./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-wmm/mix014.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e2fb8bed 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/mix014.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 615dc0a4278e77a094a63ed4629507c6f8d1cda73abba57cd69e8912d83fe5fd --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 21:41:39,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 21:41:39,292 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 21:41:39,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 21:41:39,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 21:41:39,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 21:41:39,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 21:41:39,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 21:41:39,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 21:41:39,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 21:41:39,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 21:41:39,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 21:41:39,314 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 21:41:39,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 21:41:39,315 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 21:41:39,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 21:41:39,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:41:39,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 21:41:39,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 21:41:39,316 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 21:41:39,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 21:41:39,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 21:41:39,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 21:41:39,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 21:41:39,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 21:41:39,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 21:41:39,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 21:41:39,316 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 -> 615dc0a4278e77a094a63ed4629507c6f8d1cda73abba57cd69e8912d83fe5fd [2025-03-08 21:41:39,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 21:41:39,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 21:41:39,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 21:41:39,566 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 21:41:39,566 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 21:41:39,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix014.opt.i [2025-03-08 21:41:40,720 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/888cc748f/4c750949eb1b4b9abaa5b34ff9fb9abd/FLAGe0e3319a4 [2025-03-08 21:41:40,977 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 21:41:40,978 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014.opt.i [2025-03-08 21:41:40,990 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/888cc748f/4c750949eb1b4b9abaa5b34ff9fb9abd/FLAGe0e3319a4 [2025-03-08 21:41:41,292 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/888cc748f/4c750949eb1b4b9abaa5b34ff9fb9abd [2025-03-08 21:41:41,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 21:41:41,295 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 21:41:41,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 21:41:41,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 21:41:41,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 21:41:41,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63171e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41, skipping insertion in model container [2025-03-08 21:41:41,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,321 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 21:41:41,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:41:41,570 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 21:41:41,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 21:41:41,666 INFO L204 MainTranslator]: Completed translation [2025-03-08 21:41:41,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41 WrapperNode [2025-03-08 21:41:41,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 21:41:41,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 21:41:41,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 21:41:41,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 21:41:41,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,739 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 971 [2025-03-08 21:41:41,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 21:41:41,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 21:41:41,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 21:41:41,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 21:41:41,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,770 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,775 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,778 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 21:41:41,784 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 21:41:41,784 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 21:41:41,784 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 21:41:41,785 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41" (1/1) ... [2025-03-08 21:41:41,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 21:41:41,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 21:41:41,819 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) [2025-03-08 21:41:41,824 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 [2025-03-08 21:41:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-08 21:41:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 21:41:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-08 21:41:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-08 21:41:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-08 21:41:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-08 21:41:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-08 21:41:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-08 21:41:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-08 21:41:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-08 21:41:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 21:41:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-08 21:41:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 21:41:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 21:41:41,843 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 21:41:41,992 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 21:41:41,993 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 21:41:43,133 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 21:41:43,133 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 21:41:46,203 WARN L170 LargeBlockEncoding]: Complex 2:88 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-08 21:41:46,448 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-08 21:41:46,472 WARN L170 LargeBlockEncoding]: Complex 2:22 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-08 21:41:46,501 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 21:41:46,504 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 21:41:46,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:41:46 BoogieIcfgContainer [2025-03-08 21:41:46,505 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 21:41:46,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 21:41:46,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 21:41:46,510 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 21:41:46,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 09:41:41" (1/3) ... [2025-03-08 21:41:46,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c25b88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:41:46, skipping insertion in model container [2025-03-08 21:41:46,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 09:41:41" (2/3) ... [2025-03-08 21:41:46,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c25b88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 09:41:46, skipping insertion in model container [2025-03-08 21:41:46,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 09:41:46" (3/3) ... [2025-03-08 21:41:46,514 INFO L128 eAbstractionObserver]: Analyzing ICFG mix014.opt.i [2025-03-08 21:41:46,528 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 21:41:46,531 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix014.opt.i that has 5 procedures, 428 locations, 1 initial locations, 0 loop locations, and 296 error locations. [2025-03-08 21:41:46,531 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 21:41:46,882 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-08 21:41:46,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 562 transitions, 1140 flow [2025-03-08 21:41:47,226 INFO L124 PetriNetUnfolderBase]: 135/558 cut-off events. [2025-03-08 21:41:47,228 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:41:47,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 558 events. 