./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.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 9565dcbef2b519c6326563c41ab6633c2e0b59b7d9ee2c8626de0cd3767b77b1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:37:53,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:37:53,243 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:37:53,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:37:53,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:37:53,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:37:53,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:37:53,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:37:53,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:37:53,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:37:53,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:37:53,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:37:53,286 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:37:53,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:37:53,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:37:53,287 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:37:53,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:37:53,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:37:53,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:37:53,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:37:53,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:37:53,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:37:53,293 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:37:53,293 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:37:53,293 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:37:53,293 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:37:53,293 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:37:53,293 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:37:53,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:37:53,294 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:37:53,294 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:37:53,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:37:53,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:37:53,294 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:37:53,295 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:37:53,295 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:37:53,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:37:53,295 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:37:53,295 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:37:53,295 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:37:53,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:37:53,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9565dcbef2b519c6326563c41ab6633c2e0b59b7d9ee2c8626de0cd3767b77b1 [2024-10-13 09:37:53,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:37:53,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:37:53,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:37:53,617 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:37:53,621 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:37:53,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i [2024-10-13 09:37:55,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:37:55,272 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:37:55,272 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_power.opt_pso.opt_rmo.opt.i [2024-10-13 09:37:55,288 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d35893b06/de70ef8febc4460ea6095d5f65a86ddd/FLAGe37f019dc [2024-10-13 09:37:55,308 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d35893b06/de70ef8febc4460ea6095d5f65a86ddd [2024-10-13 09:37:55,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:37:55,313 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:37:55,315 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:37:55,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:37:55,320 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:37:55,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:55,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46cf25eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55, skipping insertion in model container [2024-10-13 09:37:55,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:55,361 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:37:55,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:37:55,775 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:37:55,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:37:55,928 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:37:55,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55 WrapperNode [2024-10-13 09:37:55,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:37:55,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:37:55,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:37:55,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:37:55,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:55,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:55,994 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 951 [2024-10-13 09:37:55,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:37:55,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:37:55,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:37:55,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:37:56,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:56,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:56,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:56,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:56,032 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:56,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:56,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:56,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:56,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:37:56,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:37:56,054 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:37:56,054 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:37:56,055 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55" (1/1) ... [2024-10-13 09:37:56,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:37:56,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:37:56,105 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) [2024-10-13 09:37:56,110 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 [2024-10-13 09:37:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 09:37:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:37:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-13 09:37:56,173 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-13 09:37:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-13 09:37:56,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-13 09:37:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-13 09:37:56,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-13 09:37:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-13 09:37:56,175 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-13 09:37:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:37:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 09:37:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:37:56,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:37:56,178 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:37:56,356 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:37:56,357 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:37:57,546 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:37:57,546 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:38:01,541 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:38:01,541 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 09:38:01,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:38:01 BoogieIcfgContainer [2024-10-13 09:38:01,541 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:38:01,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:38:01,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:38:01,545 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:38:01,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:37:55" (1/3) ... [2024-10-13 09:38:01,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a012b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:38:01, skipping insertion in model container [2024-10-13 09:38:01,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:55" (2/3) ... [2024-10-13 09:38:01,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a012b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:38:01, skipping insertion in model container [2024-10-13 09:38:01,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:38:01" (3/3) ... [2024-10-13 09:38:01,547 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_power.opt_pso.opt_rmo.opt.i [2024-10-13 09:38:01,565 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:38:01,566 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 253 error locations. [2024-10-13 09:38:01,566 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:38:01,717 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:38:01,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 393 places, 383 transitions, 782 flow [2024-10-13 09:38:01,854 INFO L124 PetriNetUnfolderBase]: 3/379 cut-off events. [2024-10-13 09:38:01,855 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:38:01,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 379 events. 3/379 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 2030 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 343. Up to 2 conditions per place. [2024-10-13 09:38:01,869 INFO L82 GeneralOperation]: Start removeDead. Operand has 393 places, 383 transitions, 782 flow [2024-10-13 09:38:01,887 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 389 places, 379 transitions, 770 flow [2024-10-13 09:38:01,894 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:38:01,900 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;@16a68bd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:38:01,900 INFO L334 AbstractCegarLoop]: Starting to check reachability of 378 error locations. [2024-10-13 09:38:01,906 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:38:01,906 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2024-10-13 09:38:01,906 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:38:01,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:38:01,907 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] [2024-10-13 09:38:01,907 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 374 more)] === [2024-10-13 09:38:01,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:38:01,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1325555352, now seen corresponding path program 1 times [2024-10-13 09:38:01,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:38:01,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140222879] [2024-10-13 09:38:01,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:38:01,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:38:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:38:02,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:38:02,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:38:02,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140222879] [2024-10-13 09:38:02,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140222879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:38:02,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:38:02,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:38:02,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622624597] [2024-10-13 09:38:02,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:38:02,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:38:02,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:38:02,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:38:02,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:38:02,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 383 [2024-10-13 09:38:02,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 379 transitions, 770 flow. Second operand has 2 states, 2 states have (on average 106.0) internal successors, (212), 2 states have internal predecessors, (212), 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) [2024-10-13 09:38:02,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:38:02,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 383 [2024-10-13 09:38:02,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:38:14,265 INFO L124 PetriNetUnfolderBase]: 7310/20392 cut-off events. [2024-10-13 09:38:14,266 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2024-10-13 09:38:14,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30482 conditions, 20392 events. 7310/20392 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 846. Compared 244420 event pairs, 7310 based on Foata normal form. 1747/20764 useless extension candidates. Maximal degree in co-relation 30431. Up to 9835 conditions per place. [2024-10-13 09:38:14,413 INFO L140 encePairwiseOnDemand]: 129/383 looper letters, 23 selfloop transitions, 0 changer transitions 0/123 dead transitions. [2024-10-13 09:38:14,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 123 transitions, 304 flow [2024-10-13 09:38:14,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:38:14,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:38:14,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 487 transitions. [2024-10-13 09:38:14,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6357702349869452 [2024-10-13 09:38:14,434 INFO L175 Difference]: Start difference. First operand has 389 places, 379 transitions, 770 flow. Second operand 2 states and 487 transitions. [2024-10-13 09:38:14,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 123 transitions, 304 flow [2024-10-13 09:38:14,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 123 transitions, 300 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 09:38:14,439 INFO L231 Difference]: Finished difference. Result has 133 places, 123 transitions, 254 flow [2024-10-13 09:38:14,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=254, PETRI_PLACES=133, PETRI_TRANSITIONS=123} [2024-10-13 09:38:14,446 INFO L277 CegarLoopForPetriNet]: 389 programPoint places, -256 predicate places. [2024-10-13 09:38:14,446 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 123 transitions, 254 flow [2024-10-13 09:38:14,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 106.0) internal successors, (212), 2 states have internal predecessors, (212), 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) [2024-10-13 09:38:14,447 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:38:14,447 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] [2024-10-13 09:38:14,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:38:14,447 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 374 more)] === [2024-10-13 09:38:14,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:38:14,449 INFO L85 PathProgramCache]: Analyzing trace with hash 859052447, now seen corresponding path program 1 times [2024-10-13 09:38:14,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:38:14,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905300700] [2024-10-13 09:38:14,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:38:14,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:38:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:38:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:38:14,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:38:14,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905300700] [2024-10-13 09:38:14,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905300700] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:38:14,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:38:14,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:38:14,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869861807] [2024-10-13 09:38:14,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:38:14,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:38:14,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:38:14,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:38:14,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:38:14,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 383 [2024-10-13 09:38:14,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 123 transitions, 254 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) [2024-10-13 09:38:14,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:38:14,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 383 [2024-10-13 09:38:14,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:38:26,490 INFO L124 PetriNetUnfolderBase]: 11130/29351 cut-off events. [2024-10-13 09:38:26,490 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:38:26,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44458 conditions, 29351 events. 11130/29351 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 343361 event pairs, 3490 based on Foata normal form. 0/27504 useless extension candidates. Maximal degree in co-relation 44455. Up to 10040 conditions per place. [2024-10-13 09:38:26,651 INFO L140 encePairwiseOnDemand]: 381/383 looper letters, 40 selfloop transitions, 1 changer transitions 0/138 dead transitions. [2024-10-13 09:38:26,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 138 transitions, 366 flow [2024-10-13 09:38:26,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:38:26,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:38:26,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-10-13 09:38:26,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3028720626631854 [2024-10-13 09:38:26,655 INFO L175 Difference]: Start difference. First operand has 133 places, 123 transitions, 254 flow. Second operand 3 states and 348 transitions. [2024-10-13 09:38:26,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 138 transitions, 366 flow [2024-10-13 09:38:26,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 138 transitions, 366 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:38:26,658 INFO L231 Difference]: Finished difference. Result has 134 places, 122 transitions, 254 flow [2024-10-13 09:38:26,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=383, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=134, PETRI_TRANSITIONS=122} [2024-10-13 09:38:26,659 INFO L277 CegarLoopForPetriNet]: 389 programPoint places, -255 predicate places. [2024-10-13 09:38:26,659 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 122 transitions, 254 flow [2024-10-13 09:38:26,659 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) [2024-10-13 09:38:26,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:38:26,660 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] [2024-10-13 09:38:26,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:38:26,660 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr131ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 374 more)] === [2024-10-13 09:38:26,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:38:26,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1412131073, now seen corresponding path program 1 times [2024-10-13 09:38:26,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:38:26,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070149498] [2024-10-13 09:38:26,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:38:26,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:38:26,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:38:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:38:26,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:38:26,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070149498] [2024-10-13 09:38:26,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070149498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:38:26,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:38:26,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:38:26,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546561410] [2024-10-13 09:38:26,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:38:26,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:38:26,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:38:26,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:38:26,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:38:26,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 383 [2024-10-13 09:38:26,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 122 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2024-10-13 09:38:26,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:38:26,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 383 [2024-10-13 09:38:26,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand