./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.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 82646a2180350347ed217a12e2836ec5fdce4b0371f5e0f7afa776fd6812fa0f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:37:08,380 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:37:08,480 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:37:08,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:37:08,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:37:08,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:37:08,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:37:08,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:37:08,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:37:08,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:37:08,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:37:08,523 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:37:08,524 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:37:08,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:37:08,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:37:08,526 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:37:08,526 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:37:08,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:37:08,530 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:37:08,530 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:37:08,530 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:37:08,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:37:08,531 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:37:08,532 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:37:08,532 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:37:08,532 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:37:08,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:37:08,533 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:37:08,533 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:37:08,533 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:37:08,533 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:37:08,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:37:08,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:37:08,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:37:08,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:37:08,534 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:37:08,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:37:08,535 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:37:08,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:37:08,536 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:37:08,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:37:08,537 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82646a2180350347ed217a12e2836ec5fdce4b0371f5e0f7afa776fd6812fa0f [2024-11-19 05:37:08,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:37:08,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:37:08,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:37:08,837 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:37:08,837 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:37:08,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2024-11-19 05:37:10,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:37:10,582 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:37:10,583 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2024-11-19 05:37:10,597 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b39b644c/f55ff4c4657f4437b55c741251c7205d/FLAG234f22334 [2024-11-19 05:37:10,878 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b39b644c/f55ff4c4657f4437b55c741251c7205d [2024-11-19 05:37:10,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:37:10,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:37:10,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:37:10,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:37:10,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:37:10,890 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:37:10" (1/1) ... [2024-11-19 05:37:10,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c2a259d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:10, skipping insertion in model container [2024-11-19 05:37:10,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:37:10" (1/1) ... [2024-11-19 05:37:10,956 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:37:11,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:37:11,424 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:37:11,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:37:11,590 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:37:11,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11 WrapperNode [2024-11-19 05:37:11,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:37:11,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:37:11,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:37:11,592 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:37:11,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11" (1/1) ... [2024-11-19 05:37:11,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11" (1/1) ... [2024-11-19 05:37:11,662 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 505 [2024-11-19 05:37:11,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:37:11,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:37:11,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:37:11,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:37:11,673 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11" (1/1) ... [2024-11-19 05:37:11,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11" (1/1) ... [2024-11-19 05:37:11,683 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11" (1/1) ... [2024-11-19 05:37:11,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11" (1/1) ... [2024-11-19 05:37:11,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11" (1/1) ... [2024-11-19 05:37:11,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11" (1/1) ... [2024-11-19 05:37:11,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11" (1/1) ... [2024-11-19 05:37:11,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11" (1/1) ... [2024-11-19 05:37:11,743 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:37:11,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:37:11,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:37:11,744 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:37:11,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11" (1/1) ... [2024-11-19 05:37:11,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:37:11,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:37:11,786 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) [2024-11-19 05:37:11,789 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 [2024-11-19 05:37:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 05:37:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:37:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 05:37:11,830 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 05:37:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 05:37:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 05:37:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-19 05:37:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-19 05:37:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-19 05:37:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-19 05:37:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:37:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 05:37:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:37:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:37:11,835 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:37:12,021 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:37:12,023 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:37:13,499 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:37:13,499 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:37:18,538 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:37:18,538 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 05:37:18,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:37:18 BoogieIcfgContainer [2024-11-19 05:37:18,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:37:18,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:37:18,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:37:18,546 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:37:18,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:37:10" (1/3) ... [2024-11-19 05:37:18,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57969d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:37:18, skipping insertion in model container [2024-11-19 05:37:18,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:37:11" (2/3) ... [2024-11-19 05:37:18,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57969d37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:37:18, skipping insertion in model container [2024-11-19 05:37:18,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:37:18" (3/3) ... [2024-11-19 05:37:18,550 INFO L112 eAbstractionObserver]: Analyzing ICFG mix037_power.oepc_pso.oepc_rmo.oepc.i [2024-11-19 05:37:18,568 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:37:18,569 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 284 error locations. [2024-11-19 05:37:18,571 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:37:18,883 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:37:18,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 428 places, 418 transitions, 852 flow [2024-11-19 05:37:19,135 INFO L124 PetriNetUnfolderBase]: 3/414 cut-off events. [2024-11-19 05:37:19,136 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:37:19,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 414 events. 3/414 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2206 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 375. Up to 2 conditions per place. [2024-11-19 05:37:19,160 INFO L82 GeneralOperation]: Start removeDead. Operand has 428 places, 418 transitions, 852 flow [2024-11-19 05:37:19,190 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 424 places, 414 transitions, 840 flow [2024-11-19 05:37:19,202 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:37:19,212 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;@149e3ec8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:37:19,212 INFO L334 AbstractCegarLoop]: Starting to check reachability of 534 error locations. [2024-11-19 05:37:19,223 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:37:19,224 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2024-11-19 05:37:19,224 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:37:19,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:37:19,225 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:37:19,226 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 530 more)] === [2024-11-19 05:37:19,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:37:19,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1740989030, now seen corresponding path program 1 times [2024-11-19 05:37:19,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:37:19,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118798339] [2024-11-19 05:37:19,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:37:19,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:37:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:37:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:37:19,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:37:19,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118798339] [2024-11-19 05:37:19,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118798339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:37:19,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:37:19,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 05:37:19,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534729447] [2024-11-19 05:37:19,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:37:19,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:37:19,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:37:19,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:37:19,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:37:19,646 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 418 [2024-11-19 05:37:19,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 414 transitions, 840 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) [2024-11-19 05:37:19,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:37:19,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 418 [2024-11-19 05:37:19,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:37:30,910 INFO L124 PetriNetUnfolderBase]: 10870/29691 cut-off events. [2024-11-19 05:37:30,911 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-11-19 05:37:31,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44534 conditions, 29691 events. 10870/29691 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1206. Compared 370200 event pairs, 10870 based on Foata normal form. 2568/30314 useless extension candidates. Maximal degree in co-relation 44480. Up to 14526 conditions per place. [2024-11-19 05:37:31,217 INFO L140 encePairwiseOnDemand]: 133/418 looper letters, 25 selfloop transitions, 0 changer transitions 0/127 dead transitions. [2024-11-19 05:37:31,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 127 transitions, 316 flow [2024-11-19 05:37:31,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:37:31,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 05:37:31,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 524 transitions. [2024-11-19 05:37:31,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6267942583732058 [2024-11-19 05:37:31,242 INFO L175 Difference]: Start difference. First operand has 424 places, 414 transitions, 840 flow. Second operand 2 states and 524 transitions. [2024-11-19 05:37:31,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 127 transitions, 316 flow [2024-11-19 05:37:31,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 127 transitions, 312 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 05:37:31,249 INFO L231 Difference]: Finished difference. Result has 137 places, 127 transitions, 262 flow [2024-11-19 05:37:31,252 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=262, PETRI_PLACES=137, PETRI_TRANSITIONS=127} [2024-11-19 05:37:31,259 INFO L277 CegarLoopForPetriNet]: 424 programPoint places, -287 predicate places. [2024-11-19 05:37:31,260 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 262 flow [2024-11-19 05:37:31,260 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) [2024-11-19 05:37:31,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:37:31,261 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:37:31,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:37:31,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 530 more)] === [2024-11-19 05:37:31,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:37:31,262 INFO L85 PathProgramCache]: Analyzing trace with hash -691096787, now seen corresponding path program 1 times [2024-11-19 05:37:31,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:37:31,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274419423] [2024-11-19 05:37:31,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:37:31,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:37:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:37:31,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:37:31,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:37:31,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274419423] [2024-11-19 05:37:31,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274419423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:37:31,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:37:31,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:37:31,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448016150] [2024-11-19 05:37:31,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:37:31,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:37:31,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:37:31,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:37:31,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:37:31,440 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 418 [2024-11-19 05:37:31,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2024-11-19 05:37:31,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:37:31,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 418 [2024-11-19 05:37:31,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:37:43,196 INFO L124 PetriNetUnfolderBase]: 16570/42944 cut-off events. [2024-11-19 05:37:43,196 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:37:43,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65234 conditions, 42944 events. 16570/42944 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1178. Compared 522184 event pairs, 5170 based on Foata normal form. 0/40266 useless extension candidates. Maximal degree in co-relation 65231. Up to 14900 conditions per place. [2024-11-19 05:37:43,515 INFO L140 encePairwiseOnDemand]: 416/418 looper letters, 44 selfloop transitions, 1 changer transitions 0/144 dead transitions. [2024-11-19 05:37:43,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 144 transitions, 386 flow [2024-11-19 05:37:43,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:37:43,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:37:43,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 358 transitions. [2024-11-19 05:37:43,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28548644338118023 [2024-11-19 05:37:43,519 INFO L175 Difference]: Start difference. First operand has 137 places, 127 transitions, 262 flow. Second operand 3 states and 358 transitions. [2024-11-19 05:37:43,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 144 transitions, 386 flow [2024-11-19 05:37:43,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 144 transitions, 386 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:37:43,526 INFO L231 Difference]: Finished difference. Result has 138 places, 126 transitions, 262 flow [2024-11-19 05:37:43,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=138, PETRI_TRANSITIONS=126} [2024-11-19 05:37:43,527 INFO L277 CegarLoopForPetriNet]: 424 programPoint places, -286 predicate places. [2024-11-19 05:37:43,528 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 126 transitions, 262 flow [2024-11-19 05:37:43,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2024-11-19 05:37:43,528 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:37:43,529 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:37:43,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:37:43,529 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 530 more)] === [2024-11-19 05:37:43,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:37:43,530 INFO L85 PathProgramCache]: Analyzing trace with hash 753989095, now seen corresponding path program 1 times [2024-11-19 05:37:43,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:37:43,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212983186] [2024-11-19 05:37:43,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:37:43,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:37:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:37:43,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:37:43,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:37:43,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212983186] [2024-11-19 05:37:43,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212983186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:37:43,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:37:43,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:37:43,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450460829] [2024-11-19 05:37:43,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:37:43,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:37:43,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:37:43,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:37:43,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:37:43,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 418 [2024-11-19 05:37:43,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 126 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 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) [2024-11-19 05:37:43,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:37:43,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 418 [2024-11-19 05:37:43,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand