./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d 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/mix023_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 b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:37:28,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:37:28,956 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:37:28,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:37:28,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:37:28,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:37:28,993 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:37:28,993 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:37:28,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:37:28,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:37:28,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:37:28,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:37:28,996 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:37:28,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:37:28,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:37:28,999 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:37:29,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:37:29,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:37:29,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:37:29,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:37:29,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:37:29,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:37:29,001 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:37:29,001 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:37:29,001 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:37:29,001 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:37:29,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:37:29,002 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:37:29,002 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:37:29,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:37:29,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:37:29,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:37:29,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:37:29,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:37:29,003 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:37:29,003 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:37:29,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:37:29,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:37:29,005 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:37:29,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:37:29,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:37:29,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 [2024-11-09 06:37:29,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:37:29,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:37:29,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:37:29,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:37:29,253 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:37:29,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2024-11-09 06:37:30,721 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:37:30,943 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:37:30,943 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2024-11-09 06:37:30,961 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/220a5aaad/ff065872669b4dfdb5282351673e3468/FLAGbaf4cc0e6 [2024-11-09 06:37:30,983 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/220a5aaad/ff065872669b4dfdb5282351673e3468 [2024-11-09 06:37:30,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:37:30,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:37:30,989 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:37:30,989 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:37:30,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:37:30,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:37:30" (1/1) ... [2024-11-09 06:37:30,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a3d3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:30, skipping insertion in model container [2024-11-09 06:37:30,997 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:37:30" (1/1) ... [2024-11-09 06:37:31,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:37:31,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:37:31,553 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:37:31,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:37:31,662 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:37:31,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31 WrapperNode [2024-11-09 06:37:31,663 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:37:31,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:37:31,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:37:31,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:37:31,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31" (1/1) ... [2024-11-09 06:37:31,705 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31" (1/1) ... [2024-11-09 06:37:31,746 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 510 [2024-11-09 06:37:31,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:37:31,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:37:31,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:37:31,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:37:31,760 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31" (1/1) ... [2024-11-09 06:37:31,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31" (1/1) ... [2024-11-09 06:37:31,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31" (1/1) ... [2024-11-09 06:37:31,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31" (1/1) ... [2024-11-09 06:37:31,783 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31" (1/1) ... [2024-11-09 06:37:31,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31" (1/1) ... [2024-11-09 06:37:31,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31" (1/1) ... [2024-11-09 06:37:31,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31" (1/1) ... [2024-11-09 06:37:31,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:37:31,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:37:31,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:37:31,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:37:31,818 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31" (1/1) ... [2024-11-09 06:37:31,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:37:31,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:37:31,872 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) [2024-11-09 06:37:31,875 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 [2024-11-09 06:37:31,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 06:37:31,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:37:31,920 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 06:37:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 06:37:31,921 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 06:37:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 06:37:31,921 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 06:37:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 06:37:31,921 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-09 06:37:31,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-09 06:37:31,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:37:31,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 06:37:31,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:37:31,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:37:31,926 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:37:32,167 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:37:32,170 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:37:33,447 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:37:33,447 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:37:37,790 WARN L1754 r$LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2024-11-09 06:37:37,969 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:37:37,975 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:37:37,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:37:37 BoogieIcfgContainer [2024-11-09 06:37:37,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:37:37,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:37:37,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:37:37,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:37:37,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:37:30" (1/3) ... [2024-11-09 06:37:37,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59de3d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:37:37, skipping insertion in model container [2024-11-09 06:37:37,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:37:31" (2/3) ... [2024-11-09 06:37:37,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59de3d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:37:37, skipping insertion in model container [2024-11-09 06:37:37,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:37:37" (3/3) ... [2024-11-09 06:37:37,989 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_power.oepc_pso.oepc_rmo.oepc.i [2024-11-09 06:37:38,020 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:37:38,021 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 285 error locations. [2024-11-09 06:37:38,021 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:37:38,322 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:37:38,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 428 places, 440 transitions, 896 flow [2024-11-09 06:37:38,513 INFO L124 PetriNetUnfolderBase]: 25/436 cut-off events. [2024-11-09 06:37:38,513 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:37:38,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 436 events. 25/436 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2219 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 398. Up to 2 conditions per place. [2024-11-09 06:37:38,532 INFO L82 GeneralOperation]: Start removeDead. Operand has 428 places, 440 transitions, 896 flow [2024-11-09 06:37:38,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 424 places, 436 transitions, 884 flow [2024-11-09 06:37:38,565 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:37:38,570 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;@6df46cbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:37:38,571 INFO L334 AbstractCegarLoop]: Starting to check reachability of 535 error locations. [2024-11-09 06:37:38,576 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:37:38,577 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2024-11-09 06:37:38,577 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:37:38,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:37:38,577 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] [2024-11-09 06:37:38,578 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 531 more)] === [2024-11-09 06:37:38,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:38,582 INFO L85 PathProgramCache]: Analyzing trace with hash -631066854, now seen corresponding path program 1 times [2024-11-09 06:37:38,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:37:38,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022541526] [2024-11-09 06:37:38,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:38,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:38,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:37:38,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:37:38,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022541526] [2024-11-09 06:37:38,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022541526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:38,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:38,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:37:38,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298010006] [2024-11-09 06:37:38,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:38,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:37:38,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:37:38,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:37:38,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:37:38,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 440 [2024-11-09 06:37:38,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 436 transitions, 884 flow. Second operand has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2024-11-09 06:37:38,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:37:38,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 440 [2024-11-09 06:37:38,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:37:50,427 INFO L124 PetriNetUnfolderBase]: 12029/31579 cut-off events. [2024-11-09 06:37:50,427 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-11-09 06:37:50,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47771 conditions, 31579 events. 12029/31579 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 1243. Compared 387060 event pairs, 11279 based on Foata normal form. 2642/31472 useless extension candidates. Maximal degree in co-relation 47718. Up to 15815 conditions per place. [2024-11-09 06:37:50,660 INFO L140 encePairwiseOnDemand]: 133/440 looper letters, 26 selfloop transitions, 0 changer transitions 0/127 dead transitions. [2024-11-09 06:37:50,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 127 transitions, 318 flow [2024-11-09 06:37:50,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:37:50,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:37:50,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 545 transitions. [2024-11-09 06:37:50,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6193181818181818 [2024-11-09 06:37:50,679 INFO L175 Difference]: Start difference. First operand has 424 places, 436 transitions, 884 flow. Second operand 2 states and 545 transitions. [2024-11-09 06:37:50,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 127 transitions, 318 flow [2024-11-09 06:37:50,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 127 transitions, 314 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 06:37:50,685 INFO L231 Difference]: Finished difference. Result has 136 places, 127 transitions, 262 flow [2024-11-09 06:37:50,687 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=440, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=135, 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=136, PETRI_TRANSITIONS=127} [2024-11-09 06:37:50,689 INFO L277 CegarLoopForPetriNet]: 424 programPoint places, -288 predicate places. [2024-11-09 06:37:50,690 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 127 transitions, 262 flow [2024-11-09 06:37:50,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2024-11-09 06:37:50,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:37:50,691 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] [2024-11-09 06:37:50,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:37:50,691 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 531 more)] === [2024-11-09 06:37:50,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:50,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1078170770, now seen corresponding path program 1 times [2024-11-09 06:37:50,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:37:50,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828985781] [2024-11-09 06:37:50,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:50,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:50,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:37:50,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:37:50,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828985781] [2024-11-09 06:37:50,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828985781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:50,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:50,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:37:50,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033427013] [2024-11-09 06:37:50,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:50,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:37:50,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:37:50,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:37:50,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:37:50,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 440 [2024-11-09 06:37:50,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 127 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2024-11-09 06:37:50,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:37:50,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 440 [2024-11-09 06:37:50,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:38:04,407 INFO L124 PetriNetUnfolderBase]: 18269/45537 cut-off events. [2024-11-09 06:38:04,408 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:38:04,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69766 conditions, 45537 events. 18269/45537 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1211. Compared 543516 event pairs, 5399 based on Foata normal form. 0/41673 useless extension candidates. Maximal degree in co-relation 69763. Up to 16080 conditions per place. [2024-11-09 06:38:04,694 INFO L140 encePairwiseOnDemand]: 438/440 looper letters, 46 selfloop transitions, 1 changer transitions 0/145 dead transitions. [2024-11-09 06:38:04,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 145 transitions, 392 flow [2024-11-09 06:38:04,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:38:04,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:38:04,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2024-11-09 06:38:04,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.27045454545454545 [2024-11-09 06:38:04,697 INFO L175 Difference]: Start difference. First operand has 136 places, 127 transitions, 262 flow. Second operand 3 states and 357 transitions. [2024-11-09 06:38:04,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 145 transitions, 392 flow [2024-11-09 06:38:04,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 145 transitions, 392 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:38:04,700 INFO L231 Difference]: Finished difference. Result has 137 places, 126 transitions, 262 flow [2024-11-09 06:38:04,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=440, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=135, 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=137, PETRI_TRANSITIONS=126} [2024-11-09 06:38:04,701 INFO L277 CegarLoopForPetriNet]: 424 programPoint places, -287 predicate places. [2024-11-09 06:38:04,701 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 126 transitions, 262 flow [2024-11-09 06:38:04,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2024-11-09 06:38:04,701 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:38:04,702 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] [2024-11-09 06:38:04,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:38:04,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 531 more)] === [2024-11-09 06:38:04,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:04,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1494372281, now seen corresponding path program 1 times [2024-11-09 06:38:04,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:38:04,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787460557] [2024-11-09 06:38:04,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:04,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:38:04,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:38:04,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787460557] [2024-11-09 06:38:04,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787460557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:04,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:04,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:38:04,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886072293] [2024-11-09 06:38:04,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:04,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:38:04,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:38:04,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:38:04,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:38:04,899 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 440 [2024-11-09 06:38:04,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 126 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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) [2024-11-09 06:38:04,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:38:04,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 440 [2024-11-09 06:38:04,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand