./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/02-base_25-malloc_race_cp.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 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/02-base_25-malloc_race_cp.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 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:44:18,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:44:18,539 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:44:18,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:44:18,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:44:18,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:44:18,559 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:44:18,559 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:44:18,559 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:44:18,559 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:44:18,560 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:44:18,560 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:44:18,560 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:44:18,560 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:44:18,561 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:44:18,561 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:44:18,561 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:44:18,561 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:44:18,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:44:18,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:44:18,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:44:18,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:44:18,563 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:44:18,563 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:44:18,563 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:44:18,563 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:44:18,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:44:18,564 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:44:18,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:44:18,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:44:18,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:44:18,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:44:18,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:44:18,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:44:18,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:44:18,565 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:44:18,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:44:18,566 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:44:18,566 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:44:18,566 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:44:18,566 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:44:18,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed [2024-11-20 13:44:18,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:44:18,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:44:18,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:44:18,776 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:44:18,777 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:44:18,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2024-11-20 13:44:19,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:44:20,192 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:44:20,192 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2024-11-20 13:44:20,209 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0dcb6f2f/f0bdf0df29034dfa8a0594cc2ec288d6/FLAG66a156a03 [2024-11-20 13:44:20,222 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0dcb6f2f/f0bdf0df29034dfa8a0594cc2ec288d6 [2024-11-20 13:44:20,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:44:20,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:44:20,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:44:20,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:44:20,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:44:20,232 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,233 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f6d59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20, skipping insertion in model container [2024-11-20 13:44:20,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,272 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:44:20,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:44:20,743 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:44:20,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:44:20,845 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:44:20,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20 WrapperNode [2024-11-20 13:44:20,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:44:20,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:44:20,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:44:20,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:44:20,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,869 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,889 INFO L138 Inliner]: procedures = 365, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2024-11-20 13:44:20,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:44:20,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:44:20,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:44:20,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:44:20,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,910 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:44:20,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:44:20,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:44:20,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:44:20,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20" (1/1) ... [2024-11-20 13:44:20,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:44:20,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:44:20,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:44:20,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:44:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:44:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:44:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:44:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:44:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 13:44:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:44:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 13:44:20,969 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 13:44:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:44:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:44:20,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:44:20,970 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:44:21,063 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:44:21,065 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:44:21,248 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:44:21,248 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:44:21,270 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:44:21,271 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 13:44:21,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:44:21 BoogieIcfgContainer [2024-11-20 13:44:21,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:44:21,275 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:44:21,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:44:21,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:44:21,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:44:20" (1/3) ... [2024-11-20 13:44:21,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36db19f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:44:21, skipping insertion in model container [2024-11-20 13:44:21,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:20" (2/3) ... [2024-11-20 13:44:21,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36db19f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:44:21, skipping insertion in model container [2024-11-20 13:44:21,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:44:21" (3/3) ... [2024-11-20 13:44:21,280 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_25-malloc_race_cp.i [2024-11-20 13:44:21,292 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:44:21,292 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-20 13:44:21,292 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:44:21,355 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:44:21,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 104 transitions, 212 flow [2024-11-20 13:44:21,433 INFO L124 PetriNetUnfolderBase]: 0/103 cut-off events. [2024-11-20 13:44:21,433 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:44:21,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 103 events. 0/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 77 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-20 13:44:21,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 104 transitions, 212 flow [2024-11-20 13:44:21,443 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 103 transitions, 209 flow [2024-11-20 13:44:21,454 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:44:21,461 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;@3401641, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:44:21,462 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-20 13:44:21,468 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:44:21,468 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-20 13:44:21,468 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:44:21,482 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:21,483 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:44:21,483 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:21,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:21,487 INFO L85 PathProgramCache]: Analyzing trace with hash -2046640981, now seen corresponding path program 1 times [2024-11-20 13:44:21,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:21,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666314944] [2024-11-20 13:44:21,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:21,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:21,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:21,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666314944] [2024-11-20 13:44:21,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666314944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:21,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:21,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:44:21,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964990170] [2024-11-20 13:44:21,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:21,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:44:21,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:21,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:44:21,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:44:21,728 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 104 [2024-11-20 13:44:21,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 103 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:21,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:21,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 104 [2024-11-20 13:44:21,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:21,789 INFO L124 PetriNetUnfolderBase]: 12/234 cut-off events. [2024-11-20 13:44:21,789 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:44:21,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 234 events. 12/234 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 664 event pairs, 12 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 227. Up to 36 conditions per place. [2024-11-20 13:44:21,793 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 11 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2024-11-20 13:44:21,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 102 transitions, 233 flow [2024-11-20 13:44:21,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:44:21,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:44:21,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-20 13:44:21,802 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9102564102564102 [2024-11-20 13:44:21,803 INFO L175 Difference]: Start difference. First operand has 107 places, 103 transitions, 209 flow. Second operand 3 states and 284 transitions. [2024-11-20 13:44:21,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 102 transitions, 233 flow [2024-11-20 13:44:21,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 102 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:44:21,808 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 210 flow [2024-11-20 13:44:21,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2024-11-20 13:44:21,812 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 0 predicate places. [2024-11-20 13:44:21,812 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 210 flow [2024-11-20 13:44:21,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:21,813 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:21,813 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:44:21,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:44:21,813 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:21,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:21,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1419190674, now seen corresponding path program 1 times [2024-11-20 13:44:21,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:21,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876727971] [2024-11-20 13:44:21,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:21,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:21,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:21,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876727971] [2024-11-20 13:44:21,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876727971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:21,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:21,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:44:21,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51726047] [2024-11-20 13:44:21,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:21,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:44:21,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:21,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:44:21,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:44:21,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 104 [2024-11-20 13:44:21,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:21,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:21,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 104 [2024-11-20 13:44:21,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:21,934 INFO L124 PetriNetUnfolderBase]: 9/200 cut-off events. [2024-11-20 13:44:21,935 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:44:21,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 200 events. 9/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 514 event pairs, 9 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 210. Up to 30 conditions per place. [2024-11-20 13:44:21,937 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 11 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2024-11-20 13:44:21,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 101 transitions, 234 flow [2024-11-20 13:44:21,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:44:21,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:44:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-11-20 13:44:21,942 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9102564102564102 [2024-11-20 13:44:21,942 INFO L175 Difference]: Start difference. First operand has 107 places, 102 transitions, 210 flow. Second operand 3 states and 284 transitions. [2024-11-20 13:44:21,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 101 transitions, 234 flow [2024-11-20 13:44:21,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 101 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:44:21,944 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 208 flow [2024-11-20 13:44:21,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2024-11-20 13:44:21,945 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, -1 predicate places. [2024-11-20 13:44:21,945 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 208 flow [2024-11-20 13:44:21,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:21,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:21,945 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] [2024-11-20 13:44:21,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:44:21,946 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:21,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:21,946 INFO L85 PathProgramCache]: Analyzing trace with hash 177711188, now seen corresponding path program 1 times [2024-11-20 13:44:21,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:21,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223239060] [2024-11-20 13:44:21,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:21,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:22,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:22,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223239060] [2024-11-20 13:44:22,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223239060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:22,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:22,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:44:22,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516180179] [2024-11-20 13:44:22,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:22,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:44:22,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:22,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:44:22,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:44:22,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 104 [2024-11-20 13:44:22,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:22,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:22,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 104 [2024-11-20 13:44:22,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:22,046 INFO L124 PetriNetUnfolderBase]: 8/165 cut-off events. [2024-11-20 13:44:22,046 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:44:22,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 165 events. 8/165 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 400 event pairs, 8 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 163. Up to 25 conditions per place. [2024-11-20 13:44:22,047 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 9 selfloop transitions, 1 changer transitions 0/99 dead transitions. [2024-11-20 13:44:22,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 99 transitions, 224 flow [2024-11-20 13:44:22,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:44:22,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:44:22,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2024-11-20 13:44:22,049 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2024-11-20 13:44:22,049 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 208 flow. Second operand 3 states and 288 transitions. [2024-11-20 13:44:22,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 99 transitions, 224 flow [2024-11-20 13:44:22,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 99 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:44:22,050 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 202 flow [2024-11-20 13:44:22,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2024-11-20 13:44:22,051 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, -3 predicate places. [2024-11-20 13:44:22,051 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 202 flow [2024-11-20 13:44:22,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:22,051 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:22,052 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] [2024-11-20 13:44:22,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:44:22,052 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:22,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:22,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1291684622, now seen corresponding path program 1 times [2024-11-20 13:44:22,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:22,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357849141] [2024-11-20 13:44:22,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:22,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:22,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:22,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:22,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357849141] [2024-11-20 13:44:22,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357849141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:22,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:22,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:44:22,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267859881] [2024-11-20 13:44:22,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:22,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:44:22,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:22,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:44:22,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:44:22,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 104 [2024-11-20 13:44:22,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:22,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:22,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 104 [2024-11-20 13:44:22,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:22,162 INFO L124 PetriNetUnfolderBase]: 16/249 cut-off events. [2024-11-20 13:44:22,162 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:44:22,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 249 events. 16/249 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 822 event pairs, 7 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 262. Up to 36 conditions per place. [2024-11-20 13:44:22,166 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 12 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2024-11-20 13:44:22,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 101 transitions, 234 flow [2024-11-20 13:44:22,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:44:22,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:44:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2024-11-20 13:44:22,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9358974358974359 [2024-11-20 13:44:22,167 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 202 flow. Second operand 3 states and 292 transitions. [2024-11-20 13:44:22,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 101 transitions, 234 flow [2024-11-20 13:44:22,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 101 transitions, 233 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:44:22,170 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 211 flow [2024-11-20 13:44:22,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2024-11-20 13:44:22,172 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, -3 predicate places. [2024-11-20 13:44:22,172 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 211 flow [2024-11-20 13:44:22,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:22,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:22,173 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] [2024-11-20 13:44:22,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:44:22,173 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:22,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:22,174 INFO L85 PathProgramCache]: Analyzing trace with hash 70069530, now seen corresponding path program 1 times [2024-11-20 13:44:22,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:22,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901792953] [2024-11-20 13:44:22,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:22,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:22,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:22,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:22,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901792953] [2024-11-20 13:44:22,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901792953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:22,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:22,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:44:22,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486257718] [2024-11-20 13:44:22,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:22,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:44:22,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:22,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:44:22,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:44:22,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 104 [2024-11-20 13:44:22,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:22,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:22,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 104 [2024-11-20 13:44:22,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:22,891 INFO L124 PetriNetUnfolderBase]: 231/839 cut-off events. [2024-11-20 13:44:22,891 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:44:22,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1357 conditions, 839 events. 231/839 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4771 event pairs, 96 based on Foata normal form. 0/785 useless extension candidates. Maximal degree in co-relation 1321. Up to 348 conditions per place. [2024-11-20 13:44:22,902 INFO L140 encePairwiseOnDemand]: 88/104 looper letters, 51 selfloop transitions, 41 changer transitions 0/163 dead transitions. [2024-11-20 13:44:22,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 163 transitions, 523 flow [2024-11-20 13:44:22,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:44:22,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:44:22,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 549 transitions. [2024-11-20 13:44:22,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8798076923076923 [2024-11-20 13:44:22,905 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 211 flow. Second operand 6 states and 549 transitions. [2024-11-20 13:44:22,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 163 transitions, 523 flow [2024-11-20 13:44:22,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 163 transitions, 523 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:44:22,910 INFO L231 Difference]: Finished difference. Result has 113 places, 141 transitions, 469 flow [2024-11-20 13:44:22,911 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=469, PETRI_PLACES=113, PETRI_TRANSITIONS=141} [2024-11-20 13:44:22,911 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 6 predicate places. [2024-11-20 13:44:22,912 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 141 transitions, 469 flow [2024-11-20 13:44:22,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:22,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:22,912 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] [2024-11-20 13:44:22,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:44:22,913 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:22,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:22,915 INFO L85 PathProgramCache]: Analyzing trace with hash 87245971, now seen corresponding path program 1 times [2024-11-20 13:44:22,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:22,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545497357] [2024-11-20 13:44:22,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:22,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:23,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:23,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:23,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545497357] [2024-11-20 13:44:23,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545497357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:23,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:23,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:44:23,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832890728] [2024-11-20 13:44:23,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:23,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:44:23,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:23,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:44:23,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:44:23,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 104 [2024-11-20 13:44:23,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 141 transitions, 469 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:23,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:23,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 104 [2024-11-20 13:44:23,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:23,407 INFO L124 PetriNetUnfolderBase]: 285/1134 cut-off events. [2024-11-20 13:44:23,408 INFO L125 PetriNetUnfolderBase]: For 318/367 co-relation queries the response was YES. [2024-11-20 13:44:23,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2402 conditions, 1134 events. 285/1134 cut-off events. For 318/367 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7589 event pairs, 29 based on Foata normal form. 31/1130 useless extension candidates. Maximal degree in co-relation 2361. Up to 272 conditions per place. [2024-11-20 13:44:23,413 INFO L140 encePairwiseOnDemand]: 89/104 looper letters, 71 selfloop transitions, 48 changer transitions 0/216 dead transitions. [2024-11-20 13:44:23,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 216 transitions, 971 flow [2024-11-20 13:44:23,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:44:23,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:44:23,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 579 transitions. [2024-11-20 13:44:23,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9278846153846154 [2024-11-20 13:44:23,415 INFO L175 Difference]: Start difference. First operand has 113 places, 141 transitions, 469 flow. Second operand 6 states and 579 transitions. [2024-11-20 13:44:23,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 216 transitions, 971 flow [2024-11-20 13:44:23,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 216 transitions, 971 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:44:23,421 INFO L231 Difference]: Finished difference. Result has 123 places, 187 transitions, 875 flow [2024-11-20 13:44:23,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=875, PETRI_PLACES=123, PETRI_TRANSITIONS=187} [2024-11-20 13:44:23,422 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 16 predicate places. [2024-11-20 13:44:23,422 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 187 transitions, 875 flow [2024-11-20 13:44:23,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:23,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:23,422 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] [2024-11-20 13:44:23,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:44:23,423 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:23,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:23,423 INFO L85 PathProgramCache]: Analyzing trace with hash -587936594, now seen corresponding path program 1 times [2024-11-20 13:44:23,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:23,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140697723] [2024-11-20 13:44:23,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:23,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:23,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:23,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:23,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140697723] [2024-11-20 13:44:23,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140697723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:23,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:23,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:44:23,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897737759] [2024-11-20 13:44:23,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:23,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:44:23,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:23,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:44:23,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:44:23,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 104 [2024-11-20 13:44:23,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 187 transitions, 875 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:23,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:23,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 104 [2024-11-20 13:44:23,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:23,501 INFO L124 PetriNetUnfolderBase]: 39/286 cut-off events. [2024-11-20 13:44:23,502 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-11-20 13:44:23,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 286 events. 39/286 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 967 event pairs, 4 based on Foata normal form. 2/275 useless extension candidates. Maximal degree in co-relation 499. Up to 64 conditions per place. [2024-11-20 13:44:23,503 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 2 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2024-11-20 13:44:23,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 120 transitions, 413 flow [2024-11-20 13:44:23,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:44:23,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:44:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2024-11-20 13:44:23,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.967948717948718 [2024-11-20 13:44:23,505 INFO L175 Difference]: Start difference. First operand has 123 places, 187 transitions, 875 flow. Second operand 3 states and 302 transitions. [2024-11-20 13:44:23,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 120 transitions, 413 flow [2024-11-20 13:44:23,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 120 transitions, 363 flow, removed 17 selfloop flow, removed 8 redundant places. [2024-11-20 13:44:23,508 INFO L231 Difference]: Finished difference. Result has 116 places, 120 transitions, 359 flow [2024-11-20 13:44:23,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=116, PETRI_TRANSITIONS=120} [2024-11-20 13:44:23,509 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 9 predicate places. [2024-11-20 13:44:23,509 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 120 transitions, 359 flow [2024-11-20 13:44:23,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:23,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:23,509 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] [2024-11-20 13:44:23,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:44:23,510 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:23,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:23,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1489826976, now seen corresponding path program 1 times [2024-11-20 13:44:23,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:23,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716530715] [2024-11-20 13:44:23,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:23,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:23,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:23,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:23,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716530715] [2024-11-20 13:44:23,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716530715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:23,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:23,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:44:23,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264598255] [2024-11-20 13:44:23,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:23,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:44:23,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:23,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:44:23,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:44:23,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 104 [2024-11-20 13:44:23,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 120 transitions, 359 flow. Second operand has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:23,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:23,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 104 [2024-11-20 13:44:23,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:23,863 INFO L124 PetriNetUnfolderBase]: 93/482 cut-off events. [2024-11-20 13:44:23,863 INFO L125 PetriNetUnfolderBase]: For 90/103 co-relation queries the response was YES. [2024-11-20 13:44:23,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 482 events. 93/482 cut-off events. For 90/103 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2169 event pairs, 20 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 918. Up to 197 conditions per place. [2024-11-20 13:44:23,865 INFO L140 encePairwiseOnDemand]: 93/104 looper letters, 46 selfloop transitions, 22 changer transitions 0/141 dead transitions. [2024-11-20 13:44:23,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 141 transitions, 569 flow [2024-11-20 13:44:23,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:44:23,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:44:23,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 511 transitions. [2024-11-20 13:44:23,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8189102564102564 [2024-11-20 13:44:23,867 INFO L175 Difference]: Start difference. First operand has 116 places, 120 transitions, 359 flow. Second operand 6 states and 511 transitions. [2024-11-20 13:44:23,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 141 transitions, 569 flow [2024-11-20 13:44:23,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 141 transitions, 565 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:44:23,870 INFO L231 Difference]: Finished difference. Result has 125 places, 141 transitions, 537 flow [2024-11-20 13:44:23,870 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=537, PETRI_PLACES=125, PETRI_TRANSITIONS=141} [2024-11-20 13:44:23,870 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 18 predicate places. [2024-11-20 13:44:23,870 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 141 transitions, 537 flow [2024-11-20 13:44:23,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:23,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:23,871 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] [2024-11-20 13:44:23,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:44:23,871 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:23,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:23,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1812481170, now seen corresponding path program 1 times [2024-11-20 13:44:23,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:23,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761270616] [2024-11-20 13:44:23,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:23,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:24,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:24,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:24,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761270616] [2024-11-20 13:44:24,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761270616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:24,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:24,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:44:24,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875097239] [2024-11-20 13:44:24,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:24,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:44:24,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:24,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:44:24,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:44:24,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2024-11-20 13:44:24,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 141 transitions, 537 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:24,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:24,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2024-11-20 13:44:24,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:24,327 INFO L124 PetriNetUnfolderBase]: 195/735 cut-off events. [2024-11-20 13:44:24,327 INFO L125 PetriNetUnfolderBase]: For 309/316 co-relation queries the response was YES. [2024-11-20 13:44:24,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1830 conditions, 735 events. 195/735 cut-off events. For 309/316 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4008 event pairs, 12 based on Foata normal form. 0/713 useless extension candidates. Maximal degree in co-relation 1782. Up to 295 conditions per place. [2024-11-20 13:44:24,331 INFO L140 encePairwiseOnDemand]: 89/104 looper letters, 56 selfloop transitions, 52 changer transitions 13/198 dead transitions. [2024-11-20 13:44:24,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 198 transitions, 1044 flow [2024-11-20 13:44:24,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:44:24,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:44:24,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2024-11-20 13:44:24,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8894230769230769 [2024-11-20 13:44:24,332 INFO L175 Difference]: Start difference. First operand has 125 places, 141 transitions, 537 flow. Second operand 6 states and 555 transitions. [2024-11-20 13:44:24,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 198 transitions, 1044 flow [2024-11-20 13:44:24,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 198 transitions, 1006 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-20 13:44:24,337 INFO L231 Difference]: Finished difference. Result has 135 places, 181 transitions, 952 flow [2024-11-20 13:44:24,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=952, PETRI_PLACES=135, PETRI_TRANSITIONS=181} [2024-11-20 13:44:24,338 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 28 predicate places. [2024-11-20 13:44:24,338 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 181 transitions, 952 flow [2024-11-20 13:44:24,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:24,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:24,338 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] [2024-11-20 13:44:24,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:44:24,339 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:24,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:24,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1380146183, now seen corresponding path program 1 times [2024-11-20 13:44:24,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:24,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748907922] [2024-11-20 13:44:24,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:24,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:24,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:24,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:24,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748907922] [2024-11-20 13:44:24,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748907922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:24,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:24,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 13:44:24,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379671424] [2024-11-20 13:44:24,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:24,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:44:24,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:24,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:44:24,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-20 13:44:25,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 104 [2024-11-20 13:44:25,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 181 transitions, 952 flow. Second operand has 12 states, 12 states have (on average 68.25) internal successors, (819), 12 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:25,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:25,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 104 [2024-11-20 13:44:25,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:25,413 INFO L124 PetriNetUnfolderBase]: 189/697 cut-off events. [2024-11-20 13:44:25,413 INFO L125 PetriNetUnfolderBase]: For 722/762 co-relation queries the response was YES. [2024-11-20 13:44:25,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 697 events. 189/697 cut-off events. For 722/762 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3753 event pairs, 18 based on Foata normal form. 21/711 useless extension candidates. Maximal degree in co-relation 2145. Up to 193 conditions per place. [2024-11-20 13:44:25,417 INFO L140 encePairwiseOnDemand]: 89/104 looper letters, 115 selfloop transitions, 39 changer transitions 20/235 dead transitions. [2024-11-20 13:44:25,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 235 transitions, 1684 flow [2024-11-20 13:44:25,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 13:44:25,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 13:44:25,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 998 transitions. [2024-11-20 13:44:25,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6854395604395604 [2024-11-20 13:44:25,419 INFO L175 Difference]: Start difference. First operand has 135 places, 181 transitions, 952 flow. Second operand 14 states and 998 transitions. [2024-11-20 13:44:25,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 235 transitions, 1684 flow [2024-11-20 13:44:25,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 235 transitions, 1633 flow, removed 18 selfloop flow, removed 3 redundant places. [2024-11-20 13:44:25,426 INFO L231 Difference]: Finished difference. Result has 151 places, 189 transitions, 1096 flow [2024-11-20 13:44:25,427 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1096, PETRI_PLACES=151, PETRI_TRANSITIONS=189} [2024-11-20 13:44:25,427 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 44 predicate places. [2024-11-20 13:44:25,427 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 189 transitions, 1096 flow [2024-11-20 13:44:25,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 68.25) internal successors, (819), 12 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:25,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:25,428 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] [2024-11-20 13:44:25,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:44:25,428 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:25,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:25,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1024159188, now seen corresponding path program 1 times [2024-11-20 13:44:25,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:25,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441943619] [2024-11-20 13:44:25,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:25,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:25,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:25,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:25,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441943619] [2024-11-20 13:44:25,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441943619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:25,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:25,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 13:44:25,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857009986] [2024-11-20 13:44:25,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:25,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:44:25,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:25,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:44:25,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-20 13:44:26,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 104 [2024-11-20 13:44:26,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 189 transitions, 1096 flow. Second operand has 12 states, 12 states have (on average 74.75) internal successors, (897), 12 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:26,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:26,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 104 [2024-11-20 13:44:26,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:26,527 INFO L124 PetriNetUnfolderBase]: 175/639 cut-off events. [2024-11-20 13:44:26,528 INFO L125 PetriNetUnfolderBase]: For 1067/1101 co-relation queries the response was YES. [2024-11-20 13:44:26,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2249 conditions, 639 events. 175/639 cut-off events. For 1067/1101 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3310 event pairs, 4 based on Foata normal form. 23/660 useless extension candidates. Maximal degree in co-relation 2220. Up to 126 conditions per place. [2024-11-20 13:44:26,532 INFO L140 encePairwiseOnDemand]: 86/104 looper letters, 87 selfloop transitions, 68 changer transitions 11/235 dead transitions. [2024-11-20 13:44:26,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 235 transitions, 1801 flow [2024-11-20 13:44:26,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 13:44:26,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 13:44:26,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1035 transitions. [2024-11-20 13:44:26,535 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7655325443786982 [2024-11-20 13:44:26,535 INFO L175 Difference]: Start difference. First operand has 151 places, 189 transitions, 1096 flow. Second operand 13 states and 1035 transitions. [2024-11-20 13:44:26,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 235 transitions, 1801 flow [2024-11-20 13:44:26,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 235 transitions, 1759 flow, removed 3 selfloop flow, removed 9 redundant places. [2024-11-20 13:44:26,546 INFO L231 Difference]: Finished difference. Result has 158 places, 197 transitions, 1388 flow [2024-11-20 13:44:26,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1388, PETRI_PLACES=158, PETRI_TRANSITIONS=197} [2024-11-20 13:44:26,547 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 51 predicate places. [2024-11-20 13:44:26,547 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 197 transitions, 1388 flow [2024-11-20 13:44:26,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.75) internal successors, (897), 12 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:26,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:26,548 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] [2024-11-20 13:44:26,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:44:26,549 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:26,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:26,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1647267624, now seen corresponding path program 1 times [2024-11-20 13:44:26,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:26,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631837270] [2024-11-20 13:44:26,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:26,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:26,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:26,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:26,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631837270] [2024-11-20 13:44:26,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631837270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:26,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:26,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 13:44:26,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330295787] [2024-11-20 13:44:26,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:26,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:44:26,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:26,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:44:26,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-20 13:44:27,132 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 104 [2024-11-20 13:44:27,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 197 transitions, 1388 flow. Second operand has 12 states, 12 states have (on average 68.58333333333333) internal successors, (823), 12 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:27,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:27,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 104 [2024-11-20 13:44:27,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:27,465 INFO L124 PetriNetUnfolderBase]: 170/661 cut-off events. [2024-11-20 13:44:27,465 INFO L125 PetriNetUnfolderBase]: For 2024/2103 co-relation queries the response was YES. [2024-11-20 13:44:27,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2607 conditions, 661 events. 170/661 cut-off events. For 2024/2103 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3544 event pairs, 15 based on Foata normal form. 43/698 useless extension candidates. Maximal degree in co-relation 2531. Up to 192 conditions per place. [2024-11-20 13:44:27,469 INFO L140 encePairwiseOnDemand]: 90/104 looper letters, 122 selfloop transitions, 35 changer transitions 12/231 dead transitions. [2024-11-20 13:44:27,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 231 transitions, 2092 flow [2024-11-20 13:44:27,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 13:44:27,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-20 13:44:27,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1125 transitions. [2024-11-20 13:44:27,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6760817307692307 [2024-11-20 13:44:27,498 INFO L175 Difference]: Start difference. First operand has 158 places, 197 transitions, 1388 flow. Second operand 16 states and 1125 transitions. [2024-11-20 13:44:27,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 231 transitions, 2092 flow [2024-11-20 13:44:27,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 231 transitions, 2062 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-20 13:44:27,509 INFO L231 Difference]: Finished difference. Result has 168 places, 193 transitions, 1394 flow [2024-11-20 13:44:27,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1358, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1394, PETRI_PLACES=168, PETRI_TRANSITIONS=193} [2024-11-20 13:44:27,511 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 61 predicate places. [2024-11-20 13:44:27,511 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 193 transitions, 1394 flow [2024-11-20 13:44:27,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 68.58333333333333) internal successors, (823), 12 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:27,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:27,512 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] [2024-11-20 13:44:27,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 13:44:27,512 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:27,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:27,513 INFO L85 PathProgramCache]: Analyzing trace with hash 2132507222, now seen corresponding path program 2 times [2024-11-20 13:44:27,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:27,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763412427] [2024-11-20 13:44:27,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:27,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:27,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:27,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:27,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763412427] [2024-11-20 13:44:27,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763412427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:27,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:27,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 13:44:27,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406057336] [2024-11-20 13:44:27,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:27,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 13:44:27,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:27,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 13:44:27,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-20 13:44:28,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 104 [2024-11-20 13:44:28,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 193 transitions, 1394 flow. Second operand has 12 states, 12 states have (on average 68.58333333333333) internal successors, (823), 12 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:28,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:28,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 104 [2024-11-20 13:44:28,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:28,345 INFO L124 PetriNetUnfolderBase]: 165/646 cut-off events. [2024-11-20 13:44:28,345 INFO L125 PetriNetUnfolderBase]: For 2108/2139 co-relation queries the response was YES. [2024-11-20 13:44:28,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2591 conditions, 646 events. 165/646 cut-off events. For 2108/2139 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3426 event pairs, 15 based on Foata normal form. 13/653 useless extension candidates. Maximal degree in co-relation 2560. Up to 192 conditions per place. [2024-11-20 13:44:28,349 INFO L140 encePairwiseOnDemand]: 90/104 looper letters, 118 selfloop transitions, 34 changer transitions 10/224 dead transitions. [2024-11-20 13:44:28,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 224 transitions, 2062 flow [2024-11-20 13:44:28,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 13:44:28,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-20 13:44:28,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1186 transitions. [2024-11-20 13:44:28,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.670814479638009 [2024-11-20 13:44:28,351 INFO L175 Difference]: Start difference. First operand has 168 places, 193 transitions, 1394 flow. Second operand 17 states and 1186 transitions. [2024-11-20 13:44:28,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 224 transitions, 2062 flow [2024-11-20 13:44:28,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 224 transitions, 1976 flow, removed 4 selfloop flow, removed 15 redundant places. [2024-11-20 13:44:28,364 INFO L231 Difference]: Finished difference. Result has 165 places, 188 transitions, 1339 flow [2024-11-20 13:44:28,364 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1302, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1339, PETRI_PLACES=165, PETRI_TRANSITIONS=188} [2024-11-20 13:44:28,365 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 58 predicate places. [2024-11-20 13:44:28,365 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 188 transitions, 1339 flow [2024-11-20 13:44:28,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 68.58333333333333) internal successors, (823), 12 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 13:44:28,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:28,366 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] [2024-11-20 13:44:28,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 13:44:28,366 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-20 13:44:28,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:28,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1762241086, now seen corresponding path program 1 times [2024-11-20 13:44:28,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:28,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406999478] [2024-11-20 13:44:28,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:28,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:44:28,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:44:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:44:28,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:44:28,427 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:44:28,428 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2024-11-20 13:44:28,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-20 13:44:28,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-20 13:44:28,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-20 13:44:28,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-20 13:44:28,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-20 13:44:28,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-20 13:44:28,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-20 13:44:28,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-20 13:44:28,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-20 13:44:28,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-20 13:44:28,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-20 13:44:28,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-20 13:44:28,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-20 13:44:28,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-20 13:44:28,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:44:28,432 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:44:28,483 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 13:44:28,483 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 13:44:28,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:44:28 BasicIcfg [2024-11-20 13:44:28,491 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 13:44:28,492 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 13:44:28,492 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 13:44:28,492 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 13:44:28,492 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:44:21" (3/4) ... [2024-11-20 13:44:28,493 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-20 13:44:28,534 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 13:44:28,534 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 13:44:28,535 INFO L158 Benchmark]: Toolchain (without parser) took 8309.43ms. Allocated memory was 180.4MB in the beginning and 318.8MB in the end (delta: 138.4MB). Free memory was 115.3MB in the beginning and 155.5MB in the end (delta: -40.3MB). Peak memory consumption was 96.5MB. Max. memory is 16.1GB. [2024-11-20 13:44:28,535 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 94.4MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 13:44:28,535 INFO L158 Benchmark]: CACSL2BoogieTranslator took 618.79ms. Allocated memory is still 180.4MB. Free memory was 115.3MB in the beginning and 121.2MB in the end (delta: -6.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-20 13:44:28,535 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.50ms. Allocated memory is still 180.4MB. Free memory was 121.2MB in the beginning and 118.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 13:44:28,535 INFO L158 Benchmark]: Boogie Preprocessor took 22.87ms. Allocated memory is still 180.4MB. Free memory was 118.6MB in the beginning and 116.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 13:44:28,536 INFO L158 Benchmark]: RCFGBuilder took 357.47ms. Allocated memory is still 180.4MB. Free memory was 116.9MB in the beginning and 98.9MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-20 13:44:28,536 INFO L158 Benchmark]: TraceAbstraction took 7216.19ms. Allocated memory was 180.4MB in the beginning and 318.8MB in the end (delta: 138.4MB). Free memory was 98.2MB in the beginning and 162.9MB in the end (delta: -64.7MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. [2024-11-20 13:44:28,536 INFO L158 Benchmark]: Witness Printer took 42.61ms. Allocated memory is still 318.8MB. Free memory was 162.9MB in the beginning and 155.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 13:44:28,537 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 94.4MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 618.79ms. Allocated memory is still 180.4MB. Free memory was 115.3MB in the beginning and 121.2MB in the end (delta: -6.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.50ms. Allocated memory is still 180.4MB. Free memory was 121.2MB in the beginning and 118.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.87ms. Allocated memory is still 180.4MB. Free memory was 118.6MB in the beginning and 116.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 357.47ms. Allocated memory is still 180.4MB. Free memory was 116.9MB in the beginning and 98.9MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7216.19ms. Allocated memory was 180.4MB in the beginning and 318.8MB in the end (delta: 138.4MB). Free memory was 98.2MB in the beginning and 162.9MB in the end (delta: -64.7MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. * Witness Printer took 42.61ms. Allocated memory is still 318.8MB. Free memory was 162.9MB in the beginning and 155.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1243]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; VAL [x={0:0}] [L1224] 0 int *y; VAL [x={0:0}, y={0:0}] [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [m={1:0}, x={0:0}, y={0:0}] [L1234] 0 pthread_t id; VAL [m={1:0}, x={0:0}, y={0:0}] [L1235] 0 int *z; VAL [m={1:0}, x={0:0}, y={0:0}] [L1236] 0 x = malloc(sizeof(int)) VAL [m={1:0}, x={-2:0}, y={0:0}] [L1237] 0 y = malloc(sizeof(int)) VAL [m={1:0}, x={-2:0}, y={-3:0}] [L1238] 0 z = y VAL [m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1239] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, id=-1, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1241] EXPR 0 *x VAL [\old(arg)={0:0}, id=-1, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1241] EXPR 0 \read(*x) VAL [\old(arg)={0:0}, id=-1, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1241] 0 printf("%d\n",*x) VAL [\old(arg)={0:0}, id=-1, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1228] EXPR 1 *x VAL [\old(arg)={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1228] 1 *x = 3 VAL [\old(arg)={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1243] EXPR 0 \read(*z) VAL [\old(arg)={0:0}, arg={0:0}, id=-1, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1229] EXPR 1 *y VAL [\old(arg)={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1229] 1 *y = 8 VAL [\old(arg)={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1243] 0 printf("%d\n",*z) VAL [\old(arg)={0:0}, arg={0:0}, id=-1, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: *y = 8 [1229] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: y = malloc(sizeof(int)) [1237] * C: x = malloc(sizeof(int)) [1236] and C: printf("%d\n",*z) [1243] - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 138 locations, 15 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: 7.0s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1436 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1129 mSDsluCounter, 1258 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1195 mSDsCounter, 232 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5066 IncrementalHoareTripleChecker+Invalid, 5298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 232 mSolverCounterUnsat, 63 mSDtfsCounter, 5066 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1394occurred in iteration=12, InterpolantAutomatonStates: 99, 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, 2.4s InterpolantComputationTime, 759 NumberOfCodeBlocks, 759 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 668 ConstructedInterpolants, 0 QuantifiedInterpolants, 2320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-20 13:44:28,552 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE