./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8fc3dc66 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/weaver/popl20-bad-counter-queue.wvr.c -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 387879bf92b16ead997b40b3e249348f8a6b399496756f9bc3c41b6dc3c21353 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:13:38,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:13:38,990 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 11:13:38,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:13:38,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:13:39,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:13:39,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:13:39,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:13:39,022 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:13:39,022 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:13:39,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:13:39,023 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:13:39,023 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:13:39,024 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:13:39,024 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:13:39,024 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:13:39,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:13:39,024 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:13:39,024 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:13:39,024 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 11:13:39,024 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 11:13:39,024 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:13:39,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:13:39,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:13:39,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:13:39,024 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:13:39,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:13:39,024 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 -> 387879bf92b16ead997b40b3e249348f8a6b399496756f9bc3c41b6dc3c21353 [2025-03-17 11:13:39,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:13:39,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:13:39,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:13:39,291 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:13:39,291 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:13:39,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c [2025-03-17 11:13:40,447 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1211afaf8/6f016a8b306448968c707d7d7a513e1e/FLAG0583d01e6 [2025-03-17 11:13:40,704 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:13:40,712 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-counter-queue.wvr.c [2025-03-17 11:13:40,719 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1211afaf8/6f016a8b306448968c707d7d7a513e1e/FLAG0583d01e6 [2025-03-17 11:13:41,024 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1211afaf8/6f016a8b306448968c707d7d7a513e1e [2025-03-17 11:13:41,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:13:41,027 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:13:41,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:13:41,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:13:41,031 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:13:41,032 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64a4e0ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41, skipping insertion in model container [2025-03-17 11:13:41,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:13:41,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:13:41,185 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:13:41,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:13:41,226 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:13:41,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41 WrapperNode [2025-03-17 11:13:41,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:13:41,228 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:13:41,229 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:13:41,229 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:13:41,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,264 INFO L138 Inliner]: procedures = 23, calls = 23, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 166 [2025-03-17 11:13:41,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:13:41,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:13:41,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:13:41,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:13:41,272 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,286 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:13:41,302 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:13:41,302 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:13:41,302 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:13:41,303 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41" (1/1) ... [2025-03-17 11:13:41,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:13:41,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:13:41,342 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) [2025-03-17 11:13:41,344 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 [2025-03-17 11:13:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:13:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-17 11:13:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-17 11:13:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-17 11:13:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-17 11:13:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 11:13:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 11:13:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 11:13:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:13:41,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:13:41,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 11:13:41,367 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 11:13:41,451 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:13:41,453 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:13:41,707 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 11:13:41,708 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:13:41,727 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:13:41,728 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:13:41,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:13:41 BoogieIcfgContainer [2025-03-17 11:13:41,730 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:13:41,732 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:13:41,732 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:13:41,736 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:13:41,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:13:41" (1/3) ... [2025-03-17 11:13:41,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32aeec81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:13:41, skipping insertion in model container [2025-03-17 11:13:41,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:13:41" (2/3) ... [2025-03-17 11:13:41,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32aeec81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:13:41, skipping insertion in model container [2025-03-17 11:13:41,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:13:41" (3/3) ... [2025-03-17 11:13:41,739 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue.wvr.c [2025-03-17 11:13:41,750 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:13:41,753 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-counter-queue.wvr.c that has 3 procedures, 209 locations, 1 initial locations, 3 loop locations, and 10 error locations. [2025-03-17 11:13:41,753 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 11:13:41,835 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 11:13:41,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 220 transitions, 454 flow [2025-03-17 11:13:41,945 INFO L124 PetriNetUnfolderBase]: 12/218 cut-off events. [2025-03-17 11:13:41,948 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 11:13:41,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 218 events. 12/218 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 336 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 144. Up to 2 conditions per place. [2025-03-17 11:13:41,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 220 transitions, 454 flow [2025-03-17 11:13:41,961 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 201 transitions, 411 flow [2025-03-17 11:13:41,969 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:13:41,978 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;@5430183, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:13:41,980 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-03-17 11:13:41,986 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 11:13:41,986 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2025-03-17 11:13:41,987 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:13:41,987 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:13:41,987 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:13:41,989 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-03-17 11:13:41,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:13:41,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1125254297, now seen corresponding path program 1 times [2025-03-17 11:13:42,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:13:42,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531896880] [2025-03-17 11:13:42,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:13:42,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:13:42,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 11:13:42,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 11:13:42,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:13:42,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:13:42,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:13:42,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:13:42,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531896880] [2025-03-17 11:13:42,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531896880] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:13:42,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:13:42,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:13:42,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331355911] [2025-03-17 11:13:42,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:13:42,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:13:42,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:13:42,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:13:42,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:13:42,196 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 220 [2025-03-17 11:13:42,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 201 transitions, 411 flow. Second operand has 3 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 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) [2025-03-17 11:13:42,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:13:42,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 220 [2025-03-17 11:13:42,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:13:42,294 INFO L124 PetriNetUnfolderBase]: 14/355 cut-off events. [2025-03-17 11:13:42,294 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-03-17 11:13:42,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 355 events. 14/355 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 932 event pairs, 8 based on Foata normal form. 14/330 useless extension candidates. Maximal degree in co-relation 297. Up to 31 conditions per place. [2025-03-17 11:13:42,298 INFO L140 encePairwiseOnDemand]: 209/220 looper letters, 11 selfloop transitions, 2 changer transitions 2/192 dead transitions. [2025-03-17 11:13:42,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 192 transitions, 419 flow [2025-03-17 11:13:42,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:13:42,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:13:42,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 604 transitions. [2025-03-17 11:13:42,308 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9151515151515152 [2025-03-17 11:13:42,309 INFO L175 Difference]: Start difference. First operand has 197 places, 201 transitions, 411 flow. Second operand 3 states and 604 transitions. [2025-03-17 11:13:42,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 192 transitions, 419 flow [2025-03-17 11:13:42,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 192 transitions, 414 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 11:13:42,334 INFO L231 Difference]: Finished difference. Result has 195 places, 190 transitions, 388 flow [2025-03-17 11:13:42,336 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=195, PETRI_TRANSITIONS=190} [2025-03-17 11:13:42,343 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -2 predicate places. [2025-03-17 11:13:42,343 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 190 transitions, 388 flow [2025-03-17 11:13:42,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.33333333333334) internal successors, (586), 3 states have internal predecessors, (586), 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) [2025-03-17 11:13:42,344 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:13:42,344 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] [2025-03-17 11:13:42,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 11:13:42,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-03-17 11:13:42,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:13:42,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1420694699, now seen corresponding path program 1 times [2025-03-17 11:13:42,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:13:42,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611299216] [2025-03-17 11:13:42,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:13:42,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:13:42,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-17 11:13:42,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 11:13:42,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:13:42,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:13:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:13:42,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:13:42,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611299216] [2025-03-17 11:13:42,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611299216] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:13:42,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:13:42,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:13:42,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399143493] [2025-03-17 11:13:42,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:13:42,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:13:42,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:13:42,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:13:42,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:13:42,402 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 220 [2025-03-17 11:13:42,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 190 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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) [2025-03-17 11:13:42,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:13:42,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 220 [2025-03-17 11:13:42,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:13:42,465 INFO L124 PetriNetUnfolderBase]: 26/501 cut-off events. [2025-03-17 11:13:42,465 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-17 11:13:42,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 501 events. 26/501 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1918 event pairs, 15 based on Foata normal form. 0/453 useless extension candidates. Maximal degree in co-relation 538. Up to 49 conditions per place. [2025-03-17 11:13:42,471 INFO L140 encePairwiseOnDemand]: 216/220 looper letters, 11 selfloop transitions, 1 changer transitions 0/187 dead transitions. [2025-03-17 11:13:42,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 187 transitions, 406 flow [2025-03-17 11:13:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:13:42,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:13:42,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 597 transitions. [2025-03-17 11:13:42,475 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9045454545454545 [2025-03-17 11:13:42,475 INFO L175 Difference]: Start difference. First operand has 195 places, 190 transitions, 388 flow. Second operand 3 states and 597 transitions. [2025-03-17 11:13:42,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 187 transitions, 406 flow [2025-03-17 11:13:42,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 187 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:13:42,480 INFO L231 Difference]: Finished difference. Result has 190 places, 187 transitions, 380 flow [2025-03-17 11:13:42,481 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=380, PETRI_PLACES=190, PETRI_TRANSITIONS=187} [2025-03-17 11:13:42,482 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -7 predicate places. [2025-03-17 11:13:42,482 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 187 transitions, 380 flow [2025-03-17 11:13:42,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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) [2025-03-17 11:13:42,483 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:13:42,483 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] [2025-03-17 11:13:42,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 11:13:42,483 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-03-17 11:13:42,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:13:42,483 INFO L85 PathProgramCache]: Analyzing trace with hash 302101648, now seen corresponding path program 1 times [2025-03-17 11:13:42,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:13:42,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330006350] [2025-03-17 11:13:42,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:13:42,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:13:42,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-17 11:13:42,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 11:13:42,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:13:42,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:13:43,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:13:43,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:13:43,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330006350] [2025-03-17 11:13:43,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330006350] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:13:43,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:13:43,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:13:43,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738118594] [2025-03-17 11:13:43,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:13:43,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:13:43,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:13:43,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:13:43,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:13:43,158 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 220 [2025-03-17 11:13:43,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 187 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 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) [2025-03-17 11:13:43,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:13:43,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 220 [2025-03-17 11:13:43,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:13:43,258 INFO L124 PetriNetUnfolderBase]: 56/629 cut-off events. [2025-03-17 11:13:43,259 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-03-17 11:13:43,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 629 events. 56/629 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2752 event pairs, 35 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 733. Up to 109 conditions per place. [2025-03-17 11:13:43,264 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 21 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2025-03-17 11:13:43,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 186 transitions, 430 flow [2025-03-17 11:13:43,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:13:43,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:13:43,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1119 transitions. [2025-03-17 11:13:43,267 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8477272727272728 [2025-03-17 11:13:43,267 INFO L175 Difference]: Start difference. First operand has 190 places, 187 transitions, 380 flow. Second operand 6 states and 1119 transitions. [2025-03-17 11:13:43,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 186 transitions, 430 flow [2025-03-17 11:13:43,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 186 transitions, 429 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:13:43,274 INFO L231 Difference]: Finished difference. Result has 193 places, 186 transitions, 387 flow [2025-03-17 11:13:43,274 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=193, PETRI_TRANSITIONS=186} [2025-03-17 11:13:43,275 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -4 predicate places. [2025-03-17 11:13:43,275 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 186 transitions, 387 flow [2025-03-17 11:13:43,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.5) internal successors, (1101), 6 states have internal predecessors, (1101), 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) [2025-03-17 11:13:43,276 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:13:43,276 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] [2025-03-17 11:13:43,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 11:13:43,276 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-03-17 11:13:43,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:13:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1158865877, now seen corresponding path program 1 times [2025-03-17 11:13:43,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:13:43,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48647831] [2025-03-17 11:13:43,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:13:43,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:13:43,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-17 11:13:43,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 11:13:43,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:13:43,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:13:43,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:13:43,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:13:43,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48647831] [2025-03-17 11:13:43,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48647831] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:13:43,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:13:43,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:13:43,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519611124] [2025-03-17 11:13:43,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:13:43,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:13:43,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:13:43,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:13:43,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:13:43,341 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 220 [2025-03-17 11:13:43,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 186 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 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) [2025-03-17 11:13:43,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:13:43,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 220 [2025-03-17 11:13:43,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:13:43,383 INFO L124 PetriNetUnfolderBase]: 13/303 cut-off events. [2025-03-17 11:13:43,386 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-17 11:13:43,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 303 events. 13/303 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 706 event pairs, 8 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 329. Up to 27 conditions per place. [2025-03-17 11:13:43,388 INFO L140 encePairwiseOnDemand]: 217/220 looper letters, 10 selfloop transitions, 2 changer transitions 0/185 dead transitions. [2025-03-17 11:13:43,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 185 transitions, 409 flow [2025-03-17 11:13:43,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:13:43,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:13:43,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 598 transitions. [2025-03-17 11:13:43,390 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.906060606060606 [2025-03-17 11:13:43,390 INFO L175 Difference]: Start difference. First operand has 193 places, 186 transitions, 387 flow. Second operand 3 states and 598 transitions. [2025-03-17 11:13:43,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 185 transitions, 409 flow [2025-03-17 11:13:43,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 185 transitions, 399 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 11:13:43,395 INFO L231 Difference]: Finished difference. Result has 189 places, 185 transitions, 379 flow [2025-03-17 11:13:43,395 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=379, PETRI_PLACES=189, PETRI_TRANSITIONS=185} [2025-03-17 11:13:43,396 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -8 predicate places. [2025-03-17 11:13:43,397 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 185 transitions, 379 flow [2025-03-17 11:13:43,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 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) [2025-03-17 11:13:43,397 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:13:43,397 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] [2025-03-17 11:13:43,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 11:13:43,398 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-03-17 11:13:43,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:13:43,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1359178584, now seen corresponding path program 1 times [2025-03-17 11:13:43,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:13:43,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396094446] [2025-03-17 11:13:43,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:13:43,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:13:43,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-17 11:13:43,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-17 11:13:43,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:13:43,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:13:43,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:13:43,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:13:43,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396094446] [2025-03-17 11:13:43,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396094446] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:13:43,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:13:43,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:13:43,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471089267] [2025-03-17 11:13:43,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:13:43,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:13:43,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:13:43,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:13:43,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:13:43,448 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 220 [2025-03-17 11:13:43,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 185 transitions, 379 flow. Second operand has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 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) [2025-03-17 11:13:43,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:13:43,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 220 [2025-03-17 11:13:43,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:13:43,511 INFO L124 PetriNetUnfolderBase]: 30/512 cut-off events. [2025-03-17 11:13:43,511 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-17 11:13:43,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 512 events. 30/512 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1976 event pairs, 6 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 556. Up to 51 conditions per place. [2025-03-17 11:13:43,515 INFO L140 encePairwiseOnDemand]: 216/220 looper letters, 12 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2025-03-17 11:13:43,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 187 transitions, 414 flow [2025-03-17 11:13:43,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:13:43,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:13:43,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 607 transitions. [2025-03-17 11:13:43,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9196969696969697 [2025-03-17 11:13:43,517 INFO L175 Difference]: Start difference. First operand has 189 places, 185 transitions, 379 flow. Second operand 3 states and 607 transitions. [2025-03-17 11:13:43,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 187 transitions, 414 flow [2025-03-17 11:13:43,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 187 transitions, 410 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:13:43,521 INFO L231 Difference]: Finished difference. Result has 188 places, 185 transitions, 385 flow [2025-03-17 11:13:43,526 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=385, PETRI_PLACES=188, PETRI_TRANSITIONS=185} [2025-03-17 11:13:43,527 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -9 predicate places. [2025-03-17 11:13:43,527 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 185 transitions, 385 flow [2025-03-17 11:13:43,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.33333333333334) internal successors, (595), 3 states have internal predecessors, (595), 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) [2025-03-17 11:13:43,527 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:13:43,529 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] [2025-03-17 11:13:43,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 11:13:43,529 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-03-17 11:13:43,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:13:43,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1738574757, now seen corresponding path program 1 times [2025-03-17 11:13:43,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:13:43,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693514933] [2025-03-17 11:13:43,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:13:43,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:13:43,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-17 11:13:43,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-17 11:13:43,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:13:43,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:13:43,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:13:43,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:13:43,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693514933] [2025-03-17 11:13:43,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693514933] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:13:43,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:13:43,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:13:43,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52332076] [2025-03-17 11:13:43,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:13:43,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 11:13:43,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:13:43,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 11:13:43,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:13:43,811 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 220 [2025-03-17 11:13:43,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 185 transitions, 385 flow. Second operand has 7 states, 7 states have (on average 190.85714285714286) internal successors, (1336), 7 states have internal predecessors, (1336), 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) [2025-03-17 11:13:43,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:13:43,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 220 [2025-03-17 11:13:43,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:13:43,948 INFO L124 PetriNetUnfolderBase]: 33/600 cut-off events. [2025-03-17 11:13:43,948 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-17 11:13:43,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 729 conditions, 600 events. 33/600 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2414 event pairs, 14 based on Foata normal form. 3/563 useless extension candidates. Maximal degree in co-relation 701. Up to 49 conditions per place. [2025-03-17 11:13:43,951 INFO L140 encePairwiseOnDemand]: 207/220 looper letters, 19 selfloop transitions, 14 changer transitions 0/198 dead transitions. [2025-03-17 11:13:43,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 198 transitions, 483 flow [2025-03-17 11:13:43,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:13:43,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 11:13:43,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1924 transitions. [2025-03-17 11:13:43,954 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8745454545454545 [2025-03-17 11:13:43,954 INFO L175 Difference]: Start difference. First operand has 188 places, 185 transitions, 385 flow. Second operand 10 states and 1924 transitions. [2025-03-17 11:13:43,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 198 transitions, 483 flow [2025-03-17 11:13:43,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 198 transitions, 483 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:13:43,958 INFO L231 Difference]: Finished difference. Result has 201 places, 192 transitions, 451 flow [2025-03-17 11:13:43,958 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=451, PETRI_PLACES=201, PETRI_TRANSITIONS=192} [2025-03-17 11:13:43,959 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, 4 predicate places. [2025-03-17 11:13:43,959 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 192 transitions, 451 flow [2025-03-17 11:13:43,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 190.85714285714286) internal successors, (1336), 7 states have internal predecessors, (1336), 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) [2025-03-17 11:13:43,960 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:13:43,960 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] [2025-03-17 11:13:43,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 11:13:43,960 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-03-17 11:13:43,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:13:43,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1630922599, now seen corresponding path program 1 times [2025-03-17 11:13:43,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:13:43,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844701262] [2025-03-17 11:13:43,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:13:43,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:13:43,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-17 11:13:43,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-17 11:13:43,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:13:43,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:13:44,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:13:44,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:13:44,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844701262] [2025-03-17 11:13:44,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844701262] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:13:44,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:13:44,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 11:13:44,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109795891] [2025-03-17 11:13:44,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:13:44,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 11:13:44,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:13:44,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 11:13:44,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:13:44,209 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 220 [2025-03-17 11:13:44,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 192 transitions, 451 flow. Second operand has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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) [2025-03-17 11:13:44,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:13:44,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 220 [2025-03-17 11:13:44,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:13:44,328 INFO L124 PetriNetUnfolderBase]: 31/446 cut-off events. [2025-03-17 11:13:44,328 INFO L125 PetriNetUnfolderBase]: For 32/33 co-relation queries the response was YES. [2025-03-17 11:13:44,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 446 events. 31/446 cut-off events. For 32/33 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1542 event pairs, 15 based on Foata normal form. 2/428 useless extension candidates. Maximal degree in co-relation 544. Up to 53 conditions per place. [2025-03-17 11:13:44,333 INFO L140 encePairwiseOnDemand]: 207/220 looper letters, 13 selfloop transitions, 8 changer transitions 12/198 dead transitions. [2025-03-17 11:13:44,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 198 transitions, 530 flow [2025-03-17 11:13:44,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:13:44,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 11:13:44,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1922 transitions. [2025-03-17 11:13:44,338 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8736363636363637 [2025-03-17 11:13:44,338 INFO L175 Difference]: Start difference. First operand has 201 places, 192 transitions, 451 flow. Second operand 10 states and 1922 transitions. [2025-03-17 11:13:44,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 198 transitions, 530 flow [2025-03-17 11:13:44,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 198 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 11:13:44,341 INFO L231 Difference]: Finished difference. Result has 211 places, 186 transitions, 439 flow [2025-03-17 11:13:44,341 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=439, PETRI_PLACES=211, PETRI_TRANSITIONS=186} [2025-03-17 11:13:44,343 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, 14 predicate places. [2025-03-17 11:13:44,343 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 186 transitions, 439 flow [2025-03-17 11:13:44,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 191.0) internal successors, (1337), 7 states have internal predecessors, (1337), 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) [2025-03-17 11:13:44,344 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:13:44,344 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] [2025-03-17 11:13:44,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 11:13:44,345 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-03-17 11:13:44,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:13:44,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1408416805, now seen corresponding path program 1 times [2025-03-17 11:13:44,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:13:44,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184649657] [2025-03-17 11:13:44,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:13:44,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:13:44,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-17 11:13:44,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-17 11:13:44,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:13:44,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:13:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 11:13:44,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:13:44,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184649657] [2025-03-17 11:13:44,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184649657] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:13:44,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:13:44,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:13:44,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777534710] [2025-03-17 11:13:44,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:13:44,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:13:44,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:13:44,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:13:44,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:13:44,771 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 220 [2025-03-17 11:13:44,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 186 transitions, 439 flow. Second operand has 6 states, 6 states have (on average 191.16666666666666) internal successors, (1147), 6 states have internal predecessors, (1147), 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) [2025-03-17 11:13:44,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:13:44,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 220 [2025-03-17 11:13:44,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:13:44,842 INFO L124 PetriNetUnfolderBase]: 31/389 cut-off events. [2025-03-17 11:13:44,842 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2025-03-17 11:13:44,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 389 events. 31/389 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1159 event pairs, 8 based on Foata normal form. 0/369 useless extension candidates. Maximal degree in co-relation 506. Up to 39 conditions per place. [2025-03-17 11:13:44,844 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 22 selfloop transitions, 5 changer transitions 0/193 dead transitions. [2025-03-17 11:13:44,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 193 transitions, 515 flow [2025-03-17 11:13:44,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:13:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:13:44,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1162 transitions. [2025-03-17 11:13:44,850 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8803030303030303 [2025-03-17 11:13:44,850 INFO L175 Difference]: Start difference. First operand has 211 places, 186 transitions, 439 flow. Second operand 6 states and 1162 transitions. [2025-03-17 11:13:44,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 193 transitions, 515 flow [2025-03-17 11:13:44,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 193 transitions, 471 flow, removed 7 selfloop flow, removed 13 redundant places. [2025-03-17 11:13:44,854 INFO L231 Difference]: Finished difference. Result has 194 places, 185 transitions, 403 flow [2025-03-17 11:13:44,855 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=194, PETRI_TRANSITIONS=185} [2025-03-17 11:13:44,856 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -3 predicate places. [2025-03-17 11:13:44,856 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 185 transitions, 403 flow [2025-03-17 11:13:44,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.16666666666666) internal successors, (1147), 6 states have internal predecessors, (1147), 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) [2025-03-17 11:13:44,857 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:13:44,857 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] [2025-03-17 11:13:44,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 11:13:44,857 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2025-03-17 11:13:44,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:13:44,858 INFO L85 PathProgramCache]: Analyzing trace with hash 431900697, now seen corresponding path program 1 times [2025-03-17 11:13:44,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:13:44,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204731185] [2025-03-17 11:13:44,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:13:44,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:13:44,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-17 11:13:44,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-17 11:13:44,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:13:44,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:13:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 11:13:45,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:13:45,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204731185] [2025-03-17 11:13:45,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204731185] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:13:45,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:13:45,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:13:45,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917068490] [2025-03-17 11:13:45,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:13:45,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:13:45,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:13:45,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:13:45,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:13:45,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 220 [2025-03-17 11:13:45,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 185 transitions, 403 flow. Second operand has 6 states, 6 states have (on average 191.33333333333334) internal successors, (1148), 6 states have internal predecessors, (1148), 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) [2025-03-17 11:13:45,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:13:45,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 220 [2025-03-17 11:13:45,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:13:45,360 INFO L124 PetriNetUnfolderBase]: 40/413 cut-off events. [2025-03-17 11:13:45,360 INFO L125 PetriNetUnfolderBase]: For 21/22 co-relation queries the response was YES. [2025-03-17 11:13:45,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 413 events. 40/413 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1421 event pairs, 10 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 504. Up to 43 conditions per place. [2025-03-17 11:13:45,362 INFO L140 encePairwiseOnDemand]: 214/220 looper letters, 0 selfloop transitions, 0 changer transitions 192/192 dead transitions. [2025-03-17 11:13:45,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 192 transitions, 475 flow [2025-03-17 11:13:45,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:13:45,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:13:45,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1162 transitions. [2025-03-17 11:13:45,366 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8803030303030303 [2025-03-17 11:13:45,366 INFO L175 Difference]: Start difference. First operand has 194 places, 185 transitions, 403 flow. Second operand 6 states and 1162 transitions. [2025-03-17 11:13:45,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 192 transitions, 475 flow [2025-03-17 11:13:45,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 192 transitions, 465 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 11:13:45,370 INFO L231 Difference]: Finished difference. Result has 193 places, 0 transitions, 0 flow [2025-03-17 11:13:45,370 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=193, PETRI_TRANSITIONS=0} [2025-03-17 11:13:45,371 INFO L279 CegarLoopForPetriNet]: 197 programPoint places, -4 predicate places. [2025-03-17 11:13:45,371 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 0 transitions, 0 flow [2025-03-17 11:13:45,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.33333333333334) internal successors, (1148), 6 states have internal predecessors, (1148), 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) [2025-03-17 11:13:45,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (17 of 18 remaining) [2025-03-17 11:13:45,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2025-03-17 11:13:45,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2025-03-17 11:13:45,374 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2025-03-17 11:13:45,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2025-03-17 11:13:45,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 11:13:45,376 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:13:45,380 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 11:13:45,380 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 11:13:45,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:13:45 BasicIcfg [2025-03-17 11:13:45,390 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 11:13:45,390 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 11:13:45,390 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 11:13:45,390 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 11:13:45,391 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:13:41" (3/4) ... [2025-03-17 11:13:45,392 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 11:13:45,394 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-17 11:13:45,395 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-17 11:13:45,398 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-03-17 11:13:45,399 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-17 11:13:45,399 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 11:13:45,399 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 11:13:45,463 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 11:13:45,463 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 11:13:45,463 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 11:13:45,465 INFO L158 Benchmark]: Toolchain (without parser) took 4436.68ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 122.5MB in the beginning and 120.4MB in the end (delta: 2.1MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2025-03-17 11:13:45,465 INFO L158 Benchmark]: CDTParser took 0.89ms. Allocated memory is still 201.3MB. Free memory is still 118.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:13:45,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.59ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 110.3MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 11:13:45,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.61ms. Allocated memory is still 167.8MB. Free memory was 110.3MB in the beginning and 108.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 11:13:45,466 INFO L158 Benchmark]: Boogie Preprocessor took 35.91ms. Allocated memory is still 167.8MB. Free memory was 108.4MB in the beginning and 107.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:13:45,466 INFO L158 Benchmark]: IcfgBuilder took 428.03ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 86.3MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 11:13:45,467 INFO L158 Benchmark]: TraceAbstraction took 3657.91ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 85.4MB in the beginning and 127.0MB in the end (delta: -41.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:13:45,467 INFO L158 Benchmark]: Witness Printer took 73.18ms. Allocated memory is still 201.3MB. Free memory was 127.0MB in the beginning and 120.4MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 11:13:45,468 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89ms. Allocated memory is still 201.3MB. Free memory is still 118.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.59ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 110.3MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.61ms. Allocated memory is still 167.8MB. Free memory was 110.3MB in the beginning and 108.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.91ms. Allocated memory is still 167.8MB. Free memory was 108.4MB in the beginning and 107.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 428.03ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 86.3MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3657.91ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 85.4MB in the beginning and 127.0MB in the end (delta: -41.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 73.18ms. Allocated memory is still 201.3MB. Free memory was 127.0MB in the beginning and 120.4MB in the end (delta: 6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: 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 5 procedures, 315 locations, 334 edges, 18 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: 3.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 681 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 445 mSDsluCounter, 420 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 387 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1093 IncrementalHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 33 mSDtfsCounter, 1093 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=451occurred in iteration=6, InterpolantAutomatonStates: 50, 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, 1.5s InterpolantComputationTime, 544 NumberOfCodeBlocks, 544 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 535 ConstructedInterpolants, 0 QuantifiedInterpolants, 1092 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 4/4 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 11:13:45,484 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