135/558 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2804 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 519. Up to 2 conditions per place. [2025-03-08 21:41:47,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 562 transitions, 1140 flow [2025-03-08 21:41:47,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 436 places, 558 transitions, 1128 flow [2025-03-08 21:41:47,298 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 21:41:47,311 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;@53c50cdd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 21:41:47,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 557 error locations. [2025-03-08 21:41:47,322 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 21:41:47,324 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2025-03-08 21:41:47,324 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:41:47,324 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:41:47,325 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] [2025-03-08 21:41:47,325 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err3ASSERT_VIOLATIONDATA_RACE === [P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err0ASSERT_VIOLATIONDATA_RACE (and 553 more)] === [2025-03-08 21:41:47,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:41:47,330 INFO L85 PathProgramCache]: Analyzing trace with hash 853232258, now seen corresponding path program 1 times [2025-03-08 21:41:47,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:41:47,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070150777] [2025-03-08 21:41:47,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:41:47,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:41:47,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-08 21:41:47,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-08 21:41:47,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:41:47,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:41:47,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:41:47,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:41:47,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070150777] [2025-03-08 21:41:47,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070150777] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:41:47,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:41:47,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-08 21:41:47,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160687568] [2025-03-08 21:41:47,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:41:47,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 21:41:47,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:41:47,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 21:41:47,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 21:41:47,567 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 562 [2025-03-08 21:41:47,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 558 transitions, 1128 flow. Second operand has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:41:47,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:41:47,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 562 [2025-03-08 21:41:47,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:42:12,376 INFO L124 PetriNetUnfolderBase]: 13529/33080 cut-off events. [2025-03-08 21:42:12,376 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2025-03-08 21:42:12,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50772 conditions, 33080 events. 13529/33080 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 1243. Compared 388366 event pairs, 11279 based on Foata normal form. 2642/31473 useless extension candidates. Maximal degree in co-relation 50718. Up to 17315 conditions per place. [2025-03-08 21:42:12,605 INFO L140 encePairwiseOnDemand]: 136/562 looper letters, 28 selfloop transitions, 0 changer transitions 0/130 dead transitions. [2025-03-08 21:42:12,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 130 transitions, 328 flow [2025-03-08 21:42:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 21:42:12,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-08 21:42:12,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 668 transitions. [2025-03-08 21:42:12,621 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.594306049822064 [2025-03-08 21:42:12,622 INFO L175 Difference]: Start difference. First operand has 436 places, 558 transitions, 1128 flow. Second operand 2 states and 668 transitions. [2025-03-08 21:42:12,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 130 transitions, 328 flow [2025-03-08 21:42:12,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 130 transitions, 324 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-08 21:42:12,631 INFO L231 Difference]: Finished difference. Result has 137 places, 130 transitions, 268 flow [2025-03-08 21:42:12,633 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=562, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=136, 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=137, PETRI_TRANSITIONS=130} [2025-03-08 21:42:12,637 INFO L279 CegarLoopForPetriNet]: 436 programPoint places, -299 predicate places. [2025-03-08 21:42:12,637 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 130 transitions, 268 flow [2025-03-08 21:42:12,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:42:12,638 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:42:12,638 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] [2025-03-08 21:42:12,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 21:42:12,638 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err0ASSERT_VIOLATIONDATA_RACE (and 553 more)] === [2025-03-08 21:42:12,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:42:12,640 INFO L85 PathProgramCache]: Analyzing trace with hash 46138600, now seen corresponding path program 1 times [2025-03-08 21:42:12,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:42:12,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025655883] [2025-03-08 21:42:12,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:42:12,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:42:12,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 21:42:12,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 21:42:12,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:42:12,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:42:12,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:42:12,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:42:12,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025655883] [2025-03-08 21:42:12,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025655883] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:42:12,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:42:12,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:42:12,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966635140] [2025-03-08 21:42:12,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:42:12,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:42:12,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:42:12,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:42:12,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:42:12,819 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 562 [2025-03-08 21:42:12,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 130 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:42:12,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:42:12,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 562 [2025-03-08 21:42:12,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 21:42:45,920 INFO L124 PetriNetUnfolderBase]: 20069/47338 cut-off events. [2025-03-08 21:42:45,920 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 21:42:46,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73367 conditions, 47338 events. 20069/47338 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1211. Compared 545154 event pairs, 5399 based on Foata normal form. 0/41674 useless extension candidates. Maximal degree in co-relation 73364. Up to 17580 conditions per place. [2025-03-08 21:42:46,233 INFO L140 encePairwiseOnDemand]: 560/562 looper letters, 49 selfloop transitions, 1 changer transitions 0/149 dead transitions. [2025-03-08 21:42:46,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 149 transitions, 406 flow [2025-03-08 21:42:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 21:42:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 21:42:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2025-03-08 21:42:46,236 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.21530249110320285 [2025-03-08 21:42:46,236 INFO L175 Difference]: Start difference. First operand has 137 places, 130 transitions, 268 flow. Second operand 3 states and 363 transitions. [2025-03-08 21:42:46,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 149 transitions, 406 flow [2025-03-08 21:42:46,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 149 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 21:42:46,239 INFO L231 Difference]: Finished difference. Result has 138 places, 129 transitions, 268 flow [2025-03-08 21:42:46,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=562, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=136, 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=138, PETRI_TRANSITIONS=129} [2025-03-08 21:42:46,240 INFO L279 CegarLoopForPetriNet]: 436 programPoint places, -298 predicate places. [2025-03-08 21:42:46,240 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 129 transitions, 268 flow [2025-03-08 21:42:46,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:42:46,241 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 21:42:46,241 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, 1] [2025-03-08 21:42:46,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 21:42:46,241 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [P0Err3ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err0ASSERT_VIOLATIONDATA_RACE (and 553 more)] === [2025-03-08 21:42:46,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 21:42:46,242 INFO L85 PathProgramCache]: Analyzing trace with hash 51019154, now seen corresponding path program 1 times [2025-03-08 21:42:46,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 21:42:46,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441201194] [2025-03-08 21:42:46,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 21:42:46,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 21:42:46,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-08 21:42:46,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-08 21:42:46,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 21:42:46,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 21:42:46,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 21:42:46,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 21:42:46,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441201194] [2025-03-08 21:42:46,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441201194] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 21:42:46,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 21:42:46,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 21:42:46,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440895938] [2025-03-08 21:42:46,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 21:42:46,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 21:42:46,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 21:42:46,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 21:42:46,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 21:42:46,400 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 562 [2025-03-08 21:42:46,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 129 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 21:42:46,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 21:42:46,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 562 [2025-03-08 21:42:46,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand