./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/mix047_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 dcc3fad0768415d67ba0b5226238487b935d262c55e83ab1790d239680fbb73d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:56:40,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:56:40,898 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 16:56:40,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:56:40,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:56:40,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:56:40,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:56:40,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:56:40,934 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:56:40,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:56:40,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:56:40,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:56:40,938 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:56:40,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:56:40,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:56:40,939 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:56:40,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:56:40,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:56:40,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:56:40,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:56:40,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:56:40,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:56:40,942 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 16:56:40,943 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:56:40,943 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 16:56:40,943 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:56:40,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:56:40,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:56:40,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:56:40,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:56:40,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:56:40,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:56:40,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:56:40,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:56:40,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:56:40,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:56:40,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:56:40,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:56:40,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:56:40,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:56:40,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:56:40,949 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcc3fad0768415d67ba0b5226238487b935d262c55e83ab1790d239680fbb73d [2024-10-11 16:56:41,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:56:41,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:56:41,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:56:41,279 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:56:41,282 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:56:41,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2024-10-11 16:56:42,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:56:42,971 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:56:42,973 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix047_power.oepc_pso.oepc_rmo.oepc.i [2024-10-11 16:56:42,990 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d10daab44/e2950eecbaf24f61a3defcba258efcc1/FLAG4e2e185d4 [2024-10-11 16:56:43,006 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d10daab44/e2950eecbaf24f61a3defcba258efcc1 [2024-10-11 16:56:43,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:56:43,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:56:43,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:56:43,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:56:43,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:56:43,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:43,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b6cb53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43, skipping insertion in model container [2024-10-11 16:56:43,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:43,070 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:56:43,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:56:43,575 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:56:43,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:56:43,804 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:56:43,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43 WrapperNode [2024-10-11 16:56:43,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:56:43,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:56:43,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:56:43,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:56:43,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:43,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:43,897 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 503 [2024-10-11 16:56:43,898 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:56:43,899 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:56:43,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:56:43,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:56:43,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:43,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:43,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:43,924 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:43,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:43,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:43,964 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:43,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:43,981 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:56:43,982 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:56:43,982 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:56:43,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:56:43,983 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43" (1/1) ... [2024-10-11 16:56:44,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:56:44,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:56:44,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 16:56:44,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 16:56:44,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 16:56:44,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:56:44,100 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 16:56:44,100 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 16:56:44,100 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 16:56:44,100 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 16:56:44,100 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 16:56:44,100 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 16:56:44,101 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-11 16:56:44,101 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-11 16:56:44,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 16:56:44,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 16:56:44,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:56:44,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:56:44,105 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 16:56:44,338 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:56:44,343 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:56:45,847 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 16:56:45,848 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:56:51,192 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:56:51,194 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 16:56:51,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:56:51 BoogieIcfgContainer [2024-10-11 16:56:51,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:56:51,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:56:51,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:56:51,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:56:51,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:56:43" (1/3) ... [2024-10-11 16:56:51,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e92e801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:56:51, skipping insertion in model container [2024-10-11 16:56:51,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:56:43" (2/3) ... [2024-10-11 16:56:51,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e92e801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:56:51, skipping insertion in model container [2024-10-11 16:56:51,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:56:51" (3/3) ... [2024-10-11 16:56:51,206 INFO L112 eAbstractionObserver]: Analyzing ICFG mix047_power.oepc_pso.oepc_rmo.oepc.i [2024-10-11 16:56:51,223 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:56:51,223 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 282 error locations. [2024-10-11 16:56:51,224 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 16:56:51,488 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:56:51,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 424 places, 414 transitions, 844 flow [2024-10-11 16:56:51,739 INFO L124 PetriNetUnfolderBase]: 3/410 cut-off events. [2024-10-11 16:56:51,739 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:56:51,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423 conditions, 410 events. 3/410 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2202 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 373. Up to 2 conditions per place. [2024-10-11 16:56:51,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 424 places, 414 transitions, 844 flow [2024-10-11 16:56:51,790 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 420 places, 410 transitions, 832 flow [2024-10-11 16:56:51,800 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:56:51,809 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;@576ac0c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:56:51,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 530 error locations. [2024-10-11 16:56:51,824 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:56:51,824 INFO L124 PetriNetUnfolderBase]: 0/45 cut-off events. [2024-10-11 16:56:51,824 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:56:51,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:56:51,825 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] [2024-10-11 16:56:51,826 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2024-10-11 16:56:51,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:56:51,831 INFO L85 PathProgramCache]: Analyzing trace with hash -14441754, now seen corresponding path program 1 times [2024-10-11 16:56:51,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:56:51,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549172421] [2024-10-11 16:56:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:56:51,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:56:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:56:52,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:56:52,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:56:52,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549172421] [2024-10-11 16:56:52,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549172421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:56:52,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:56:52,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:56:52,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873262581] [2024-10-11 16:56:52,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:56:52,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:56:52,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:56:52,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:56:52,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:56:52,160 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 414 [2024-10-11 16:56:52,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 410 transitions, 832 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) [2024-10-11 16:56:52,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:56:52,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 414 [2024-10-11 16:56:52,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:57:03,644 INFO L124 PetriNetUnfolderBase]: 10870/29689 cut-off events. [2024-10-11 16:57:03,644 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2024-10-11 16:57:03,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44532 conditions, 29689 events. 10870/29689 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1206. Compared 369748 event pairs, 10870 based on Foata normal form. 2568/30312 useless extension candidates. Maximal degree in co-relation 44480. Up to 14526 conditions per place. [2024-10-11 16:57:03,937 INFO L140 encePairwiseOnDemand]: 131/414 looper letters, 25 selfloop transitions, 0 changer transitions 0/125 dead transitions. [2024-10-11 16:57:03,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 125 transitions, 312 flow [2024-10-11 16:57:03,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 16:57:03,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 16:57:03,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 518 transitions. [2024-10-11 16:57:03,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6256038647342995 [2024-10-11 16:57:03,961 INFO L175 Difference]: Start difference. First operand has 420 places, 410 transitions, 832 flow. Second operand 2 states and 518 transitions. [2024-10-11 16:57:03,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 125 transitions, 312 flow [2024-10-11 16:57:03,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 125 transitions, 308 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 16:57:03,972 INFO L231 Difference]: Finished difference. Result has 135 places, 125 transitions, 258 flow [2024-10-11 16:57:03,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=258, PETRI_PLACES=135, PETRI_TRANSITIONS=125} [2024-10-11 16:57:03,980 INFO L277 CegarLoopForPetriNet]: 420 programPoint places, -285 predicate places. [2024-10-11 16:57:03,981 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 258 flow [2024-10-11 16:57:03,981 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) [2024-10-11 16:57:03,982 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:57:03,982 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] [2024-10-11 16:57:03,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:57:03,982 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2024-10-11 16:57:03,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:57:03,983 INFO L85 PathProgramCache]: Analyzing trace with hash -482735817, now seen corresponding path program 1 times [2024-10-11 16:57:03,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:57:03,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407880862] [2024-10-11 16:57:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:57:03,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:57:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:57:04,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:57:04,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:57:04,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407880862] [2024-10-11 16:57:04,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407880862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:57:04,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:57:04,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:57:04,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677495821] [2024-10-11 16:57:04,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:57:04,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:57:04,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:57:04,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:57:04,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:57:04,445 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 414 [2024-10-11 16:57:04,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 258 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) [2024-10-11 16:57:04,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:57:04,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 414 [2024-10-11 16:57:04,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:57:17,396 INFO L124 PetriNetUnfolderBase]: 16570/42942 cut-off events. [2024-10-11 16:57:17,396 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:57:17,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65232 conditions, 42942 events. 16570/42942 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1178. Compared 521499 event pairs, 5170 based on Foata normal form. 0/40264 useless extension candidates. Maximal degree in co-relation 65229. Up to 14900 conditions per place. [2024-10-11 16:57:17,697 INFO L140 encePairwiseOnDemand]: 412/414 looper letters, 44 selfloop transitions, 1 changer transitions 0/142 dead transitions. [2024-10-11 16:57:17,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 142 transitions, 382 flow [2024-10-11 16:57:17,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:57:17,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:57:17,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 352 transitions. [2024-10-11 16:57:17,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2834138486312399 [2024-10-11 16:57:17,701 INFO L175 Difference]: Start difference. First operand has 135 places, 125 transitions, 258 flow. Second operand 3 states and 352 transitions. [2024-10-11 16:57:17,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 142 transitions, 382 flow [2024-10-11 16:57:17,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 142 transitions, 382 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:57:17,705 INFO L231 Difference]: Finished difference. Result has 136 places, 124 transitions, 258 flow [2024-10-11 16:57:17,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=414, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=136, PETRI_TRANSITIONS=124} [2024-10-11 16:57:17,707 INFO L277 CegarLoopForPetriNet]: 420 programPoint places, -284 predicate places. [2024-10-11 16:57:17,707 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 124 transitions, 258 flow [2024-10-11 16:57:17,708 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) [2024-10-11 16:57:17,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:57:17,708 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] [2024-10-11 16:57:17,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 16:57:17,709 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 526 more)] === [2024-10-11 16:57:17,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:57:17,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1842606147, now seen corresponding path program 1 times [2024-10-11 16:57:17,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:57:17,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547856501] [2024-10-11 16:57:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:57:17,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:57:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:57:17,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:57:17,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:57:17,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547856501] [2024-10-11 16:57:17,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547856501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:57:17,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:57:17,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:57:17,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148166522] [2024-10-11 16:57:17,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:57:17,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:57:17,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:57:17,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:57:17,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:57:17,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 414 [2024-10-11 16:57:17,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 124 transitions, 258 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) [2024-10-11 16:57:17,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:57:17,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 414 [2024-10-11 16:57:17,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand