./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version f8ab0bd5 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-mult-4.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 b81cf2d80bc77dedaac253250be737ceaa09f6e691f026864fe6fd5cb48c2489 --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:26:09,548 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:26:09,597 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:26:09,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:26:09,601 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:26:09,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:26:09,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:26:09,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:26:09,625 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:26:09,625 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:26:09,626 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:26:09,626 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:26:09,626 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:26:09,626 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:26:09,626 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:26:09,627 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:26:09,627 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:26:09,627 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:26:09,627 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:26:09,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:26:09,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:26:09,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:26:09,628 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:26:09,628 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:26:09,628 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:26:09,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:26:09,628 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:26:09,628 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:26:09,628 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:26:09,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:26:09,628 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:26:09,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:26:09,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:26:09,628 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:26:09,628 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:26:09,629 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:26:09,629 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:26:09,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:26:09,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:26:09,629 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:26:09,629 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:26:09,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:26:09,629 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 -> b81cf2d80bc77dedaac253250be737ceaa09f6e691f026864fe6fd5cb48c2489 [2025-03-13 22:26:09,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:26:09,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:26:09,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:26:09,848 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:26:09,848 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:26:09,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c [2025-03-13 22:26:10,970 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be4db6ee5/436ef15457094fa8a8cedf2805471dc0/FLAG2e150024a [2025-03-13 22:26:11,180 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:26:11,181 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-mult-4.wvr.c [2025-03-13 22:26:11,188 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be4db6ee5/436ef15457094fa8a8cedf2805471dc0/FLAG2e150024a [2025-03-13 22:26:11,199 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be4db6ee5/436ef15457094fa8a8cedf2805471dc0 [2025-03-13 22:26:11,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:26:11,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:26:11,203 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:26:11,203 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:26:11,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:26:11,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,208 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c80abce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11, skipping insertion in model container [2025-03-13 22:26:11,208 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,219 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:26:11,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:26:11,368 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:26:11,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:26:11,403 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:26:11,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11 WrapperNode [2025-03-13 22:26:11,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:26:11,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:26:11,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:26:11,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:26:11,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,432 INFO L138 Inliner]: procedures = 22, calls = 23, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 134 [2025-03-13 22:26:11,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:26:11,435 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:26:11,435 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:26:11,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:26:11,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,451 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:26:11,460 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:26:11,460 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:26:11,460 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:26:11,465 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11" (1/1) ... [2025-03-13 22:26:11,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:26:11,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:26:11,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-13 22:26:11,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-13 22:26:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:26:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-13 22:26:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-13 22:26:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-13 22:26:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-13 22:26:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-13 22:26:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-13 22:26:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-03-13 22:26:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-03-13 22:26:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:26:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-13 22:26:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-13 22:26:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:26:11,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:26:11,516 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:26:11,600 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:26:11,602 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:26:11,819 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:26:11,820 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:26:11,820 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:26:11,895 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-13 22:26:11,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:26:11 BoogieIcfgContainer [2025-03-13 22:26:11,895 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-13 22:26:11,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-13 22:26:11,900 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-13 22:26:11,903 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-13 22:26:11,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.03 10:26:11" (1/3) ... [2025-03-13 22:26:11,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f8ef5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:26:11, skipping insertion in model container [2025-03-13 22:26:11,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:26:11" (2/3) ... [2025-03-13 22:26:11,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79f8ef5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.03 10:26:11, skipping insertion in model container [2025-03-13 22:26:11,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:26:11" (3/3) ... [2025-03-13 22:26:11,905 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2025-03-13 22:26:11,916 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-13 22:26:11,917 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-mult-4.wvr.c that has 5 procedures, 158 locations, 1 initial locations, 4 loop locations, and 22 error locations. [2025-03-13 22:26:11,917 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-13 22:26:11,975 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-13 22:26:12,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 167 transitions, 362 flow [2025-03-13 22:26:12,053 INFO L124 PetriNetUnfolderBase]: 10/163 cut-off events. [2025-03-13 22:26:12,055 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-13 22:26:12,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 163 events. 10/163 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 246 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 124. Up to 2 conditions per place. [2025-03-13 22:26:12,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 167 transitions, 362 flow [2025-03-13 22:26:12,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 146 transitions, 316 flow [2025-03-13 22:26:12,073 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-13 22:26:12,084 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;@54fd1344, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-13 22:26:12,084 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2025-03-13 22:26:12,088 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-13 22:26:12,088 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2025-03-13 22:26:12,088 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-13 22:26:12,088 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:26:12,089 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] [2025-03-13 22:26:12,089 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-03-13 22:26:12,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:26:12,096 INFO L85 PathProgramCache]: Analyzing trace with hash 962925495, now seen corresponding path program 1 times [2025-03-13 22:26:12,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:26:12,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118257178] [2025-03-13 22:26:12,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:26:12,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:26:12,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-13 22:26:12,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-13 22:26:12,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:26:12,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:26:12,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:26:12,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:26:12,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118257178] [2025-03-13 22:26:12,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118257178] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:26:12,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:26:12,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:26:12,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801120629] [2025-03-13 22:26:12,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:26:12,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:26:12,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:26:12,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:26:12,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:26:12,320 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 167 [2025-03-13 22:26:12,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 146 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:26:12,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:26:12,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 167 [2025-03-13 22:26:12,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:26:12,571 INFO L124 PetriNetUnfolderBase]: 399/1355 cut-off events. [2025-03-13 22:26:12,572 INFO L125 PetriNetUnfolderBase]: For 158/158 co-relation queries the response was YES. [2025-03-13 22:26:12,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2041 conditions, 1355 events. 399/1355 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 9491 event pairs, 272 based on Foata normal form. 1/1174 useless extension candidates. Maximal degree in co-relation 1847. Up to 559 conditions per place. [2025-03-13 22:26:12,589 INFO L140 encePairwiseOnDemand]: 145/167 looper letters, 19 selfloop transitions, 2 changer transitions 1/126 dead transitions. [2025-03-13 22:26:12,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 126 transitions, 318 flow [2025-03-13 22:26:12,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:26:12,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:26:12,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2025-03-13 22:26:12,604 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8183632734530938 [2025-03-13 22:26:12,605 INFO L175 Difference]: Start difference. First operand has 150 places, 146 transitions, 316 flow. Second operand 3 states and 410 transitions. [2025-03-13 22:26:12,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 126 transitions, 318 flow [2025-03-13 22:26:12,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 126 transitions, 302 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-03-13 22:26:12,616 INFO L231 Difference]: Finished difference. Result has 129 places, 125 transitions, 262 flow [2025-03-13 22:26:12,619 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=129, PETRI_TRANSITIONS=125} [2025-03-13 22:26:12,623 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, -21 predicate places. [2025-03-13 22:26:12,624 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 125 transitions, 262 flow [2025-03-13 22:26:12,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:26:12,625 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:26:12,625 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] [2025-03-13 22:26:12,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-13 22:26:12,626 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-03-13 22:26:12,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:26:12,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1711841574, now seen corresponding path program 1 times [2025-03-13 22:26:12,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:26:12,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102433694] [2025-03-13 22:26:12,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:26:12,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:26:12,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-13 22:26:12,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-13 22:26:12,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:26:12,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:26:12,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:26:12,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:26:12,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102433694] [2025-03-13 22:26:12,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102433694] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:26:12,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:26:12,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:26:12,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103459576] [2025-03-13 22:26:12,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:26:12,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:26:12,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:26:12,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:26:12,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:26:12,674 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 167 [2025-03-13 22:26:12,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 125 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:26:12,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:26:12,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 167 [2025-03-13 22:26:12,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:26:12,765 INFO L124 PetriNetUnfolderBase]: 101/475 cut-off events. [2025-03-13 22:26:12,765 INFO L125 PetriNetUnfolderBase]: For 17/19 co-relation queries the response was YES. [2025-03-13 22:26:12,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 475 events. 101/475 cut-off events. For 17/19 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2365 event pairs, 51 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 611. Up to 143 conditions per place. [2025-03-13 22:26:12,770 INFO L140 encePairwiseOnDemand]: 164/167 looper letters, 16 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2025-03-13 22:26:12,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 124 transitions, 296 flow [2025-03-13 22:26:12,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:26:12,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:26:12,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2025-03-13 22:26:12,772 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7924151696606786 [2025-03-13 22:26:12,772 INFO L175 Difference]: Start difference. First operand has 129 places, 125 transitions, 262 flow. Second operand 3 states and 397 transitions. [2025-03-13 22:26:12,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 124 transitions, 296 flow [2025-03-13 22:26:12,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 124 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:26:12,775 INFO L231 Difference]: Finished difference. Result has 127 places, 124 transitions, 260 flow [2025-03-13 22:26:12,776 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=127, PETRI_TRANSITIONS=124} [2025-03-13 22:26:12,776 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, -23 predicate places. [2025-03-13 22:26:12,777 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 124 transitions, 260 flow [2025-03-13 22:26:12,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:26:12,777 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:26:12,777 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] [2025-03-13 22:26:12,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-13 22:26:12,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-03-13 22:26:12,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:26:12,778 INFO L85 PathProgramCache]: Analyzing trace with hash 28567164, now seen corresponding path program 1 times [2025-03-13 22:26:12,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:26:12,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571590522] [2025-03-13 22:26:12,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:26:12,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:26:12,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-13 22:26:12,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-13 22:26:12,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:26:12,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:26:12,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:26:12,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:26:12,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571590522] [2025-03-13 22:26:12,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571590522] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:26:12,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:26:12,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:26:12,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502020216] [2025-03-13 22:26:12,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:26:12,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:26:12,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:26:12,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:26:12,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:26:12,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 167 [2025-03-13 22:26:12,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 124 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:26:12,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:26:12,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 167 [2025-03-13 22:26:12,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:26:12,897 INFO L124 PetriNetUnfolderBase]: 101/474 cut-off events. [2025-03-13 22:26:12,898 INFO L125 PetriNetUnfolderBase]: For 18/20 co-relation queries the response was YES. [2025-03-13 22:26:12,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 474 events. 101/474 cut-off events. For 18/20 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2364 event pairs, 51 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 600. Up to 140 conditions per place. [2025-03-13 22:26:12,904 INFO L140 encePairwiseOnDemand]: 165/167 looper letters, 14 selfloop transitions, 1 changer transitions 0/123 dead transitions. [2025-03-13 22:26:12,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 123 transitions, 288 flow [2025-03-13 22:26:12,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:26:12,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:26:12,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2025-03-13 22:26:12,906 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.810379241516966 [2025-03-13 22:26:12,906 INFO L175 Difference]: Start difference. First operand has 127 places, 124 transitions, 260 flow. Second operand 3 states and 406 transitions. [2025-03-13 22:26:12,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 123 transitions, 288 flow [2025-03-13 22:26:12,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 123 transitions, 284 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-13 22:26:12,909 INFO L231 Difference]: Finished difference. Result has 126 places, 123 transitions, 256 flow [2025-03-13 22:26:12,910 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=126, PETRI_TRANSITIONS=123} [2025-03-13 22:26:12,910 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, -24 predicate places. [2025-03-13 22:26:12,911 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 123 transitions, 256 flow [2025-03-13 22:26:12,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:26:12,911 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:26:12,911 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] [2025-03-13 22:26:12,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-13 22:26:12,911 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-03-13 22:26:12,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:26:12,912 INFO L85 PathProgramCache]: Analyzing trace with hash -275807485, now seen corresponding path program 1 times [2025-03-13 22:26:12,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:26:12,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367724760] [2025-03-13 22:26:12,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:26:12,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:26:12,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-13 22:26:12,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-13 22:26:12,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:26:12,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:26:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:26:12,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:26:12,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367724760] [2025-03-13 22:26:12,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367724760] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:26:12,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:26:12,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:26:12,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811091196] [2025-03-13 22:26:12,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:26:12,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:26:12,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:26:12,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:26:12,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:26:13,008 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 167 [2025-03-13 22:26:13,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 123 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:26:13,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:26:13,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 167 [2025-03-13 22:26:13,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:26:13,290 INFO L124 PetriNetUnfolderBase]: 1225/3093 cut-off events. [2025-03-13 22:26:13,290 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2025-03-13 22:26:13,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4833 conditions, 3093 events. 1225/3093 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 24684 event pairs, 672 based on Foata normal form. 0/2853 useless extension candidates. Maximal degree in co-relation 4798. Up to 1646 conditions per place. [2025-03-13 22:26:13,307 INFO L140 encePairwiseOnDemand]: 159/167 looper letters, 24 selfloop transitions, 4 changer transitions 0/126 dead transitions. [2025-03-13 22:26:13,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 126 transitions, 321 flow [2025-03-13 22:26:13,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:26:13,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:26:13,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2025-03-13 22:26:13,309 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7884231536926147 [2025-03-13 22:26:13,309 INFO L175 Difference]: Start difference. First operand has 126 places, 123 transitions, 256 flow. Second operand 3 states and 395 transitions. [2025-03-13 22:26:13,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 126 transitions, 321 flow [2025-03-13 22:26:13,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 126 transitions, 320 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-13 22:26:13,312 INFO L231 Difference]: Finished difference. Result has 124 places, 123 transitions, 275 flow [2025-03-13 22:26:13,312 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=124, PETRI_TRANSITIONS=123} [2025-03-13 22:26:13,313 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, -26 predicate places. [2025-03-13 22:26:13,314 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 123 transitions, 275 flow [2025-03-13 22:26:13,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:26:13,314 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-13 22:26:13,314 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-13 22:26:13,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-13 22:26:13,314 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err0ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2025-03-13 22:26:13,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-13 22:26:13,315 INFO L85 PathProgramCache]: Analyzing trace with hash -738071930, now seen corresponding path program 1 times [2025-03-13 22:26:13,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-13 22:26:13,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758360602] [2025-03-13 22:26:13,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-13 22:26:13,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-13 22:26:13,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-13 22:26:13,349 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-13 22:26:13,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-13 22:26:13,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-13 22:26:13,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-13 22:26:13,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-13 22:26:13,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758360602] [2025-03-13 22:26:13,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758360602] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-13 22:26:13,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-13 22:26:13,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-13 22:26:13,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058286279] [2025-03-13 22:26:13,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-13 22:26:13,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-13 22:26:13,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-13 22:26:13,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-13 22:26:13,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-13 22:26:13,428 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 167 [2025-03-13 22:26:13,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 123 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:26:13,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-13 22:26:13,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 167 [2025-03-13 22:26:13,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-13 22:26:13,479 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([510] L62-1-->L62-6: Formula: (= |v_#race~N~0_9| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_9|} AuxVars[] AssignedVars[#race~N~0][84], [181#(= |#race~c~0| 0), 107#L51-6true, 128#L93-1true, 31#L62-6true, Black: 182#true, 186#true, 184#(= |#race~N~0| 0), 81#L41-6true]) [2025-03-13 22:26:13,480 INFO L294 olderBase$Statistics]: this new event has 76 ancestors and is cut-off event [2025-03-13 22:26:13,480 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is cut-off event [2025-03-13 22:26:13,480 INFO L297 olderBase$Statistics]: existing Event has 62 ancestors and is cut-off event [2025-03-13 22:26:13,480 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is cut-off event [2025-03-13 22:26:13,513 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] L72-1-->L72-6: Formula: (= |v_#race~N~0_15| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_15|} AuxVars[] AssignedVars[#race~N~0][106], [38#L72-6true, 113#thread3ENTRYtrue, 181#(= |#race~c~0| 0), 78#L94-1true, 107#L51-6true, Black: 182#true, 186#true, 184#(= |#race~N~0| 0), 81#L41-6true]) [2025-03-13 22:26:13,513 INFO L294 olderBase$Statistics]: this new event has 82 ancestors and is cut-off event [2025-03-13 22:26:13,514 INFO L297 olderBase$Statistics]: existing Event has 75 ancestors and is cut-off event [2025-03-13 22:26:13,514 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2025-03-13 22:26:13,514 INFO L297 olderBase$Statistics]: existing Event has 75 ancestors and is cut-off event [2025-03-13 22:26:13,517 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] L72-1-->L72-6: Formula: (= |v_#race~N~0_15| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_15|} AuxVars[] AssignedVars[#race~N~0][106], [38#L72-6true, 181#(= |#race~c~0| 0), 78#L94-1true, 31#L62-6true, Black: 182#true, 186#true, 184#(= |#race~N~0| 0), 159#thread2ENTRYtrue, 81#L41-6true]) [2025-03-13 22:26:13,518 INFO L294 olderBase$Statistics]: this new event has 82 ancestors and is cut-off event [2025-03-13 22:26:13,518 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2025-03-13 22:26:13,518 INFO L297 olderBase$Statistics]: existing Event has 75 ancestors and is cut-off event [2025-03-13 22:26:13,519 INFO L297 olderBase$Statistics]: existing Event has 75 ancestors and is cut-off event [2025-03-13 22:26:13,519 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] L72-1-->L72-6: Formula: (= |v_#race~N~0_15| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_15|} AuxVars[] AssignedVars[#race~N~0][106], [38#L72-6true, 181#(= |#race~c~0| 0), 78#L94-1true, 107#L51-6true, Black: 182#true, 31#L62-6true, 186#true, 71#thread1ENTRYtrue, 184#(= |#race~N~0| 0)]) [2025-03-13 22:26:13,519 INFO L294 olderBase$Statistics]: this new event has 82 ancestors and is cut-off event [2025-03-13 22:26:13,519 INFO L297 olderBase$Statistics]: existing Event has 68 ancestors and is cut-off event [2025-03-13 22:26:13,520 INFO L297 olderBase$Statistics]: existing Event has 75 ancestors and is cut-off event [2025-03-13 22:26:13,522 INFO L297 olderBase$Statistics]: existing Event has 75 ancestors and is cut-off event [2025-03-13 22:26:13,527 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([528] L72-1-->L72-6: Formula: (= |v_#race~N~0_15| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_15|} AuxVars[] AssignedVars[#race~N~0][106], [38#L72-6true, 181#(= |#race~c~0| 0), 78#L94-1true, 107#L51-6true, 31#L62-6true, Black: 182#true, 186#true, 184#(= |#race~N~0| 0), 81#L41-6true]) [2025-03-13 22:26:13,528 INFO L294 olderBase$Statistics]: this new event has 85 ancestors and is cut-off event [2025-03-13 22:26:13,528 INFO L297 olderBase$Statistics]: existing Event has 71 ancestors and is cut-off event [2025-03-13 22:26:13,528 INFO L297 olderBase$Statistics]: existing Event has 78 ancestors and is cut-off event [2025-03-13 22:26:13,528 INFO L297 olderBase$Statistics]: existing Event has 78 ancestors and is cut-off event [2025-03-13 22:26:13,541 INFO L124 PetriNetUnfolderBase]: 276/960 cut-off events. [2025-03-13 22:26:13,542 INFO L125 PetriNetUnfolderBase]: For 24/29 co-relation queries the response was YES. [2025-03-13 22:26:13,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 960 events. 276/960 cut-off events. For 24/29 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6113 event pairs, 119 based on Foata normal form. 1/848 useless extension candidates. Maximal degree in co-relation 1369. Up to 236 conditions per place. [2025-03-13 22:26:13,546 INFO L140 encePairwiseOnDemand]: 165/167 looper letters, 0 selfloop transitions, 0 changer transitions 122/122 dead transitions. [2025-03-13 22:26:13,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 122 transitions, 299 flow [2025-03-13 22:26:13,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-13 22:26:13,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-13 22:26:13,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 407 transitions. [2025-03-13 22:26:13,547 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.812375249500998 [2025-03-13 22:26:13,547 INFO L175 Difference]: Start difference. First operand has 124 places, 123 transitions, 275 flow. Second operand 3 states and 407 transitions. [2025-03-13 22:26:13,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 122 transitions, 299 flow [2025-03-13 22:26:13,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 122 transitions, 299 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-13 22:26:13,548 INFO L231 Difference]: Finished difference. Result has 125 places, 0 transitions, 0 flow [2025-03-13 22:26:13,549 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=125, PETRI_TRANSITIONS=0} [2025-03-13 22:26:13,550 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, -25 predicate places. [2025-03-13 22:26:13,551 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 0 transitions, 0 flow [2025-03-13 22:26:13,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-13 22:26:13,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (43 of 44 remaining) [2025-03-13 22:26:13,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2025-03-13 22:26:13,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2025-03-13 22:26:13,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2025-03-13 22:26:13,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2025-03-13 22:26:13,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 44 remaining) [2025-03-13 22:26:13,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2025-03-13 22:26:13,555 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2025-03-13 22:26:13,556 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2025-03-13 22:26:13,556 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2025-03-13 22:26:13,556 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2025-03-13 22:26:13,556 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2025-03-13 22:26:13,556 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2025-03-13 22:26:13,556 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2025-03-13 22:26:13,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-13 22:26:13,556 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-13 22:26:13,561 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-13 22:26:13,562 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-13 22:26:13,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.03 10:26:13 BasicIcfg [2025-03-13 22:26:13,568 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-13 22:26:13,569 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-13 22:26:13,569 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-13 22:26:13,569 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-13 22:26:13,569 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.03 10:26:11" (3/4) ... [2025-03-13 22:26:13,570 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-13 22:26:13,572 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-13 22:26:13,572 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-13 22:26:13,572 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-13 22:26:13,572 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread4 [2025-03-13 22:26:13,577 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-03-13 22:26:13,577 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-13 22:26:13,577 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-13 22:26:13,577 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-13 22:26:13,629 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-13 22:26:13,630 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-13 22:26:13,630 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-13 22:26:13,630 INFO L158 Benchmark]: Toolchain (without parser) took 2428.63ms. Allocated memory was 142.6MB in the beginning and 243.3MB in the end (delta: 100.7MB). Free memory was 112.5MB in the beginning and 173.2MB in the end (delta: -60.7MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2025-03-13 22:26:13,631 INFO L158 Benchmark]: CDTParser took 0.88ms. Allocated memory is still 201.3MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:26:13,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 201.43ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 100.4MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:26:13,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.03ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 98.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:26:13,631 INFO L158 Benchmark]: Boogie Preprocessor took 24.09ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 97.9MB in the end (delta: 899.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:26:13,631 INFO L158 Benchmark]: IcfgBuilder took 435.13ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 70.5MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-13 22:26:13,632 INFO L158 Benchmark]: TraceAbstraction took 1668.54ms. Allocated memory was 142.6MB in the beginning and 243.3MB in the end (delta: 100.7MB). Free memory was 69.7MB in the beginning and 179.3MB in the end (delta: -109.7MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2025-03-13 22:26:13,632 INFO L158 Benchmark]: Witness Printer took 61.22ms. Allocated memory is still 243.3MB. Free memory was 178.1MB in the beginning and 173.2MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:26:13,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88ms. Allocated memory is still 201.3MB. Free memory is still 124.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 201.43ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 100.4MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.03ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 98.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.09ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 97.9MB in the end (delta: 899.2kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 435.13ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 70.5MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1668.54ms. Allocated memory was 142.6MB in the beginning and 243.3MB in the end (delta: 100.7MB). Free memory was 69.7MB in the beginning and 179.3MB in the end (delta: -109.7MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * Witness Printer took 61.22ms. Allocated memory is still 243.3MB. Free memory was 178.1MB in the beginning and 173.2MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: 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 9 procedures, 232 locations, 44 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 95 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 168 IncrementalHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 33 mSDtfsCounter, 168 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=316occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 227 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-13 22:26:13,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE