./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread/singleton-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/singleton-b.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 8df6b0e07576c0f44be76a2619065be37971886a948c5dcc3b73910d3c970468 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:04:42,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:04:42,661 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:04:42,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:04:42,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:04:42,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:04:42,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:04:42,698 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:04:42,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:04:42,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:04:42,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:04:42,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:04:42,702 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:04:42,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:04:42,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:04:42,704 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:04:42,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:04:42,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:04:42,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:04:42,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:04:42,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:04:42,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:04:42,709 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:04:42,709 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:04:42,709 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:04:42,710 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:04:42,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:04:42,710 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:04:42,710 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:04:42,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:04:42,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:04:42,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:04:42,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:04:42,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:04:42,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:04:42,713 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:04:42,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:04:42,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:04:42,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:04:42,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:04:42,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:04:42,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8df6b0e07576c0f44be76a2619065be37971886a948c5dcc3b73910d3c970468 [2024-11-10 14:04:42,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:04:43,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:04:43,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:04:43,024 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:04:43,025 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:04:43,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/singleton-b.i [2024-11-10 14:04:44,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:04:44,846 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:04:44,847 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton-b.i [2024-11-10 14:04:44,870 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44846b1ae/e2a7b13e023b47129e7e1f3847bf74f2/FLAGbf7892337 [2024-11-10 14:04:44,886 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44846b1ae/e2a7b13e023b47129e7e1f3847bf74f2 [2024-11-10 14:04:44,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:04:44,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:04:44,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:04:44,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:04:44,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:04:44,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:04:44" (1/1) ... [2024-11-10 14:04:44,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f82c805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:44, skipping insertion in model container [2024-11-10 14:04:44,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:04:44" (1/1) ... [2024-11-10 14:04:44,948 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:04:45,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:04:45,507 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:04:45,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:04:45,628 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:04:45,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45 WrapperNode [2024-11-10 14:04:45,628 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:04:45,629 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:04:45,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:04:45,629 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:04:45,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45" (1/1) ... [2024-11-10 14:04:45,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45" (1/1) ... [2024-11-10 14:04:45,670 INFO L138 Inliner]: procedures = 322, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 34 [2024-11-10 14:04:45,671 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:04:45,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:04:45,672 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:04:45,672 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:04:45,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45" (1/1) ... [2024-11-10 14:04:45,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45" (1/1) ... [2024-11-10 14:04:45,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45" (1/1) ... [2024-11-10 14:04:45,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45" (1/1) ... [2024-11-10 14:04:45,688 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45" (1/1) ... [2024-11-10 14:04:45,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45" (1/1) ... [2024-11-10 14:04:45,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45" (1/1) ... [2024-11-10 14:04:45,691 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45" (1/1) ... [2024-11-10 14:04:45,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:04:45,694 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:04:45,695 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:04:45,695 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:04:45,695 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45" (1/1) ... [2024-11-10 14:04:45,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:04:45,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:04:45,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 14:04:45,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 14:04:45,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:04:45,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2024-11-10 14:04:45,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2024-11-10 14:04:45,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 14:04:45,782 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 14:04:45,782 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 14:04:45,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 14:04:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 14:04:45,783 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 14:04:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:04:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 14:04:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:04:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:04:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:04:45,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:04:45,786 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:04:45,948 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:04:45,951 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:04:46,143 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:04:46,144 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:04:46,158 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:04:46,158 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:04:46,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:04:46 BoogieIcfgContainer [2024-11-10 14:04:46,159 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:04:46,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:04:46,163 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:04:46,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:04:46,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:04:44" (1/3) ... [2024-11-10 14:04:46,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef911aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:04:46, skipping insertion in model container [2024-11-10 14:04:46,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:04:45" (2/3) ... [2024-11-10 14:04:46,168 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef911aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:04:46, skipping insertion in model container [2024-11-10 14:04:46,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:04:46" (3/3) ... [2024-11-10 14:04:46,171 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton-b.i [2024-11-10 14:04:46,188 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:04:46,189 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-10 14:04:46,189 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:04:46,341 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2024-11-10 14:04:46,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 193 transitions, 483 flow [2024-11-10 14:04:46,483 INFO L124 PetriNetUnfolderBase]: 7/149 cut-off events. [2024-11-10 14:04:46,484 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 14:04:46,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 149 events. 7/149 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 166 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 129. Up to 3 conditions per place. [2024-11-10 14:04:46,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 193 transitions, 483 flow [2024-11-10 14:04:46,498 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 130 transitions, 311 flow [2024-11-10 14:04:46,508 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:04:46,517 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;@5acbdf7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:04:46,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-10 14:04:46,533 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:04:46,534 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-11-10 14:04:46,534 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:04:46,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:04:46,535 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] [2024-11-10 14:04:46,536 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-10 14:04:46,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:04:46,541 INFO L85 PathProgramCache]: Analyzing trace with hash 847555836, now seen corresponding path program 1 times [2024-11-10 14:04:46,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:04:46,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585479074] [2024-11-10 14:04:46,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:04:46,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:04:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:04:46,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:04:46,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:04:46,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585479074] [2024-11-10 14:04:46,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585479074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:04:46,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:04:46,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:04:46,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775287577] [2024-11-10 14:04:46,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:04:46,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:04:46,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:04:46,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:04:46,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:04:46,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 195 [2024-11-10 14:04:46,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 130 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:04:46,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:04:46,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 195 [2024-11-10 14:04:46,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:04:47,117 INFO L124 PetriNetUnfolderBase]: 67/524 cut-off events. [2024-11-10 14:04:47,117 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-11-10 14:04:47,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 524 events. 67/524 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2617 event pairs, 51 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 685. Up to 120 conditions per place. [2024-11-10 14:04:47,130 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 24 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2024-11-10 14:04:47,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 129 transitions, 361 flow [2024-11-10 14:04:47,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:04:47,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:04:47,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 480 transitions. [2024-11-10 14:04:47,147 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8205128205128205 [2024-11-10 14:04:47,150 INFO L175 Difference]: Start difference. First operand has 144 places, 130 transitions, 311 flow. Second operand 3 states and 480 transitions. [2024-11-10 14:04:47,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 129 transitions, 361 flow [2024-11-10 14:04:47,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 129 transitions, 327 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-10 14:04:47,162 INFO L231 Difference]: Finished difference. Result has 133 places, 129 transitions, 279 flow [2024-11-10 14:04:47,164 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=133, PETRI_TRANSITIONS=129} [2024-11-10 14:04:47,168 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, -11 predicate places. [2024-11-10 14:04:47,169 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 129 transitions, 279 flow [2024-11-10 14:04:47,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:04:47,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:04:47,171 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] [2024-11-10 14:04:47,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:04:47,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-10 14:04:47,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:04:47,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1997158888, now seen corresponding path program 1 times [2024-11-10 14:04:47,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:04:47,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101023391] [2024-11-10 14:04:47,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:04:47,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:04:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:04:47,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:04:47,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:04:47,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101023391] [2024-11-10 14:04:47,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101023391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:04:47,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:04:47,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:04:47,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37404122] [2024-11-10 14:04:47,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:04:47,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:04:47,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:04:47,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:04:47,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:04:47,316 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 195 [2024-11-10 14:04:47,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 129 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:04:47,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:04:47,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 195 [2024-11-10 14:04:47,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:04:47,602 INFO L124 PetriNetUnfolderBase]: 313/1152 cut-off events. [2024-11-10 14:04:47,603 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-11-10 14:04:47,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1679 conditions, 1152 events. 313/1152 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 7606 event pairs, 188 based on Foata normal form. 0/985 useless extension candidates. Maximal degree in co-relation 1649. Up to 471 conditions per place. [2024-11-10 14:04:47,615 INFO L140 encePairwiseOnDemand]: 186/195 looper letters, 31 selfloop transitions, 4 changer transitions 0/131 dead transitions. [2024-11-10 14:04:47,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 131 transitions, 356 flow [2024-11-10 14:04:47,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:04:47,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:04:47,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 475 transitions. [2024-11-10 14:04:47,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.811965811965812 [2024-11-10 14:04:47,619 INFO L175 Difference]: Start difference. First operand has 133 places, 129 transitions, 279 flow. Second operand 3 states and 475 transitions. [2024-11-10 14:04:47,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 131 transitions, 356 flow [2024-11-10 14:04:47,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 131 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:04:47,624 INFO L231 Difference]: Finished difference. Result has 129 places, 128 transitions, 293 flow [2024-11-10 14:04:47,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=293, PETRI_PLACES=129, PETRI_TRANSITIONS=128} [2024-11-10 14:04:47,625 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, -15 predicate places. [2024-11-10 14:04:47,625 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 128 transitions, 293 flow [2024-11-10 14:04:47,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:04:47,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:04:47,626 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] [2024-11-10 14:04:47,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:04:47,627 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-10 14:04:47,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:04:47,629 INFO L85 PathProgramCache]: Analyzing trace with hash -294636182, now seen corresponding path program 1 times [2024-11-10 14:04:47,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:04:47,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555912695] [2024-11-10 14:04:47,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:04:47,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:04:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:04:47,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:04:47,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:04:47,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555912695] [2024-11-10 14:04:47,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555912695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:04:47,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:04:47,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:04:47,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956776870] [2024-11-10 14:04:47,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:04:47,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:04:47,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:04:47,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:04:47,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:04:47,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 195 [2024-11-10 14:04:47,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 128 transitions, 293 flow. Second operand has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:04:47,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:04:47,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 195 [2024-11-10 14:04:47,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:04:48,038 INFO L124 PetriNetUnfolderBase]: 324/1211 cut-off events. [2024-11-10 14:04:48,039 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-10 14:04:48,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1848 conditions, 1211 events. 324/1211 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 9144 event pairs, 190 based on Foata normal form. 0/1008 useless extension candidates. Maximal degree in co-relation 1818. Up to 436 conditions per place. [2024-11-10 14:04:48,051 INFO L140 encePairwiseOnDemand]: 188/195 looper letters, 30 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2024-11-10 14:04:48,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 136 transitions, 384 flow [2024-11-10 14:04:48,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:04:48,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:04:48,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 487 transitions. [2024-11-10 14:04:48,054 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8324786324786325 [2024-11-10 14:04:48,054 INFO L175 Difference]: Start difference. First operand has 129 places, 128 transitions, 293 flow. Second operand 3 states and 487 transitions. [2024-11-10 14:04:48,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 136 transitions, 384 flow [2024-11-10 14:04:48,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 136 transitions, 384 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:04:48,059 INFO L231 Difference]: Finished difference. Result has 133 places, 133 transitions, 339 flow [2024-11-10 14:04:48,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=339, PETRI_PLACES=133, PETRI_TRANSITIONS=133} [2024-11-10 14:04:48,061 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, -11 predicate places. [2024-11-10 14:04:48,061 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 133 transitions, 339 flow [2024-11-10 14:04:48,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:04:48,062 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:04:48,062 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:04:48,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:04:48,063 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-10 14:04:48,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:04:48,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1851709558, now seen corresponding path program 1 times [2024-11-10 14:04:48,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:04:48,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703547955] [2024-11-10 14:04:48,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:04:48,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:04:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:04:48,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:04:48,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:04:48,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703547955] [2024-11-10 14:04:48,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703547955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:04:48,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:04:48,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:04:48,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590919540] [2024-11-10 14:04:48,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:04:48,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:04:48,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:04:48,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:04:48,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:04:48,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 195 [2024-11-10 14:04:48,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 133 transitions, 339 flow. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:04:48,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:04:48,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 195 [2024-11-10 14:04:48,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:04:48,468 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([326] L1116-2-->L1116-1: Formula: (= |v_#race_3| (store |v_#race_4| v_~v~0.base_4 (store (select |v_#race_4| v_~v~0.base_4) v_~v~0.offset_4 |v_thread2Thread1of1ForFork5_#t~nondet5_3|))) InVars {#race=|v_#race_4|, thread2Thread1of1ForFork5_#t~nondet5=|v_thread2Thread1of1ForFork5_#t~nondet5_3|, ~v~0.offset=v_~v~0.offset_4, ~v~0.base=v_~v~0.base_4} OutVars{#race=|v_#race_3|, thread2Thread1of1ForFork5_#t~nondet5=|v_thread2Thread1of1ForFork5_#t~nondet5_3|, ~v~0.offset=v_~v~0.offset_4, ~v~0.base=v_~v~0.base_4} AuxVars[] AssignedVars[#race][124], [17#L1116-1true, Black: 208#true, Black: 214#(= |thread2Thread1of1ForFork3_#t~nondet5| (select (select |#race| ~v~0.base) ~v~0.offset)), 210#(= |#race~v~0| 0), 53#L1132-1true, 22#L1142-1true, 71#L1116true, 87#L1116-1true, 217#true, 167#L1121true, 212#true]) [2024-11-10 14:04:48,468 INFO L294 olderBase$Statistics]: this new event has 85 ancestors and is cut-off event [2024-11-10 14:04:48,469 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-10 14:04:48,469 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-10 14:04:48,469 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-10 14:04:48,505 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([326] L1116-2-->L1116-1: Formula: (= |v_#race_3| (store |v_#race_4| v_~v~0.base_4 (store (select |v_#race_4| v_~v~0.base_4) v_~v~0.offset_4 |v_thread2Thread1of1ForFork5_#t~nondet5_3|))) InVars {#race=|v_#race_4|, thread2Thread1of1ForFork5_#t~nondet5=|v_thread2Thread1of1ForFork5_#t~nondet5_3|, ~v~0.offset=v_~v~0.offset_4, ~v~0.base=v_~v~0.base_4} OutVars{#race=|v_#race_3|, thread2Thread1of1ForFork5_#t~nondet5=|v_thread2Thread1of1ForFork5_#t~nondet5_3|, ~v~0.offset=v_~v~0.offset_4, ~v~0.base=v_~v~0.base_4} AuxVars[] AssignedVars[#race][115], [17#L1116-1true, Black: 208#true, Black: 214#(= |thread2Thread1of1ForFork3_#t~nondet5| (select (select |#race| ~v~0.base) ~v~0.offset)), 210#(= |#race~v~0| 0), 53#L1132-1true, 22#L1142-1true, 71#L1116true, 87#L1116-1true, 217#true, 178#L1122true, 212#true]) [2024-11-10 14:04:48,506 INFO L294 olderBase$Statistics]: this new event has 86 ancestors and is cut-off event [2024-11-10 14:04:48,506 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-10 14:04:48,506 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-10 14:04:48,506 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-10 14:04:48,556 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([326] L1116-2-->L1116-1: Formula: (= |v_#race_3| (store |v_#race_4| v_~v~0.base_4 (store (select |v_#race_4| v_~v~0.base_4) v_~v~0.offset_4 |v_thread2Thread1of1ForFork5_#t~nondet5_3|))) InVars {#race=|v_#race_4|, thread2Thread1of1ForFork5_#t~nondet5=|v_thread2Thread1of1ForFork5_#t~nondet5_3|, ~v~0.offset=v_~v~0.offset_4, ~v~0.base=v_~v~0.base_4} OutVars{#race=|v_#race_3|, thread2Thread1of1ForFork5_#t~nondet5=|v_thread2Thread1of1ForFork5_#t~nondet5_3|, ~v~0.offset=v_~v~0.offset_4, ~v~0.base=v_~v~0.base_4} AuxVars[] AssignedVars[#race][92], [60#thread2Err0ASSERT_VIOLATIONDATA_RACEtrue, 17#L1116-1true, Black: 208#true, Black: 214#(= |thread2Thread1of1ForFork3_#t~nondet5| (select (select |#race| ~v~0.base) ~v~0.offset)), 210#(= |#race~v~0| 0), 53#L1132-1true, 22#L1142-1true, 87#L1116-1true, 217#true, 212#true, 178#L1122true]) [2024-11-10 14:04:48,557 INFO L294 olderBase$Statistics]: this new event has 86 ancestors and is cut-off event [2024-11-10 14:04:48,557 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-10 14:04:48,557 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-10 14:04:48,557 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-10 14:04:48,585 INFO L124 PetriNetUnfolderBase]: 944/2589 cut-off events. [2024-11-10 14:04:48,585 INFO L125 PetriNetUnfolderBase]: For 898/1160 co-relation queries the response was YES. [2024-11-10 14:04:48,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5319 conditions, 2589 events. 944/2589 cut-off events. For 898/1160 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 21646 event pairs, 369 based on Foata normal form. 1/2185 useless extension candidates. Maximal degree in co-relation 5287. Up to 1029 conditions per place. [2024-11-10 14:04:48,608 INFO L140 encePairwiseOnDemand]: 188/195 looper letters, 33 selfloop transitions, 9 changer transitions 0/144 dead transitions. [2024-11-10 14:04:48,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 144 transitions, 465 flow [2024-11-10 14:04:48,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:04:48,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:04:48,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 488 transitions. [2024-11-10 14:04:48,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8341880341880342 [2024-11-10 14:04:48,611 INFO L175 Difference]: Start difference. First operand has 133 places, 133 transitions, 339 flow. Second operand 3 states and 488 transitions. [2024-11-10 14:04:48,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 144 transitions, 465 flow [2024-11-10 14:04:48,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 144 transitions, 447 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:04:48,624 INFO L231 Difference]: Finished difference. Result has 135 places, 140 transitions, 403 flow [2024-11-10 14:04:48,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=403, PETRI_PLACES=135, PETRI_TRANSITIONS=140} [2024-11-10 14:04:48,625 INFO L277 CegarLoopForPetriNet]: 144 programPoint places, -9 predicate places. [2024-11-10 14:04:48,625 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 140 transitions, 403 flow [2024-11-10 14:04:48,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:04:48,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:04:48,626 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] [2024-11-10 14:04:48,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:04:48,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2024-11-10 14:04:48,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:04:48,627 INFO L85 PathProgramCache]: Analyzing trace with hash -733457278, now seen corresponding path program 1 times [2024-11-10 14:04:48,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:04:48,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277956142] [2024-11-10 14:04:48,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:04:48,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:04:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:04:48,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:04:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:04:48,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:04:48,712 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:04:48,713 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2024-11-10 14:04:48,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 27 remaining) [2024-11-10 14:04:48,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 27 remaining) [2024-11-10 14:04:48,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 27 remaining) [2024-11-10 14:04:48,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 27 remaining) [2024-11-10 14:04:48,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 27 remaining) [2024-11-10 14:04:48,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2024-11-10 14:04:48,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2024-11-10 14:04:48,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2024-11-10 14:04:48,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2024-11-10 14:04:48,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2024-11-10 14:04:48,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2024-11-10 14:04:48,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2024-11-10 14:04:48,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2024-11-10 14:04:48,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2024-11-10 14:04:48,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 27 remaining) [2024-11-10 14:04:48,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 27 remaining) [2024-11-10 14:04:48,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2024-11-10 14:04:48,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread0Thread1of1ForFork4Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 27 remaining) [2024-11-10 14:04:48,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2024-11-10 14:04:48,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2024-11-10 14:04:48,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2024-11-10 14:04:48,720 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2024-11-10 14:04:48,722 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2024-11-10 14:04:48,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2024-11-10 14:04:48,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2024-11-10 14:04:48,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2024-11-10 14:04:48,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:04:48,724 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-10 14:04:48,795 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 14:04:48,795 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 14:04:48,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:04:48 BasicIcfg [2024-11-10 14:04:48,800 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 14:04:48,801 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 14:04:48,801 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 14:04:48,801 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 14:04:48,802 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:04:46" (3/4) ... [2024-11-10 14:04:48,804 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-10 14:04:48,878 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 14:04:48,882 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 14:04:48,883 INFO L158 Benchmark]: Toolchain (without parser) took 3993.47ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 134.8MB in the beginning and 118.1MB in the end (delta: 16.7MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2024-11-10 14:04:48,883 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 139.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 14:04:48,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 737.96ms. Allocated memory is still 167.8MB. Free memory was 134.2MB in the beginning and 98.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-10 14:04:48,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.12ms. Allocated memory is still 167.8MB. Free memory was 98.5MB in the beginning and 96.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 14:04:48,884 INFO L158 Benchmark]: Boogie Preprocessor took 22.07ms. Allocated memory is still 167.8MB. Free memory was 96.4MB in the beginning and 94.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 14:04:48,884 INFO L158 Benchmark]: IcfgBuilder took 464.87ms. Allocated memory is still 167.8MB. Free memory was 94.3MB in the beginning and 79.0MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-10 14:04:48,884 INFO L158 Benchmark]: TraceAbstraction took 2638.33ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 78.4MB in the beginning and 130.7MB in the end (delta: -52.3MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2024-11-10 14:04:48,885 INFO L158 Benchmark]: Witness Printer took 81.15ms. Allocated memory is still 220.2MB. Free memory was 129.7MB in the beginning and 118.1MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 14:04:48,890 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 139.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 737.96ms. Allocated memory is still 167.8MB. Free memory was 134.2MB in the beginning and 98.5MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.12ms. Allocated memory is still 167.8MB. Free memory was 98.5MB in the beginning and 96.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.07ms. Allocated memory is still 167.8MB. Free memory was 96.4MB in the beginning and 94.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 464.87ms. Allocated memory is still 167.8MB. Free memory was 94.3MB in the beginning and 79.0MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2638.33ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 78.4MB in the beginning and 130.7MB in the end (delta: -52.3MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Witness Printer took 81.15ms. Allocated memory is still 220.2MB. Free memory was 129.7MB in the beginning and 118.1MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1116]: Data race detected Data race detected The following path leads to a data race: [L1108] 0 char *v; VAL [v={0:0}] [L1141] 0 pthread_t t; VAL [v={0:0}] [L1142] FCALL, FORK 0 pthread_create(&t, 0, thread0, 0) VAL [\old(arg)={0:0}, t=-3, v={0:0}] [L1126] 1 pthread_t t1, t2, t3, t4, t5; VAL [\old(arg)={0:0}, arg={0:0}, v={0:0}] [L1127] FCALL, FORK 1 pthread_create(&t1, 0, thread1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, t1=-2, v={0:0}] [L1111] 2 v = malloc(sizeof(char)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, t1=-2, v={-1:0}] [L1112] 2 return 0; VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, t1=-2, v={-1:0}] [L1128] FCALL, JOIN 2 pthread_join(t1, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, t1=-2, v={-1:0}] [L1129] FCALL, FORK 1 pthread_create(&t2, 0, thread2, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, v={-1:0}] [L1116] EXPR 3 v[0] VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, v={-1:0}] [L1116] 3 v[0] = 'X' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, v={-1:0}] [L1130] FCALL, FORK 1 pthread_create(&t3, 0, thread3, 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, t3=0, v={-1:0}] [L1121] EXPR 4 v[0] VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, t3=0, v={-1:0}] [L1121] 4 v[0] = 'Y' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, t3=0, v={-1:0}] [L1116] 3 v[0] = 'X' VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t1=-2, t2=-1, t3=0, v={-1:0}] 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: v = malloc(sizeof(char)) [1111] * C: v[0] [1121] * C: v[0] [1116] and C: v[0] = 'X' [1116] - UnprovableResult [Line: 1127]: 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: 1129]: 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: 1132]: 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: 1130]: 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: 1131]: 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: 1111]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1116]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1121]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1121]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1144]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1144]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1142]: 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: 1129]: 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: 1132]: 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: 1130]: 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: 1127]: 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: 1131]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 242 locations, 27 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 263 IncrementalHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 12 mSDtfsCounter, 263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=403occurred in iteration=4, InterpolantAutomatonStates: 12, 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, 0.4s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2024-11-10 14:04:48,922 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