./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/mix021.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix021.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 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:36:58,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:36:59,053 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:36:59,059 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:36:59,059 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:36:59,075 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:36:59,076 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:36:59,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:36:59,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:36:59,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:36:59,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:36:59,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:36:59,079 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:36:59,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:36:59,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:36:59,080 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:36:59,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:36:59,081 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:36:59,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:36:59,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:36:59,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:36:59,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:36:59,086 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:36:59,087 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:36:59,087 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:36:59,087 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:36:59,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:36:59,088 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:36:59,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:36:59,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:36:59,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:36:59,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:36:59,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:36:59,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:36:59,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:36:59,090 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:36:59,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:36:59,090 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:36:59,090 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:36:59,091 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:36:59,091 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:36:59,091 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db [2024-10-13 09:36:59,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:36:59,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:36:59,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:36:59,369 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:36:59,369 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:36:59,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix021.opt.i [2024-10-13 09:37:00,877 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:37:01,065 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:37:01,065 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix021.opt.i [2024-10-13 09:37:01,085 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a555cd6d4/2abd9cdf60fc4d88acb5aa1d161c3bed/FLAG16484f62d [2024-10-13 09:37:01,106 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a555cd6d4/2abd9cdf60fc4d88acb5aa1d161c3bed [2024-10-13 09:37:01,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:37:01,110 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:37:01,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:37:01,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:37:01,118 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:37:01,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8da02da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01, skipping insertion in model container [2024-10-13 09:37:01,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,183 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:37:01,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:37:01,628 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:37:01,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:37:01,769 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:37:01,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01 WrapperNode [2024-10-13 09:37:01,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:37:01,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:37:01,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:37:01,771 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:37:01,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,800 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,851 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 963 [2024-10-13 09:37:01,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:37:01,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:37:01,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:37:01,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:37:01,861 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,866 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,901 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:37:01,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:37:01,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:37:01,908 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:37:01,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01" (1/1) ... [2024-10-13 09:37:01,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:37:01,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:37:01,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:37:01,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:37:01,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 09:37:01,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:37:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-13 09:37:01,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-13 09:37:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-13 09:37:01,989 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-13 09:37:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-13 09:37:01,990 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-13 09:37:01,990 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-13 09:37:01,991 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-13 09:37:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:37:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 09:37:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:37:01,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:37:01,995 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:37:02,180 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:37:02,182 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:37:03,408 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:37:03,408 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:37:08,878 WARN L1752 r$LargeBlockEncoding]: Complex 2:6 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2024-10-13 09:37:08,905 WARN L1752 r$LargeBlockEncoding]: Complex 3:55 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2024-10-13 09:37:09,499 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:37:09,499 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 09:37:09,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:37:09 BoogieIcfgContainer [2024-10-13 09:37:09,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:37:09,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:37:09,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:37:09,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:37:09,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:37:01" (1/3) ... [2024-10-13 09:37:09,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d4a3f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:37:09, skipping insertion in model container [2024-10-13 09:37:09,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:37:01" (2/3) ... [2024-10-13 09:37:09,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d4a3f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:37:09, skipping insertion in model container [2024-10-13 09:37:09,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:37:09" (3/3) ... [2024-10-13 09:37:09,625 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021.opt.i [2024-10-13 09:37:09,646 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:37:09,647 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 292 error locations. [2024-10-13 09:37:09,647 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:37:10,031 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:37:10,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 433 places, 538 transitions, 1092 flow [2024-10-13 09:37:10,543 INFO L124 PetriNetUnfolderBase]: 118/534 cut-off events. [2024-10-13 09:37:10,547 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:37:10,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 534 events. 118/534 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2738 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 497. Up to 3 conditions per place. [2024-10-13 09:37:10,591 INFO L82 GeneralOperation]: Start removeDead. Operand has 433 places, 538 transitions, 1092 flow [2024-10-13 09:37:10,713 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 534 transitions, 1080 flow [2024-10-13 09:37:10,720 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:37:10,725 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;@20f9b8b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:37:10,726 INFO L334 AbstractCegarLoop]: Starting to check reachability of 550 error locations. [2024-10-13 09:37:10,731 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:37:10,732 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2024-10-13 09:37:10,732 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:37:10,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:37:10,733 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] [2024-10-13 09:37:10,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 546 more)] === [2024-10-13 09:37:10,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:37:10,737 INFO L85 PathProgramCache]: Analyzing trace with hash -679101341, now seen corresponding path program 1 times [2024-10-13 09:37:10,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:37:10,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650249837] [2024-10-13 09:37:10,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:37:10,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:37:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:37:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:37:10,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:37:10,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650249837] [2024-10-13 09:37:10,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650249837] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:37:10,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:37:10,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:37:10,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920672831] [2024-10-13 09:37:10,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:37:10,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:37:10,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:37:10,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:37:10,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:37:11,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 538 [2024-10-13 09:37:11,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 534 transitions, 1080 flow. Second operand has 2 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:37:11,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:37:11,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 538 [2024-10-13 09:37:11,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:37:21,680 INFO L124 PetriNetUnfolderBase]: 5036/13611 cut-off events. [2024-10-13 09:37:21,681 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-10-13 09:37:21,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20443 conditions, 13611 events. 5036/13611 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 148219 event pairs, 4524 based on Foata normal form. 1107/13294 useless extension candidates. Maximal degree in co-relation 20391. Up to 6657 conditions per place. [2024-10-13 09:37:21,776 INFO L140 encePairwiseOnDemand]: 132/538 looper letters, 23 selfloop transitions, 0 changer transitions 0/126 dead transitions. [2024-10-13 09:37:21,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 126 transitions, 310 flow [2024-10-13 09:37:21,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:37:21,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:37:21,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 645 transitions. [2024-10-13 09:37:21,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5994423791821561 [2024-10-13 09:37:21,795 INFO L175 Difference]: Start difference. First operand has 429 places, 534 transitions, 1080 flow. Second operand 2 states and 645 transitions. [2024-10-13 09:37:21,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 126 transitions, 310 flow [2024-10-13 09:37:21,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 126 transitions, 306 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 09:37:21,800 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 260 flow [2024-10-13 09:37:21,802 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=133, 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=134, PETRI_TRANSITIONS=126} [2024-10-13 09:37:21,805 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, -295 predicate places. [2024-10-13 09:37:21,806 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 260 flow [2024-10-13 09:37:21,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 109.0) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:37:21,806 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:37:21,806 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] [2024-10-13 09:37:21,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:37:21,807 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 546 more)] === [2024-10-13 09:37:21,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:37:21,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1887561969, now seen corresponding path program 1 times [2024-10-13 09:37:21,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:37:21,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722454408] [2024-10-13 09:37:21,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:37:21,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:37:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:37:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:37:21,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:37:21,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722454408] [2024-10-13 09:37:21,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722454408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:37:21,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:37:21,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:37:21,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534310102] [2024-10-13 09:37:21,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:37:21,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:37:21,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:37:21,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:37:21,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:37:21,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 538 [2024-10-13 09:37:21,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:37:21,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:37:21,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 538 [2024-10-13 09:37:21,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:37:36,705 INFO L124 PetriNetUnfolderBase]: 7660/19490 cut-off events. [2024-10-13 09:37:36,705 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:37:36,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29711 conditions, 19490 events. 7660/19490 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 551. Compared 208086 event pairs, 2156 based on Foata normal form. 0/17531 useless extension candidates. Maximal degree in co-relation 29708. Up to 6784 conditions per place. [2024-10-13 09:37:36,804 INFO L140 encePairwiseOnDemand]: 536/538 looper letters, 40 selfloop transitions, 1 changer transitions 0/141 dead transitions. [2024-10-13 09:37:36,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 141 transitions, 372 flow [2024-10-13 09:37:36,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:37:36,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:37:36,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2024-10-13 09:37:36,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2211895910780669 [2024-10-13 09:37:36,806 INFO L175 Difference]: Start difference. First operand has 134 places, 126 transitions, 260 flow. Second operand 3 states and 357 transitions. [2024-10-13 09:37:36,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 141 transitions, 372 flow [2024-10-13 09:37:36,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 141 transitions, 372 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:37:36,809 INFO L231 Difference]: Finished difference. Result has 135 places, 125 transitions, 260 flow [2024-10-13 09:37:36,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=133, 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=135, PETRI_TRANSITIONS=125} [2024-10-13 09:37:36,810 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, -294 predicate places. [2024-10-13 09:37:36,811 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 260 flow [2024-10-13 09:37:36,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:37:36,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:37:36,811 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] [2024-10-13 09:37:36,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:37:36,811 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 546 more)] === [2024-10-13 09:37:36,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:37:36,812 INFO L85 PathProgramCache]: Analyzing trace with hash 397696090, now seen corresponding path program 1 times [2024-10-13 09:37:36,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:37:36,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993488012] [2024-10-13 09:37:36,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:37:36,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:37:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:37:37,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:37:37,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:37:37,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993488012] [2024-10-13 09:37:37,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993488012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:37:37,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:37:37,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:37:37,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188560822] [2024-10-13 09:37:37,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:37:37,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:37:37,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:37:37,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:37:37,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:37:37,076 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 538 [2024-10-13 09:37:37,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:37:37,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:37:37,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 538 [2024-10-13 09:37:37,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand