicate places. [2024-10-24 15:22:42,011 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 216 transitions, 440 flow [2024-10-24 15:22:42,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:42,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:42,013 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] [2024-10-24 15:22:42,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:22:42,013 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:22:42,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:42,015 INFO L85 PathProgramCache]: Analyzing trace with hash 162681058, now seen corresponding path program 1 times [2024-10-24 15:22:42,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:42,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183687656] [2024-10-24 15:22:42,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:42,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:42,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:42,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:42,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183687656] [2024-10-24 15:22:42,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183687656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:42,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:42,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:22:42,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693561207] [2024-10-24 15:22:42,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:42,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:42,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:42,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:42,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:42,198 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 271 [2024-10-24 15:22:42,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 216 transitions, 440 flow. Second operand has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:42,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:42,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 271 [2024-10-24 15:22:42,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:42,460 INFO L124 PetriNetUnfolderBase]: 355/1508 cut-off events. [2024-10-24 15:22:42,464 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-24 15:22:42,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1952 conditions, 1508 events. 355/1508 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11573 event pairs, 96 based on Foata normal form. 1/1354 useless extension candidates. Maximal degree in co-relation 1919. Up to 407 conditions per place. [2024-10-24 15:22:42,530 INFO L140 encePairwiseOnDemand]: 255/271 looper letters, 27 selfloop transitions, 7 changer transitions 5/221 dead transitions. [2024-10-24 15:22:42,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 221 transitions, 524 flow [2024-10-24 15:22:42,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:42,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:42,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 680 transitions. [2024-10-24 15:22:42,535 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8364083640836408 [2024-10-24 15:22:42,535 INFO L175 Difference]: Start difference. First operand has 218 places, 216 transitions, 440 flow. Second operand 3 states and 680 transitions. [2024-10-24 15:22:42,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 221 transitions, 524 flow [2024-10-24 15:22:42,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 221 transitions, 520 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:22:42,542 INFO L231 Difference]: Finished difference. Result has 203 places, 210 transitions, 458 flow [2024-10-24 15:22:42,544 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=203, PETRI_TRANSITIONS=210} [2024-10-24 15:22:42,545 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, -26 predicate places. [2024-10-24 15:22:42,546 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 210 transitions, 458 flow [2024-10-24 15:22:42,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:42,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:42,547 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] [2024-10-24 15:22:42,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:22:42,548 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:22:42,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:42,549 INFO L85 PathProgramCache]: Analyzing trace with hash 67623068, now seen corresponding path program 1 times [2024-10-24 15:22:42,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:42,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562260225] [2024-10-24 15:22:42,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:42,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:42,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:42,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562260225] [2024-10-24 15:22:42,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562260225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:42,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:42,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:22:42,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11955189] [2024-10-24 15:22:42,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:42,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:42,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:42,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:42,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:42,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 271 [2024-10-24 15:22:42,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 210 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:42,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:42,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 271 [2024-10-24 15:22:42,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:42,760 INFO L124 PetriNetUnfolderBase]: 123/927 cut-off events. [2024-10-24 15:22:42,761 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-24 15:22:42,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1108 conditions, 927 events. 123/927 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6179 event pairs, 20 based on Foata normal form. 0/816 useless extension candidates. Maximal degree in co-relation 548. Up to 78 conditions per place. [2024-10-24 15:22:42,769 INFO L140 encePairwiseOnDemand]: 267/271 looper letters, 13 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2024-10-24 15:22:42,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 211 transitions, 491 flow [2024-10-24 15:22:42,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:42,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 704 transitions. [2024-10-24 15:22:42,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8659286592865929 [2024-10-24 15:22:42,773 INFO L175 Difference]: Start difference. First operand has 203 places, 210 transitions, 458 flow. Second operand 3 states and 704 transitions. [2024-10-24 15:22:42,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 211 transitions, 491 flow [2024-10-24 15:22:42,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 211 transitions, 491 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:22:42,777 INFO L231 Difference]: Finished difference. Result has 199 places, 210 transitions, 468 flow [2024-10-24 15:22:42,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=468, PETRI_PLACES=199, PETRI_TRANSITIONS=210} [2024-10-24 15:22:42,779 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, -30 predicate places. [2024-10-24 15:22:42,779 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 210 transitions, 468 flow [2024-10-24 15:22:42,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:42,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:42,781 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] [2024-10-24 15:22:42,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:22:42,781 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:22:42,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:42,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1897900008, now seen corresponding path program 1 times [2024-10-24 15:22:42,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:42,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815260905] [2024-10-24 15:22:42,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:42,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:42,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:42,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815260905] [2024-10-24 15:22:42,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815260905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:42,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:42,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:22:42,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424401315] [2024-10-24 15:22:42,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:42,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:42,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:42,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:42,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:42,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 271 [2024-10-24 15:22:42,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 210 transitions, 468 flow. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:42,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:42,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 271 [2024-10-24 15:22:42,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:43,110 INFO L124 PetriNetUnfolderBase]: 216/1589 cut-off events. [2024-10-24 15:22:43,110 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-24 15:22:43,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1928 conditions, 1589 events. 216/1589 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11765 event pairs, 21 based on Foata normal form. 0/1403 useless extension candidates. Maximal degree in co-relation 1734. Up to 139 conditions per place. [2024-10-24 15:22:43,122 INFO L140 encePairwiseOnDemand]: 265/271 looper letters, 18 selfloop transitions, 4 changer transitions 0/218 dead transitions. [2024-10-24 15:22:43,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 218 transitions, 530 flow [2024-10-24 15:22:43,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:43,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:43,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 711 transitions. [2024-10-24 15:22:43,125 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8745387453874539 [2024-10-24 15:22:43,125 INFO L175 Difference]: Start difference. First operand has 199 places, 210 transitions, 468 flow. Second operand 3 states and 711 transitions. [2024-10-24 15:22:43,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 218 transitions, 530 flow [2024-10-24 15:22:43,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 530 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:22:43,130 INFO L231 Difference]: Finished difference. Result has 202 places, 212 transitions, 496 flow [2024-10-24 15:22:43,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=198, 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=496, PETRI_PLACES=202, PETRI_TRANSITIONS=212} [2024-10-24 15:22:43,132 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, -27 predicate places. [2024-10-24 15:22:43,133 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 212 transitions, 496 flow [2024-10-24 15:22:43,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:43,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:43,134 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:22:43,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:22:43,134 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:22:43,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:43,135 INFO L85 PathProgramCache]: Analyzing trace with hash 538516409, now seen corresponding path program 1 times [2024-10-24 15:22:43,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:43,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142190911] [2024-10-24 15:22:43,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:43,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:43,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:43,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:43,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142190911] [2024-10-24 15:22:43,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142190911] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:43,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:43,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:22:43,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769984874] [2024-10-24 15:22:43,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:43,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:43,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:43,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:43,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:43,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 271 [2024-10-24 15:22:43,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 212 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:43,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:43,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 271 [2024-10-24 15:22:43,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:43,533 INFO L124 PetriNetUnfolderBase]: 355/2486 cut-off events. [2024-10-24 15:22:43,533 INFO L125 PetriNetUnfolderBase]: For 114/117 co-relation queries the response was YES. [2024-10-24 15:22:43,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3107 conditions, 2486 events. 355/2486 cut-off events. For 114/117 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 20795 event pairs, 42 based on Foata normal form. 2/2191 useless extension candidates. Maximal degree in co-relation 2908. Up to 233 conditions per place. [2024-10-24 15:22:43,556 INFO L140 encePairwiseOnDemand]: 266/271 looper letters, 20 selfloop transitions, 6 changer transitions 0/223 dead transitions. [2024-10-24 15:22:43,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 223 transitions, 584 flow [2024-10-24 15:22:43,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:43,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:43,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 713 transitions. [2024-10-24 15:22:43,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8769987699876999 [2024-10-24 15:22:43,559 INFO L175 Difference]: Start difference. First operand has 202 places, 212 transitions, 496 flow. Second operand 3 states and 713 transitions. [2024-10-24 15:22:43,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 223 transitions, 584 flow [2024-10-24 15:22:43,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 223 transitions, 572 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:22:43,563 INFO L231 Difference]: Finished difference. Result has 204 places, 217 transitions, 542 flow [2024-10-24 15:22:43,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=200, 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=542, PETRI_PLACES=204, PETRI_TRANSITIONS=217} [2024-10-24 15:22:43,564 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, -25 predicate places. [2024-10-24 15:22:43,565 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 217 transitions, 542 flow [2024-10-24 15:22:43,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:43,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:43,566 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] [2024-10-24 15:22:43,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:22:43,566 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:22:43,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:43,567 INFO L85 PathProgramCache]: Analyzing trace with hash -2137828457, now seen corresponding path program 1 times [2024-10-24 15:22:43,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:43,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079808902] [2024-10-24 15:22:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:43,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:43,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:43,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:43,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079808902] [2024-10-24 15:22:43,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079808902] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:43,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:43,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:22:43,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562933295] [2024-10-24 15:22:43,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:43,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:22:43,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:43,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:22:43,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:22:43,954 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 271 [2024-10-24 15:22:43,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 217 transitions, 542 flow. Second operand has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:43,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:43,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 271 [2024-10-24 15:22:43,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:44,613 INFO L124 PetriNetUnfolderBase]: 783/4911 cut-off events. [2024-10-24 15:22:44,613 INFO L125 PetriNetUnfolderBase]: For 291/304 co-relation queries the response was YES. [2024-10-24 15:22:44,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6422 conditions, 4911 events. 783/4911 cut-off events. For 291/304 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 48366 event pairs, 74 based on Foata normal form. 4/4365 useless extension candidates. Maximal degree in co-relation 6173. Up to 404 conditions per place. [2024-10-24 15:22:44,656 INFO L140 encePairwiseOnDemand]: 261/271 looper letters, 31 selfloop transitions, 23 changer transitions 0/254 dead transitions. [2024-10-24 15:22:44,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 254 transitions, 728 flow [2024-10-24 15:22:44,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:22:44,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:22:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2090 transitions. [2024-10-24 15:22:44,662 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8569085690856909 [2024-10-24 15:22:44,662 INFO L175 Difference]: Start difference. First operand has 204 places, 217 transitions, 542 flow. Second operand 9 states and 2090 transitions. [2024-10-24 15:22:44,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 254 transitions, 728 flow [2024-10-24 15:22:44,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 254 transitions, 716 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:22:44,670 INFO L231 Difference]: Finished difference. Result has 218 places, 239 transitions, 700 flow [2024-10-24 15:22:44,671 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=202, 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=700, PETRI_PLACES=218, PETRI_TRANSITIONS=239} [2024-10-24 15:22:44,673 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, -11 predicate places. [2024-10-24 15:22:44,674 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 239 transitions, 700 flow [2024-10-24 15:22:44,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:44,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:44,675 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] [2024-10-24 15:22:44,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:22:44,676 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:22:44,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:44,676 INFO L85 PathProgramCache]: Analyzing trace with hash -890569519, now seen corresponding path program 2 times [2024-10-24 15:22:44,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:44,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838749179] [2024-10-24 15:22:44,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:44,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:44,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:44,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:44,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838749179] [2024-10-24 15:22:44,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838749179] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:44,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:44,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:22:44,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524148059] [2024-10-24 15:22:44,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:44,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:22:44,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:44,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:22:44,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:22:44,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 271 [2024-10-24 15:22:44,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 239 transitions, 700 flow. Second operand has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:44,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:44,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 271 [2024-10-24 15:22:44,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:45,901 INFO L124 PetriNetUnfolderBase]: 1070/7140 cut-off events. [2024-10-24 15:22:45,901 INFO L125 PetriNetUnfolderBase]: For 1692/1848 co-relation queries the response was YES. [2024-10-24 15:22:45,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10316 conditions, 7140 events. 1070/7140 cut-off events. For 1692/1848 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 78571 event pairs, 65 based on Foata normal form. 38/6432 useless extension candidates. Maximal degree in co-relation 10021. Up to 590 conditions per place. [2024-10-24 15:22:45,967 INFO L140 encePairwiseOnDemand]: 261/271 looper letters, 39 selfloop transitions, 33 changer transitions 0/272 dead transitions. [2024-10-24 15:22:45,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 272 transitions, 1011 flow [2024-10-24 15:22:45,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:22:45,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:22:45,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1404 transitions. [2024-10-24 15:22:45,971 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8634686346863468 [2024-10-24 15:22:45,972 INFO L175 Difference]: Start difference. First operand has 218 places, 239 transitions, 700 flow. Second operand 6 states and 1404 transitions. [2024-10-24 15:22:45,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 272 transitions, 1011 flow [2024-10-24 15:22:45,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 272 transitions, 1011 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:22:45,983 INFO L231 Difference]: Finished difference. Result has 228 places, 260 transitions, 970 flow [2024-10-24 15:22:45,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=218, 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=970, PETRI_PLACES=228, PETRI_TRANSITIONS=260} [2024-10-24 15:22:45,984 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, -1 predicate places. [2024-10-24 15:22:45,984 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 260 transitions, 970 flow [2024-10-24 15:22:45,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:45,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:45,986 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] [2024-10-24 15:22:45,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:22:45,986 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:22:45,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1975530431, now seen corresponding path program 3 times [2024-10-24 15:22:45,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:45,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371272110] [2024-10-24 15:22:45,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:45,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:46,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:46,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:46,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371272110] [2024-10-24 15:22:46,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371272110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:46,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:46,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:22:46,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990935724] [2024-10-24 15:22:46,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:46,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:22:46,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:46,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:22:46,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:22:46,249 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 271 [2024-10-24 15:22:46,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 260 transitions, 970 flow. Second operand has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:46,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:46,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 271 [2024-10-24 15:22:46,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:47,493 INFO L124 PetriNetUnfolderBase]: 1277/8397 cut-off events. [2024-10-24 15:22:47,493 INFO L125 PetriNetUnfolderBase]: For 5381/5788 co-relation queries the response was YES. [2024-10-24 15:22:47,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13354 conditions, 8397 events. 1277/8397 cut-off events. For 5381/5788 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 94746 event pairs, 73 based on Foata normal form. 156/7670 useless extension candidates. Maximal degree in co-relation 13024. Up to 690 conditions per place. [2024-10-24 15:22:47,576 INFO L140 encePairwiseOnDemand]: 258/271 looper letters, 40 selfloop transitions, 68 changer transitions 0/308 dead transitions. [2024-10-24 15:22:47,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 308 transitions, 1538 flow [2024-10-24 15:22:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 15:22:47,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 15:22:47,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1645 transitions. [2024-10-24 15:22:47,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8671586715867159 [2024-10-24 15:22:47,581 INFO L175 Difference]: Start difference. First operand has 228 places, 260 transitions, 970 flow. Second operand 7 states and 1645 transitions. [2024-10-24 15:22:47,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 308 transitions, 1538 flow [2024-10-24 15:22:47,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 308 transitions, 1522 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-10-24 15:22:47,599 INFO L231 Difference]: Finished difference. Result has 240 places, 295 transitions, 1557 flow [2024-10-24 15:22:47,600 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=228, 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=1557, PETRI_PLACES=240, PETRI_TRANSITIONS=295} [2024-10-24 15:22:47,601 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, 11 predicate places. [2024-10-24 15:22:47,601 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 295 transitions, 1557 flow [2024-10-24 15:22:47,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:47,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:47,602 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] [2024-10-24 15:22:47,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:22:47,602 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-24 15:22:47,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:47,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1293748695, now seen corresponding path program 4 times [2024-10-24 15:22:47,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:47,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106900200] [2024-10-24 15:22:47,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:47,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:47,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:47,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106900200] [2024-10-24 15:22:47,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106900200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:47,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:47,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:22:47,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941027278] [2024-10-24 15:22:47,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:47,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 15:22:47,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:47,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 15:22:47,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 15:22:47,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 271 [2024-10-24 15:22:47,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 295 transitions, 1557 flow. Second operand has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:47,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:47,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 271 [2024-10-24 15:22:47,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:49,042 INFO L124 PetriNetUnfolderBase]: 797/5594 cut-off events. [2024-10-24 15:22:49,043 INFO L125 PetriNetUnfolderBase]: For 6607/6998 co-relation queries the response was YES. [2024-10-24 15:22:49,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9370 conditions, 5594 events. 797/5594 cut-off events. For 6607/6998 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 60628 event pairs, 46 based on Foata normal form. 132/5143 useless extension candidates. Maximal degree in co-relation 9013. Up to 458 conditions per place. [2024-10-24 15:22:49,081 INFO L140 encePairwiseOnDemand]: 261/271 looper letters, 0 selfloop transitions, 0 changer transitions 297/297 dead transitions. [2024-10-24 15:22:49,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 297 transitions, 1804 flow [2024-10-24 15:22:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 15:22:49,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 15:22:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1638 transitions. [2024-10-24 15:22:49,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8634686346863468 [2024-10-24 15:22:49,085 INFO L175 Difference]: Start difference. First operand has 240 places, 295 transitions, 1557 flow. Second operand 7 states and 1638 transitions. [2024-10-24 15:22:49,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 297 transitions, 1804 flow [2024-10-24 15:22:49,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 297 transitions, 1664 flow, removed 25 selfloop flow, removed 3 redundant places. [2024-10-24 15:22:49,108 INFO L231 Difference]: Finished difference. Result has 241 places, 0 transitions, 0 flow [2024-10-24 15:22:49,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=1289, PETRI_DIFFERENCE_MINUEND_PLACES=235, 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=241, PETRI_TRANSITIONS=0} [2024-10-24 15:22:49,109 INFO L277 CegarLoopForPetriNet]: 229 programPoint places, 12 predicate places. [2024-10-24 15:22:49,109 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 0 transitions, 0 flow [2024-10-24 15:22:49,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:22:49,113 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (24 of 25 remaining) [2024-10-24 15:22:49,113 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2024-10-24 15:22:49,113 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2024-10-24 15:22:49,113 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2024-10-24 15:22:49,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2024-10-24 15:22:49,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2024-10-24 15:22:49,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2024-10-24 15:22:49,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2024-10-24 15:22:49,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2024-10-24 15:22:49,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2024-10-24 15:22:49,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2024-10-24 15:22:49,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2024-10-24 15:22:49,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2024-10-24 15:22:49,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2024-10-24 15:22:49,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2024-10-24 15:22:49,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 25 remaining) [2024-10-24 15:22:49,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2024-10-24 15:22:49,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2024-10-24 15:22:49,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2024-10-24 15:22:49,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2024-10-24 15:22:49,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2024-10-24 15:22:49,117 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2024-10-24 15:22:49,117 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2024-10-24 15:22:49,117 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2024-10-24 15:22:49,117 INFO L782 garLoopResultBuilder]: Registering result SAFE for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2024-10-24 15:22:49,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 15:22:49,118 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2024-10-24 15:22:49,123 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 15:22:49,123 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:22:49,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:22:49 BasicIcfg [2024-10-24 15:22:49,132 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:22:49,132 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:22:49,132 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:22:49,132 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:22:49,133 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:22:40" (3/4) ... [2024-10-24 15:22:49,134 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 15:22:49,137 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure monitor_thread [2024-10-24 15:22:49,137 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure counter_thread [2024-10-24 15:22:49,141 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-24 15:22:49,141 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-24 15:22:49,142 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 15:22:49,237 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 15:22:49,237 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 15:22:49,237 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:22:49,238 INFO L158 Benchmark]: Toolchain (without parser) took 10262.60ms. Allocated memory was 153.1MB in the beginning and 725.6MB in the end (delta: 572.5MB). Free memory was 96.8MB in the beginning and 401.6MB in the end (delta: -304.8MB). Peak memory consumption was 268.6MB. Max. memory is 16.1GB. [2024-10-24 15:22:49,238 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 153.1MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:22:49,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1066.66ms. Allocated memory is still 153.1MB. Free memory was 96.4MB in the beginning and 106.5MB in the end (delta: -10.1MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2024-10-24 15:22:49,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.88ms. Allocated memory is still 153.1MB. Free memory was 106.5MB in the beginning and 103.0MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:22:49,239 INFO L158 Benchmark]: Boogie Preprocessor took 51.47ms. Allocated memory is still 153.1MB. Free memory was 103.0MB in the beginning and 100.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 15:22:49,240 INFO L158 Benchmark]: RCFGBuilder took 798.37ms. Allocated memory is still 153.1MB. Free memory was 100.2MB in the beginning and 70.2MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-24 15:22:49,240 INFO L158 Benchmark]: TraceAbstraction took 8142.28ms. Allocated memory was 153.1MB in the beginning and 725.6MB in the end (delta: 572.5MB). Free memory was 69.5MB in the beginning and 406.8MB in the end (delta: -337.4MB). Peak memory consumption was 403.9MB. Max. memory is 16.1GB. [2024-10-24 15:22:49,240 INFO L158 Benchmark]: Witness Printer took 105.52ms. Allocated memory is still 725.6MB. Free memory was 406.8MB in the beginning and 401.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 15:22:49,243 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 153.1MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1066.66ms. Allocated memory is still 153.1MB. Free memory was 96.4MB in the beginning and 106.5MB in the end (delta: -10.1MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.88ms. Allocated memory is still 153.1MB. Free memory was 106.5MB in the beginning and 103.0MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.47ms. Allocated memory is still 153.1MB. Free memory was 103.0MB in the beginning and 100.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 798.37ms. Allocated memory is still 153.1MB. Free memory was 100.2MB in the beginning and 70.2MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8142.28ms. Allocated memory was 153.1MB in the beginning and 725.6MB in the end (delta: 572.5MB). Free memory was 69.5MB in the beginning and 406.8MB in the end (delta: -337.4MB). Peak memory consumption was 403.9MB. Max. memory is 16.1GB. * Witness Printer took 105.52ms. Allocated memory is still 725.6MB. Free memory was 406.8MB in the beginning and 401.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 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: 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, 356 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: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 334 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 210 mSDsluCounter, 175 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 72 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 584 IncrementalHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 72 mSolverCounterUnsat, 84 mSDtfsCounter, 584 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=1557occurred 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, 1.3s InterpolantComputationTime, 524 NumberOfCodeBlocks, 524 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 515 ConstructedInterpolants, 0 QuantifiedInterpolants, 961 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! [2024-10-24 15:22:49,278 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