./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-divine/barrier_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-divine/barrier_2t.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:43:17,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:43:17,247 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:43:17,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:43:17,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:43:17,277 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:43:17,277 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:43:17,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:43:17,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:43:17,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:43:17,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:43:17,278 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:43:17,278 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:43:17,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:43:17,278 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:43:17,278 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:43:17,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:43:17,278 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:43:17,278 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:43:17,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:43:17,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:43:17,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:43:17,278 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:43:17,279 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:43:17,279 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:43:17,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:43:17,281 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:43:17,281 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:43:17,282 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:43:17,282 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:43:17,282 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 -> f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 [2025-03-04 06:43:17,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:43:17,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:43:17,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:43:17,518 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:43:17,518 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:43:17,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/barrier_2t.i [2025-03-04 06:43:18,642 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cde60a9d/4fb72b4e0525466892894cd0d1320030/FLAGc4a00e850 [2025-03-04 06:43:18,898 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:43:18,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/barrier_2t.i [2025-03-04 06:43:18,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cde60a9d/4fb72b4e0525466892894cd0d1320030/FLAGc4a00e850 [2025-03-04 06:43:19,208 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cde60a9d/4fb72b4e0525466892894cd0d1320030 [2025-03-04 06:43:19,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:43:19,210 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:43:19,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:43:19,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:43:19,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:43:19,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eec5165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19, skipping insertion in model container [2025-03-04 06:43:19,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,241 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:43:19,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:43:19,550 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:43:19,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:43:19,637 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:43:19,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19 WrapperNode [2025-03-04 06:43:19,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:43:19,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:43:19,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:43:19,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:43:19,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,691 INFO L138 Inliner]: procedures = 174, calls = 94, calls flagged for inlining = 19, calls inlined = 31, statements flattened = 1010 [2025-03-04 06:43:19,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:43:19,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:43:19,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:43:19,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:43:19,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,715 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,759 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,771 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,779 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:43:19,783 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:43:19,784 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:43:19,784 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:43:19,784 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19" (1/1) ... [2025-03-04 06:43:19,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:43:19,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:43:19,819 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) [2025-03-04 06:43:19,822 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 [2025-03-04 06:43:19,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 06:43:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 06:43:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 06:43:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2025-03-04 06:43:19,841 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2025-03-04 06:43:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:43:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-04 06:43:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 06:43:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-04 06:43:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 06:43:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:43:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 06:43:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:43:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:43:19,843 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 06:43:19,983 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:43:19,984 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:43:21,188 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:43:21,189 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:43:21,245 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:43:21,246 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:43:21,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:43:21 BoogieIcfgContainer [2025-03-04 06:43:21,246 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:43:21,247 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:43:21,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:43:21,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:43:21,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:43:19" (1/3) ... [2025-03-04 06:43:21,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e1d1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:43:21, skipping insertion in model container [2025-03-04 06:43:21,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:43:19" (2/3) ... [2025-03-04 06:43:21,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e1d1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:43:21, skipping insertion in model container [2025-03-04 06:43:21,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:43:21" (3/3) ... [2025-03-04 06:43:21,253 INFO L128 eAbstractionObserver]: Analyzing ICFG barrier_2t.i [2025-03-04 06:43:21,264 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:43:21,265 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG barrier_2t.i that has 2 procedures, 1112 locations, 1 initial locations, 20 loop locations, and 99 error locations. [2025-03-04 06:43:21,265 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:43:21,436 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 06:43:21,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1193 transitions, 2393 flow [2025-03-04 06:43:22,008 INFO L124 PetriNetUnfolderBase]: 122/1764 cut-off events. [2025-03-04 06:43:22,010 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:43:22,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1769 conditions, 1764 events. 122/1764 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7109 event pairs, 0 based on Foata normal form. 0/1492 useless extension candidates. Maximal degree in co-relation 1073. Up to 4 conditions per place. [2025-03-04 06:43:22,049 INFO L82 GeneralOperation]: Start removeDead. Operand has 1115 places, 1193 transitions, 2393 flow [2025-03-04 06:43:22,075 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1115 places, 1193 transitions, 2393 flow [2025-03-04 06:43:22,081 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:43:22,088 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;@49da0f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:43:22,088 INFO L334 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2025-03-04 06:43:22,097 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:43:22,097 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2025-03-04 06:43:22,097 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:43:22,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:22,099 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:43:22,099 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2025-03-04 06:43:22,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:22,104 INFO L85 PathProgramCache]: Analyzing trace with hash 917865669, now seen corresponding path program 1 times [2025-03-04 06:43:22,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:22,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756218731] [2025-03-04 06:43:22,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:22,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:22,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-04 06:43:22,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-04 06:43:22,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:22,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:22,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:22,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:22,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756218731] [2025-03-04 06:43:22,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756218731] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:22,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:22,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:22,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966059216] [2025-03-04 06:43:22,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:22,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:22,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:22,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:22,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:24,225 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 857 out of 1193 [2025-03-04 06:43:24,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1115 places, 1193 transitions, 2393 flow. Second operand has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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) [2025-03-04 06:43:24,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:24,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 857 of 1193 [2025-03-04 06:43:24,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:36,885 INFO L124 PetriNetUnfolderBase]: 18617/86558 cut-off events. [2025-03-04 06:43:36,886 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-04 06:43:37,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119856 conditions, 86558 events. 18617/86558 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 1059213 event pairs, 16093 based on Foata normal form. 6971/82956 useless extension candidates. Maximal degree in co-relation 119043. Up to 33288 conditions per place. [2025-03-04 06:43:37,265 INFO L140 encePairwiseOnDemand]: 1133/1193 looper letters, 276 selfloop transitions, 5 changer transitions 3/1115 dead transitions. [2025-03-04 06:43:37,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1096 places, 1115 transitions, 2799 flow [2025-03-04 06:43:37,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:43:37,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:43:37,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5478 transitions. [2025-03-04 06:43:37,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7652975691533948 [2025-03-04 06:43:37,296 INFO L175 Difference]: Start difference. First operand has 1115 places, 1193 transitions, 2393 flow. Second operand 6 states and 5478 transitions. [2025-03-04 06:43:37,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1096 places, 1115 transitions, 2799 flow [2025-03-04 06:43:37,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1096 places, 1115 transitions, 2799 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:43:37,326 INFO L231 Difference]: Finished difference. Result has 1096 places, 1112 transitions, 2241 flow [2025-03-04 06:43:37,330 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1193, PETRI_DIFFERENCE_MINUEND_FLOW=2237, PETRI_DIFFERENCE_MINUEND_PLACES=1091, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2241, PETRI_PLACES=1096, PETRI_TRANSITIONS=1112} [2025-03-04 06:43:37,334 INFO L279 CegarLoopForPetriNet]: 1115 programPoint places, -19 predicate places. [2025-03-04 06:43:37,335 INFO L471 AbstractCegarLoop]: Abstraction has has 1096 places, 1112 transitions, 2241 flow [2025-03-04 06:43:37,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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) [2025-03-04 06:43:37,338 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:37,338 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] [2025-03-04 06:43:37,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:43:37,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2025-03-04 06:43:37,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:37,340 INFO L85 PathProgramCache]: Analyzing trace with hash 26150162, now seen corresponding path program 1 times [2025-03-04 06:43:37,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:37,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517656981] [2025-03-04 06:43:37,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:37,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:37,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 06:43:37,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 06:43:37,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:37,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:37,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:37,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:37,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517656981] [2025-03-04 06:43:37,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517656981] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:37,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:37,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 06:43:37,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201167564] [2025-03-04 06:43:37,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:37,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:43:37,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:37,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:43:37,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:43:37,638 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1103 out of 1193 [2025-03-04 06:43:37,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1096 places, 1112 transitions, 2241 flow. Second operand has 3 states, 3 states have (on average 1104.3333333333333) internal successors, (3313), 3 states have internal predecessors, (3313), 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) [2025-03-04 06:43:37,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:37,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1103 of 1193 [2025-03-04 06:43:37,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:39,145 INFO L124 PetriNetUnfolderBase]: 563/9912 cut-off events. [2025-03-04 06:43:39,145 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-04 06:43:39,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10537 conditions, 9912 events. 563/9912 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 90676 event pairs, 210 based on Foata normal form. 1/8500 useless extension candidates. Maximal degree in co-relation 10453. Up to 608 conditions per place. [2025-03-04 06:43:39,194 INFO L140 encePairwiseOnDemand]: 1190/1193 looper letters, 35 selfloop transitions, 2 changer transitions 0/1113 dead transitions. [2025-03-04 06:43:39,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1095 places, 1113 transitions, 2317 flow [2025-03-04 06:43:39,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:43:39,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:43:39,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3347 transitions. [2025-03-04 06:43:39,200 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9351774238614138 [2025-03-04 06:43:39,200 INFO L175 Difference]: Start difference. First operand has 1096 places, 1112 transitions, 2241 flow. Second operand 3 states and 3347 transitions. [2025-03-04 06:43:39,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1095 places, 1113 transitions, 2317 flow [2025-03-04 06:43:39,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1090 places, 1113 transitions, 2307 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:43:39,214 INFO L231 Difference]: Finished difference. Result has 1091 places, 1113 transitions, 2243 flow [2025-03-04 06:43:39,215 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1193, PETRI_DIFFERENCE_MINUEND_FLOW=2231, PETRI_DIFFERENCE_MINUEND_PLACES=1088, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2243, PETRI_PLACES=1091, PETRI_TRANSITIONS=1113} [2025-03-04 06:43:39,216 INFO L279 CegarLoopForPetriNet]: 1115 programPoint places, -24 predicate places. [2025-03-04 06:43:39,216 INFO L471 AbstractCegarLoop]: Abstraction has has 1091 places, 1113 transitions, 2243 flow [2025-03-04 06:43:39,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1104.3333333333333) internal successors, (3313), 3 states have internal predecessors, (3313), 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) [2025-03-04 06:43:39,218 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:39,218 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] [2025-03-04 06:43:39,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:43:39,218 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2025-03-04 06:43:39,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:39,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1992597082, now seen corresponding path program 1 times [2025-03-04 06:43:39,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:39,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126159434] [2025-03-04 06:43:39,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:39,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:39,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 06:43:39,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 06:43:39,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:39,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:39,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 06:43:39,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:39,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126159434] [2025-03-04 06:43:39,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126159434] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:39,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:39,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:39,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356382349] [2025-03-04 06:43:39,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:39,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:39,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:39,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:39,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:40,659 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 857 out of 1193 [2025-03-04 06:43:40,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1091 places, 1113 transitions, 2243 flow. Second operand has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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) [2025-03-04 06:43:40,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:40,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 857 of 1193 [2025-03-04 06:43:40,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:43:53,095 INFO L124 PetriNetUnfolderBase]: 18617/86582 cut-off events. [2025-03-04 06:43:53,095 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2025-03-04 06:43:53,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119895 conditions, 86582 events. 18617/86582 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 1059206 event pairs, 16093 based on Foata normal form. 0/76011 useless extension candidates. Maximal degree in co-relation 119816. Up to 33291 conditions per place. [2025-03-04 06:43:53,437 INFO L140 encePairwiseOnDemand]: 1187/1193 looper letters, 277 selfloop transitions, 5 changer transitions 0/1112 dead transitions. [2025-03-04 06:43:53,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1095 places, 1112 transitions, 2805 flow [2025-03-04 06:43:53,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:43:53,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:43:53,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5424 transitions. [2025-03-04 06:43:53,448 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.757753562447611 [2025-03-04 06:43:53,448 INFO L175 Difference]: Start difference. First operand has 1091 places, 1113 transitions, 2243 flow. Second operand 6 states and 5424 transitions. [2025-03-04 06:43:53,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1095 places, 1112 transitions, 2805 flow [2025-03-04 06:43:53,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1094 places, 1112 transitions, 2803 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 06:43:53,463 INFO L231 Difference]: Finished difference. Result has 1094 places, 1112 transitions, 2249 flow [2025-03-04 06:43:53,465 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1193, PETRI_DIFFERENCE_MINUEND_FLOW=2239, PETRI_DIFFERENCE_MINUEND_PLACES=1089, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2249, PETRI_PLACES=1094, PETRI_TRANSITIONS=1112} [2025-03-04 06:43:53,466 INFO L279 CegarLoopForPetriNet]: 1115 programPoint places, -21 predicate places. [2025-03-04 06:43:53,466 INFO L471 AbstractCegarLoop]: Abstraction has has 1094 places, 1112 transitions, 2249 flow [2025-03-04 06:43:53,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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) [2025-03-04 06:43:53,468 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:43:53,469 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] [2025-03-04 06:43:53,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:43:53,469 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2025-03-04 06:43:53,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:43:53,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1792573451, now seen corresponding path program 1 times [2025-03-04 06:43:53,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:43:53,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955788114] [2025-03-04 06:43:53,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:43:53,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:43:53,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-04 06:43:53,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-04 06:43:53,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:43:53,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:43:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 06:43:53,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:43:53,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955788114] [2025-03-04 06:43:53,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955788114] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:43:53,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:43:53,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:43:53,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378454006] [2025-03-04 06:43:53,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:43:53,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:43:53,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:43:53,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:43:53,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:43:55,453 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 857 out of 1193 [2025-03-04 06:43:55,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1094 places, 1112 transitions, 2249 flow. Second operand has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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) [2025-03-04 06:43:55,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:43:55,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 857 of 1193 [2025-03-04 06:43:55,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:07,444 INFO L124 PetriNetUnfolderBase]: 18617/86580 cut-off events. [2025-03-04 06:44:07,445 INFO L125 PetriNetUnfolderBase]: For 6/9 co-relation queries the response was YES. [2025-03-04 06:44:07,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119902 conditions, 86580 events. 18617/86580 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 1059003 event pairs, 16093 based on Foata normal form. 0/76011 useless extension candidates. Maximal degree in co-relation 119809. Up to 33291 conditions per place. [2025-03-04 06:44:07,767 INFO L140 encePairwiseOnDemand]: 1187/1193 looper letters, 277 selfloop transitions, 5 changer transitions 0/1111 dead transitions. [2025-03-04 06:44:07,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1098 places, 1111 transitions, 2811 flow [2025-03-04 06:44:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 06:44:07,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 06:44:07,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5424 transitions. [2025-03-04 06:44:07,773 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.757753562447611 [2025-03-04 06:44:07,773 INFO L175 Difference]: Start difference. First operand has 1094 places, 1112 transitions, 2249 flow. Second operand 6 states and 5424 transitions. [2025-03-04 06:44:07,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1098 places, 1111 transitions, 2811 flow [2025-03-04 06:44:07,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1093 places, 1111 transitions, 2801 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:44:07,785 INFO L231 Difference]: Finished difference. Result has 1093 places, 1111 transitions, 2247 flow [2025-03-04 06:44:07,786 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1193, PETRI_DIFFERENCE_MINUEND_FLOW=2237, PETRI_DIFFERENCE_MINUEND_PLACES=1088, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2247, PETRI_PLACES=1093, PETRI_TRANSITIONS=1111} [2025-03-04 06:44:07,787 INFO L279 CegarLoopForPetriNet]: 1115 programPoint places, -22 predicate places. [2025-03-04 06:44:07,787 INFO L471 AbstractCegarLoop]: Abstraction has has 1093 places, 1111 transitions, 2247 flow [2025-03-04 06:44:07,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 858.5) internal successors, (5151), 6 states have internal predecessors, (5151), 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) [2025-03-04 06:44:07,790 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:07,790 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] [2025-03-04 06:44:07,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:44:07,790 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2025-03-04 06:44:07,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:07,792 INFO L85 PathProgramCache]: Analyzing trace with hash -2064560407, now seen corresponding path program 1 times [2025-03-04 06:44:07,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:07,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634144110] [2025-03-04 06:44:07,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:07,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:07,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 06:44:07,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 06:44:07,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:07,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:07,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 06:44:07,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:07,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634144110] [2025-03-04 06:44:07,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634144110] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 06:44:07,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811124740] [2025-03-04 06:44:07,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:44:07,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:44:07,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:44:07,877 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 06:44:08,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 06:44:08,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 06:44:08,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 06:44:08,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:44:08,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:08,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 06:44:08,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 06:44:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 06:44:08,237 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 06:44:08,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 06:44:08,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811124740] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 06:44:08,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 06:44:08,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2025-03-04 06:44:08,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092581418] [2025-03-04 06:44:08,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 06:44:08,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 06:44:08,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:08,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 06:44:08,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-04 06:44:08,357 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1102 out of 1193 [2025-03-04 06:44:08,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1093 places, 1111 transitions, 2247 flow. Second operand has 5 states, 5 states have (on average 1103.8) internal successors, (5519), 5 states have internal predecessors, (5519), 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) [2025-03-04 06:44:08,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:08,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1102 of 1193 [2025-03-04 06:44:08,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:44:09,970 INFO L124 PetriNetUnfolderBase]: 563/9910 cut-off events. [2025-03-04 06:44:09,970 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-03-04 06:44:10,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10543 conditions, 9910 events. 563/9910 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 90636 event pairs, 210 based on Foata normal form. 1/8502 useless extension candidates. Maximal degree in co-relation 10436. Up to 607 conditions per place. [2025-03-04 06:44:10,021 INFO L140 encePairwiseOnDemand]: 1189/1193 looper letters, 36 selfloop transitions, 4 changer transitions 0/1113 dead transitions. [2025-03-04 06:44:10,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1096 places, 1113 transitions, 2331 flow [2025-03-04 06:44:10,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 06:44:10,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 06:44:10,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4449 transitions. [2025-03-04 06:44:10,026 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9323134953897737 [2025-03-04 06:44:10,026 INFO L175 Difference]: Start difference. First operand has 1093 places, 1111 transitions, 2247 flow. Second operand 4 states and 4449 transitions. [2025-03-04 06:44:10,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1096 places, 1113 transitions, 2331 flow [2025-03-04 06:44:10,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1091 places, 1113 transitions, 2321 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 06:44:10,037 INFO L231 Difference]: Finished difference. Result has 1093 places, 1112 transitions, 2257 flow [2025-03-04 06:44:10,038 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1193, PETRI_DIFFERENCE_MINUEND_FLOW=2237, PETRI_DIFFERENCE_MINUEND_PLACES=1088, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2257, PETRI_PLACES=1093, PETRI_TRANSITIONS=1112} [2025-03-04 06:44:10,038 INFO L279 CegarLoopForPetriNet]: 1115 programPoint places, -22 predicate places. [2025-03-04 06:44:10,039 INFO L471 AbstractCegarLoop]: Abstraction has has 1093 places, 1112 transitions, 2257 flow [2025-03-04 06:44:10,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1103.8) internal successors, (5519), 5 states have internal predecessors, (5519), 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) [2025-03-04 06:44:10,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:44:10,041 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:44:10,047 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 06:44:10,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 06:44:10,243 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr54ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2025-03-04 06:44:10,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:44:10,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2073362496, now seen corresponding path program 2 times [2025-03-04 06:44:10,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:44:10,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786159277] [2025-03-04 06:44:10,243 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 06:44:10,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:44:10,265 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 102 statements into 2 equivalence classes. [2025-03-04 06:44:10,268 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 46 of 102 statements. [2025-03-04 06:44:10,268 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 06:44:10,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:44:10,408 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2025-03-04 06:44:10,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:44:10,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786159277] [2025-03-04 06:44:10,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786159277] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:44:10,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:44:10,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 06:44:10,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299717529] [2025-03-04 06:44:10,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:44:10,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 06:44:10,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:44:10,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 06:44:10,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 06:44:11,773 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 862 out of 1193 [2025-03-04 06:44:11,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1093 places, 1112 transitions, 2257 flow. Second operand has 6 states, 6 states have (on average 865.3333333333334) internal successors, (5192), 6 states have internal predecessors, (5192), 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) [2025-03-04 06:44:11,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:44:11,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 862 of 1193 [2025-03-04 06:44:11,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand