./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.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/goblint-regression/09-regions_28-list2alloc.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 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:18:31,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:18:31,173 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:18:31,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:18:31,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:18:31,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:18:31,201 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:18:31,201 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:18:31,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:18:31,202 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:18:31,202 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:18:31,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:18:31,202 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:18:31,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:18:31,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:18:31,202 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:18:31,202 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:18:31,202 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:18:31,202 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:18:31,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:18:31,204 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:18:31,204 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:18:31,204 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:18:31,204 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:18:31,204 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:18:31,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:18:31,204 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:18:31,204 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:18:31,205 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:18:31,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:18:31,205 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:18:31,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:18:31,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:18:31,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:18:31,205 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:18:31,205 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:18:31,206 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:18:31,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:18:31,206 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:18:31,206 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:18:31,206 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:18:31,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:18:31,206 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 -> 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad [2025-03-13 22:18:31,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:18:31,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:18:31,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:18:31,446 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:18:31,447 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:18:31,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2025-03-13 22:18:32,589 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1598927a4/bb62f81eb1624c9bb451693ba753f631/FLAG809f90e80 [2025-03-13 22:18:32,835 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:18:32,835 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2025-03-13 22:18:32,856 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1598927a4/bb62f81eb1624c9bb451693ba753f631/FLAG809f90e80 [2025-03-13 22:18:33,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1598927a4/bb62f81eb1624c9bb451693ba753f631 [2025-03-13 22:18:33,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:18:33,141 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:18:33,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:18:33,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:18:33,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:18:33,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1f9196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33, skipping insertion in model container [2025-03-13 22:18:33,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:18:33,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:18:33,508 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:18:33,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:18:33,600 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:18:33,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33 WrapperNode [2025-03-13 22:18:33,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:18:33,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:18:33,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:18:33,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:18:33,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,616 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,632 INFO L138 Inliner]: procedures = 368, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2025-03-13 22:18:33,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:18:33,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:18:33,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:18:33,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:18:33,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,649 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:18:33,655 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:18:33,655 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:18:33,655 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:18:33,656 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33" (1/1) ... [2025-03-13 22:18:33,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:18:33,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:18:33,680 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 22:18:33,682 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 22:18:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-13 22:18:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-13 22:18:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 22:18:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-13 22:18:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-13 22:18:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:18:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-13 22:18:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-13 22:18:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-13 22:18:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:18:33,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:18:33,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:18:33,697 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 22:18:33,812 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:18:33,814 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:18:34,088 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:18:34,089 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:18:34,089 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:18:34,118 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:18:34,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:18:34 BoogieIcfgContainer [2025-03-13 22:18:34,122 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:18:34,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:18:34,123 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:18:34,127 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:18:34,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:18:33" (1/3) ... [2025-03-13 22:18:34,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5149ad43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:18:34, skipping insertion in model container [2025-03-13 22:18:34,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:18:33" (2/3) ... [2025-03-13 22:18:34,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5149ad43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:18:34, skipping insertion in model container [2025-03-13 22:18:34,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:18:34" (3/3) ... [2025-03-13 22:18:34,130 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_28-list2alloc.i [2025-03-13 22:18:34,142 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:18:34,144 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_28-list2alloc.i that has 2 procedures, 178 locations, 1 initial locations, 0 loop locations, and 14 error locations. [2025-03-13 22:18:34,145 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:18:34,242 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:18:34,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 177 transitions, 358 flow [2025-03-13 22:18:34,339 INFO L124 PetriNetUnfolderBase]: 0/176 cut-off events. [2025-03-13 22:18:34,342 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:18:34,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 176 events. 0/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 81 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-03-13 22:18:34,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 177 transitions, 358 flow [2025-03-13 22:18:34,348 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 176 transitions, 355 flow [2025-03-13 22:18:34,358 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:18:34,367 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;@411e631d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:18:34,368 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-03-13 22:18:34,376 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:18:34,377 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2025-03-13 22:18:34,377 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:18:34,377 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:18:34,378 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] [2025-03-13 22:18:34,379 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-13 22:18:34,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:18:34,383 INFO L85 PathProgramCache]: Analyzing trace with hash -604542675, now seen corresponding path program 1 times [2025-03-13 22:18:34,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:18:34,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261784801] [2025-03-13 22:18:34,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:18:34,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:18:34,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-13 22:18:34,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-13 22:18:34,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:18:34,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:18:34,990 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 22:18:34,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:18:34,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261784801] [2025-03-13 22:18:34,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261784801] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:18:34,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:18:34,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:18:34,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816069380] [2025-03-13 22:18:34,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:18:34,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:18:35,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:18:35,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:18:35,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:18:35,313 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 177 [2025-03-13 22:18:35,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 176 transitions, 355 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 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 22:18:35,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:18:35,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 177 [2025-03-13 22:18:35,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:18:35,472 INFO L124 PetriNetUnfolderBase]: 120/637 cut-off events. [2025-03-13 22:18:35,472 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:18:35,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 637 events. 120/637 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2788 event pairs, 120 based on Foata normal form. 0/579 useless extension candidates. Maximal degree in co-relation 808. Up to 278 conditions per place. [2025-03-13 22:18:35,478 INFO L140 encePairwiseOnDemand]: 165/177 looper letters, 37 selfloop transitions, 10 changer transitions 0/174 dead transitions. [2025-03-13 22:18:35,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 174 transitions, 445 flow [2025-03-13 22:18:35,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:18:35,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:18:35,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 817 transitions. [2025-03-13 22:18:35,493 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7693032015065914 [2025-03-13 22:18:35,494 INFO L175 Difference]: Start difference. First operand has 180 places, 176 transitions, 355 flow. Second operand 6 states and 817 transitions. [2025-03-13 22:18:35,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 174 transitions, 445 flow [2025-03-13 22:18:35,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 174 transitions, 444 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:18:35,503 INFO L231 Difference]: Finished difference. Result has 182 places, 174 transitions, 370 flow [2025-03-13 22:18:35,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=370, PETRI_PLACES=182, PETRI_TRANSITIONS=174} [2025-03-13 22:18:35,508 INFO L279 CegarLoopForPetriNet]: 180 programPoint places, 2 predicate places. [2025-03-13 22:18:35,510 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 174 transitions, 370 flow [2025-03-13 22:18:35,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 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 22:18:35,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:18:35,511 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] [2025-03-13 22:18:35,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:18:35,511 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-13 22:18:35,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:18:35,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1575694669, now seen corresponding path program 1 times [2025-03-13 22:18:35,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:18:35,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820217332] [2025-03-13 22:18:35,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:18:35,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:18:35,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-13 22:18:35,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-13 22:18:35,542 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:18:35,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:18:35,802 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 22:18:35,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:18:35,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820217332] [2025-03-13 22:18:35,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820217332] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:18:35,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:18:35,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:18:35,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084920503] [2025-03-13 22:18:35,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:18:35,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:18:35,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:18:35,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:18:35,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:18:36,035 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 177 [2025-03-13 22:18:36,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 174 transitions, 370 flow. Second operand has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 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 22:18:36,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:18:36,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 177 [2025-03-13 22:18:36,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:18:36,192 INFO L124 PetriNetUnfolderBase]: 120/628 cut-off events. [2025-03-13 22:18:36,193 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:18:36,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 930 conditions, 628 events. 120/628 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2727 event pairs, 120 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 835. Up to 278 conditions per place. [2025-03-13 22:18:36,198 INFO L140 encePairwiseOnDemand]: 165/177 looper letters, 37 selfloop transitions, 10 changer transitions 0/172 dead transitions. [2025-03-13 22:18:36,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 172 transitions, 460 flow [2025-03-13 22:18:36,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:18:36,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:18:36,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 817 transitions. [2025-03-13 22:18:36,203 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7693032015065914 [2025-03-13 22:18:36,203 INFO L175 Difference]: Start difference. First operand has 182 places, 174 transitions, 370 flow. Second operand 6 states and 817 transitions. [2025-03-13 22:18:36,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 172 transitions, 460 flow [2025-03-13 22:18:36,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 172 transitions, 440 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-13 22:18:36,207 INFO L231 Difference]: Finished difference. Result has 180 places, 172 transitions, 366 flow [2025-03-13 22:18:36,207 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=366, PETRI_PLACES=180, PETRI_TRANSITIONS=172} [2025-03-13 22:18:36,207 INFO L279 CegarLoopForPetriNet]: 180 programPoint places, 0 predicate places. [2025-03-13 22:18:36,208 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 172 transitions, 366 flow [2025-03-13 22:18:36,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 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 22:18:36,208 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:18:36,208 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] [2025-03-13 22:18:36,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:18:36,209 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-13 22:18:36,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:18:36,209 INFO L85 PathProgramCache]: Analyzing trace with hash 493103592, now seen corresponding path program 1 times [2025-03-13 22:18:36,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:18:36,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146414486] [2025-03-13 22:18:36,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:18:36,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:18:36,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-13 22:18:36,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-13 22:18:36,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:18:36,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:18:36,243 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 22:18:36,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:18:36,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146414486] [2025-03-13 22:18:36,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146414486] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:18:36,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:18:36,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:18:36,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952404564] [2025-03-13 22:18:36,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:18:36,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:18:36,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:18:36,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:18:36,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:18:36,259 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 177 [2025-03-13 22:18:36,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 172 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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 22:18:36,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:18:36,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 177 [2025-03-13 22:18:36,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:18:36,299 INFO L124 PetriNetUnfolderBase]: 20/407 cut-off events. [2025-03-13 22:18:36,299 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:18:36,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 407 events. 20/407 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1281 event pairs, 20 based on Foata normal form. 0/370 useless extension candidates. Maximal degree in co-relation 382. Up to 54 conditions per place. [2025-03-13 22:18:36,300 INFO L140 encePairwiseOnDemand]: 174/177 looper letters, 13 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2025-03-13 22:18:36,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 171 transitions, 394 flow [2025-03-13 22:18:36,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:18:36,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:18:36,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2025-03-13 22:18:36,303 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9397363465160076 [2025-03-13 22:18:36,305 INFO L175 Difference]: Start difference. First operand has 180 places, 172 transitions, 366 flow. Second operand 3 states and 499 transitions. [2025-03-13 22:18:36,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 171 transitions, 394 flow [2025-03-13 22:18:36,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 171 transitions, 374 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-13 22:18:36,307 INFO L231 Difference]: Finished difference. Result has 176 places, 171 transitions, 348 flow [2025-03-13 22:18:36,307 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=176, PETRI_TRANSITIONS=171} [2025-03-13 22:18:36,309 INFO L279 CegarLoopForPetriNet]: 180 programPoint places, -4 predicate places. [2025-03-13 22:18:36,310 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 171 transitions, 348 flow [2025-03-13 22:18:36,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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 22:18:36,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:18:36,310 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] [2025-03-13 22:18:36,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:18:36,311 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-13 22:18:36,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:18:36,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1052579530, now seen corresponding path program 1 times [2025-03-13 22:18:36,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:18:36,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144500503] [2025-03-13 22:18:36,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:18:36,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:18:36,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-13 22:18:36,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-13 22:18:36,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:18:36,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:18:36,360 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 22:18:36,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:18:36,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144500503] [2025-03-13 22:18:36,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144500503] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:18:36,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:18:36,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:18:36,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138731267] [2025-03-13 22:18:36,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:18:36,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:18:36,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:18:36,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:18:36,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:18:36,377 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 177 [2025-03-13 22:18:36,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 171 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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 22:18:36,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:18:36,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 177 [2025-03-13 22:18:36,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:18:36,414 INFO L124 PetriNetUnfolderBase]: 15/347 cut-off events. [2025-03-13 22:18:36,414 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:18:36,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 347 events. 15/347 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 919 event pairs, 15 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 338. Up to 43 conditions per place. [2025-03-13 22:18:36,416 INFO L140 encePairwiseOnDemand]: 174/177 looper letters, 12 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2025-03-13 22:18:36,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 170 transitions, 374 flow [2025-03-13 22:18:36,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:18:36,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:18:36,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 501 transitions. [2025-03-13 22:18:36,417 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.943502824858757 [2025-03-13 22:18:36,417 INFO L175 Difference]: Start difference. First operand has 176 places, 171 transitions, 348 flow. Second operand 3 states and 501 transitions. [2025-03-13 22:18:36,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 170 transitions, 374 flow [2025-03-13 22:18:36,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 170 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:18:36,420 INFO L231 Difference]: Finished difference. Result has 175 places, 170 transitions, 346 flow [2025-03-13 22:18:36,420 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=175, PETRI_TRANSITIONS=170} [2025-03-13 22:18:36,420 INFO L279 CegarLoopForPetriNet]: 180 programPoint places, -5 predicate places. [2025-03-13 22:18:36,420 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 170 transitions, 346 flow [2025-03-13 22:18:36,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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 22:18:36,421 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:18:36,421 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, 1, 1, 1, 1, 1] [2025-03-13 22:18:36,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 22:18:36,421 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-13 22:18:36,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:18:36,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1158152007, now seen corresponding path program 1 times [2025-03-13 22:18:36,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:18:36,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725570289] [2025-03-13 22:18:36,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:18:36,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:18:36,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-13 22:18:36,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-13 22:18:36,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:18:36,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:18:36,470 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 22:18:36,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:18:36,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725570289] [2025-03-13 22:18:36,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725570289] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:18:36,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:18:36,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:18:36,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834571603] [2025-03-13 22:18:36,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:18:36,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:18:36,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:18:36,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:18:36,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:18:36,479 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 177 [2025-03-13 22:18:36,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 170 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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 22:18:36,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:18:36,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 177 [2025-03-13 22:18:36,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:18:36,512 INFO L124 PetriNetUnfolderBase]: 24/353 cut-off events. [2025-03-13 22:18:36,512 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:18:36,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 353 events. 24/353 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 919 event pairs, 13 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 327. Up to 54 conditions per place. [2025-03-13 22:18:36,514 INFO L140 encePairwiseOnDemand]: 173/177 looper letters, 14 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2025-03-13 22:18:36,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 172 transitions, 382 flow [2025-03-13 22:18:36,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:18:36,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:18:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2025-03-13 22:18:36,515 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9548022598870056 [2025-03-13 22:18:36,515 INFO L175 Difference]: Start difference. First operand has 175 places, 170 transitions, 346 flow. Second operand 3 states and 507 transitions. [2025-03-13 22:18:36,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 172 transitions, 382 flow [2025-03-13 22:18:36,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 172 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:18:36,522 INFO L231 Difference]: Finished difference. Result has 174 places, 170 transitions, 352 flow [2025-03-13 22:18:36,523 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=174, PETRI_TRANSITIONS=170} [2025-03-13 22:18:36,523 INFO L279 CegarLoopForPetriNet]: 180 programPoint places, -6 predicate places. [2025-03-13 22:18:36,524 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 170 transitions, 352 flow [2025-03-13 22:18:36,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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 22:18:36,524 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:18:36,524 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:18:36,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-13 22:18:36,525 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-13 22:18:36,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:18:36,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1766852822, now seen corresponding path program 1 times [2025-03-13 22:18:36,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:18:36,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29009905] [2025-03-13 22:18:36,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:18:36,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:18:36,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-13 22:18:36,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-13 22:18:36,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:18:36,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:18:36,905 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 22:18:36,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:18:36,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29009905] [2025-03-13 22:18:36,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29009905] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:18:36,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:18:36,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:18:36,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425128517] [2025-03-13 22:18:36,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:18:36,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:18:36,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:18:36,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:18:36,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:18:37,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 177 [2025-03-13 22:18:37,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 352 flow. Second operand has 6 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:18:37,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:18:37,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 177 [2025-03-13 22:18:37,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:18:37,199 INFO L124 PetriNetUnfolderBase]: 129/681 cut-off events. [2025-03-13 22:18:37,199 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:18:37,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1002 conditions, 681 events. 129/681 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3078 event pairs, 78 based on Foata normal form. 0/644 useless extension candidates. Maximal degree in co-relation 887. Up to 258 conditions per place. [2025-03-13 22:18:37,202 INFO L140 encePairwiseOnDemand]: 166/177 looper letters, 51 selfloop transitions, 22 changer transitions 0/199 dead transitions. [2025-03-13 22:18:37,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 199 transitions, 556 flow [2025-03-13 22:18:37,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:18:37,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:18:37,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 872 transitions. [2025-03-13 22:18:37,204 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8210922787193974 [2025-03-13 22:18:37,204 INFO L175 Difference]: Start difference. First operand has 174 places, 170 transitions, 352 flow. Second operand 6 states and 872 transitions. [2025-03-13 22:18:37,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 199 transitions, 556 flow [2025-03-13 22:18:37,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 199 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:18:37,206 INFO L231 Difference]: Finished difference. Result has 184 places, 191 transitions, 502 flow [2025-03-13 22:18:37,206 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=502, PETRI_PLACES=184, PETRI_TRANSITIONS=191} [2025-03-13 22:18:37,208 INFO L279 CegarLoopForPetriNet]: 180 programPoint places, 4 predicate places. [2025-03-13 22:18:37,208 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 191 transitions, 502 flow [2025-03-13 22:18:37,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:18:37,208 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:18:37,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:18:37,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 22:18:37,208 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-13 22:18:37,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:18:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1552327285, now seen corresponding path program 1 times [2025-03-13 22:18:37,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:18:37,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601760766] [2025-03-13 22:18:37,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:18:37,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:18:37,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-13 22:18:37,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-13 22:18:37,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:18:37,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:18:37,571 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 22:18:37,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:18:37,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601760766] [2025-03-13 22:18:37,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601760766] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:18:37,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:18:37,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:18:37,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675650612] [2025-03-13 22:18:37,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:18:37,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:18:37,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:18:37,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:18:37,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:18:37,690 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 177 [2025-03-13 22:18:37,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 191 transitions, 502 flow. Second operand has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 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 22:18:37,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:18:37,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 177 [2025-03-13 22:18:37,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:18:37,966 INFO L124 PetriNetUnfolderBase]: 394/1371 cut-off events. [2025-03-13 22:18:37,966 INFO L125 PetriNetUnfolderBase]: For 260/274 co-relation queries the response was YES. [2025-03-13 22:18:37,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2673 conditions, 1371 events. 394/1371 cut-off events. For 260/274 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7575 event pairs, 142 based on Foata normal form. 4/1284 useless extension candidates. Maximal degree in co-relation 2554. Up to 686 conditions per place. [2025-03-13 22:18:37,972 INFO L140 encePairwiseOnDemand]: 154/177 looper letters, 78 selfloop transitions, 84 changer transitions 4/286 dead transitions. [2025-03-13 22:18:37,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 286 transitions, 1118 flow [2025-03-13 22:18:37,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:18:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:18:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 893 transitions. [2025-03-13 22:18:37,974 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8408662900188324 [2025-03-13 22:18:37,974 INFO L175 Difference]: Start difference. First operand has 184 places, 191 transitions, 502 flow. Second operand 6 states and 893 transitions. [2025-03-13 22:18:37,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 286 transitions, 1118 flow [2025-03-13 22:18:37,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 286 transitions, 1118 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:18:37,979 INFO L231 Difference]: Finished difference. Result has 194 places, 270 transitions, 1148 flow [2025-03-13 22:18:37,979 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1148, PETRI_PLACES=194, PETRI_TRANSITIONS=270} [2025-03-13 22:18:37,980 INFO L279 CegarLoopForPetriNet]: 180 programPoint places, 14 predicate places. [2025-03-13 22:18:37,980 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 270 transitions, 1148 flow [2025-03-13 22:18:37,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 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 22:18:37,980 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:18:37,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:18:37,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-13 22:18:37,981 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-13 22:18:37,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:18:37,981 INFO L85 PathProgramCache]: Analyzing trace with hash 986323502, now seen corresponding path program 1 times [2025-03-13 22:18:37,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:18:37,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862846237] [2025-03-13 22:18:37,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:18:37,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:18:37,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-13 22:18:38,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-13 22:18:38,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:18:38,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:18:38,313 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 22:18:38,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:18:38,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862846237] [2025-03-13 22:18:38,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862846237] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:18:38,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:18:38,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-13 22:18:38,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888160937] [2025-03-13 22:18:38,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:18:38,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:18:38,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:18:38,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:18:38,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:18:38,437 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 177 [2025-03-13 22:18:38,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 270 transitions, 1148 flow. Second operand has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 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 22:18:38,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:18:38,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 177 [2025-03-13 22:18:38,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:18:38,628 INFO L124 PetriNetUnfolderBase]: 344/1224 cut-off events. [2025-03-13 22:18:38,628 INFO L125 PetriNetUnfolderBase]: For 754/766 co-relation queries the response was YES. [2025-03-13 22:18:38,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3238 conditions, 1224 events. 344/1224 cut-off events. For 754/766 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6696 event pairs, 77 based on Foata normal form. 0/1174 useless extension candidates. Maximal degree in co-relation 3113. Up to 606 conditions per place. [2025-03-13 22:18:38,636 INFO L140 encePairwiseOnDemand]: 166/177 looper letters, 146 selfloop transitions, 37 changer transitions 0/305 dead transitions. [2025-03-13 22:18:38,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 305 transitions, 1692 flow [2025-03-13 22:18:38,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-13 22:18:38,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-13 22:18:38,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 842 transitions. [2025-03-13 22:18:38,640 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7928436911487758 [2025-03-13 22:18:38,640 INFO L175 Difference]: Start difference. First operand has 194 places, 270 transitions, 1148 flow. Second operand 6 states and 842 transitions. [2025-03-13 22:18:38,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 305 transitions, 1692 flow [2025-03-13 22:18:38,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 305 transitions, 1674 flow, removed 9 selfloop flow, removed 0 redundant places. [2025-03-13 22:18:38,651 INFO L231 Difference]: Finished difference. Result has 204 places, 297 transitions, 1472 flow [2025-03-13 22:18:38,651 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=1130, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1472, PETRI_PLACES=204, PETRI_TRANSITIONS=297} [2025-03-13 22:18:38,651 INFO L279 CegarLoopForPetriNet]: 180 programPoint places, 24 predicate places. [2025-03-13 22:18:38,652 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 297 transitions, 1472 flow [2025-03-13 22:18:38,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 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 22:18:38,652 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:18:38,652 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, 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 22:18:38,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-13 22:18:38,652 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-13 22:18:38,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:18:38,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1276092401, now seen corresponding path program 1 times [2025-03-13 22:18:38,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:18:38,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213855323] [2025-03-13 22:18:38,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:18:38,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:18:38,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-13 22:18:38,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-13 22:18:38,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:18:38,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:18:38,740 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 22:18:38,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:18:38,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213855323] [2025-03-13 22:18:38,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213855323] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:18:38,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:18:38,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-13 22:18:38,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533927238] [2025-03-13 22:18:38,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:18:38,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:18:38,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:18:38,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:18:38,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:18:38,747 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 177 [2025-03-13 22:18:38,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 297 transitions, 1472 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 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 22:18:38,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:18:38,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 177 [2025-03-13 22:18:38,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:18:38,831 INFO L124 PetriNetUnfolderBase]: 257/1033 cut-off events. [2025-03-13 22:18:38,831 INFO L125 PetriNetUnfolderBase]: For 847/857 co-relation queries the response was YES. [2025-03-13 22:18:38,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2636 conditions, 1033 events. 257/1033 cut-off events. For 847/857 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5339 event pairs, 18 based on Foata normal form. 2/1009 useless extension candidates. Maximal degree in co-relation 2523. Up to 251 conditions per place. [2025-03-13 22:18:38,836 INFO L140 encePairwiseOnDemand]: 172/177 looper letters, 6 selfloop transitions, 5 changer transitions 0/300 dead transitions. [2025-03-13 22:18:38,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 300 transitions, 1500 flow [2025-03-13 22:18:38,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:18:38,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:18:38,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 520 transitions. [2025-03-13 22:18:38,838 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9792843691148776 [2025-03-13 22:18:38,838 INFO L175 Difference]: Start difference. First operand has 204 places, 297 transitions, 1472 flow. Second operand 3 states and 520 transitions. [2025-03-13 22:18:38,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 300 transitions, 1500 flow [2025-03-13 22:18:38,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 300 transitions, 1444 flow, removed 28 selfloop flow, removed 0 redundant places. [2025-03-13 22:18:38,848 INFO L231 Difference]: Finished difference. Result has 207 places, 299 transitions, 1439 flow [2025-03-13 22:18:38,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=1416, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1439, PETRI_PLACES=207, PETRI_TRANSITIONS=299} [2025-03-13 22:18:38,848 INFO L279 CegarLoopForPetriNet]: 180 programPoint places, 27 predicate places. [2025-03-13 22:18:38,848 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 299 transitions, 1439 flow [2025-03-13 22:18:38,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 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 22:18:38,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:18:38,849 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, 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 22:18:38,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-13 22:18:38,849 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2025-03-13 22:18:38,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:18:38,850 INFO L85 PathProgramCache]: Analyzing trace with hash 571494757, now seen corresponding path program 2 times [2025-03-13 22:18:38,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:18:38,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248411910] [2025-03-13 22:18:38,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-13 22:18:38,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:18:38,864 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 115 statements into 1 equivalence classes. [2025-03-13 22:18:38,885 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-13 22:18:38,885 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-13 22:18:38,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:18:38,885 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-13 22:18:38,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-13 22:18:38,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-13 22:18:38,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:18:38,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-13 22:18:38,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-13 22:18:38,929 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-13 22:18:38,930 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2025-03-13 22:18:38,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2025-03-13 22:18:38,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2025-03-13 22:18:38,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2025-03-13 22:18:38,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2025-03-13 22:18:38,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2025-03-13 22:18:38,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2025-03-13 22:18:38,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2025-03-13 22:18:38,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2025-03-13 22:18:38,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 21 remaining) [2025-03-13 22:18:38,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2025-03-13 22:18:38,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2025-03-13 22:18:38,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2025-03-13 22:18:38,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2025-03-13 22:18:38,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2025-03-13 22:18:38,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2025-03-13 22:18:38,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2025-03-13 22:18:38,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2025-03-13 22:18:38,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2025-03-13 22:18:38,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2025-03-13 22:18:38,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2025-03-13 22:18:38,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-13 22:18:38,935 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:18:38,999 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-13 22:18:38,999 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-13 22:18:39,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 10:18:39 BasicIcfg [2025-03-13 22:18:39,004 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-13 22:18:39,004 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-13 22:18:39,004 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-13 22:18:39,004 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-13 22:18:39,005 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:18:34" (3/4) ... [2025-03-13 22:18:39,006 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-13 22:18:39,064 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 5. [2025-03-13 22:18:39,095 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-13 22:18:39,095 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-13 22:18:39,095 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-13 22:18:39,096 INFO L158 Benchmark]: Toolchain (without parser) took 5954.81ms. Allocated memory was 142.6MB in the beginning and 478.2MB in the end (delta: 335.5MB). Free memory was 110.9MB in the beginning and 332.7MB in the end (delta: -221.8MB). Peak memory consumption was 109.6MB. Max. memory is 16.1GB. [2025-03-13 22:18:39,096 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 201.3MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:18:39,097 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.10ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 72.7MB in the end (delta: 37.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-13 22:18:39,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.35ms. Allocated memory is still 142.6MB. Free memory was 72.3MB in the beginning and 70.0MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:18:39,097 INFO L158 Benchmark]: Boogie Preprocessor took 22.27ms. Allocated memory is still 142.6MB. Free memory was 70.0MB in the beginning and 68.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:18:39,098 INFO L158 Benchmark]: IcfgBuilder took 466.43ms. Allocated memory is still 142.6MB. Free memory was 68.1MB in the beginning and 44.5MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-13 22:18:39,098 INFO L158 Benchmark]: TraceAbstraction took 4880.29ms. Allocated memory was 142.6MB in the beginning and 478.2MB in the end (delta: 335.5MB). Free memory was 44.1MB in the beginning and 349.4MB in the end (delta: -305.4MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. [2025-03-13 22:18:39,098 INFO L158 Benchmark]: Witness Printer took 91.05ms. Allocated memory is still 478.2MB. Free memory was 349.4MB in the beginning and 332.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-13 22:18:39,099 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 201.3MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 459.10ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 72.7MB in the end (delta: 37.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.35ms. Allocated memory is still 142.6MB. Free memory was 72.3MB in the beginning and 70.0MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.27ms. Allocated memory is still 142.6MB. Free memory was 70.0MB in the beginning and 68.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 466.43ms. Allocated memory is still 142.6MB. Free memory was 68.1MB in the beginning and 44.5MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4880.29ms. Allocated memory was 142.6MB in the beginning and 478.2MB in the end (delta: 335.5MB). Free memory was 44.1MB in the beginning and 349.4MB in the end (delta: -305.4MB). Peak memory consumption was 25.7MB. Max. memory is 16.1GB. * Witness Printer took 91.05ms. Allocated memory is still 478.2MB. Free memory was 349.4MB in the beginning and 332.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1237]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; VAL [A={0:0}, B={0:0}] [L1233] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [A={0:0}, A_mutex={1:0}, B={0:0}] [L1234] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}] [L1245] 0 pthread_t t1; VAL [A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}] [L1246] CALL, EXPR 0 new(3) [L1228] 0 struct s *p = malloc(sizeof(struct s)); VAL [A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, \old(x)=3, p={-2:0}, x=3] [L1229] 0 p->datum = x VAL [A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, \old(x)=3, p={-2:0}, x=3] [L1230] 0 p->next = ((void *)0) VAL [A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, \old(x)=3, p={-2:0}, x=3] [L1231] 0 return p; VAL [A={0:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, \old(x)=3, \result={-2:0}, p={-2:0}, x=3] [L1246] RET, EXPR 0 new(3) [L1246] 0 A = new(3) VAL [A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}] [L1247] CALL, EXPR 0 new(5) [L1228] 0 struct s *p = malloc(sizeof(struct s)); VAL [A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, \old(x)=5, p={-3:0}, x=5] [L1229] 0 p->datum = x VAL [A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, \old(x)=5, p={-3:0}, x=5] [L1230] 0 p->next = ((void *)0) VAL [A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, \old(x)=5, p={-3:0}, x=5] [L1231] 0 return p; VAL [A={-2:0}, A_mutex={1:0}, B={0:0}, B_mutex={2:0}, \old(x)=5, \result={-3:0}, p={-3:0}, x=5] [L1247] RET, EXPR 0 new(5) [L1247] 0 B = new(5) VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}] [L1248] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, \old(arg)={0:0}, t1=-1] [L1249] 0 int *data; VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, \old(arg)={0:0}, t1=-1] [L1251] EXPR 0 A->datum VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, \old(arg)={0:0}, t1=-1] [L1251] EXPR 0 A->datum VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, \old(arg)={0:0}, arg={0:0}, t1=-1] [L1251] 0 data = &A->datum VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, \old(arg)={0:0}, arg={0:0}, data={-2:0}, t1=-1] [L1237] EXPR 1 A->datum VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, \old(arg)={0:0}, arg={0:0}] [L1237] 1 A->datum++ VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, \old(arg)={0:0}, arg={0:0}] [L1253] 0 *data = 42 VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, \old(arg)={0:0}, arg={0:0}, data={-2:0}, t1=-1] [L1237] 1 A->datum++ VAL [A={-2:0}, A_mutex={1:0}, B={-3:0}, B_mutex={2:0}, \old(arg)={0:0}, arg={0:0}] 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: p->datum = x [1229] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: B = new(5) [1247] * C: *data = 42 [1253] * C: p->next = ((void *)0) [1230] * C: A = new(3) [1246] * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] and C: A->datum++ [1237] - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: 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: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 235 locations, 21 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: 4.7s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 706 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 450 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 166 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1684 IncrementalHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 166 mSolverCounterUnsat, 10 mSDtfsCounter, 1684 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1472occurred in iteration=8, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 861 NumberOfCodeBlocks, 861 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 737 ConstructedInterpolants, 0 QuantifiedInterpolants, 1168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-13 22:18:39,117 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(DATA-RACE)