./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix026.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix026.oepc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 a107688f8a9743f96e4ba7fbbac745d7f444b48f461db6b6c74848593b202e05 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:05:29,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:05:29,650 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:05:29,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:05:29,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:05:29,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:05:29,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:05:29,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:05:29,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:05:29,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:05:29,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:05:29,677 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:05:29,677 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:05:29,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:05:29,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:05:29,677 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:05:29,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:05:29,678 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:05:29,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:05:29,678 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:05:29,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:05:29,678 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:05:29,680 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:05:29,680 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:05:29,681 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:05:29,681 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:05:29,681 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:05:29,681 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:05:29,681 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:05:29,681 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:05:29,681 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:05:29,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:05:29,681 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:05:29,681 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:05:29,681 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:05:29,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:05:29,682 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:05:29,682 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:05:29,682 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:05:29,682 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:05:29,682 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:05:29,682 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:05:29,682 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> a107688f8a9743f96e4ba7fbbac745d7f444b48f461db6b6c74848593b202e05 [2025-02-06 09:05:29,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:05:29,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:05:29,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:05:29,995 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:05:29,996 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:05:29,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix026.oepc.i [2025-02-06 09:05:31,263 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/34c4d3f1f/518534d1caca4706bc0bf9f0a91b29da/FLAGecc4cd071 [2025-02-06 09:05:31,596 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:05:31,597 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix026.oepc.i [2025-02-06 09:05:31,625 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/34c4d3f1f/518534d1caca4706bc0bf9f0a91b29da/FLAGecc4cd071 [2025-02-06 09:05:31,651 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/34c4d3f1f/518534d1caca4706bc0bf9f0a91b29da [2025-02-06 09:05:31,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:05:31,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:05:31,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:05:31,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:05:31,663 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:05:31,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:05:31" (1/1) ... [2025-02-06 09:05:31,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e081e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:31, skipping insertion in model container [2025-02-06 09:05:31,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:05:31" (1/1) ... [2025-02-06 09:05:31,711 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:05:32,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:05:32,085 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:05:32,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:05:32,242 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:05:32,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32 WrapperNode [2025-02-06 09:05:32,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:05:32,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:05:32,244 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:05:32,244 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:05:32,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32" (1/1) ... [2025-02-06 09:05:32,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32" (1/1) ... [2025-02-06 09:05:32,307 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 506 [2025-02-06 09:05:32,310 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:05:32,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:05:32,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:05:32,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:05:32,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32" (1/1) ... [2025-02-06 09:05:32,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32" (1/1) ... [2025-02-06 09:05:32,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32" (1/1) ... [2025-02-06 09:05:32,324 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32" (1/1) ... [2025-02-06 09:05:32,343 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32" (1/1) ... [2025-02-06 09:05:32,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32" (1/1) ... [2025-02-06 09:05:32,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32" (1/1) ... [2025-02-06 09:05:32,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32" (1/1) ... [2025-02-06 09:05:32,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:05:32,358 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:05:32,358 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:05:32,358 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:05:32,359 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32" (1/1) ... [2025-02-06 09:05:32,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:05:32,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:05:32,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:05:32,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:05:32,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 09:05:32,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:05:32,438 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 09:05:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 09:05:32,440 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 09:05:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 09:05:32,440 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 09:05:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 09:05:32,440 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 09:05:32,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 09:05:32,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:05:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 09:05:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:05:32,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:05:32,442 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:05:32,656 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:05:32,657 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:05:34,144 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:05:34,144 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:05:37,816 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-06 09:05:37,859 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-06 09:05:37,901 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-06 09:05:37,948 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-06 09:05:37,993 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-06 09:05:38,046 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:05:38,049 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:05:38,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:05:38 BoogieIcfgContainer [2025-02-06 09:05:38,050 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:05:38,054 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:05:38,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:05:38,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:05:38,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:05:31" (1/3) ... [2025-02-06 09:05:38,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a29a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:05:38, skipping insertion in model container [2025-02-06 09:05:38,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:05:32" (2/3) ... [2025-02-06 09:05:38,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a29a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:05:38, skipping insertion in model container [2025-02-06 09:05:38,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:05:38" (3/3) ... [2025-02-06 09:05:38,064 INFO L128 eAbstractionObserver]: Analyzing ICFG mix026.oepc.i [2025-02-06 09:05:38,083 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:05:38,087 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix026.oepc.i that has 5 procedures, 413 locations, 1 initial locations, 0 loop locations, and 283 error locations. [2025-02-06 09:05:38,087 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:05:38,674 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 09:05:38,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 425 places, 525 transitions, 1066 flow [2025-02-06 09:05:39,073 INFO L124 PetriNetUnfolderBase]: 113/521 cut-off events. [2025-02-06 09:05:39,076 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:05:39,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 521 events. 113/521 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2450 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 483. Up to 2 conditions per place. [2025-02-06 09:05:39,108 INFO L82 GeneralOperation]: Start removeDead. Operand has 425 places, 525 transitions, 1066 flow [2025-02-06 09:05:39,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 421 places, 521 transitions, 1054 flow [2025-02-06 09:05:39,165 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:05:39,175 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;@43b89371, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:05:39,175 INFO L334 AbstractCegarLoop]: Starting to check reachability of 532 error locations. [2025-02-06 09:05:39,186 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:05:39,187 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2025-02-06 09:05:39,187 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:05:39,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:05:39,188 INFO L206 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] [2025-02-06 09:05:39,188 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err50ASSERT_VIOLATIONDATA_RACE === [P0Err50ASSERT_VIOLATIONDATA_RACE, P0Err49ASSERT_VIOLATIONDATA_RACE, P0Err48ASSERT_VIOLATIONDATA_RACE, P0Err47ASSERT_VIOLATIONDATA_RACE (and 528 more)] === [2025-02-06 09:05:39,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:05:39,194 INFO L85 PathProgramCache]: Analyzing trace with hash -672471456, now seen corresponding path program 1 times [2025-02-06 09:05:39,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:05:39,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731596575] [2025-02-06 09:05:39,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:05:39,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:05:39,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 09:05:39,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 09:05:39,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:05:39,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:05:39,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:05:39,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:05:39,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731596575] [2025-02-06 09:05:39,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731596575] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:05:39,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:05:39,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:05:39,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264893278] [2025-02-06 09:05:39,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:05:39,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:05:39,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:05:39,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:05:39,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:05:39,458 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 525 [2025-02-06 09:05:39,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 521 transitions, 1054 flow. Second operand has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:05:39,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:05:39,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 525 [2025-02-06 09:05:39,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:05:53,560 INFO L124 PetriNetUnfolderBase]: 12431/28751 cut-off events. [2025-02-06 09:05:53,561 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2025-02-06 09:05:53,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44655 conditions, 28751 events. 12431/28751 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1045. Compared 316386 event pairs, 9295 based on Foata normal form. 2193/26115 useless extension candidates. Maximal degree in co-relation 44602. Up to 15587 conditions per place. [2025-02-06 09:05:53,803 INFO L140 encePairwiseOnDemand]: 136/525 looper letters, 29 selfloop transitions, 0 changer transitions 0/130 dead transitions. [2025-02-06 09:05:53,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 130 transitions, 330 flow [2025-02-06 09:05:53,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:05:53,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:05:53,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 630 transitions. [2025-02-06 09:05:53,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2025-02-06 09:05:53,823 INFO L175 Difference]: Start difference. First operand has 421 places, 521 transitions, 1054 flow. Second operand 2 states and 630 transitions. [2025-02-06 09:05:53,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 130 transitions, 330 flow [2025-02-06 09:05:53,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 130 transitions, 326 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 09:05:53,833 INFO L231 Difference]: Finished difference. Result has 135 places, 130 transitions, 268 flow [2025-02-06 09:05:53,835 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=525, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=268, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2025-02-06 09:05:53,839 INFO L279 CegarLoopForPetriNet]: 421 programPoint places, -286 predicate places. [2025-02-06 09:05:53,840 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 268 flow [2025-02-06 09:05:53,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:05:53,840 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:05:53,840 INFO L206 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] [2025-02-06 09:05:53,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:05:53,842 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE === [P0Err50ASSERT_VIOLATIONDATA_RACE, P0Err49ASSERT_VIOLATIONDATA_RACE, P0Err48ASSERT_VIOLATIONDATA_RACE, P0Err47ASSERT_VIOLATIONDATA_RACE (and 528 more)] === [2025-02-06 09:05:53,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:05:53,844 INFO L85 PathProgramCache]: Analyzing trace with hash 99121520, now seen corresponding path program 1 times [2025-02-06 09:05:53,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:05:53,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303594524] [2025-02-06 09:05:53,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:05:53,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:05:53,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-06 09:05:53,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 09:05:53,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:05:53,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:05:54,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:05:54,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:05:54,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303594524] [2025-02-06 09:05:54,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303594524] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:05:54,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:05:54,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:05:54,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191812964] [2025-02-06 09:05:54,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:05:54,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:05:54,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:05:54,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:05:54,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:05:54,028 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 525 [2025-02-06 09:05:54,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:05:54,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:05:54,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 525 [2025-02-06 09:05:54,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:06:10,446 INFO L124 PetriNetUnfolderBase]: 18431/41179 cut-off events. [2025-02-06 09:06:10,446 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:06:10,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64580 conditions, 41179 events. 18431/41179 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1016. Compared 444748 event pairs, 4445 based on Foata normal form. 0/34591 useless extension candidates. Maximal degree in co-relation 64577. Up to 15750 conditions per place. [2025-02-06 09:06:10,747 INFO L140 encePairwiseOnDemand]: 523/525 looper letters, 51 selfloop transitions, 1 changer transitions 0/150 dead transitions. [2025-02-06 09:06:10,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 150 transitions, 412 flow [2025-02-06 09:06:10,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:06:10,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:06:10,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 362 transitions. [2025-02-06 09:06:10,750 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.22984126984126985 [2025-02-06 09:06:10,750 INFO L175 Difference]: Start difference. First operand has 135 places, 130 transitions, 268 flow. Second operand 3 states and 362 transitions. [2025-02-06 09:06:10,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 150 transitions, 412 flow [2025-02-06 09:06:10,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 150 transitions, 412 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:06:10,754 INFO L231 Difference]: Finished difference. Result has 136 places, 129 transitions, 268 flow [2025-02-06 09:06:10,755 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=525, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=136, PETRI_TRANSITIONS=129} [2025-02-06 09:06:10,756 INFO L279 CegarLoopForPetriNet]: 421 programPoint places, -285 predicate places. [2025-02-06 09:06:10,756 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 129 transitions, 268 flow [2025-02-06 09:06:10,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:06:10,756 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:06:10,756 INFO L206 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] [2025-02-06 09:06:10,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:06:10,757 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [P0Err50ASSERT_VIOLATIONDATA_RACE, P0Err49ASSERT_VIOLATIONDATA_RACE, P0Err48ASSERT_VIOLATIONDATA_RACE, P0Err47ASSERT_VIOLATIONDATA_RACE (and 528 more)] === [2025-02-06 09:06:10,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:06:10,757 INFO L85 PathProgramCache]: Analyzing trace with hash 91514825, now seen corresponding path program 1 times [2025-02-06 09:06:10,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:06:10,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950925781] [2025-02-06 09:06:10,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:06:10,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:06:10,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-06 09:06:10,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 09:06:10,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:06:10,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:06:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:06:10,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:06:10,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950925781] [2025-02-06 09:06:10,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950925781] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:06:10,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:06:10,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:06:10,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767438210] [2025-02-06 09:06:10,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:06:10,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:06:10,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:06:10,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:06:10,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:06:10,954 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 525 [2025-02-06 09:06:10,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 129 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:06:10,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:06:10,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 525 [2025-02-06 09:06:10,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand