./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.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-ext/40_barrier_vf-b.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 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 06:26:57,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 06:26:57,815 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 06:26:57,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 06:26:57,819 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 06:26:57,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 06:26:57,839 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 06:26:57,839 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 06:26:57,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 06:26:57,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 06:26:57,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 06:26:57,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 06:26:57,840 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 06:26:57,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 06:26:57,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 06:26:57,840 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 06:26:57,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 06:26:57,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 06:26:57,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 06:26:57,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 06:26:57,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 06:26:57,841 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:26:57,841 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 06:26:57,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 06:26:57,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 06:26:57,842 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 06:26:57,842 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 06:26:57,842 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 06:26:57,842 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 -> 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 [2025-03-04 06:26:58,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 06:26:58,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 06:26:58,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 06:26:58,098 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 06:26:58,098 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 06:26:58,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2025-03-04 06:26:59,238 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfe85f3bb/497c7a45051247bbbdb8228f9a525be6/FLAG069604084 [2025-03-04 06:26:59,492 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 06:26:59,493 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2025-03-04 06:26:59,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfe85f3bb/497c7a45051247bbbdb8228f9a525be6/FLAG069604084 [2025-03-04 06:26:59,510 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfe85f3bb/497c7a45051247bbbdb8228f9a525be6 [2025-03-04 06:26:59,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 06:26:59,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 06:26:59,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 06:26:59,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 06:26:59,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 06:26:59,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@907b8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59, skipping insertion in model container [2025-03-04 06:26:59,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 06:26:59,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:26:59,742 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 06:26:59,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 06:26:59,790 INFO L204 MainTranslator]: Completed translation [2025-03-04 06:26:59,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59 WrapperNode [2025-03-04 06:26:59,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 06:26:59,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 06:26:59,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 06:26:59,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 06:26:59,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,803 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,819 INFO L138 Inliner]: procedures = 169, calls = 16, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 114 [2025-03-04 06:26:59,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 06:26:59,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 06:26:59,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 06:26:59,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 06:26:59,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,826 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,834 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,838 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 06:26:59,840 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 06:26:59,840 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 06:26:59,840 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 06:26:59,841 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59" (1/1) ... [2025-03-04 06:26:59,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 06:26:59,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 06:26:59,869 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 06:26:59,871 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 06:26:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-04 06:26:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-04 06:26:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 06:26:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 06:26:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 06:26:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 06:26:59,889 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 06:26:59,977 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 06:26:59,979 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 06:27:00,145 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 06:27:00,145 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 06:27:00,208 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 06:27:00,208 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 06:27:00,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:27:00 BoogieIcfgContainer [2025-03-04 06:27:00,208 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 06:27:00,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 06:27:00,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 06:27:00,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 06:27:00,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 06:26:59" (1/3) ... [2025-03-04 06:27:00,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13aa2592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:27:00, skipping insertion in model container [2025-03-04 06:27:00,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 06:26:59" (2/3) ... [2025-03-04 06:27:00,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13aa2592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:27:00, skipping insertion in model container [2025-03-04 06:27:00,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 06:27:00" (3/3) ... [2025-03-04 06:27:00,215 INFO L128 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf-b.i [2025-03-04 06:27:00,226 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 06:27:00,227 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 40_barrier_vf-b.i that has 2 procedures, 89 locations, 1 initial locations, 1 loop locations, and 15 error locations. [2025-03-04 06:27:00,227 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 06:27:00,271 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:27:00,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 93 transitions, 190 flow [2025-03-04 06:27:00,341 INFO L124 PetriNetUnfolderBase]: 4/100 cut-off events. [2025-03-04 06:27:00,346 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:27:00,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 100 events. 4/100 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2025-03-04 06:27:00,349 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 93 transitions, 190 flow [2025-03-04 06:27:00,353 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 93 transitions, 190 flow [2025-03-04 06:27:00,362 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:27:00,374 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;@63bcc02d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:27:00,374 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2025-03-04 06:27:00,380 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:27:00,380 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-04 06:27:00,381 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:27:00,381 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:00,381 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:27:00,382 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-03-04 06:27:00,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:00,386 INFO L85 PathProgramCache]: Analyzing trace with hash 241149705, now seen corresponding path program 1 times [2025-03-04 06:27:00,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:00,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573945507] [2025-03-04 06:27:00,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:00,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:00,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 06:27:00,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 06:27:00,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:00,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:27:00,519 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 06:27:00,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:27:00,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573945507] [2025-03-04 06:27:00,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573945507] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:27:00,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:27:00,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 06:27:00,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603463928] [2025-03-04 06:27:00,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:27:00,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 06:27:00,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:27:00,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 06:27:00,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 06:27:00,553 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2025-03-04 06:27:00,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 190 flow. Second operand has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 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 06:27:00,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:27:00,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2025-03-04 06:27:00,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:27:00,602 INFO L124 PetriNetUnfolderBase]: 1/76 cut-off events. [2025-03-04 06:27:00,603 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:27:00,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 1/76 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 9/76 useless extension candidates. Maximal degree in co-relation 63. Up to 6 conditions per place. [2025-03-04 06:27:00,605 INFO L140 encePairwiseOnDemand]: 80/93 looper letters, 5 selfloop transitions, 0 changer transitions 0/73 dead transitions. [2025-03-04 06:27:00,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 73 transitions, 160 flow [2025-03-04 06:27:00,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 06:27:00,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 06:27:00,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 166 transitions. [2025-03-04 06:27:00,616 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8924731182795699 [2025-03-04 06:27:00,617 INFO L175 Difference]: Start difference. First operand has 92 places, 93 transitions, 190 flow. Second operand 2 states and 166 transitions. [2025-03-04 06:27:00,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 73 transitions, 160 flow [2025-03-04 06:27:00,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 73 transitions, 160 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:27:00,624 INFO L231 Difference]: Finished difference. Result has 76 places, 73 transitions, 150 flow [2025-03-04 06:27:00,625 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=150, PETRI_PLACES=76, PETRI_TRANSITIONS=73} [2025-03-04 06:27:00,628 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2025-03-04 06:27:00,628 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 73 transitions, 150 flow [2025-03-04 06:27:00,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 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 06:27:00,628 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:00,629 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] [2025-03-04 06:27:00,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 06:27:00,629 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-03-04 06:27:00,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:00,629 INFO L85 PathProgramCache]: Analyzing trace with hash -183354771, now seen corresponding path program 1 times [2025-03-04 06:27:00,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:00,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379087957] [2025-03-04 06:27:00,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:00,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:00,639 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 06:27:00,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 06:27:00,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:00,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:27:00,702 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 06:27:00,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:27:00,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379087957] [2025-03-04 06:27:00,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379087957] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:27:00,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:27:00,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:27:00,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676241137] [2025-03-04 06:27:00,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:27:00,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:27:00,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:27:00,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:27:00,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:27:00,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 93 [2025-03-04 06:27:00,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 73 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 06:27:00,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:27:00,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 93 [2025-03-04 06:27:00,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:27:00,748 INFO L124 PetriNetUnfolderBase]: 0/79 cut-off events. [2025-03-04 06:27:00,748 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 06:27:00,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 79 events. 0/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2025-03-04 06:27:00,749 INFO L140 encePairwiseOnDemand]: 87/93 looper letters, 8 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2025-03-04 06:27:00,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 72 transitions, 172 flow [2025-03-04 06:27:00,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:27:00,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:27:00,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 212 transitions. [2025-03-04 06:27:00,750 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7598566308243727 [2025-03-04 06:27:00,750 INFO L175 Difference]: Start difference. First operand has 76 places, 73 transitions, 150 flow. Second operand 3 states and 212 transitions. [2025-03-04 06:27:00,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 72 transitions, 172 flow [2025-03-04 06:27:00,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:27:00,752 INFO L231 Difference]: Finished difference. Result has 76 places, 71 transitions, 154 flow [2025-03-04 06:27:00,753 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=76, PETRI_TRANSITIONS=71} [2025-03-04 06:27:00,753 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, -16 predicate places. [2025-03-04 06:27:00,753 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 71 transitions, 154 flow [2025-03-04 06:27:00,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 06:27:00,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:00,754 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:27:00,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 06:27:00,754 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2025-03-04 06:27:00,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:00,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1428003723, now seen corresponding path program 1 times [2025-03-04 06:27:00,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:00,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867495363] [2025-03-04 06:27:00,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:00,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:00,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 06:27:00,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 06:27:00,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:00,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:27:00,772 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:27:00,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 06:27:00,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 06:27:00,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:00,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:27:00,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:27:00,795 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:27:00,796 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2025-03-04 06:27:00,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2025-03-04 06:27:00,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2025-03-04 06:27:00,799 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2025-03-04 06:27:00,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 06:27:00,800 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-04 06:27:00,804 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 06:27:00,804 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-04 06:27:00,828 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:27:00,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 164 transitions, 338 flow [2025-03-04 06:27:00,860 INFO L124 PetriNetUnfolderBase]: 8/180 cut-off events. [2025-03-04 06:27:00,860 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 06:27:00,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 180 events. 8/180 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 496 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 149. Up to 3 conditions per place. [2025-03-04 06:27:00,863 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 164 transitions, 338 flow [2025-03-04 06:27:00,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 164 transitions, 338 flow [2025-03-04 06:27:00,865 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:27:00,866 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;@63bcc02d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:27:00,866 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2025-03-04 06:27:00,868 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:27:00,868 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-04 06:27:00,868 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:27:00,868 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:00,869 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:27:00,869 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-03-04 06:27:00,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:00,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1444372653, now seen corresponding path program 1 times [2025-03-04 06:27:00,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:00,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636037673] [2025-03-04 06:27:00,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:00,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:00,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 06:27:00,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 06:27:00,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:00,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:27:00,887 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 06:27:00,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:27:00,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636037673] [2025-03-04 06:27:00,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636037673] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:27:00,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:27:00,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 06:27:00,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093642591] [2025-03-04 06:27:00,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:27:00,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 06:27:00,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:27:00,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 06:27:00,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 06:27:00,889 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 164 [2025-03-04 06:27:00,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 164 transitions, 338 flow. Second operand has 2 states, 2 states have (on average 128.0) internal successors, (256), 2 states have internal predecessors, (256), 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 06:27:00,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:27:00,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 164 [2025-03-04 06:27:00,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:27:00,956 INFO L124 PetriNetUnfolderBase]: 25/367 cut-off events. [2025-03-04 06:27:00,956 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-03-04 06:27:00,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 367 events. 25/367 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1753 event pairs, 14 based on Foata normal form. 62/369 useless extension candidates. Maximal degree in co-relation 329. Up to 50 conditions per place. [2025-03-04 06:27:00,963 INFO L140 encePairwiseOnDemand]: 139/164 looper letters, 10 selfloop transitions, 0 changer transitions 0/128 dead transitions. [2025-03-04 06:27:00,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 128 transitions, 286 flow [2025-03-04 06:27:00,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 06:27:00,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 06:27:00,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 289 transitions. [2025-03-04 06:27:00,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8810975609756098 [2025-03-04 06:27:00,964 INFO L175 Difference]: Start difference. First operand has 161 places, 164 transitions, 338 flow. Second operand 2 states and 289 transitions. [2025-03-04 06:27:00,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 128 transitions, 286 flow [2025-03-04 06:27:00,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 128 transitions, 286 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:27:00,967 INFO L231 Difference]: Finished difference. Result has 132 places, 128 transitions, 266 flow [2025-03-04 06:27:00,967 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=266, PETRI_PLACES=132, PETRI_TRANSITIONS=128} [2025-03-04 06:27:00,967 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -29 predicate places. [2025-03-04 06:27:00,967 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 128 transitions, 266 flow [2025-03-04 06:27:00,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 128.0) internal successors, (256), 2 states have internal predecessors, (256), 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 06:27:00,968 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:00,968 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] [2025-03-04 06:27:00,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 06:27:00,968 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-03-04 06:27:00,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:00,968 INFO L85 PathProgramCache]: Analyzing trace with hash 767703121, now seen corresponding path program 1 times [2025-03-04 06:27:00,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:00,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278836877] [2025-03-04 06:27:00,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:00,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:00,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 06:27:00,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 06:27:00,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:00,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:27:01,006 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 06:27:01,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:27:01,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278836877] [2025-03-04 06:27:01,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278836877] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:27:01,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:27:01,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:27:01,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803814875] [2025-03-04 06:27:01,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:27:01,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:27:01,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:27:01,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:27:01,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:27:01,042 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 164 [2025-03-04 06:27:01,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 128 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 06:27:01,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:27:01,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 164 [2025-03-04 06:27:01,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:27:01,193 INFO L124 PetriNetUnfolderBase]: 168/1333 cut-off events. [2025-03-04 06:27:01,193 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-03-04 06:27:01,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1751 conditions, 1333 events. 168/1333 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 10436 event pairs, 47 based on Foata normal form. 0/1144 useless extension candidates. Maximal degree in co-relation 1746. Up to 243 conditions per place. [2025-03-04 06:27:01,200 INFO L140 encePairwiseOnDemand]: 148/164 looper letters, 35 selfloop transitions, 12 changer transitions 0/149 dead transitions. [2025-03-04 06:27:01,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 149 transitions, 407 flow [2025-03-04 06:27:01,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:27:01,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:27:01,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2025-03-04 06:27:01,202 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7804878048780488 [2025-03-04 06:27:01,202 INFO L175 Difference]: Start difference. First operand has 132 places, 128 transitions, 266 flow. Second operand 3 states and 384 transitions. [2025-03-04 06:27:01,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 149 transitions, 407 flow [2025-03-04 06:27:01,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 149 transitions, 407 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:27:01,205 INFO L231 Difference]: Finished difference. Result has 136 places, 140 transitions, 370 flow [2025-03-04 06:27:01,205 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=136, PETRI_TRANSITIONS=140} [2025-03-04 06:27:01,206 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -25 predicate places. [2025-03-04 06:27:01,206 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 140 transitions, 370 flow [2025-03-04 06:27:01,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 06:27:01,206 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:01,206 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] [2025-03-04 06:27:01,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 06:27:01,206 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-03-04 06:27:01,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:01,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1410025649, now seen corresponding path program 1 times [2025-03-04 06:27:01,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:01,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906886720] [2025-03-04 06:27:01,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:01,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:01,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 06:27:01,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 06:27:01,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:01,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:27:01,250 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 06:27:01,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:27:01,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906886720] [2025-03-04 06:27:01,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906886720] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:27:01,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:27:01,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:27:01,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132907021] [2025-03-04 06:27:01,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:27:01,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:27:01,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:27:01,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:27:01,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:27:01,299 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 164 [2025-03-04 06:27:01,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 140 transitions, 370 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 06:27:01,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:27:01,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 164 [2025-03-04 06:27:01,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:27:01,461 INFO L124 PetriNetUnfolderBase]: 239/1731 cut-off events. [2025-03-04 06:27:01,461 INFO L125 PetriNetUnfolderBase]: For 372/393 co-relation queries the response was YES. [2025-03-04 06:27:01,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2636 conditions, 1731 events. 239/1731 cut-off events. For 372/393 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14557 event pairs, 111 based on Foata normal form. 3/1494 useless extension candidates. Maximal degree in co-relation 2629. Up to 431 conditions per place. [2025-03-04 06:27:01,471 INFO L140 encePairwiseOnDemand]: 156/164 looper letters, 35 selfloop transitions, 10 changer transitions 0/153 dead transitions. [2025-03-04 06:27:01,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 153 transitions, 511 flow [2025-03-04 06:27:01,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:27:01,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:27:01,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2025-03-04 06:27:01,472 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7621951219512195 [2025-03-04 06:27:01,472 INFO L175 Difference]: Start difference. First operand has 136 places, 140 transitions, 370 flow. Second operand 3 states and 375 transitions. [2025-03-04 06:27:01,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 153 transitions, 511 flow [2025-03-04 06:27:01,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 153 transitions, 479 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:27:01,477 INFO L231 Difference]: Finished difference. Result has 138 places, 148 transitions, 432 flow [2025-03-04 06:27:01,478 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=138, PETRI_TRANSITIONS=148} [2025-03-04 06:27:01,480 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, -23 predicate places. [2025-03-04 06:27:01,480 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 148 transitions, 432 flow [2025-03-04 06:27:01,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 06:27:01,480 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:01,480 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:27:01,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 06:27:01,481 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2025-03-04 06:27:01,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:01,481 INFO L85 PathProgramCache]: Analyzing trace with hash 871143494, now seen corresponding path program 1 times [2025-03-04 06:27:01,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:01,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435418655] [2025-03-04 06:27:01,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:01,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:01,487 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 06:27:01,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 06:27:01,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:01,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:27:01,493 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:27:01,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 06:27:01,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 06:27:01,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:01,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:27:01,504 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:27:01,505 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:27:01,505 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2025-03-04 06:27:01,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2025-03-04 06:27:01,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2025-03-04 06:27:01,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 06:27:01,508 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-04 06:27:01,508 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 06:27:01,508 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-04 06:27:01,542 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:27:01,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 235 transitions, 488 flow [2025-03-04 06:27:01,571 INFO L124 PetriNetUnfolderBase]: 12/260 cut-off events. [2025-03-04 06:27:01,572 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-04 06:27:01,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 260 events. 12/260 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 951 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 219. Up to 4 conditions per place. [2025-03-04 06:27:01,573 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 235 transitions, 488 flow [2025-03-04 06:27:01,577 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 235 transitions, 488 flow [2025-03-04 06:27:01,578 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:27:01,579 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;@63bcc02d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:27:01,579 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2025-03-04 06:27:01,580 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:27:01,581 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-04 06:27:01,581 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:27:01,581 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:01,581 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:27:01,581 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-04 06:27:01,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:01,582 INFO L85 PathProgramCache]: Analyzing trace with hash 391485234, now seen corresponding path program 1 times [2025-03-04 06:27:01,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:01,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642778986] [2025-03-04 06:27:01,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:01,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:01,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 06:27:01,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 06:27:01,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:01,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:27:01,595 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 06:27:01,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:27:01,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642778986] [2025-03-04 06:27:01,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642778986] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:27:01,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:27:01,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 06:27:01,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144092909] [2025-03-04 06:27:01,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:27:01,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 06:27:01,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:27:01,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 06:27:01,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 06:27:01,597 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 235 [2025-03-04 06:27:01,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 235 transitions, 488 flow. Second operand has 2 states, 2 states have (on average 181.0) internal successors, (362), 2 states have internal predecessors, (362), 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 06:27:01,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:27:01,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 235 [2025-03-04 06:27:01,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:27:01,758 INFO L124 PetriNetUnfolderBase]: 250/1758 cut-off events. [2025-03-04 06:27:01,758 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2025-03-04 06:27:01,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2234 conditions, 1758 events. 250/1758 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 14422 event pairs, 161 based on Foata normal form. 410/1870 useless extension candidates. Maximal degree in co-relation 1683. Up to 378 conditions per place. [2025-03-04 06:27:01,770 INFO L140 encePairwiseOnDemand]: 198/235 looper letters, 15 selfloop transitions, 0 changer transitions 0/183 dead transitions. [2025-03-04 06:27:01,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 183 transitions, 414 flow [2025-03-04 06:27:01,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 06:27:01,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 06:27:01,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 412 transitions. [2025-03-04 06:27:01,772 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8765957446808511 [2025-03-04 06:27:01,772 INFO L175 Difference]: Start difference. First operand has 230 places, 235 transitions, 488 flow. Second operand 2 states and 412 transitions. [2025-03-04 06:27:01,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 183 transitions, 414 flow [2025-03-04 06:27:01,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 183 transitions, 412 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-04 06:27:01,777 INFO L231 Difference]: Finished difference. Result has 188 places, 183 transitions, 382 flow [2025-03-04 06:27:01,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=382, PETRI_PLACES=188, PETRI_TRANSITIONS=183} [2025-03-04 06:27:01,778 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -42 predicate places. [2025-03-04 06:27:01,779 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 183 transitions, 382 flow [2025-03-04 06:27:01,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 181.0) internal successors, (362), 2 states have internal predecessors, (362), 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 06:27:01,780 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:01,780 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] [2025-03-04 06:27:01,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 06:27:01,780 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-04 06:27:01,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:01,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1739784458, now seen corresponding path program 1 times [2025-03-04 06:27:01,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:01,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501651241] [2025-03-04 06:27:01,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:01,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:01,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 06:27:01,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 06:27:01,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:01,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:27:01,809 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 06:27:01,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:27:01,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501651241] [2025-03-04 06:27:01,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501651241] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:27:01,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:27:01,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:27:01,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375595361] [2025-03-04 06:27:01,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:27:01,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:27:01,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:27:01,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:27:01,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:27:01,864 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 235 [2025-03-04 06:27:01,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 183 transitions, 382 flow. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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 06:27:01,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:27:01,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 235 [2025-03-04 06:27:01,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:27:03,568 INFO L124 PetriNetUnfolderBase]: 5411/23183 cut-off events. [2025-03-04 06:27:03,569 INFO L125 PetriNetUnfolderBase]: For 625/625 co-relation queries the response was YES. [2025-03-04 06:27:03,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32442 conditions, 23183 events. 5411/23183 cut-off events. For 625/625 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 304956 event pairs, 1869 based on Foata normal form. 0/19600 useless extension candidates. Maximal degree in co-relation 32436. Up to 5475 conditions per place. [2025-03-04 06:27:03,702 INFO L140 encePairwiseOnDemand]: 211/235 looper letters, 53 selfloop transitions, 18 changer transitions 0/215 dead transitions. [2025-03-04 06:27:03,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 215 transitions, 598 flow [2025-03-04 06:27:03,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:27:03,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:27:03,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions. [2025-03-04 06:27:03,704 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7730496453900709 [2025-03-04 06:27:03,704 INFO L175 Difference]: Start difference. First operand has 188 places, 183 transitions, 382 flow. Second operand 3 states and 545 transitions. [2025-03-04 06:27:03,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 215 transitions, 598 flow [2025-03-04 06:27:03,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 215 transitions, 598 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:27:03,708 INFO L231 Difference]: Finished difference. Result has 192 places, 201 transitions, 538 flow [2025-03-04 06:27:03,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=538, PETRI_PLACES=192, PETRI_TRANSITIONS=201} [2025-03-04 06:27:03,710 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -38 predicate places. [2025-03-04 06:27:03,710 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 201 transitions, 538 flow [2025-03-04 06:27:03,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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 06:27:03,711 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:03,711 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] [2025-03-04 06:27:03,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 06:27:03,711 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-04 06:27:03,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:03,711 INFO L85 PathProgramCache]: Analyzing trace with hash -163981481, now seen corresponding path program 1 times [2025-03-04 06:27:03,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:03,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446936876] [2025-03-04 06:27:03,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:03,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:03,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 06:27:03,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 06:27:03,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:03,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:27:03,738 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 06:27:03,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:27:03,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446936876] [2025-03-04 06:27:03,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446936876] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:27:03,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:27:03,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:27:03,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957420078] [2025-03-04 06:27:03,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:27:03,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:27:03,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:27:03,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:27:03,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:27:03,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 235 [2025-03-04 06:27:03,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 201 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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 06:27:03,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:27:03,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 235 [2025-03-04 06:27:03,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:27:05,971 INFO L124 PetriNetUnfolderBase]: 7453/33457 cut-off events. [2025-03-04 06:27:05,972 INFO L125 PetriNetUnfolderBase]: For 9305/10273 co-relation queries the response was YES. [2025-03-04 06:27:06,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54050 conditions, 33457 events. 7453/33457 cut-off events. For 9305/10273 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 469906 event pairs, 3518 based on Foata normal form. 56/28457 useless extension candidates. Maximal degree in co-relation 54042. Up to 9785 conditions per place. [2025-03-04 06:27:06,263 INFO L140 encePairwiseOnDemand]: 223/235 looper letters, 53 selfloop transitions, 20 changer transitions 0/229 dead transitions. [2025-03-04 06:27:06,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 229 transitions, 798 flow [2025-03-04 06:27:06,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:27:06,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:27:06,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2025-03-04 06:27:06,269 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7659574468085106 [2025-03-04 06:27:06,269 INFO L175 Difference]: Start difference. First operand has 192 places, 201 transitions, 538 flow. Second operand 3 states and 540 transitions. [2025-03-04 06:27:06,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 229 transitions, 798 flow [2025-03-04 06:27:06,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 229 transitions, 746 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:27:06,284 INFO L231 Difference]: Finished difference. Result has 194 places, 219 transitions, 688 flow [2025-03-04 06:27:06,285 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=194, PETRI_TRANSITIONS=219} [2025-03-04 06:27:06,285 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -36 predicate places. [2025-03-04 06:27:06,285 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 219 transitions, 688 flow [2025-03-04 06:27:06,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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 06:27:06,286 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:06,286 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2025-03-04 06:27:06,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 06:27:06,286 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-04 06:27:06,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:06,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1490310956, now seen corresponding path program 1 times [2025-03-04 06:27:06,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:06,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162367817] [2025-03-04 06:27:06,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:06,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:06,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 06:27:06,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 06:27:06,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:06,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:27:06,316 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 06:27:06,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:27:06,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162367817] [2025-03-04 06:27:06,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162367817] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:27:06,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:27:06,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:27:06,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122268116] [2025-03-04 06:27:06,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:27:06,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:27:06,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:27:06,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:27:06,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:27:06,361 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 235 [2025-03-04 06:27:06,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 219 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:27:06,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:27:06,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 235 [2025-03-04 06:27:06,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:27:09,150 INFO L124 PetriNetUnfolderBase]: 9179/38377 cut-off events. [2025-03-04 06:27:09,151 INFO L125 PetriNetUnfolderBase]: For 15394/16883 co-relation queries the response was YES. [2025-03-04 06:27:09,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66150 conditions, 38377 events. 9179/38377 cut-off events. For 15394/16883 co-relation queries the response was YES. Maximal size of possible extension queue 1126. Compared 543588 event pairs, 3917 based on Foata normal form. 64/32385 useless extension candidates. Maximal degree in co-relation 66141. Up to 11809 conditions per place. [2025-03-04 06:27:09,414 INFO L140 encePairwiseOnDemand]: 223/235 looper letters, 66 selfloop transitions, 28 changer transitions 0/252 dead transitions. [2025-03-04 06:27:09,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 252 transitions, 1039 flow [2025-03-04 06:27:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:27:09,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:27:09,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2025-03-04 06:27:09,416 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7645390070921986 [2025-03-04 06:27:09,416 INFO L175 Difference]: Start difference. First operand has 194 places, 219 transitions, 688 flow. Second operand 3 states and 539 transitions. [2025-03-04 06:27:09,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 252 transitions, 1039 flow [2025-03-04 06:27:09,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 252 transitions, 983 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 06:27:09,444 INFO L231 Difference]: Finished difference. Result has 196 places, 243 transitions, 934 flow [2025-03-04 06:27:09,445 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=934, PETRI_PLACES=196, PETRI_TRANSITIONS=243} [2025-03-04 06:27:09,446 INFO L279 CegarLoopForPetriNet]: 230 programPoint places, -34 predicate places. [2025-03-04 06:27:09,446 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 243 transitions, 934 flow [2025-03-04 06:27:09,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 06:27:09,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:09,446 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:27:09,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 06:27:09,447 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2025-03-04 06:27:09,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:09,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1420436718, now seen corresponding path program 1 times [2025-03-04 06:27:09,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:09,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309335667] [2025-03-04 06:27:09,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:09,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:09,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 06:27:09,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 06:27:09,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:09,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:27:09,461 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 06:27:09,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 06:27:09,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 06:27:09,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:09,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 06:27:09,471 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 06:27:09,472 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 06:27:09,472 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2025-03-04 06:27:09,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2025-03-04 06:27:09,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2025-03-04 06:27:09,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2025-03-04 06:27:09,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2025-03-04 06:27:09,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2025-03-04 06:27:09,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2025-03-04 06:27:09,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2025-03-04 06:27:09,474 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2025-03-04 06:27:09,475 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2025-03-04 06:27:09,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2025-03-04 06:27:09,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2025-03-04 06:27:09,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2025-03-04 06:27:09,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2025-03-04 06:27:09,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2025-03-04 06:27:09,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2025-03-04 06:27:09,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2025-03-04 06:27:09,476 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2025-03-04 06:27:09,477 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2025-03-04 06:27:09,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 06:27:09,478 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-04 06:27:09,478 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 06:27:09,478 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-04 06:27:09,509 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 06:27:09,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 299 places, 306 transitions, 640 flow [2025-03-04 06:27:09,534 INFO L124 PetriNetUnfolderBase]: 16/340 cut-off events. [2025-03-04 06:27:09,534 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-04 06:27:09,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 340 events. 16/340 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1389 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 289. Up to 5 conditions per place. [2025-03-04 06:27:09,537 INFO L82 GeneralOperation]: Start removeDead. Operand has 299 places, 306 transitions, 640 flow [2025-03-04 06:27:09,541 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 299 places, 306 transitions, 640 flow [2025-03-04 06:27:09,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 06:27:09,543 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;@63bcc02d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 06:27:09,543 INFO L334 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2025-03-04 06:27:09,544 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 06:27:09,544 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-03-04 06:27:09,544 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 06:27:09,544 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:09,544 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 06:27:09,544 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-03-04 06:27:09,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:09,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1377593764, now seen corresponding path program 1 times [2025-03-04 06:27:09,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:09,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721600944] [2025-03-04 06:27:09,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:09,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:09,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 06:27:09,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 06:27:09,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:09,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:27:09,558 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 06:27:09,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:27:09,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721600944] [2025-03-04 06:27:09,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721600944] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:27:09,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:27:09,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 06:27:09,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953570262] [2025-03-04 06:27:09,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:27:09,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 06:27:09,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:27:09,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 06:27:09,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 06:27:09,561 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 306 [2025-03-04 06:27:09,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 306 transitions, 640 flow. Second operand has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 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 06:27:09,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:27:09,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 306 [2025-03-04 06:27:09,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:27:10,259 INFO L124 PetriNetUnfolderBase]: 1933/8538 cut-off events. [2025-03-04 06:27:10,259 INFO L125 PetriNetUnfolderBase]: For 1169/1169 co-relation queries the response was YES. [2025-03-04 06:27:10,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11743 conditions, 8538 events. 1933/8538 cut-off events. For 1169/1169 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 93992 event pairs, 1329 based on Foata normal form. 2613/9783 useless extension candidates. Maximal degree in co-relation 8793. Up to 2591 conditions per place. [2025-03-04 06:27:10,342 INFO L140 encePairwiseOnDemand]: 257/306 looper letters, 20 selfloop transitions, 0 changer transitions 0/238 dead transitions. [2025-03-04 06:27:10,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 238 transitions, 544 flow [2025-03-04 06:27:10,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 06:27:10,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 06:27:10,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 535 transitions. [2025-03-04 06:27:10,344 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8741830065359477 [2025-03-04 06:27:10,344 INFO L175 Difference]: Start difference. First operand has 299 places, 306 transitions, 640 flow. Second operand 2 states and 535 transitions. [2025-03-04 06:27:10,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 238 transitions, 544 flow [2025-03-04 06:27:10,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 238 transitions, 538 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-03-04 06:27:10,347 INFO L231 Difference]: Finished difference. Result has 244 places, 238 transitions, 498 flow [2025-03-04 06:27:10,347 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=498, PETRI_PLACES=244, PETRI_TRANSITIONS=238} [2025-03-04 06:27:10,348 INFO L279 CegarLoopForPetriNet]: 299 programPoint places, -55 predicate places. [2025-03-04 06:27:10,348 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 238 transitions, 498 flow [2025-03-04 06:27:10,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 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 06:27:10,348 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:10,348 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] [2025-03-04 06:27:10,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 06:27:10,349 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-03-04 06:27:10,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:10,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1017719784, now seen corresponding path program 1 times [2025-03-04 06:27:10,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:10,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840732535] [2025-03-04 06:27:10,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:10,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:10,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 06:27:10,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 06:27:10,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:10,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:27:10,365 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 06:27:10,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:27:10,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840732535] [2025-03-04 06:27:10,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840732535] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:27:10,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:27:10,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:27:10,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226012863] [2025-03-04 06:27:10,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:27:10,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:27:10,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:27:10,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:27:10,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:27:10,416 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 306 [2025-03-04 06:27:10,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 238 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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 06:27:10,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:27:10,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 306 [2025-03-04 06:27:10,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 06:27:38,390 INFO L124 PetriNetUnfolderBase]: 120275/369502 cut-off events. [2025-03-04 06:27:38,391 INFO L125 PetriNetUnfolderBase]: For 9664/9664 co-relation queries the response was YES. [2025-03-04 06:27:40,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546269 conditions, 369502 events. 120275/369502 cut-off events. For 9664/9664 co-relation queries the response was YES. Maximal size of possible extension queue 9286. Compared 6242699 event pairs, 45384 based on Foata normal form. 0/311626 useless extension candidates. Maximal degree in co-relation 546262. Up to 103254 conditions per place. [2025-03-04 06:27:42,343 INFO L140 encePairwiseOnDemand]: 274/306 looper letters, 71 selfloop transitions, 24 changer transitions 0/281 dead transitions. [2025-03-04 06:27:42,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 281 transitions, 789 flow [2025-03-04 06:27:42,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 06:27:42,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 06:27:42,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 706 transitions. [2025-03-04 06:27:42,345 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7690631808278867 [2025-03-04 06:27:42,345 INFO L175 Difference]: Start difference. First operand has 244 places, 238 transitions, 498 flow. Second operand 3 states and 706 transitions. [2025-03-04 06:27:42,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 281 transitions, 789 flow [2025-03-04 06:27:42,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 281 transitions, 789 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 06:27:42,353 INFO L231 Difference]: Finished difference. Result has 248 places, 262 transitions, 706 flow [2025-03-04 06:27:42,353 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=706, PETRI_PLACES=248, PETRI_TRANSITIONS=262} [2025-03-04 06:27:42,353 INFO L279 CegarLoopForPetriNet]: 299 programPoint places, -51 predicate places. [2025-03-04 06:27:42,353 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 262 transitions, 706 flow [2025-03-04 06:27:42,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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 06:27:42,354 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 06:27:42,354 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] [2025-03-04 06:27:42,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-04 06:27:42,354 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2025-03-04 06:27:42,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 06:27:42,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1928402205, now seen corresponding path program 1 times [2025-03-04 06:27:42,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 06:27:42,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269793706] [2025-03-04 06:27:42,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 06:27:42,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 06:27:42,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 06:27:42,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 06:27:42,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 06:27:42,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 06:27:42,373 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 06:27:42,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 06:27:42,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269793706] [2025-03-04 06:27:42,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269793706] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 06:27:42,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 06:27:42,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 06:27:42,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268310962] [2025-03-04 06:27:42,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 06:27:42,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 06:27:42,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 06:27:42,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 06:27:42,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 06:27:42,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 306 [2025-03-04 06:27:42,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 262 transitions, 706 flow. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 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 06:27:42,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 06:27:42,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 306 [2025-03-04 06:27:42,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand