./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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.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 ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 21:57:01,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 21:57:01,797 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 21:57:01,802 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 21:57:01,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 21:57:01,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 21:57:01,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 21:57:01,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 21:57:01,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 21:57:01,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 21:57:01,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 21:57:01,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 21:57:01,830 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 21:57:01,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 21:57:01,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 21:57:01,830 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 21:57:01,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 21:57:01,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 21:57:01,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 21:57:01,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 21:57:01,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 21:57:01,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 21:57:01,831 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 21:57:01,831 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 21:57:01,831 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 21:57:01,831 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 21:57:01,831 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 21:57:01,831 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 21:57:01,831 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 21:57:01,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 21:57:01,831 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 21:57:01,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 21:57:01,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 21:57:01,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 21:57:01,832 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 21:57:01,832 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 21:57:01,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 21:57:01,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 21:57:01,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 21:57:01,832 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 21:57:01,832 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 21:57:01,832 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 21:57:01,832 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2025-03-13 21:57:02,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 21:57:02,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 21:57:02,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 21:57:02,091 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 21:57:02,091 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 21:57:02,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/singleton.i [2025-03-13 21:57:03,242 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9538ccb6/4bb922b919f3491a8b65db2f4bb6bd32/FLAG17084f25f [2025-03-13 21:57:03,558 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 21:57:03,558 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton.i [2025-03-13 21:57:03,575 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9538ccb6/4bb922b919f3491a8b65db2f4bb6bd32/FLAG17084f25f [2025-03-13 21:57:03,808 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9538ccb6/4bb922b919f3491a8b65db2f4bb6bd32 [2025-03-13 21:57:03,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 21:57:03,811 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 21:57:03,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 21:57:03,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 21:57:03,817 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 21:57:03,818 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 09:57:03" (1/1) ... [2025-03-13 21:57:03,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76fa81a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:03, skipping insertion in model container [2025-03-13 21:57:03,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 09:57:03" (1/1) ... [2025-03-13 21:57:03,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 21:57:04,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 21:57:04,139 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 21:57:04,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 21:57:04,216 INFO L204 MainTranslator]: Completed translation [2025-03-13 21:57:04,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04 WrapperNode [2025-03-13 21:57:04,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 21:57:04,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 21:57:04,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 21:57:04,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 21:57:04,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04" (1/1) ... [2025-03-13 21:57:04,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04" (1/1) ... [2025-03-13 21:57:04,242 INFO L138 Inliner]: procedures = 323, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 34 [2025-03-13 21:57:04,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 21:57:04,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 21:57:04,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 21:57:04,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 21:57:04,248 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04" (1/1) ... [2025-03-13 21:57:04,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04" (1/1) ... [2025-03-13 21:57:04,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04" (1/1) ... [2025-03-13 21:57:04,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04" (1/1) ... [2025-03-13 21:57:04,254 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04" (1/1) ... [2025-03-13 21:57:04,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04" (1/1) ... [2025-03-13 21:57:04,256 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04" (1/1) ... [2025-03-13 21:57:04,257 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04" (1/1) ... [2025-03-13 21:57:04,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 21:57:04,259 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 21:57:04,259 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 21:57:04,259 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 21:57:04,260 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04" (1/1) ... [2025-03-13 21:57:04,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 21:57:04,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 21:57:04,293 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) [2025-03-13 21:57:04,296 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 [2025-03-13 21:57:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-13 21:57:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-13 21:57:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-13 21:57:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2025-03-13 21:57:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2025-03-13 21:57:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-13 21:57:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-13 21:57:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-13 21:57:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-13 21:57:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-13 21:57:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-13 21:57:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 21:57:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-13 21:57:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 21:57:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 21:57:04,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 21:57:04,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 21:57:04,317 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 21:57:04,419 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 21:57:04,421 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 21:57:04,594 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 21:57:04,595 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 21:57:04,595 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 21:57:04,641 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 21:57:04,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 09:57:04 BoogieIcfgContainer [2025-03-13 21:57:04,642 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 21:57:04,644 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 21:57:04,644 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 21:57:04,647 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 21:57:04,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 09:57:03" (1/3) ... [2025-03-13 21:57:04,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec52b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 09:57:04, skipping insertion in model container [2025-03-13 21:57:04,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 09:57:04" (2/3) ... [2025-03-13 21:57:04,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ec52b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 09:57:04, skipping insertion in model container [2025-03-13 21:57:04,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 09:57:04" (3/3) ... [2025-03-13 21:57:04,651 INFO L128 eAbstractionObserver]: Analyzing ICFG singleton.i [2025-03-13 21:57:04,663 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 21:57:04,664 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG singleton.i that has 5 procedures, 111 locations, 1 initial locations, 0 loop locations, and 7 error locations. [2025-03-13 21:57:04,664 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 21:57:04,768 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2025-03-13 21:57:04,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 178 places, 169 transitions, 435 flow [2025-03-13 21:57:04,860 INFO L124 PetriNetUnfolderBase]: 7/125 cut-off events. [2025-03-13 21:57:04,862 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-13 21:57:04,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 125 events. 7/125 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 105. Up to 3 conditions per place. [2025-03-13 21:57:04,867 INFO L82 GeneralOperation]: Start removeDead. Operand has 178 places, 169 transitions, 435 flow [2025-03-13 21:57:04,872 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 106 transitions, 263 flow [2025-03-13 21:57:04,879 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 21:57:04,893 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;@74e31bd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 21:57:04,895 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2025-03-13 21:57:04,905 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 21:57:04,907 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2025-03-13 21:57:04,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 21:57:04,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:57:04,908 INFO L206 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] [2025-03-13 21:57:04,908 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2025-03-13 21:57:04,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:57:04,914 INFO L85 PathProgramCache]: Analyzing trace with hash 915068952, now seen corresponding path program 1 times [2025-03-13 21:57:04,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:57:04,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803501193] [2025-03-13 21:57:04,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:57:04,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:57:04,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-13 21:57:05,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-13 21:57:05,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:57:05,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:57:05,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:57:05,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:57:05,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803501193] [2025-03-13 21:57:05,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803501193] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:57:05,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:57:05,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 21:57:05,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343460403] [2025-03-13 21:57:05,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:57:05,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:57:05,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:57:05,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:57:05,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:57:05,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 171 [2025-03-13 21:57:05,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 106 transitions, 263 flow. Second operand has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2025-03-13 21:57:05,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:57:05,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 171 [2025-03-13 21:57:05,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:57:05,289 INFO L124 PetriNetUnfolderBase]: 67/252 cut-off events. [2025-03-13 21:57:05,290 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2025-03-13 21:57:05,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 252 events. 67/252 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 730 event pairs, 51 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 413. Up to 120 conditions per place. [2025-03-13 21:57:05,294 INFO L140 encePairwiseOnDemand]: 160/171 looper letters, 24 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2025-03-13 21:57:05,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 97 transitions, 297 flow [2025-03-13 21:57:05,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:57:05,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:57:05,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2025-03-13 21:57:05,308 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7641325536062378 [2025-03-13 21:57:05,309 INFO L175 Difference]: Start difference. First operand has 120 places, 106 transitions, 263 flow. Second operand 3 states and 392 transitions. [2025-03-13 21:57:05,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 97 transitions, 297 flow [2025-03-13 21:57:05,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 263 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-03-13 21:57:05,319 INFO L231 Difference]: Finished difference. Result has 101 places, 97 transitions, 215 flow [2025-03-13 21:57:05,320 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=101, PETRI_TRANSITIONS=97} [2025-03-13 21:57:05,324 INFO L279 CegarLoopForPetriNet]: 120 programPoint places, -19 predicate places. [2025-03-13 21:57:05,324 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 97 transitions, 215 flow [2025-03-13 21:57:05,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.66666666666667) internal successors, (362), 3 states have internal predecessors, (362), 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) [2025-03-13 21:57:05,325 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:57:05,325 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:57:05,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 21:57:05,326 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2025-03-13 21:57:05,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:57:05,327 INFO L85 PathProgramCache]: Analyzing trace with hash 440284236, now seen corresponding path program 1 times [2025-03-13 21:57:05,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:57:05,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554084736] [2025-03-13 21:57:05,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:57:05,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:57:05,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-13 21:57:05,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-13 21:57:05,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:57:05,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:57:05,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:57:05,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:57:05,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554084736] [2025-03-13 21:57:05,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554084736] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:57:05,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:57:05,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 21:57:05,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651384877] [2025-03-13 21:57:05,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:57:05,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:57:05,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:57:05,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:57:05,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:57:05,481 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 171 [2025-03-13 21:57:05,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2025-03-13 21:57:05,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:57:05,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 171 [2025-03-13 21:57:05,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:57:05,575 INFO L124 PetriNetUnfolderBase]: 67/272 cut-off events. [2025-03-13 21:57:05,575 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-03-13 21:57:05,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 272 events. 67/272 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 834 event pairs, 29 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 383. Up to 110 conditions per place. [2025-03-13 21:57:05,576 INFO L140 encePairwiseOnDemand]: 166/171 looper letters, 27 selfloop transitions, 4 changer transitions 0/103 dead transitions. [2025-03-13 21:57:05,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 103 transitions, 292 flow [2025-03-13 21:57:05,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:57:05,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:57:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2025-03-13 21:57:05,579 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7699805068226121 [2025-03-13 21:57:05,579 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 215 flow. Second operand 3 states and 395 transitions. [2025-03-13 21:57:05,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 103 transitions, 292 flow [2025-03-13 21:57:05,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 103 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 21:57:05,582 INFO L231 Difference]: Finished difference. Result has 101 places, 100 transitions, 237 flow [2025-03-13 21:57:05,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=101, PETRI_TRANSITIONS=100} [2025-03-13 21:57:05,583 INFO L279 CegarLoopForPetriNet]: 120 programPoint places, -19 predicate places. [2025-03-13 21:57:05,583 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 100 transitions, 237 flow [2025-03-13 21:57:05,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2025-03-13 21:57:05,584 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 21:57:05,584 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 21:57:05,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 21:57:05,584 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2025-03-13 21:57:05,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 21:57:05,585 INFO L85 PathProgramCache]: Analyzing trace with hash 79050085, now seen corresponding path program 1 times [2025-03-13 21:57:05,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 21:57:05,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381106512] [2025-03-13 21:57:05,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 21:57:05,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 21:57:05,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-13 21:57:05,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-13 21:57:05,623 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 21:57:05,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 21:57:05,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 21:57:05,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 21:57:05,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381106512] [2025-03-13 21:57:05,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381106512] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 21:57:05,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 21:57:05,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 21:57:05,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817154319] [2025-03-13 21:57:05,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 21:57:05,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 21:57:05,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 21:57:05,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 21:57:05,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 21:57:05,849 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 171 [2025-03-13 21:57:05,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2025-03-13 21:57:05,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 21:57:05,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 171 [2025-03-13 21:57:05,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 21:57:05,921 INFO L124 PetriNetUnfolderBase]: 67/256 cut-off events. [2025-03-13 21:57:05,922 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2025-03-13 21:57:05,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 256 events. 67/256 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 753 event pairs, 35 based on Foata normal form. 1/231 useless extension candidates. Maximal degree in co-relation 442. Up to 119 conditions per place. [2025-03-13 21:57:05,924 INFO L140 encePairwiseOnDemand]: 169/171 looper letters, 0 selfloop transitions, 0 changer transitions 99/99 dead transitions. [2025-03-13 21:57:05,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 99 transitions, 291 flow [2025-03-13 21:57:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 21:57:05,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 21:57:05,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2025-03-13 21:57:05,926 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7504873294346979 [2025-03-13 21:57:05,926 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 237 flow. Second operand 3 states and 385 transitions. [2025-03-13 21:57:05,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 99 transitions, 291 flow [2025-03-13 21:57:05,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 99 transitions, 291 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 21:57:05,928 INFO L231 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2025-03-13 21:57:05,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2025-03-13 21:57:05,929 INFO L279 CegarLoopForPetriNet]: 120 programPoint places, -18 predicate places. [2025-03-13 21:57:05,929 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2025-03-13 21:57:05,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2025-03-13 21:57:05,932 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2025-03-13 21:57:05,933 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 27 remaining) [2025-03-13 21:57:05,933 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 27 remaining) [2025-03-13 21:57:05,933 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 27 remaining) [2025-03-13 21:57:05,933 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 27 remaining) [2025-03-13 21:57:05,933 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2025-03-13 21:57:05,933 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2025-03-13 21:57:05,933 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2025-03-13 21:57:05,933 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2025-03-13 21:57:05,933 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2025-03-13 21:57:05,934 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2025-03-13 21:57:05,934 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2025-03-13 21:57:05,934 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 27 remaining) [2025-03-13 21:57:05,934 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2025-03-13 21:57:05,934 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2025-03-13 21:57:05,934 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 27 remaining) [2025-03-13 21:57:05,934 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 27 remaining) [2025-03-13 21:57:05,934 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2025-03-13 21:57:05,934 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2025-03-13 21:57:05,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2025-03-13 21:57:05,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2025-03-13 21:57:05,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2025-03-13 21:57:05,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2025-03-13 21:57:05,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2025-03-13 21:57:05,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2025-03-13 21:57:05,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2025-03-13 21:57:05,935 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2025-03-13 21:57:05,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 21:57:05,937 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-13 21:57:05,941 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-13 21:57:05,941 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-13 21:57:05,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 09:57:05 BasicIcfg [2025-03-13 21:57:05,946 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-13 21:57:05,946 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-13 21:57:05,946 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-13 21:57:05,946 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-13 21:57:05,948 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 09:57:04" (3/4) ... [2025-03-13 21:57:05,949 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-13 21:57:05,951 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread0 [2025-03-13 21:57:05,951 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-13 21:57:05,951 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-13 21:57:05,951 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-13 21:57:05,955 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-13 21:57:05,956 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-13 21:57:05,956 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-13 21:57:05,956 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-13 21:57:06,003 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-13 21:57:06,004 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-13 21:57:06,004 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-13 21:57:06,004 INFO L158 Benchmark]: Toolchain (without parser) took 2193.63ms. Allocated memory is still 167.8MB. Free memory was 121.2MB in the beginning and 99.7MB in the end (delta: 21.5MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2025-03-13 21:57:06,005 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 21:57:06,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.38ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 88.8MB in the end (delta: 31.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-13 21:57:06,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.98ms. Allocated memory is still 167.8MB. Free memory was 88.8MB in the beginning and 87.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 21:57:06,005 INFO L158 Benchmark]: Boogie Preprocessor took 15.03ms. Allocated memory is still 167.8MB. Free memory was 87.0MB in the beginning and 85.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 21:57:06,005 INFO L158 Benchmark]: IcfgBuilder took 383.18ms. Allocated memory is still 167.8MB. Free memory was 85.6MB in the beginning and 68.6MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-13 21:57:06,006 INFO L158 Benchmark]: TraceAbstraction took 1301.97ms. Allocated memory is still 167.8MB. Free memory was 68.1MB in the beginning and 105.3MB in the end (delta: -37.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 21:57:06,006 INFO L158 Benchmark]: Witness Printer took 57.84ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 99.7MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 21:57:06,007 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.38ms. Allocated memory is still 167.8MB. Free memory was 120.8MB in the beginning and 88.8MB in the end (delta: 31.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.98ms. Allocated memory is still 167.8MB. Free memory was 88.8MB in the beginning and 87.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.03ms. Allocated memory is still 167.8MB. Free memory was 87.0MB in the beginning and 85.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 383.18ms. Allocated memory is still 167.8MB. Free memory was 85.6MB in the beginning and 68.6MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1301.97ms. Allocated memory is still 167.8MB. Free memory was 68.1MB in the beginning and 105.3MB in the end (delta: -37.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.84ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 99.7MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 206 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: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 1 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-13 21:57:06,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE