./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix030_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix030_tso.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 20a2c57970e5e291ffc10826c9a5fbe3296a1e55ae86cfd2b786718aae571bfa --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 10:51:06,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 10:51:07,039 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 10:51:07,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 10:51:07,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 10:51:07,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 10:51:07,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 10:51:07,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 10:51:07,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 10:51:07,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 10:51:07,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 10:51:07,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 10:51:07,071 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 10:51:07,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 10:51:07,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 10:51:07,071 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 10:51:07,071 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 10:51:07,072 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:51:07,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 10:51:07,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 10:51:07,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 10:51:07,073 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 10:51:07,073 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 10:51:07,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 10:51:07,073 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/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 -> 20a2c57970e5e291ffc10826c9a5fbe3296a1e55ae86cfd2b786718aae571bfa [2025-03-17 10:51:07,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 10:51:07,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 10:51:07,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 10:51:07,396 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 10:51:07,396 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 10:51:07,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix030_tso.i [2025-03-17 10:51:08,692 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48696938c/e995627f5b79401f9435f1db3fdb0692/FLAGb4c558a2b [2025-03-17 10:51:09,029 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 10:51:09,030 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix030_tso.i [2025-03-17 10:51:09,050 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48696938c/e995627f5b79401f9435f1db3fdb0692/FLAGb4c558a2b [2025-03-17 10:51:09,070 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48696938c/e995627f5b79401f9435f1db3fdb0692 [2025-03-17 10:51:09,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 10:51:09,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 10:51:09,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 10:51:09,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 10:51:09,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 10:51:09,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472024fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09, skipping insertion in model container [2025-03-17 10:51:09,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,120 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 10:51:09,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:51:09,393 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 10:51:09,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 10:51:09,516 INFO L204 MainTranslator]: Completed translation [2025-03-17 10:51:09,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09 WrapperNode [2025-03-17 10:51:09,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 10:51:09,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 10:51:09,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 10:51:09,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 10:51:09,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,609 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 1411 [2025-03-17 10:51:09,611 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 10:51:09,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 10:51:09,612 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 10:51:09,612 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 10:51:09,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,659 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 10:51:09,678 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 10:51:09,678 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 10:51:09,679 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 10:51:09,679 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09" (1/1) ... [2025-03-17 10:51:09,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 10:51:09,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 10:51:09,710 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) [2025-03-17 10:51:09,717 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 [2025-03-17 10:51:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-17 10:51:09,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 10:51:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-17 10:51:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-17 10:51:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-17 10:51:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-17 10:51:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-17 10:51:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-17 10:51:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-17 10:51:09,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-17 10:51:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 10:51:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-17 10:51:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 10:51:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 10:51:09,739 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 10:51:09,915 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 10:51:09,917 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 10:51:11,331 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 10:51:11,331 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 10:51:15,140 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-17 10:51:15,170 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-17 10:51:15,195 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-17 10:51:15,344 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 10:51:15,345 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 10:51:15,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:51:15 BoogieIcfgContainer [2025-03-17 10:51:15,345 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 10:51:15,347 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 10:51:15,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 10:51:15,353 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 10:51:15,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 10:51:09" (1/3) ... [2025-03-17 10:51:15,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e87301b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:51:15, skipping insertion in model container [2025-03-17 10:51:15,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 10:51:09" (2/3) ... [2025-03-17 10:51:15,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e87301b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 10:51:15, skipping insertion in model container [2025-03-17 10:51:15,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 10:51:15" (3/3) ... [2025-03-17 10:51:15,356 INFO L128 eAbstractionObserver]: Analyzing ICFG mix030_tso.i [2025-03-17 10:51:15,370 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 10:51:15,374 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix030_tso.i that has 5 procedures, 447 locations, 1 initial locations, 0 loop locations, and 319 error locations. [2025-03-17 10:51:15,375 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 10:51:15,674 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-17 10:51:15,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 459 places, 515 transitions, 1046 flow [2025-03-17 10:51:15,989 INFO L124 PetriNetUnfolderBase]: 69/511 cut-off events. [2025-03-17 10:51:15,990 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:51:16,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 511 events. 69/511 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 2894 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 475. Up to 2 conditions per place. [2025-03-17 10:51:16,012 INFO L82 GeneralOperation]: Start removeDead. Operand has 459 places, 515 transitions, 1046 flow [2025-03-17 10:51:16,042 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 455 places, 511 transitions, 1034 flow [2025-03-17 10:51:16,048 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 10:51:16,060 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;@226204d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 10:51:16,060 INFO L334 AbstractCegarLoop]: Starting to check reachability of 510 error locations. [2025-03-17 10:51:16,067 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 10:51:16,067 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2025-03-17 10:51:16,067 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:51:16,068 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:51:16,069 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] [2025-03-17 10:51:16,069 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err3ASSERT_VIOLATIONDATA_RACE === [P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err0ASSERT_VIOLATIONDATA_RACE (and 506 more)] === [2025-03-17 10:51:16,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:51:16,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1662268552, now seen corresponding path program 1 times [2025-03-17 10:51:16,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:51:16,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053978653] [2025-03-17 10:51:16,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:51:16,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:51:16,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 10:51:16,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 10:51:16,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:51:16,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:51:16,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:51:16,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:51:16,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053978653] [2025-03-17 10:51:16,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053978653] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:51:16,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:51:16,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 10:51:16,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633748116] [2025-03-17 10:51:16,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:51:16,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 10:51:16,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:51:16,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 10:51:16,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 10:51:16,297 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 515 [2025-03-17 10:51:16,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 511 transitions, 1034 flow. Second operand has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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) [2025-03-17 10:51:16,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:51:16,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 515 [2025-03-17 10:51:16,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:51:35,501 INFO L124 PetriNetUnfolderBase]: 11170/27488 cut-off events. [2025-03-17 10:51:35,502 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2025-03-17 10:51:35,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42131 conditions, 27488 events. 11170/27488 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1045. Compared 314417 event pairs, 9295 based on Foata normal form. 2193/26113 useless extension candidates. Maximal degree in co-relation 42080. Up to 14326 conditions per place. [2025-03-17 10:51:35,653 INFO L140 encePairwiseOnDemand]: 132/515 looper letters, 27 selfloop transitions, 0 changer transitions 0/126 dead transitions. [2025-03-17 10:51:35,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 126 transitions, 318 flow [2025-03-17 10:51:35,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 10:51:35,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 10:51:35,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 618 transitions. [2025-03-17 10:51:35,666 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2025-03-17 10:51:35,667 INFO L175 Difference]: Start difference. First operand has 455 places, 511 transitions, 1034 flow. Second operand 2 states and 618 transitions. [2025-03-17 10:51:35,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 126 transitions, 318 flow [2025-03-17 10:51:35,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 126 transitions, 314 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 10:51:35,673 INFO L231 Difference]: Finished difference. Result has 133 places, 126 transitions, 260 flow [2025-03-17 10:51:35,676 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=132, 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=133, PETRI_TRANSITIONS=126} [2025-03-17 10:51:35,680 INFO L279 CegarLoopForPetriNet]: 455 programPoint places, -322 predicate places. [2025-03-17 10:51:35,680 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 126 transitions, 260 flow [2025-03-17 10:51:35,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 105.0) internal successors, (210), 2 states have internal predecessors, (210), 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) [2025-03-17 10:51:35,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:51:35,681 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] [2025-03-17 10:51:35,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 10:51:35,681 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr129ASSERT_VIOLATIONDATA_RACE === [P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err0ASSERT_VIOLATIONDATA_RACE (and 506 more)] === [2025-03-17 10:51:35,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:51:35,683 INFO L85 PathProgramCache]: Analyzing trace with hash 736195836, now seen corresponding path program 1 times [2025-03-17 10:51:35,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:51:35,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359417424] [2025-03-17 10:51:35,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:51:35,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:51:35,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-17 10:51:35,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-17 10:51:35,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:51:35,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:51:35,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:51:35,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:51:35,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359417424] [2025-03-17 10:51:35,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359417424] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:51:35,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:51:35,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:51:35,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984647026] [2025-03-17 10:51:35,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:51:35,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:51:35,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:51:35,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:51:35,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:51:35,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 515 [2025-03-17 10:51:35,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 126 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2025-03-17 10:51:35,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:51:35,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 515 [2025-03-17 10:51:35,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 10:51:55,760 INFO L124 PetriNetUnfolderBase]: 16570/39316 cut-off events. [2025-03-17 10:51:55,761 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 10:51:55,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60856 conditions, 39316 events. 16570/39316 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1016. Compared 442259 event pairs, 4445 based on Foata normal form. 0/34589 useless extension candidates. Maximal degree in co-relation 60853. Up to 14550 conditions per place. [2025-03-17 10:51:55,977 INFO L140 encePairwiseOnDemand]: 513/515 looper letters, 47 selfloop transitions, 1 changer transitions 0/144 dead transitions. [2025-03-17 10:51:55,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 144 transitions, 392 flow [2025-03-17 10:51:55,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 10:51:55,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 10:51:55,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 352 transitions. [2025-03-17 10:51:55,983 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.227831715210356 [2025-03-17 10:51:55,983 INFO L175 Difference]: Start difference. First operand has 133 places, 126 transitions, 260 flow. Second operand 3 states and 352 transitions. [2025-03-17 10:51:55,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 144 transitions, 392 flow [2025-03-17 10:51:55,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 144 transitions, 392 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 10:51:55,989 INFO L231 Difference]: Finished difference. Result has 134 places, 125 transitions, 260 flow [2025-03-17 10:51:55,992 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=132, 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=134, PETRI_TRANSITIONS=125} [2025-03-17 10:51:55,992 INFO L279 CegarLoopForPetriNet]: 455 programPoint places, -321 predicate places. [2025-03-17 10:51:55,993 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 125 transitions, 260 flow [2025-03-17 10:51:55,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2025-03-17 10:51:55,993 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 10:51:55,993 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] [2025-03-17 10:51:55,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 10:51:55,993 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err0ASSERT_VIOLATIONDATA_RACE (and 506 more)] === [2025-03-17 10:51:55,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 10:51:55,994 INFO L85 PathProgramCache]: Analyzing trace with hash 2138355477, now seen corresponding path program 1 times [2025-03-17 10:51:55,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 10:51:55,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915821714] [2025-03-17 10:51:55,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 10:51:55,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 10:51:56,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-17 10:51:56,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-17 10:51:56,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 10:51:56,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 10:51:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 10:51:56,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 10:51:56,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915821714] [2025-03-17 10:51:56,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915821714] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 10:51:56,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 10:51:56,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 10:51:56,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843457685] [2025-03-17 10:51:56,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 10:51:56,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 10:51:56,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 10:51:56,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 10:51:56,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 10:51:56,285 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 515 [2025-03-17 10:51:56,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 125 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2025-03-17 10:51:56,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 10:51:56,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 515 [2025-03-17 10:51:56,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand