./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/07_rand.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 735b3cc8 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/07_rand.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 205a9486f54af3fadf53566888e578b0d398a9ea9e18a2466103c3619a5ade13 --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:17:12,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:17:12,375 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:17:12,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:17:12,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:17:12,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:17:12,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:17:12,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:17:12,398 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:17:12,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:17:12,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:17:12,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:17:12,399 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:17:12,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:17:12,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:17:12,400 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:17:12,400 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:17:12,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:17:12,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:17:12,400 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:17:12,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:17:12,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:17:12,400 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:17:12,400 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:17:12,400 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:17:12,401 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:17:12,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:17:12,401 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:17:12,401 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 -> 205a9486f54af3fadf53566888e578b0d398a9ea9e18a2466103c3619a5ade13 [2025-03-14 01:17:12,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:17:12,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:17:12,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:17:12,631 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:17:12,631 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:17:12,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/07_rand.i [2025-03-14 01:17:13,794 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c32eed1d5/47a8a7f541e24eed940efc1e92ca2f0d/FLAGb3de59e27 [2025-03-14 01:17:14,097 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:17:14,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/07_rand.i [2025-03-14 01:17:14,108 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c32eed1d5/47a8a7f541e24eed940efc1e92ca2f0d/FLAGb3de59e27 [2025-03-14 01:17:14,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c32eed1d5/47a8a7f541e24eed940efc1e92ca2f0d [2025-03-14 01:17:14,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:17:14,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:17:14,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:17:14,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:17:14,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:17:14,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e950db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14, skipping insertion in model container [2025-03-14 01:17:14,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,153 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:17:14,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:17:14,395 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:17:14,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:17:14,455 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:17:14,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14 WrapperNode [2025-03-14 01:17:14,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:17:14,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:17:14,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:17:14,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:17:14,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,477 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,499 INFO L138 Inliner]: procedures = 173, calls = 21, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 161 [2025-03-14 01:17:14,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:17:14,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:17:14,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:17:14,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:17:14,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,516 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:17:14,520 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:17:14,521 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:17:14,521 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:17:14,521 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14" (1/1) ... [2025-03-14 01:17:14,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:17:14,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:17:14,545 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) [2025-03-14 01:17:14,547 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 [2025-03-14 01:17:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-14 01:17:14,562 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-14 01:17:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:17:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 01:17:14,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:17:14,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:17:14,562 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:17:14,641 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:17:14,642 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:17:14,851 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:17:14,852 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:17:14,853 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:17:14,945 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:17:14,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:17:14 BoogieIcfgContainer [2025-03-14 01:17:14,945 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:17:14,947 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:17:14,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:17:14,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:17:14,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:17:14" (1/3) ... [2025-03-14 01:17:14,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4ef1fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:17:14, skipping insertion in model container [2025-03-14 01:17:14,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:17:14" (2/3) ... [2025-03-14 01:17:14,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4ef1fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:17:14, skipping insertion in model container [2025-03-14 01:17:14,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:17:14" (3/3) ... [2025-03-14 01:17:14,952 INFO L128 eAbstractionObserver]: Analyzing ICFG 07_rand.i [2025-03-14 01:17:14,961 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:17:14,962 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 07_rand.i that has 2 procedures, 124 locations, 1 initial locations, 3 loop locations, and 16 error locations. [2025-03-14 01:17:14,963 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:17:15,021 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 01:17:15,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 135 transitions, 274 flow [2025-03-14 01:17:15,105 INFO L124 PetriNetUnfolderBase]: 11/142 cut-off events. [2025-03-14 01:17:15,107 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:17:15,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 142 events. 11/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 246 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 121. Up to 3 conditions per place. [2025-03-14 01:17:15,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 135 transitions, 274 flow [2025-03-14 01:17:15,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 135 transitions, 274 flow [2025-03-14 01:17:15,122 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:17:15,134 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;@222c570a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:17:15,134 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2025-03-14 01:17:15,142 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:17:15,142 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-03-14 01:17:15,142 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:17:15,142 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:15,143 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:17:15,144 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-03-14 01:17:15,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:15,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1273849888, now seen corresponding path program 1 times [2025-03-14 01:17:15,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:15,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563327897] [2025-03-14 01:17:15,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:15,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:15,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-14 01:17:15,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-14 01:17:15,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:15,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:17:15,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:17:15,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:17:15,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563327897] [2025-03-14 01:17:15,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563327897] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:17:15,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:17:15,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-14 01:17:15,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98250321] [2025-03-14 01:17:15,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:17:15,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 01:17:15,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:17:15,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 01:17:15,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 01:17:15,298 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 135 [2025-03-14 01:17:15,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 135 transitions, 274 flow. Second operand has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 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) [2025-03-14 01:17:15,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:17:15,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 135 [2025-03-14 01:17:15,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:17:15,341 INFO L124 PetriNetUnfolderBase]: 3/109 cut-off events. [2025-03-14 01:17:15,342 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:17:15,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 109 events. 3/109 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 117 event pairs, 0 based on Foata normal form. 14/111 useless extension candidates. Maximal degree in co-relation 97. Up to 7 conditions per place. [2025-03-14 01:17:15,343 INFO L140 encePairwiseOnDemand]: 116/135 looper letters, 6 selfloop transitions, 0 changer transitions 0/106 dead transitions. [2025-03-14 01:17:15,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 106 transitions, 228 flow [2025-03-14 01:17:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-14 01:17:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-14 01:17:15,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 239 transitions. [2025-03-14 01:17:15,353 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8851851851851852 [2025-03-14 01:17:15,355 INFO L175 Difference]: Start difference. First operand has 127 places, 135 transitions, 274 flow. Second operand 2 states and 239 transitions. [2025-03-14 01:17:15,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 106 transitions, 228 flow [2025-03-14 01:17:15,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 106 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:17:15,362 INFO L231 Difference]: Finished difference. Result has 107 places, 106 transitions, 216 flow [2025-03-14 01:17:15,364 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=216, PETRI_PLACES=107, PETRI_TRANSITIONS=106} [2025-03-14 01:17:15,366 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -20 predicate places. [2025-03-14 01:17:15,367 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 106 transitions, 216 flow [2025-03-14 01:17:15,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 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) [2025-03-14 01:17:15,367 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:15,367 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:17:15,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:17:15,368 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-03-14 01:17:15,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:15,368 INFO L85 PathProgramCache]: Analyzing trace with hash 104079620, now seen corresponding path program 1 times [2025-03-14 01:17:15,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:15,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241505711] [2025-03-14 01:17:15,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:15,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:15,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-14 01:17:15,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-14 01:17:15,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:15,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:17:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:17:15,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:17:15,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241505711] [2025-03-14 01:17:15,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241505711] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:17:15,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:17:15,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:17:15,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526085854] [2025-03-14 01:17:15,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:17:15,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:17:15,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:17:15,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:17:15,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:17:15,457 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 135 [2025-03-14 01:17:15,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 106 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2025-03-14 01:17:15,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:17:15,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 135 [2025-03-14 01:17:15,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:17:15,487 INFO L124 PetriNetUnfolderBase]: 3/108 cut-off events. [2025-03-14 01:17:15,487 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:17:15,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 108 events. 3/108 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 119. Up to 5 conditions per place. [2025-03-14 01:17:15,487 INFO L140 encePairwiseOnDemand]: 132/135 looper letters, 7 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2025-03-14 01:17:15,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 105 transitions, 232 flow [2025-03-14 01:17:15,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:17:15,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:17:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 319 transitions. [2025-03-14 01:17:15,491 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7876543209876543 [2025-03-14 01:17:15,491 INFO L175 Difference]: Start difference. First operand has 107 places, 106 transitions, 216 flow. Second operand 3 states and 319 transitions. [2025-03-14 01:17:15,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 105 transitions, 232 flow [2025-03-14 01:17:15,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 232 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:17:15,493 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 218 flow [2025-03-14 01:17:15,494 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=108, PETRI_TRANSITIONS=105} [2025-03-14 01:17:15,494 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -19 predicate places. [2025-03-14 01:17:15,494 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 218 flow [2025-03-14 01:17:15,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2025-03-14 01:17:15,495 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:15,495 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:17:15,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 01:17:15,495 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-03-14 01:17:15,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:15,497 INFO L85 PathProgramCache]: Analyzing trace with hash -412308763, now seen corresponding path program 1 times [2025-03-14 01:17:15,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:15,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849000966] [2025-03-14 01:17:15,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:15,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:15,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-14 01:17:15,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-14 01:17:15,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:15,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:17:15,515 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-14 01:17:15,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-14 01:17:15,522 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-14 01:17:15,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:15,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:17:15,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-14 01:17:15,541 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-14 01:17:15,545 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2025-03-14 01:17:15,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2025-03-14 01:17:15,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2025-03-14 01:17:15,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2025-03-14 01:17:15,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2025-03-14 01:17:15,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2025-03-14 01:17:15,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2025-03-14 01:17:15,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2025-03-14 01:17:15,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2025-03-14 01:17:15,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2025-03-14 01:17:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2025-03-14 01:17:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2025-03-14 01:17:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2025-03-14 01:17:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2025-03-14 01:17:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2025-03-14 01:17:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2025-03-14 01:17:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2025-03-14 01:17:15,551 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2025-03-14 01:17:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2025-03-14 01:17:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2025-03-14 01:17:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2025-03-14 01:17:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2025-03-14 01:17:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2025-03-14 01:17:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2025-03-14 01:17:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2025-03-14 01:17:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2025-03-14 01:17:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2025-03-14 01:17:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2025-03-14 01:17:15,552 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2025-03-14 01:17:15,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2025-03-14 01:17:15,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2025-03-14 01:17:15,553 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2025-03-14 01:17:15,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2025-03-14 01:17:15,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:17:15,554 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-14 01:17:15,556 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-14 01:17:15,557 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-14 01:17:15,600 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 01:17:15,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 248 transitions, 506 flow [2025-03-14 01:17:15,644 INFO L124 PetriNetUnfolderBase]: 22/264 cut-off events. [2025-03-14 01:17:15,645 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-14 01:17:15,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 264 events. 22/264 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 864 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 233. Up to 3 conditions per place. [2025-03-14 01:17:15,649 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 248 transitions, 506 flow [2025-03-14 01:17:15,653 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 231 places, 248 transitions, 506 flow [2025-03-14 01:17:15,654 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:17:15,655 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;@222c570a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:17:15,656 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2025-03-14 01:17:15,658 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:17:15,659 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-03-14 01:17:15,659 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:17:15,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:15,659 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:17:15,659 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-03-14 01:17:15,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:15,661 INFO L85 PathProgramCache]: Analyzing trace with hash -553045616, now seen corresponding path program 1 times [2025-03-14 01:17:15,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:15,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399685831] [2025-03-14 01:17:15,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:15,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:15,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-14 01:17:15,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-14 01:17:15,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:15,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:17:15,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:17:15,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:17:15,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399685831] [2025-03-14 01:17:15,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399685831] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:17:15,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:17:15,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-14 01:17:15,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491235501] [2025-03-14 01:17:15,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:17:15,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 01:17:15,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:17:15,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 01:17:15,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 01:17:15,702 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 248 [2025-03-14 01:17:15,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 248 transitions, 506 flow. Second operand has 2 states, 2 states have (on average 194.0) internal successors, (388), 2 states have internal predecessors, (388), 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) [2025-03-14 01:17:15,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:17:15,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 248 [2025-03-14 01:17:15,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:17:15,793 INFO L124 PetriNetUnfolderBase]: 54/748 cut-off events. [2025-03-14 01:17:15,793 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-03-14 01:17:15,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 748 events. 54/748 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4547 event pairs, 30 based on Foata normal form. 134/778 useless extension candidates. Maximal degree in co-relation 694. Up to 73 conditions per place. [2025-03-14 01:17:15,804 INFO L140 encePairwiseOnDemand]: 211/248 looper letters, 12 selfloop transitions, 0 changer transitions 0/194 dead transitions. [2025-03-14 01:17:15,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 194 transitions, 422 flow [2025-03-14 01:17:15,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-14 01:17:15,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-14 01:17:15,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 435 transitions. [2025-03-14 01:17:15,809 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8770161290322581 [2025-03-14 01:17:15,809 INFO L175 Difference]: Start difference. First operand has 231 places, 248 transitions, 506 flow. Second operand 2 states and 435 transitions. [2025-03-14 01:17:15,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 194 transitions, 422 flow [2025-03-14 01:17:15,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 194 transitions, 422 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:17:15,814 INFO L231 Difference]: Finished difference. Result has 194 places, 194 transitions, 398 flow [2025-03-14 01:17:15,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=398, PETRI_PLACES=194, PETRI_TRANSITIONS=194} [2025-03-14 01:17:15,817 INFO L279 CegarLoopForPetriNet]: 231 programPoint places, -37 predicate places. [2025-03-14 01:17:15,817 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 194 transitions, 398 flow [2025-03-14 01:17:15,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 194.0) internal successors, (388), 2 states have internal predecessors, (388), 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) [2025-03-14 01:17:15,818 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:15,818 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:17:15,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 01:17:15,819 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-03-14 01:17:15,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:15,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1099135860, now seen corresponding path program 1 times [2025-03-14 01:17:15,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:15,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579037816] [2025-03-14 01:17:15,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:15,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:15,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-14 01:17:15,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-14 01:17:15,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:15,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:17:15,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:17:15,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:17:15,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579037816] [2025-03-14 01:17:15,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579037816] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:17:15,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:17:15,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:17:15,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932083939] [2025-03-14 01:17:15,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:17:15,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:17:15,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:17:15,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:17:15,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:17:15,907 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 248 [2025-03-14 01:17:15,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 194 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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) [2025-03-14 01:17:15,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:17:15,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 248 [2025-03-14 01:17:15,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:17:16,062 INFO L124 PetriNetUnfolderBase]: 129/1334 cut-off events. [2025-03-14 01:17:16,062 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2025-03-14 01:17:16,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1566 conditions, 1334 events. 129/1334 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10070 event pairs, 34 based on Foata normal form. 0/1154 useless extension candidates. Maximal degree in co-relation 1561. Up to 124 conditions per place. [2025-03-14 01:17:16,074 INFO L140 encePairwiseOnDemand]: 240/248 looper letters, 31 selfloop transitions, 6 changer transitions 0/211 dead transitions. [2025-03-14 01:17:16,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 211 transitions, 511 flow [2025-03-14 01:17:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:17:16,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:17:16,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2025-03-14 01:17:16,077 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7983870967741935 [2025-03-14 01:17:16,077 INFO L175 Difference]: Start difference. First operand has 194 places, 194 transitions, 398 flow. Second operand 3 states and 594 transitions. [2025-03-14 01:17:16,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 211 transitions, 511 flow [2025-03-14 01:17:16,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 211 transitions, 511 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:17:16,082 INFO L231 Difference]: Finished difference. Result has 198 places, 200 transitions, 450 flow [2025-03-14 01:17:16,082 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=248, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=450, PETRI_PLACES=198, PETRI_TRANSITIONS=200} [2025-03-14 01:17:16,084 INFO L279 CegarLoopForPetriNet]: 231 programPoint places, -33 predicate places. [2025-03-14 01:17:16,085 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 200 transitions, 450 flow [2025-03-14 01:17:16,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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) [2025-03-14 01:17:16,085 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:16,085 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] [2025-03-14 01:17:16,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 01:17:16,086 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-03-14 01:17:16,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:16,086 INFO L85 PathProgramCache]: Analyzing trace with hash -363000803, now seen corresponding path program 1 times [2025-03-14 01:17:16,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:16,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742125213] [2025-03-14 01:17:16,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:16,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:16,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-14 01:17:16,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-14 01:17:16,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:16,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:17:16,101 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-14 01:17:16,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-14 01:17:16,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-14 01:17:16,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:16,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:17:16,116 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-14 01:17:16,117 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-14 01:17:16,117 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2025-03-14 01:17:16,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2025-03-14 01:17:16,119 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2025-03-14 01:17:16,120 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2025-03-14 01:17:16,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 01:17:16,121 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-14 01:17:16,121 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-14 01:17:16,121 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-14 01:17:16,161 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 01:17:16,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 335 places, 361 transitions, 740 flow [2025-03-14 01:17:16,212 INFO L124 PetriNetUnfolderBase]: 33/386 cut-off events. [2025-03-14 01:17:16,213 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-14 01:17:16,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 386 events. 33/386 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1614 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 345. Up to 4 conditions per place. [2025-03-14 01:17:16,217 INFO L82 GeneralOperation]: Start removeDead. Operand has 335 places, 361 transitions, 740 flow [2025-03-14 01:17:16,221 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 335 places, 361 transitions, 740 flow [2025-03-14 01:17:16,223 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:17:16,223 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;@222c570a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:17:16,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2025-03-14 01:17:16,225 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:17:16,227 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-03-14 01:17:16,227 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:17:16,227 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:16,227 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:17:16,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-03-14 01:17:16,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:16,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1740655648, now seen corresponding path program 1 times [2025-03-14 01:17:16,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:16,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662969101] [2025-03-14 01:17:16,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:16,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:16,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-14 01:17:16,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-14 01:17:16,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:16,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:17:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:17:16,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:17:16,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662969101] [2025-03-14 01:17:16,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662969101] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:17:16,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:17:16,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-14 01:17:16,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730603951] [2025-03-14 01:17:16,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:17:16,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 01:17:16,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:17:16,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 01:17:16,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 01:17:16,247 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 361 [2025-03-14 01:17:16,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 361 transitions, 740 flow. Second operand has 2 states, 2 states have (on average 280.0) internal successors, (560), 2 states have internal predecessors, (560), 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) [2025-03-14 01:17:16,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:17:16,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 361 [2025-03-14 01:17:16,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:17:16,748 INFO L124 PetriNetUnfolderBase]: 543/4813 cut-off events. [2025-03-14 01:17:16,749 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2025-03-14 01:17:16,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5630 conditions, 4813 events. 543/4813 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 50043 event pairs, 390 based on Foata normal form. 1115/5240 useless extension candidates. Maximal degree in co-relation 4571. Up to 649 conditions per place. [2025-03-14 01:17:16,799 INFO L140 encePairwiseOnDemand]: 306/361 looper letters, 18 selfloop transitions, 0 changer transitions 0/282 dead transitions. [2025-03-14 01:17:16,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 282 transitions, 618 flow [2025-03-14 01:17:16,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-14 01:17:16,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-14 01:17:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 631 transitions. [2025-03-14 01:17:16,804 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8739612188365651 [2025-03-14 01:17:16,804 INFO L175 Difference]: Start difference. First operand has 335 places, 361 transitions, 740 flow. Second operand 2 states and 631 transitions. [2025-03-14 01:17:16,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 282 transitions, 618 flow [2025-03-14 01:17:16,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 282 transitions, 616 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-14 01:17:16,810 INFO L231 Difference]: Finished difference. Result has 281 places, 282 transitions, 580 flow [2025-03-14 01:17:16,810 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=580, PETRI_PLACES=281, PETRI_TRANSITIONS=282} [2025-03-14 01:17:16,811 INFO L279 CegarLoopForPetriNet]: 335 programPoint places, -54 predicate places. [2025-03-14 01:17:16,811 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 282 transitions, 580 flow [2025-03-14 01:17:16,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 280.0) internal successors, (560), 2 states have internal predecessors, (560), 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) [2025-03-14 01:17:16,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:16,812 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:17:16,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-14 01:17:16,813 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-03-14 01:17:16,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:16,813 INFO L85 PathProgramCache]: Analyzing trace with hash 2027839268, now seen corresponding path program 1 times [2025-03-14 01:17:16,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:16,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068408670] [2025-03-14 01:17:16,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:16,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:16,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-14 01:17:16,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-14 01:17:16,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:16,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:17:16,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:17:16,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:17:16,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068408670] [2025-03-14 01:17:16,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068408670] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:17:16,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:17:16,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:17:16,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829435501] [2025-03-14 01:17:16,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:17:16,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:17:16,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:17:16,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:17:16,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:17:16,863 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 361 [2025-03-14 01:17:16,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 282 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 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) [2025-03-14 01:17:16,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:17:16,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 361 [2025-03-14 01:17:16,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:17:18,174 INFO L124 PetriNetUnfolderBase]: 2562/16048 cut-off events. [2025-03-14 01:17:18,175 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2025-03-14 01:17:18,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19779 conditions, 16048 events. 2562/16048 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 209189 event pairs, 852 based on Foata normal form. 0/13841 useless extension candidates. Maximal degree in co-relation 19773. Up to 2052 conditions per place. [2025-03-14 01:17:18,340 INFO L140 encePairwiseOnDemand]: 349/361 looper letters, 47 selfloop transitions, 9 changer transitions 0/308 dead transitions. [2025-03-14 01:17:18,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 308 transitions, 754 flow [2025-03-14 01:17:18,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:17:18,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:17:18,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 860 transitions. [2025-03-14 01:17:18,343 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7940904893813481 [2025-03-14 01:17:18,343 INFO L175 Difference]: Start difference. First operand has 281 places, 282 transitions, 580 flow. Second operand 3 states and 860 transitions. [2025-03-14 01:17:18,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 308 transitions, 754 flow [2025-03-14 01:17:18,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 308 transitions, 754 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:17:18,348 INFO L231 Difference]: Finished difference. Result has 285 places, 291 transitions, 658 flow [2025-03-14 01:17:18,349 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=285, PETRI_TRANSITIONS=291} [2025-03-14 01:17:18,349 INFO L279 CegarLoopForPetriNet]: 335 programPoint places, -50 predicate places. [2025-03-14 01:17:18,350 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 291 transitions, 658 flow [2025-03-14 01:17:18,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 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) [2025-03-14 01:17:18,351 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:18,351 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:17:18,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-14 01:17:18,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-03-14 01:17:18,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:18,351 INFO L85 PathProgramCache]: Analyzing trace with hash 590375528, now seen corresponding path program 1 times [2025-03-14 01:17:18,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:18,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224576163] [2025-03-14 01:17:18,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:18,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:18,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-14 01:17:18,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-14 01:17:18,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:18,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:17:18,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:17:18,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:17:18,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224576163] [2025-03-14 01:17:18,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224576163] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:17:18,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:17:18,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:17:18,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653920394] [2025-03-14 01:17:18,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:17:18,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:17:18,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:17:18,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:17:18,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:17:18,424 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 361 [2025-03-14 01:17:18,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 291 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 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) [2025-03-14 01:17:18,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:17:18,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 361 [2025-03-14 01:17:18,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:17:21,686 INFO L124 PetriNetUnfolderBase]: 7823/41592 cut-off events. [2025-03-14 01:17:21,686 INFO L125 PetriNetUnfolderBase]: For 1058/1063 co-relation queries the response was YES. [2025-03-14 01:17:21,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54053 conditions, 41592 events. 7823/41592 cut-off events. For 1058/1063 co-relation queries the response was YES. Maximal size of possible extension queue 1066. Compared 613558 event pairs, 5208 based on Foata normal form. 0/35744 useless extension candidates. Maximal degree in co-relation 54045. Up to 9527 conditions per place. [2025-03-14 01:17:22,024 INFO L140 encePairwiseOnDemand]: 349/361 looper letters, 47 selfloop transitions, 11 changer transitions 0/313 dead transitions. [2025-03-14 01:17:22,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 313 transitions, 828 flow [2025-03-14 01:17:22,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:17:22,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:17:22,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 842 transitions. [2025-03-14 01:17:22,027 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7774699907663897 [2025-03-14 01:17:22,027 INFO L175 Difference]: Start difference. First operand has 285 places, 291 transitions, 658 flow. Second operand 3 states and 842 transitions. [2025-03-14 01:17:22,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 313 transitions, 828 flow [2025-03-14 01:17:22,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 313 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:17:22,037 INFO L231 Difference]: Finished difference. Result has 287 places, 301 transitions, 726 flow [2025-03-14 01:17:22,037 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=726, PETRI_PLACES=287, PETRI_TRANSITIONS=301} [2025-03-14 01:17:22,038 INFO L279 CegarLoopForPetriNet]: 335 programPoint places, -48 predicate places. [2025-03-14 01:17:22,038 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 301 transitions, 726 flow [2025-03-14 01:17:22,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 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) [2025-03-14 01:17:22,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:22,039 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] [2025-03-14 01:17:22,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-14 01:17:22,039 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-03-14 01:17:22,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:22,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1107292778, now seen corresponding path program 1 times [2025-03-14 01:17:22,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:22,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214779590] [2025-03-14 01:17:22,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:22,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:22,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-14 01:17:22,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-14 01:17:22,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:22,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:17:22,052 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-14 01:17:22,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-14 01:17:22,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-14 01:17:22,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:22,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:17:22,069 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-14 01:17:22,070 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-14 01:17:22,071 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2025-03-14 01:17:22,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2025-03-14 01:17:22,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2025-03-14 01:17:22,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2025-03-14 01:17:22,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2025-03-14 01:17:22,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2025-03-14 01:17:22,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2025-03-14 01:17:22,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2025-03-14 01:17:22,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2025-03-14 01:17:22,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2025-03-14 01:17:22,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2025-03-14 01:17:22,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2025-03-14 01:17:22,072 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2025-03-14 01:17:22,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2025-03-14 01:17:22,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2025-03-14 01:17:22,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2025-03-14 01:17:22,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2025-03-14 01:17:22,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2025-03-14 01:17:22,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2025-03-14 01:17:22,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2025-03-14 01:17:22,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2025-03-14 01:17:22,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2025-03-14 01:17:22,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2025-03-14 01:17:22,076 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2025-03-14 01:17:22,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-14 01:17:22,076 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-14 01:17:22,076 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-14 01:17:22,076 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-03-14 01:17:22,129 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 01:17:22,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 474 transitions, 976 flow [2025-03-14 01:17:22,207 INFO L124 PetriNetUnfolderBase]: 44/508 cut-off events. [2025-03-14 01:17:22,208 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-03-14 01:17:22,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 508 events. 44/508 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2433 event pairs, 0 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 457. Up to 5 conditions per place. [2025-03-14 01:17:22,216 INFO L82 GeneralOperation]: Start removeDead. Operand has 439 places, 474 transitions, 976 flow [2025-03-14 01:17:22,223 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 439 places, 474 transitions, 976 flow [2025-03-14 01:17:22,224 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:17:22,224 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;@222c570a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:17:22,225 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2025-03-14 01:17:22,226 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:17:22,226 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-03-14 01:17:22,226 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:17:22,226 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:22,227 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:17:22,227 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-03-14 01:17:22,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:22,228 INFO L85 PathProgramCache]: Analyzing trace with hash -434973744, now seen corresponding path program 1 times [2025-03-14 01:17:22,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:22,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762222569] [2025-03-14 01:17:22,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:22,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:22,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-14 01:17:22,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-14 01:17:22,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:22,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:17:22,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:17:22,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:17:22,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762222569] [2025-03-14 01:17:22,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762222569] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:17:22,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:17:22,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-14 01:17:22,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895282875] [2025-03-14 01:17:22,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:17:22,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 01:17:22,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:17:22,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 01:17:22,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 01:17:22,242 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 474 [2025-03-14 01:17:22,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 474 transitions, 976 flow. Second operand has 2 states, 2 states have (on average 366.0) internal successors, (732), 2 states have internal predecessors, (732), 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) [2025-03-14 01:17:22,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:17:22,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 474 [2025-03-14 01:17:22,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:17:25,216 INFO L124 PetriNetUnfolderBase]: 4560/30334 cut-off events. [2025-03-14 01:17:25,216 INFO L125 PetriNetUnfolderBase]: For 2401/2401 co-relation queries the response was YES. [2025-03-14 01:17:25,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36768 conditions, 30334 events. 4560/30334 cut-off events. For 2401/2401 co-relation queries the response was YES. Maximal size of possible extension queue 756. Compared 437375 event pairs, 3630 based on Foata normal form. 8670/34766 useless extension candidates. Maximal degree in co-relation 29628. Up to 5185 conditions per place. [2025-03-14 01:17:25,523 INFO L140 encePairwiseOnDemand]: 401/474 looper letters, 24 selfloop transitions, 0 changer transitions 0/370 dead transitions. [2025-03-14 01:17:25,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 370 transitions, 816 flow [2025-03-14 01:17:25,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-14 01:17:25,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-14 01:17:25,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 827 transitions. [2025-03-14 01:17:25,525 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8723628691983122 [2025-03-14 01:17:25,525 INFO L175 Difference]: Start difference. First operand has 439 places, 474 transitions, 976 flow. Second operand 2 states and 827 transitions. [2025-03-14 01:17:25,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 370 transitions, 816 flow [2025-03-14 01:17:25,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 370 transitions, 810 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-03-14 01:17:25,530 INFO L231 Difference]: Finished difference. Result has 368 places, 370 transitions, 762 flow [2025-03-14 01:17:25,530 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=762, PETRI_PLACES=368, PETRI_TRANSITIONS=370} [2025-03-14 01:17:25,531 INFO L279 CegarLoopForPetriNet]: 439 programPoint places, -71 predicate places. [2025-03-14 01:17:25,531 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 370 transitions, 762 flow [2025-03-14 01:17:25,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 366.0) internal successors, (732), 2 states have internal predecessors, (732), 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) [2025-03-14 01:17:25,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:25,531 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:17:25,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-14 01:17:25,532 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-03-14 01:17:25,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:25,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1397881836, now seen corresponding path program 1 times [2025-03-14 01:17:25,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:25,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696232083] [2025-03-14 01:17:25,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:25,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:25,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-14 01:17:25,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-14 01:17:25,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:25,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:17:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:17:25,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:17:25,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696232083] [2025-03-14 01:17:25,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696232083] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:17:25,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:17:25,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:17:25,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837693534] [2025-03-14 01:17:25,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:17:25,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:17:25,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:17:25,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:17:25,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:17:25,579 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 474 [2025-03-14 01:17:25,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 370 transitions, 762 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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) [2025-03-14 01:17:25,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:17:25,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 474 [2025-03-14 01:17:25,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:17:43,122 INFO L124 PetriNetUnfolderBase]: 40707/185568 cut-off events. [2025-03-14 01:17:43,123 INFO L125 PetriNetUnfolderBase]: For 4012/4012 co-relation queries the response was YES. [2025-03-14 01:17:44,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239784 conditions, 185568 events. 40707/185568 cut-off events. For 4012/4012 co-relation queries the response was YES. Maximal size of possible extension queue 4914. Compared 3264819 event pairs, 15022 based on Foata normal form. 0/160343 useless extension candidates. Maximal degree in co-relation 239777. Up to 29309 conditions per place. [2025-03-14 01:17:45,678 INFO L140 encePairwiseOnDemand]: 458/474 looper letters, 63 selfloop transitions, 12 changer transitions 0/405 dead transitions. [2025-03-14 01:17:45,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 405 transitions, 997 flow [2025-03-14 01:17:45,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:17:45,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:17:45,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1126 transitions. [2025-03-14 01:17:45,681 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7918424753867792 [2025-03-14 01:17:45,681 INFO L175 Difference]: Start difference. First operand has 368 places, 370 transitions, 762 flow. Second operand 3 states and 1126 transitions. [2025-03-14 01:17:45,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 405 transitions, 997 flow [2025-03-14 01:17:45,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 405 transitions, 997 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:17:45,687 INFO L231 Difference]: Finished difference. Result has 372 places, 382 transitions, 866 flow [2025-03-14 01:17:45,688 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=866, PETRI_PLACES=372, PETRI_TRANSITIONS=382} [2025-03-14 01:17:45,689 INFO L279 CegarLoopForPetriNet]: 439 programPoint places, -67 predicate places. [2025-03-14 01:17:45,689 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 382 transitions, 866 flow [2025-03-14 01:17:45,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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) [2025-03-14 01:17:45,690 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:17:45,690 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 01:17:45,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-14 01:17:45,690 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-03-14 01:17:45,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:17:45,690 INFO L85 PathProgramCache]: Analyzing trace with hash 670740674, now seen corresponding path program 1 times [2025-03-14 01:17:45,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:17:45,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848035730] [2025-03-14 01:17:45,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:17:45,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:17:45,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-14 01:17:45,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-14 01:17:45,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:17:45,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:17:45,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:17:45,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:17:45,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848035730] [2025-03-14 01:17:45,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848035730] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:17:45,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:17:45,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:17:45,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181045238] [2025-03-14 01:17:45,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:17:45,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:17:45,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:17:45,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:17:45,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:17:45,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 474 [2025-03-14 01:17:45,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 382 transitions, 866 flow. Second operand has 3 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 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) [2025-03-14 01:17:45,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:17:45,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 474 [2025-03-14 01:17:45,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand