./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_44-traces-mine2_true.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/13-privatized_44-traces-mine2_true.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 abd7c6a811fa727af1a8295486441ec66634091da13d54772e1efa33885ef21c --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:19:12,867 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:19:12,922 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:19:12,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:19:12,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:19:12,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:19:12,946 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:19:12,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:19:12,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:19:12,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:19:12,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:19:12,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:19:12,948 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:19:12,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:19:12,948 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:19:12,948 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:19:12,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:19:12,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:19:12,948 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:19:12,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:19:12,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:19:12,949 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:19:12,949 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:19:12,949 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:19:12,949 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:19:12,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:19:12,949 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:19:12,949 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:19:12,949 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:19:12,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:19:12,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:19:12,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:19:12,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:19:12,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:19:12,950 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:19:12,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:19:12,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:19:12,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:19:12,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:19:12,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:19:12,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:19:12,951 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:19:12,951 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 -> abd7c6a811fa727af1a8295486441ec66634091da13d54772e1efa33885ef21c [2025-03-13 22:19:13,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:19:13,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:19:13,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:19:13,199 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:19:13,199 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:19:13,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_44-traces-mine2_true.i [2025-03-13 22:19:14,292 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04cbd4d3/70af17a0f5214cb8b660cbbb55e3111c/FLAG3b8b00cee [2025-03-13 22:19:14,547 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:19:14,548 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_44-traces-mine2_true.i [2025-03-13 22:19:14,558 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04cbd4d3/70af17a0f5214cb8b660cbbb55e3111c/FLAG3b8b00cee [2025-03-13 22:19:14,864 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04cbd4d3/70af17a0f5214cb8b660cbbb55e3111c [2025-03-13 22:19:14,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:19:14,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:19:14,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:19:14,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:19:14,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:19:14,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:19:14" (1/1) ... [2025-03-13 22:19:14,872 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620c8b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:14, skipping insertion in model container [2025-03-13 22:19:14,873 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:19:14" (1/1) ... [2025-03-13 22:19:14,907 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:19:15,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:19:15,202 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:19:15,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:19:15,267 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:19:15,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15 WrapperNode [2025-03-13 22:19:15,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:19:15,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:19:15,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:19:15,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:19:15,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15" (1/1) ... [2025-03-13 22:19:15,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15" (1/1) ... [2025-03-13 22:19:15,304 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 58 [2025-03-13 22:19:15,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:19:15,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:19:15,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:19:15,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:19:15,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15" (1/1) ... [2025-03-13 22:19:15,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15" (1/1) ... [2025-03-13 22:19:15,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15" (1/1) ... [2025-03-13 22:19:15,311 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15" (1/1) ... [2025-03-13 22:19:15,314 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15" (1/1) ... [2025-03-13 22:19:15,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15" (1/1) ... [2025-03-13 22:19:15,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15" (1/1) ... [2025-03-13 22:19:15,316 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15" (1/1) ... [2025-03-13 22:19:15,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:19:15,318 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:19:15,318 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:19:15,318 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:19:15,319 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15" (1/1) ... [2025-03-13 22:19:15,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:19:15,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:19:15,343 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 22:19:15,346 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 22:19:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-13 22:19:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:19:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-13 22:19:15,363 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-13 22:19:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:19:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-13 22:19:15,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:19:15,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:19:15,364 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 22:19:15,439 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:19:15,441 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:19:15,553 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:19:15,553 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:19:15,553 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:19:15,580 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:19:15,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:19:15 BoogieIcfgContainer [2025-03-13 22:19:15,581 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:19:15,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:19:15,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:19:15,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:19:15,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:19:14" (1/3) ... [2025-03-13 22:19:15,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b45795d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:19:15, skipping insertion in model container [2025-03-13 22:19:15,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:19:15" (2/3) ... [2025-03-13 22:19:15,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b45795d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:19:15, skipping insertion in model container [2025-03-13 22:19:15,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:19:15" (3/3) ... [2025-03-13 22:19:15,587 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_44-traces-mine2_true.i [2025-03-13 22:19:15,598 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:19:15,601 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_44-traces-mine2_true.i that has 2 procedures, 97 locations, 1 initial locations, 0 loop locations, and 5 error locations. [2025-03-13 22:19:15,601 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:19:15,647 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-13 22:19:15,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 100 transitions, 204 flow [2025-03-13 22:19:15,714 INFO L124 PetriNetUnfolderBase]: 4/99 cut-off events. [2025-03-13 22:19:15,716 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:19:15,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 4/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2025-03-13 22:19:15,721 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 100 transitions, 204 flow [2025-03-13 22:19:15,725 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 99 transitions, 201 flow [2025-03-13 22:19:15,730 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:19:15,742 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;@39a1ed77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:19:15,742 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-13 22:19:15,752 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:19:15,753 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-03-13 22:19:15,753 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:19:15,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:19:15,753 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] [2025-03-13 22:19:15,754 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-13 22:19:15,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:19:15,758 INFO L85 PathProgramCache]: Analyzing trace with hash -205453053, now seen corresponding path program 1 times [2025-03-13 22:19:15,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:19:15,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226687945] [2025-03-13 22:19:15,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:19:15,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:19:15,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-13 22:19:15,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-13 22:19:15,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:19:15,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:19:15,917 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 22:19:15,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:19:15,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226687945] [2025-03-13 22:19:15,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226687945] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:19:15,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:19:15,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:19:15,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973164999] [2025-03-13 22:19:15,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:19:15,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:19:15,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:19:15,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:19:15,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:19:15,965 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 100 [2025-03-13 22:19:15,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 99 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 22:19:15,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:19:15,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 100 [2025-03-13 22:19:15,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:19:16,096 INFO L124 PetriNetUnfolderBase]: 71/516 cut-off events. [2025-03-13 22:19:16,096 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-13 22:19:16,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 516 events. 71/516 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2968 event pairs, 13 based on Foata normal form. 56/511 useless extension candidates. Maximal degree in co-relation 656. Up to 92 conditions per place. [2025-03-13 22:19:16,101 INFO L140 encePairwiseOnDemand]: 87/100 looper letters, 19 selfloop transitions, 7 changer transitions 1/102 dead transitions. [2025-03-13 22:19:16,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 102 transitions, 261 flow [2025-03-13 22:19:16,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:19:16,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:19:16,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2025-03-13 22:19:16,111 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9033333333333333 [2025-03-13 22:19:16,113 INFO L175 Difference]: Start difference. First operand has 99 places, 99 transitions, 201 flow. Second operand 3 states and 271 transitions. [2025-03-13 22:19:16,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 102 transitions, 261 flow [2025-03-13 22:19:16,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 102 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:19:16,121 INFO L231 Difference]: Finished difference. Result has 98 places, 97 transitions, 240 flow [2025-03-13 22:19:16,122 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=98, PETRI_TRANSITIONS=97} [2025-03-13 22:19:16,124 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, -1 predicate places. [2025-03-13 22:19:16,125 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 97 transitions, 240 flow [2025-03-13 22:19:16,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 22:19:16,126 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:19:16,126 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 22:19:16,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:19:16,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-13 22:19:16,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:19:16,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2145746936, now seen corresponding path program 1 times [2025-03-13 22:19:16,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:19:16,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134743752] [2025-03-13 22:19:16,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:19:16,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:19:16,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-13 22:19:16,154 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-13 22:19:16,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:19:16,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:19:16,220 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 22:19:16,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:19:16,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134743752] [2025-03-13 22:19:16,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134743752] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:19:16,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:19:16,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:19:16,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903665119] [2025-03-13 22:19:16,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:19:16,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:19:16,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:19:16,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:19:16,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:19:16,249 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 100 [2025-03-13 22:19:16,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 97 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 22:19:16,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:19:16,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 100 [2025-03-13 22:19:16,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:19:16,325 INFO L124 PetriNetUnfolderBase]: 76/565 cut-off events. [2025-03-13 22:19:16,325 INFO L125 PetriNetUnfolderBase]: For 113/115 co-relation queries the response was YES. [2025-03-13 22:19:16,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 565 events. 76/565 cut-off events. For 113/115 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3390 event pairs, 30 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 850. Up to 150 conditions per place. [2025-03-13 22:19:16,331 INFO L140 encePairwiseOnDemand]: 94/100 looper letters, 20 selfloop transitions, 7 changer transitions 0/104 dead transitions. [2025-03-13 22:19:16,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 104 transitions, 318 flow [2025-03-13 22:19:16,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:19:16,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:19:16,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2025-03-13 22:19:16,334 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8566666666666667 [2025-03-13 22:19:16,334 INFO L175 Difference]: Start difference. First operand has 98 places, 97 transitions, 240 flow. Second operand 3 states and 257 transitions. [2025-03-13 22:19:16,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 104 transitions, 318 flow [2025-03-13 22:19:16,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 104 transitions, 300 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:19:16,337 INFO L231 Difference]: Finished difference. Result has 100 places, 102 transitions, 282 flow [2025-03-13 22:19:16,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=100, PETRI_TRANSITIONS=102} [2025-03-13 22:19:16,338 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 1 predicate places. [2025-03-13 22:19:16,339 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 102 transitions, 282 flow [2025-03-13 22:19:16,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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 22:19:16,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:19:16,339 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] [2025-03-13 22:19:16,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:19:16,339 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-13 22:19:16,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:19:16,341 INFO L85 PathProgramCache]: Analyzing trace with hash -424155520, now seen corresponding path program 1 times [2025-03-13 22:19:16,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:19:16,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571270394] [2025-03-13 22:19:16,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:19:16,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:19:16,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-13 22:19:16,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-13 22:19:16,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:19:16,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:19:16,464 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 22:19:16,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:19:16,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571270394] [2025-03-13 22:19:16,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571270394] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:19:16,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:19:16,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-13 22:19:16,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433634179] [2025-03-13 22:19:16,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:19:16,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:19:16,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:19:16,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:19:16,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:19:16,480 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 100 [2025-03-13 22:19:16,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 102 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 22:19:16,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:19:16,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 100 [2025-03-13 22:19:16,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:19:16,512 INFO L124 PetriNetUnfolderBase]: 5/227 cut-off events. [2025-03-13 22:19:16,513 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-03-13 22:19:16,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 227 events. 5/227 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 779 event pairs, 0 based on Foata normal form. 4/215 useless extension candidates. Maximal degree in co-relation 261. Up to 19 conditions per place. [2025-03-13 22:19:16,514 INFO L140 encePairwiseOnDemand]: 96/100 looper letters, 5 selfloop transitions, 4 changer transitions 1/96 dead transitions. [2025-03-13 22:19:16,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 96 transitions, 256 flow [2025-03-13 22:19:16,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:19:16,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:19:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2025-03-13 22:19:16,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9 [2025-03-13 22:19:16,517 INFO L175 Difference]: Start difference. First operand has 100 places, 102 transitions, 282 flow. Second operand 3 states and 270 transitions. [2025-03-13 22:19:16,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 96 transitions, 256 flow [2025-03-13 22:19:16,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 96 transitions, 236 flow, removed 6 selfloop flow, removed 4 redundant places. [2025-03-13 22:19:16,519 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 220 flow [2025-03-13 22:19:16,520 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2025-03-13 22:19:16,520 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, -2 predicate places. [2025-03-13 22:19:16,520 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 220 flow [2025-03-13 22:19:16,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 22:19:16,520 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:19:16,520 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] [2025-03-13 22:19:16,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:19:16,522 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-13 22:19:16,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:19:16,522 INFO L85 PathProgramCache]: Analyzing trace with hash -786246460, now seen corresponding path program 1 times [2025-03-13 22:19:16,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:19:16,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953674721] [2025-03-13 22:19:16,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:19:16,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:19:16,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-13 22:19:16,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-13 22:19:16,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:19:16,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:19:16,569 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 22:19:16,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:19:16,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953674721] [2025-03-13 22:19:16,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953674721] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:19:16,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:19:16,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:19:16,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620350165] [2025-03-13 22:19:16,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:19:16,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:19:16,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:19:16,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:19:16,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:19:16,599 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 100 [2025-03-13 22:19:16,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 22:19:16,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:19:16,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 100 [2025-03-13 22:19:16,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:19:16,629 INFO L124 PetriNetUnfolderBase]: 10/211 cut-off events. [2025-03-13 22:19:16,629 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2025-03-13 22:19:16,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 211 events. 10/211 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 702 event pairs, 6 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 267. Up to 43 conditions per place. [2025-03-13 22:19:16,630 INFO L140 encePairwiseOnDemand]: 97/100 looper letters, 15 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2025-03-13 22:19:16,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 93 transitions, 252 flow [2025-03-13 22:19:16,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:19:16,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:19:16,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2025-03-13 22:19:16,632 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2025-03-13 22:19:16,632 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 220 flow. Second operand 3 states and 250 transitions. [2025-03-13 22:19:16,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 93 transitions, 252 flow [2025-03-13 22:19:16,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 93 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:19:16,635 INFO L231 Difference]: Finished difference. Result has 98 places, 93 transitions, 222 flow [2025-03-13 22:19:16,635 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=98, PETRI_TRANSITIONS=93} [2025-03-13 22:19:16,635 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, -1 predicate places. [2025-03-13 22:19:16,635 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 93 transitions, 222 flow [2025-03-13 22:19:16,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 22:19:16,636 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:19:16,636 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] [2025-03-13 22:19:16,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 22:19:16,636 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-13 22:19:16,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:19:16,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1468132976, now seen corresponding path program 1 times [2025-03-13 22:19:16,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:19:16,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592747981] [2025-03-13 22:19:16,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:19:16,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:19:16,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-13 22:19:16,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-13 22:19:16,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:19:16,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:19:16,670 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 22:19:16,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:19:16,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592747981] [2025-03-13 22:19:16,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592747981] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:19:16,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:19:16,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:19:16,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121727088] [2025-03-13 22:19:16,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:19:16,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:19:16,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:19:16,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:19:16,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:19:16,689 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 100 [2025-03-13 22:19:16,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 93 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 22:19:16,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:19:16,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 100 [2025-03-13 22:19:16,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:19:16,753 INFO L124 PetriNetUnfolderBase]: 33/347 cut-off events. [2025-03-13 22:19:16,753 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2025-03-13 22:19:16,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 347 events. 33/347 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1590 event pairs, 12 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 479. Up to 74 conditions per place. [2025-03-13 22:19:16,754 INFO L140 encePairwiseOnDemand]: 94/100 looper letters, 16 selfloop transitions, 6 changer transitions 4/100 dead transitions. [2025-03-13 22:19:16,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 100 transitions, 294 flow [2025-03-13 22:19:16,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:19:16,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:19:16,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 257 transitions. [2025-03-13 22:19:16,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8566666666666667 [2025-03-13 22:19:16,756 INFO L175 Difference]: Start difference. First operand has 98 places, 93 transitions, 222 flow. Second operand 3 states and 257 transitions. [2025-03-13 22:19:16,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 100 transitions, 294 flow [2025-03-13 22:19:16,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 100 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:19:16,758 INFO L231 Difference]: Finished difference. Result has 100 places, 94 transitions, 254 flow [2025-03-13 22:19:16,758 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=100, PETRI_TRANSITIONS=94} [2025-03-13 22:19:16,759 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, 1 predicate places. [2025-03-13 22:19:16,759 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 94 transitions, 254 flow [2025-03-13 22:19:16,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 22:19:16,759 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:19:16,759 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] [2025-03-13 22:19:16,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-13 22:19:16,761 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-03-13 22:19:16,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:19:16,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2096930978, now seen corresponding path program 1 times [2025-03-13 22:19:16,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:19:16,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10631528] [2025-03-13 22:19:16,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:19:16,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:19:16,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-13 22:19:16,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-13 22:19:16,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:19:16,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:19:16,955 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 22:19:16,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:19:16,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10631528] [2025-03-13 22:19:16,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10631528] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:19:16,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:19:16,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-13 22:19:16,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678746008] [2025-03-13 22:19:16,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:19:16,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-13 22:19:16,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:19:16,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-13 22:19:16,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-13 22:19:17,013 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 100 [2025-03-13 22:19:17,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 94 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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 22:19:17,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:19:17,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 100 [2025-03-13 22:19:17,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:19:17,043 INFO L124 PetriNetUnfolderBase]: 0/82 cut-off events. [2025-03-13 22:19:17,044 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-13 22:19:17,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 82 events. 0/82 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 67 event pairs, 0 based on Foata normal form. 1/81 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2025-03-13 22:19:17,044 INFO L140 encePairwiseOnDemand]: 96/100 looper letters, 0 selfloop transitions, 0 changer transitions 82/82 dead transitions. [2025-03-13 22:19:17,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 82 transitions, 212 flow [2025-03-13 22:19:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-13 22:19:17,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-13 22:19:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 434 transitions. [2025-03-13 22:19:17,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.868 [2025-03-13 22:19:17,052 INFO L175 Difference]: Start difference. First operand has 100 places, 94 transitions, 254 flow. Second operand 5 states and 434 transitions. [2025-03-13 22:19:17,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 82 transitions, 212 flow [2025-03-13 22:19:17,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 82 transitions, 185 flow, removed 7 selfloop flow, removed 7 redundant places. [2025-03-13 22:19:17,053 INFO L231 Difference]: Finished difference. Result has 90 places, 0 transitions, 0 flow [2025-03-13 22:19:17,053 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=90, PETRI_TRANSITIONS=0} [2025-03-13 22:19:17,054 INFO L279 CegarLoopForPetriNet]: 99 programPoint places, -9 predicate places. [2025-03-13 22:19:17,054 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 0 transitions, 0 flow [2025-03-13 22:19:17,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.16666666666667) internal successors, (517), 6 states have internal predecessors, (517), 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 22:19:17,056 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-03-13 22:19:17,056 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-03-13 22:19:17,056 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2025-03-13 22:19:17,056 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-03-13 22:19:17,056 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2025-03-13 22:19:17,056 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2025-03-13 22:19:17,056 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-03-13 22:19:17,057 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-03-13 22:19:17,057 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-03-13 22:19:17,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-13 22:19:17,057 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-13 22:19:17,061 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-13 22:19:17,061 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-13 22:19:17,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 10:19:17 BasicIcfg [2025-03-13 22:19:17,066 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-13 22:19:17,067 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-13 22:19:17,067 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-13 22:19:17,067 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-13 22:19:17,067 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:19:15" (3/4) ... [2025-03-13 22:19:17,069 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-13 22:19:17,071 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-13 22:19:17,073 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-13 22:19:17,073 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-13 22:19:17,074 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-13 22:19:17,074 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-13 22:19:17,122 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-13 22:19:17,122 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-13 22:19:17,122 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-13 22:19:17,123 INFO L158 Benchmark]: Toolchain (without parser) took 2255.82ms. Allocated memory is still 167.8MB. Free memory was 129.0MB in the beginning and 69.2MB in the end (delta: 59.8MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2025-03-13 22:19:17,123 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 192.9MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:19:17,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.69ms. Allocated memory is still 167.8MB. Free memory was 128.7MB in the beginning and 109.4MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-13 22:19:17,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.28ms. Allocated memory is still 167.8MB. Free memory was 109.4MB in the beginning and 107.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:19:17,123 INFO L158 Benchmark]: Boogie Preprocessor took 12.22ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 106.7MB in the end (delta: 859.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:19:17,123 INFO L158 Benchmark]: IcfgBuilder took 262.58ms. Allocated memory is still 167.8MB. Free memory was 106.7MB in the beginning and 91.9MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:19:17,123 INFO L158 Benchmark]: TraceAbstraction took 1484.11ms. Allocated memory is still 167.8MB. Free memory was 91.1MB in the beginning and 74.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2025-03-13 22:19:17,123 INFO L158 Benchmark]: Witness Printer took 55.51ms. Allocated memory is still 167.8MB. Free memory was 74.7MB in the beginning and 69.2MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:19:17,124 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 192.9MB. Free memory is still 119.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.69ms. Allocated memory is still 167.8MB. Free memory was 128.7MB in the beginning and 109.4MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.28ms. Allocated memory is still 167.8MB. Free memory was 109.4MB in the beginning and 107.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.22ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 106.7MB in the end (delta: 859.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 262.58ms. Allocated memory is still 167.8MB. Free memory was 106.7MB in the beginning and 91.9MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1484.11ms. Allocated memory is still 167.8MB. Free memory was 91.1MB in the beginning and 74.7MB in the end (delta: 16.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Witness Printer took 55.51ms. Allocated memory is still 167.8MB. Free memory was 74.7MB in the beginning and 69.2MB in the end (delta: 5.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 686]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 128 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 205 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 84 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 310 IncrementalHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 36 mSDtfsCounter, 310 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-13 22:19:17,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE