./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/mix026_power.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 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/mix026_power.opt_tso.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 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:11:09,128 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:11:09,196 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:11:09,205 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:11:09,206 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:11:09,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:11:09,229 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:11:09,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:11:09,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:11:09,232 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:11:09,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:11:09,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:11:09,233 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:11:09,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:11:09,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:11:09,235 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:11:09,236 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:11:09,236 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:11:09,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:11:09,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:11:09,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:11:09,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:11:09,241 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:11:09,241 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:11:09,242 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:11:09,242 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:11:09,242 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:11:09,242 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:11:09,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:11:09,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:11:09,244 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:11:09,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:11:09,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:11:09,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:11:09,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:11:09,246 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:11:09,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:11:09,246 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:11:09,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:11:09,246 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:11:09,247 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:11:09,247 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98d8aefe0e01e05845b14b6dd9685e093c9c5c7f8cc89a689bcb4822a773c420 [2024-10-24 15:11:09,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:11:09,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:11:09,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:11:09,549 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:11:09,550 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:11:09,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2024-10-24 15:11:11,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:11:11,324 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:11:11,324 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix026_power.opt_tso.opt.i [2024-10-24 15:11:11,340 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3afaf865/0c2ec06daa284efaaa01f89bab078ff9/FLAG33b84ad78 [2024-10-24 15:11:11,354 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3afaf865/0c2ec06daa284efaaa01f89bab078ff9 [2024-10-24 15:11:11,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:11:11,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:11:11,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:11:11,363 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:11:11,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:11:11,372 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:11" (1/1) ... [2024-10-24 15:11:11,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bcf50c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:11, skipping insertion in model container [2024-10-24 15:11:11,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:11:11" (1/1) ... [2024-10-24 15:11:11,430 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:11:11,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:11:11,872 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:11:11,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:11:12,006 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:11:12,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12 WrapperNode [2024-10-24 15:11:12,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:11:12,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:11:12,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:11:12,009 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:11:12,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12" (1/1) ... [2024-10-24 15:11:12,037 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12" (1/1) ... [2024-10-24 15:11:12,094 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 506 [2024-10-24 15:11:12,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:11:12,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:11:12,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:11:12,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:11:12,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12" (1/1) ... [2024-10-24 15:11:12,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12" (1/1) ... [2024-10-24 15:11:12,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12" (1/1) ... [2024-10-24 15:11:12,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12" (1/1) ... [2024-10-24 15:11:12,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12" (1/1) ... [2024-10-24 15:11:12,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12" (1/1) ... [2024-10-24 15:11:12,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12" (1/1) ... [2024-10-24 15:11:12,162 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12" (1/1) ... [2024-10-24 15:11:12,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:11:12,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:11:12,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:11:12,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:11:12,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12" (1/1) ... [2024-10-24 15:11:12,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:11:12,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:11:12,222 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) [2024-10-24 15:11:12,225 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 [2024-10-24 15:11:12,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 15:11:12,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:11:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 15:11:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 15:11:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 15:11:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 15:11:12,280 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 15:11:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 15:11:12,281 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 15:11:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 15:11:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:11:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 15:11:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:11:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:11:12,286 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:11:12,499 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:11:12,501 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:11:13,859 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:11:13,859 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:11:17,392 WARN L1752 r$LargeBlockEncoding]: Complex 2:68 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2024-10-24 15:11:17,810 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:11:17,810 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:11:17,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:17 BoogieIcfgContainer [2024-10-24 15:11:17,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:11:17,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:11:17,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:11:17,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:11:17,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:11:11" (1/3) ... [2024-10-24 15:11:17,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531a1802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:11:17, skipping insertion in model container [2024-10-24 15:11:17,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:11:12" (2/3) ... [2024-10-24 15:11:17,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531a1802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:11:17, skipping insertion in model container [2024-10-24 15:11:17,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:17" (3/3) ... [2024-10-24 15:11:17,823 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026_power.opt_tso.opt.i [2024-10-24 15:11:17,847 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:11:17,847 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 255 error locations. [2024-10-24 15:11:17,848 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:11:18,310 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:11:18,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 397 places, 455 transitions, 926 flow [2024-10-24 15:11:18,592 INFO L124 PetriNetUnfolderBase]: 71/451 cut-off events. [2024-10-24 15:11:18,592 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:11:18,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 464 conditions, 451 events. 71/451 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 2200 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 413. Up to 2 conditions per place. [2024-10-24 15:11:18,617 INFO L82 GeneralOperation]: Start removeDead. Operand has 397 places, 455 transitions, 926 flow [2024-10-24 15:11:18,659 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 393 places, 451 transitions, 914 flow [2024-10-24 15:11:18,669 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:11:18,676 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;@4c9d460f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:11:18,677 INFO L334 AbstractCegarLoop]: Starting to check reachability of 476 error locations. [2024-10-24 15:11:18,685 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:11:18,686 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2024-10-24 15:11:18,686 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:11:18,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:11:18,687 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] [2024-10-24 15:11:18,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 472 more)] === [2024-10-24 15:11:18,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:11:18,694 INFO L85 PathProgramCache]: Analyzing trace with hash 832755288, now seen corresponding path program 1 times [2024-10-24 15:11:18,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:11:18,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718112524] [2024-10-24 15:11:18,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:11:18,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:11:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:11:18,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:11:18,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:11:18,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718112524] [2024-10-24 15:11:18,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718112524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:11:18,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:11:18,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 15:11:18,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104134751] [2024-10-24 15:11:18,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:11:19,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 15:11:19,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:11:19,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 15:11:19,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 15:11:19,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 455 [2024-10-24 15:11:19,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 451 transitions, 914 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) [2024-10-24 15:11:19,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:11:19,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 455 [2024-10-24 15:11:19,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:11:32,847 INFO L124 PetriNetUnfolderBase]: 7941/21025 cut-off events. [2024-10-24 15:11:32,847 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2024-10-24 15:11:32,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31746 conditions, 21025 events. 7941/21025 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 846. Compared 245254 event pairs, 7310 based on Foata normal form. 1747/20766 useless extension candidates. Maximal degree in co-relation 31693. Up to 10466 conditions per place. [2024-10-24 15:11:33,017 INFO L140 encePairwiseOnDemand]: 132/455 looper letters, 24 selfloop transitions, 0 changer transitions 0/126 dead transitions. [2024-10-24 15:11:33,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 126 transitions, 312 flow [2024-10-24 15:11:33,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 15:11:33,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 15:11:33,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 561 transitions. [2024-10-24 15:11:33,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6164835164835165 [2024-10-24 15:11:33,040 INFO L175 Difference]: Start difference. First operand has 393 places, 451 transitions, 914 flow. Second operand 2 states and 561 transitions. [2024-10-24 15:11:33,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 126 transitions, 312 flow [2024-10-24 15:11:33,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 126 transitions, 308 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 15:11:33,049 INFO L231 Difference]: Finished difference. Result has 135 places, 126 transitions, 260 flow [2024-10-24 15:11:33,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=455, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=260, PETRI_PLACES=135, PETRI_TRANSITIONS=126} [2024-10-24 15:11:33,055 INFO L277 CegarLoopForPetriNet]: 393 programPoint places, -258 predicate places. [2024-10-24 15:11:33,056 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 126 transitions, 260 flow [2024-10-24 15:11:33,057 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) [2024-10-24 15:11:33,057 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:11:33,057 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] [2024-10-24 15:11:33,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:11:33,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 472 more)] === [2024-10-24 15:11:33,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:11:33,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1428541418, now seen corresponding path program 1 times [2024-10-24 15:11:33,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:11:33,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056272216] [2024-10-24 15:11:33,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:11:33,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:11:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:11:33,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:11:33,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:11:33,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056272216] [2024-10-24 15:11:33,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056272216] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:11:33,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:11:33,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:11:33,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128775893] [2024-10-24 15:11:33,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:11:33,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:11:33,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:11:33,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:11:33,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:11:33,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 455 [2024-10-24 15:11:33,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 126 transitions, 260 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) [2024-10-24 15:11:33,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:11:33,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 455 [2024-10-24 15:11:33,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:11:49,484 INFO L124 PetriNetUnfolderBase]: 12061/30284 cut-off events. [2024-10-24 15:11:49,485 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:11:49,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46322 conditions, 30284 events. 12061/30284 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 344484 event pairs, 3490 based on Foata normal form. 0/27506 useless extension candidates. Maximal degree in co-relation 46319. Up to 10640 conditions per place. [2024-10-24 15:11:49,682 INFO L140 encePairwiseOnDemand]: 453/455 looper letters, 42 selfloop transitions, 1 changer transitions 0/142 dead transitions. [2024-10-24 15:11:49,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 142 transitions, 378 flow [2024-10-24 15:11:49,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:11:49,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:11:49,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-10-24 15:11:49,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2608058608058608 [2024-10-24 15:11:49,685 INFO L175 Difference]: Start difference. First operand has 135 places, 126 transitions, 260 flow. Second operand 3 states and 356 transitions. [2024-10-24 15:11:49,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 142 transitions, 378 flow [2024-10-24 15:11:49,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 142 transitions, 378 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:11:49,689 INFO L231 Difference]: Finished difference. Result has 136 places, 125 transitions, 260 flow [2024-10-24 15:11:49,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=455, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=136, PETRI_TRANSITIONS=125} [2024-10-24 15:11:49,691 INFO L277 CegarLoopForPetriNet]: 393 programPoint places, -257 predicate places. [2024-10-24 15:11:49,691 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 125 transitions, 260 flow [2024-10-24 15:11:49,691 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) [2024-10-24 15:11:49,692 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:11:49,692 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] [2024-10-24 15:11:49,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:11:49,693 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 472 more)] === [2024-10-24 15:11:49,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:11:49,694 INFO L85 PathProgramCache]: Analyzing trace with hash 348002268, now seen corresponding path program 1 times [2024-10-24 15:11:49,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:11:49,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673511336] [2024-10-24 15:11:49,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:11:49,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:11:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:11:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:11:49,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:11:49,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673511336] [2024-10-24 15:11:49,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673511336] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:11:49,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:11:49,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:11:49,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510216333] [2024-10-24 15:11:49,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:11:49,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:11:49,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:11:49,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:11:49,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:11:49,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 455 [2024-10-24 15:11:49,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 125 transitions, 260 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) [2024-10-24 15:11:49,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:11:49,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 455 [2024-10-24 15:11:49,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand