./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.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 729ea5b7f047316231f562bf88a66f84bb913811f2b458cb706ab3ed78d2b3a0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:49:28,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:49:28,700 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:49:28,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:49:28,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:49:28,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:49:28,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:49:28,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:49:28,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:49:28,725 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:49:28,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:49:28,726 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:49:28,726 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:49:28,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:49:28,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:49:28,727 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:49:28,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:49:28,727 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:49:28,727 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:49:28,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:49:28,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:49:28,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:49:28,729 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:49:28,729 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:49:28,729 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:49:28,730 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:49:28,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:49:28,730 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:49:28,730 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:49:28,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:49:28,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:49:28,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:49:28,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:49:28,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:49:28,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:49:28,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:49:28,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:49:28,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:49:28,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:49:28,732 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:49:28,732 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:49:28,733 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 729ea5b7f047316231f562bf88a66f84bb913811f2b458cb706ab3ed78d2b3a0 [2024-11-16 23:49:28,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:49:28,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:49:28,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:49:28,991 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:49:28,991 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:49:28,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i [2024-11-16 23:49:30,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:49:30,415 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:49:30,415 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i [2024-11-16 23:49:30,431 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cbab58de/023c761e5961439cb6385a4398cae06f/FLAGfe2cd12b3 [2024-11-16 23:49:30,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cbab58de/023c761e5961439cb6385a4398cae06f [2024-11-16 23:49:30,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:49:30,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:49:30,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:49:30,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:49:30,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:49:30,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:30,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b86a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30, skipping insertion in model container [2024-11-16 23:49:30,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:30,493 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:49:30,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:49:30,872 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:49:30,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:49:30,983 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:49:30,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30 WrapperNode [2024-11-16 23:49:30,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:49:30,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:49:30,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:49:30,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:49:30,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:31,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:31,020 INFO L138 Inliner]: procedures = 277, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-11-16 23:49:31,020 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:49:31,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:49:31,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:49:31,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:49:31,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:31,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:31,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:31,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:31,045 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:31,046 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:31,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:31,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:31,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:49:31,060 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:49:31,060 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:49:31,060 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:49:31,060 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30" (1/1) ... [2024-11-16 23:49:31,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:49:31,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:49:31,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:49:31,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:49:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:49:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:49:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:49:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:49:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:49:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:49:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:49:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:49:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-16 23:49:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-16 23:49:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:49:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:49:31,132 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:49:31,286 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:49:31,287 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:49:31,466 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:49:31,466 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:49:31,492 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:49:31,492 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:49:31,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:49:31 BoogieIcfgContainer [2024-11-16 23:49:31,493 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:49:31,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:49:31,496 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:49:31,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:49:31,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:49:30" (1/3) ... [2024-11-16 23:49:31,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db213b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:49:31, skipping insertion in model container [2024-11-16 23:49:31,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:30" (2/3) ... [2024-11-16 23:49:31,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db213b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:49:31, skipping insertion in model container [2024-11-16 23:49:31,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:49:31" (3/3) ... [2024-11-16 23:49:31,501 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-inc-race-2.i [2024-11-16 23:49:31,514 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:49:31,514 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-16 23:49:31,514 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:49:31,562 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 23:49:31,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 125 transitions, 257 flow [2024-11-16 23:49:31,634 INFO L124 PetriNetUnfolderBase]: 6/162 cut-off events. [2024-11-16 23:49:31,635 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:49:31,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 162 events. 6/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 262 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 81. Up to 4 conditions per place. [2024-11-16 23:49:31,639 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 125 transitions, 257 flow [2024-11-16 23:49:31,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 125 transitions, 257 flow [2024-11-16 23:49:31,649 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:49:31,653 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;@20b6ad25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:49:31,654 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-16 23:49:31,659 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:49:31,659 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2024-11-16 23:49:31,659 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:49:31,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:31,660 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:31,661 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:49:31,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:31,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1121567677, now seen corresponding path program 1 times [2024-11-16 23:49:31,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:31,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89625348] [2024-11-16 23:49:31,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:31,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:31,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:31,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:31,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89625348] [2024-11-16 23:49:31,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89625348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:31,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:31,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:49:31,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499133349] [2024-11-16 23:49:31,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:31,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:49:31,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:31,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:49:31,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:49:31,932 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 125 [2024-11-16 23:49:31,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 125 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:31,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:31,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 125 [2024-11-16 23:49:31,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:32,030 INFO L124 PetriNetUnfolderBase]: 7/234 cut-off events. [2024-11-16 23:49:32,030 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-16 23:49:32,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 234 events. 7/234 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 605 event pairs, 6 based on Foata normal form. 9/215 useless extension candidates. Maximal degree in co-relation 174. Up to 25 conditions per place. [2024-11-16 23:49:32,034 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 10 selfloop transitions, 2 changer transitions 1/121 dead transitions. [2024-11-16 23:49:32,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 121 transitions, 273 flow [2024-11-16 23:49:32,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:49:32,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:49:32,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2024-11-16 23:49:32,054 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9146666666666666 [2024-11-16 23:49:32,056 INFO L175 Difference]: Start difference. First operand has 124 places, 125 transitions, 257 flow. Second operand 3 states and 343 transitions. [2024-11-16 23:49:32,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 121 transitions, 273 flow [2024-11-16 23:49:32,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 121 transitions, 273 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:49:32,064 INFO L231 Difference]: Finished difference. Result has 125 places, 120 transitions, 251 flow [2024-11-16 23:49:32,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=251, PETRI_PLACES=125, PETRI_TRANSITIONS=120} [2024-11-16 23:49:32,069 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 1 predicate places. [2024-11-16 23:49:32,069 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 120 transitions, 251 flow [2024-11-16 23:49:32,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:32,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:32,071 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:32,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:49:32,071 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:49:32,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:32,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1811157416, now seen corresponding path program 1 times [2024-11-16 23:49:32,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:32,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744806449] [2024-11-16 23:49:32,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:32,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:32,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:32,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:32,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744806449] [2024-11-16 23:49:32,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744806449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:32,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:32,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:49:32,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648325395] [2024-11-16 23:49:32,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:32,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:49:32,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:32,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:49:32,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:49:32,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 125 [2024-11-16 23:49:32,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 120 transitions, 251 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:32,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:32,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 125 [2024-11-16 23:49:32,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:32,221 INFO L124 PetriNetUnfolderBase]: 9/219 cut-off events. [2024-11-16 23:49:32,221 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-16 23:49:32,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 219 events. 9/219 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 476 event pairs, 2 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 216. Up to 24 conditions per place. [2024-11-16 23:49:32,223 INFO L140 encePairwiseOnDemand]: 121/125 looper letters, 11 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2024-11-16 23:49:32,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 122 transitions, 281 flow [2024-11-16 23:49:32,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:49:32,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:49:32,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-11-16 23:49:32,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.928 [2024-11-16 23:49:32,225 INFO L175 Difference]: Start difference. First operand has 125 places, 120 transitions, 251 flow. Second operand 3 states and 348 transitions. [2024-11-16 23:49:32,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 122 transitions, 281 flow [2024-11-16 23:49:32,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 122 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:49:32,228 INFO L231 Difference]: Finished difference. Result has 123 places, 120 transitions, 257 flow [2024-11-16 23:49:32,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=257, PETRI_PLACES=123, PETRI_TRANSITIONS=120} [2024-11-16 23:49:32,229 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, -1 predicate places. [2024-11-16 23:49:32,229 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 120 transitions, 257 flow [2024-11-16 23:49:32,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:32,230 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:32,230 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:32,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:49:32,230 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:49:32,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:32,231 INFO L85 PathProgramCache]: Analyzing trace with hash -2096944257, now seen corresponding path program 1 times [2024-11-16 23:49:32,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:32,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799903364] [2024-11-16 23:49:32,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:32,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:32,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:32,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:32,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799903364] [2024-11-16 23:49:32,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799903364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:32,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:32,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:49:32,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134113236] [2024-11-16 23:49:32,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:32,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:49:32,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:32,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:49:32,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:49:32,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 125 [2024-11-16 23:49:32,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 120 transitions, 257 flow. Second operand has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:32,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:32,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 125 [2024-11-16 23:49:32,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:32,897 INFO L124 PetriNetUnfolderBase]: 101/549 cut-off events. [2024-11-16 23:49:32,897 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-16 23:49:32,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 823 conditions, 549 events. 101/549 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2823 event pairs, 37 based on Foata normal form. 0/495 useless extension candidates. Maximal degree in co-relation 699. Up to 195 conditions per place. [2024-11-16 23:49:32,902 INFO L140 encePairwiseOnDemand]: 114/125 looper letters, 33 selfloop transitions, 22 changer transitions 0/149 dead transitions. [2024-11-16 23:49:32,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 149 transitions, 425 flow [2024-11-16 23:49:32,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:49:32,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:49:32,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 632 transitions. [2024-11-16 23:49:32,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8426666666666667 [2024-11-16 23:49:32,905 INFO L175 Difference]: Start difference. First operand has 123 places, 120 transitions, 257 flow. Second operand 6 states and 632 transitions. [2024-11-16 23:49:32,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 149 transitions, 425 flow [2024-11-16 23:49:32,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 149 transitions, 425 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:49:32,909 INFO L231 Difference]: Finished difference. Result has 133 places, 141 transitions, 407 flow [2024-11-16 23:49:32,910 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=407, PETRI_PLACES=133, PETRI_TRANSITIONS=141} [2024-11-16 23:49:32,911 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 9 predicate places. [2024-11-16 23:49:32,911 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 141 transitions, 407 flow [2024-11-16 23:49:32,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:32,912 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:32,912 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:32,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:49:32,912 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:49:32,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:32,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1748954520, now seen corresponding path program 1 times [2024-11-16 23:49:32,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:32,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376786395] [2024-11-16 23:49:32,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:32,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:32,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:32,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376786395] [2024-11-16 23:49:32,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376786395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:32,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:32,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:49:32,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360389925] [2024-11-16 23:49:32,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:32,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:49:32,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:32,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:49:32,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:49:33,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 125 [2024-11-16 23:49:33,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 141 transitions, 407 flow. Second operand has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:33,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:33,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 125 [2024-11-16 23:49:33,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:33,113 INFO L124 PetriNetUnfolderBase]: 48/380 cut-off events. [2024-11-16 23:49:33,113 INFO L125 PetriNetUnfolderBase]: For 39/47 co-relation queries the response was YES. [2024-11-16 23:49:33,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 620 conditions, 380 events. 48/380 cut-off events. For 39/47 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1502 event pairs, 0 based on Foata normal form. 2/359 useless extension candidates. Maximal degree in co-relation 492. Up to 49 conditions per place. [2024-11-16 23:49:33,116 INFO L140 encePairwiseOnDemand]: 117/125 looper letters, 15 selfloop transitions, 2 changer transitions 5/148 dead transitions. [2024-11-16 23:49:33,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 148 transitions, 465 flow [2024-11-16 23:49:33,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:49:33,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:49:33,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 665 transitions. [2024-11-16 23:49:33,118 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8866666666666667 [2024-11-16 23:49:33,119 INFO L175 Difference]: Start difference. First operand has 133 places, 141 transitions, 407 flow. Second operand 6 states and 665 transitions. [2024-11-16 23:49:33,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 148 transitions, 465 flow [2024-11-16 23:49:33,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 148 transitions, 465 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:49:33,124 INFO L231 Difference]: Finished difference. Result has 142 places, 141 transitions, 425 flow [2024-11-16 23:49:33,124 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=425, PETRI_PLACES=142, PETRI_TRANSITIONS=141} [2024-11-16 23:49:33,126 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 18 predicate places. [2024-11-16 23:49:33,126 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 141 transitions, 425 flow [2024-11-16 23:49:33,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:33,126 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:33,126 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:33,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:49:33,128 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:49:33,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:33,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2039881138, now seen corresponding path program 1 times [2024-11-16 23:49:33,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:33,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283594732] [2024-11-16 23:49:33,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:33,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:33,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:33,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:33,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283594732] [2024-11-16 23:49:33,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283594732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:33,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:33,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:49:33,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48389424] [2024-11-16 23:49:33,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:33,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:49:33,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:33,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:49:33,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:49:33,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 125 [2024-11-16 23:49:33,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 141 transitions, 425 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:33,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:33,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 125 [2024-11-16 23:49:33,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:33,206 INFO L124 PetriNetUnfolderBase]: 24/270 cut-off events. [2024-11-16 23:49:33,206 INFO L125 PetriNetUnfolderBase]: For 33/44 co-relation queries the response was YES. [2024-11-16 23:49:33,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 270 events. 24/270 cut-off events. For 33/44 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 872 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 363. Up to 49 conditions per place. [2024-11-16 23:49:33,208 INFO L140 encePairwiseOnDemand]: 121/125 looper letters, 7 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-11-16 23:49:33,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 139 transitions, 439 flow [2024-11-16 23:49:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:49:33,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:49:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-11-16 23:49:33,209 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9173333333333333 [2024-11-16 23:49:33,209 INFO L175 Difference]: Start difference. First operand has 142 places, 141 transitions, 425 flow. Second operand 3 states and 344 transitions. [2024-11-16 23:49:33,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 139 transitions, 439 flow [2024-11-16 23:49:33,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 139 transitions, 425 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-16 23:49:33,217 INFO L231 Difference]: Finished difference. Result has 134 places, 139 transitions, 411 flow [2024-11-16 23:49:33,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=411, PETRI_PLACES=134, PETRI_TRANSITIONS=139} [2024-11-16 23:49:33,217 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 10 predicate places. [2024-11-16 23:49:33,217 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 139 transitions, 411 flow [2024-11-16 23:49:33,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:33,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:33,218 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:33,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:49:33,218 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:49:33,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:33,219 INFO L85 PathProgramCache]: Analyzing trace with hash -944836333, now seen corresponding path program 1 times [2024-11-16 23:49:33,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:33,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975596207] [2024-11-16 23:49:33,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:33,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:33,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:33,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:33,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975596207] [2024-11-16 23:49:33,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975596207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:33,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:33,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:49:33,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667483472] [2024-11-16 23:49:33,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:33,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:49:33,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:33,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:49:33,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:49:33,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 125 [2024-11-16 23:49:33,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 139 transitions, 411 flow. Second operand has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:33,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:33,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 125 [2024-11-16 23:49:33,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:33,311 INFO L124 PetriNetUnfolderBase]: 24/269 cut-off events. [2024-11-16 23:49:33,311 INFO L125 PetriNetUnfolderBase]: For 33/44 co-relation queries the response was YES. [2024-11-16 23:49:33,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 269 events. 24/269 cut-off events. For 33/44 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 855 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 352. Up to 49 conditions per place. [2024-11-16 23:49:33,312 INFO L140 encePairwiseOnDemand]: 122/125 looper letters, 8 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2024-11-16 23:49:33,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 138 transitions, 429 flow [2024-11-16 23:49:33,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:49:33,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:49:33,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-11-16 23:49:33,313 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9173333333333333 [2024-11-16 23:49:33,313 INFO L175 Difference]: Start difference. First operand has 134 places, 139 transitions, 411 flow. Second operand 3 states and 344 transitions. [2024-11-16 23:49:33,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 138 transitions, 429 flow [2024-11-16 23:49:33,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 138 transitions, 425 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:49:33,316 INFO L231 Difference]: Finished difference. Result has 133 places, 138 transitions, 409 flow [2024-11-16 23:49:33,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=409, PETRI_PLACES=133, PETRI_TRANSITIONS=138} [2024-11-16 23:49:33,318 INFO L277 CegarLoopForPetriNet]: 124 programPoint places, 9 predicate places. [2024-11-16 23:49:33,318 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 138 transitions, 409 flow [2024-11-16 23:49:33,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:33,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:33,318 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:33,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:49:33,319 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-11-16 23:49:33,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:33,319 INFO L85 PathProgramCache]: Analyzing trace with hash 2018698645, now seen corresponding path program 1 times [2024-11-16 23:49:33,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:33,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310897974] [2024-11-16 23:49:33,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:33,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:49:33,344 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:49:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:49:33,378 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:49:33,378 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:49:33,379 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-11-16 23:49:33,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-11-16 23:49:33,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-11-16 23:49:33,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-11-16 23:49:33,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-11-16 23:49:33,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-11-16 23:49:33,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-11-16 23:49:33,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-11-16 23:49:33,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-11-16 23:49:33,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-11-16 23:49:33,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-11-16 23:49:33,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-11-16 23:49:33,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-11-16 23:49:33,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-11-16 23:49:33,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-11-16 23:49:33,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:49:33,386 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:33,388 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:49:33,388 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:49:33,415 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 23:49:33,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 165 transitions, 346 flow [2024-11-16 23:49:33,441 INFO L124 PetriNetUnfolderBase]: 11/276 cut-off events. [2024-11-16 23:49:33,441 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-16 23:49:33,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 288 conditions, 276 events. 11/276 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 638 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 164. Up to 8 conditions per place. [2024-11-16 23:49:33,442 INFO L82 GeneralOperation]: Start removeDead. Operand has 165 places, 165 transitions, 346 flow [2024-11-16 23:49:33,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 165 transitions, 346 flow [2024-11-16 23:49:33,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:49:33,446 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;@20b6ad25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:49:33,446 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-16 23:49:33,448 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:49:33,450 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2024-11-16 23:49:33,450 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:49:33,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:33,450 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:33,450 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:49:33,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:33,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1344068862, now seen corresponding path program 1 times [2024-11-16 23:49:33,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:33,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603741914] [2024-11-16 23:49:33,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:33,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:33,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:33,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:33,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603741914] [2024-11-16 23:49:33,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603741914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:33,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:33,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:49:33,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473018822] [2024-11-16 23:49:33,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:33,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:49:33,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:33,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:49:33,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:49:33,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 165 [2024-11-16 23:49:33,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 165 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:33,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:33,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 165 [2024-11-16 23:49:33,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:33,601 INFO L124 PetriNetUnfolderBase]: 81/1032 cut-off events. [2024-11-16 23:49:33,601 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-16 23:49:33,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1223 conditions, 1032 events. 81/1032 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6521 event pairs, 78 based on Foata normal form. 39/936 useless extension candidates. Maximal degree in co-relation 880. Up to 162 conditions per place. [2024-11-16 23:49:33,609 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 15 selfloop transitions, 2 changer transitions 1/161 dead transitions. [2024-11-16 23:49:33,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 161 transitions, 372 flow [2024-11-16 23:49:33,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:49:33,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:49:33,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2024-11-16 23:49:33,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9151515151515152 [2024-11-16 23:49:33,610 INFO L175 Difference]: Start difference. First operand has 165 places, 165 transitions, 346 flow. Second operand 3 states and 453 transitions. [2024-11-16 23:49:33,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 161 transitions, 372 flow [2024-11-16 23:49:33,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 161 transitions, 372 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:49:33,612 INFO L231 Difference]: Finished difference. Result has 166 places, 160 transitions, 340 flow [2024-11-16 23:49:33,613 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=166, PETRI_TRANSITIONS=160} [2024-11-16 23:49:33,614 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 1 predicate places. [2024-11-16 23:49:33,614 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 160 transitions, 340 flow [2024-11-16 23:49:33,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:33,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:33,615 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:33,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:49:33,615 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:49:33,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:33,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1719671832, now seen corresponding path program 1 times [2024-11-16 23:49:33,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:33,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290076910] [2024-11-16 23:49:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:33,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:33,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:33,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:33,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290076910] [2024-11-16 23:49:33,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290076910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:33,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:33,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:49:33,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567801430] [2024-11-16 23:49:33,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:33,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:49:33,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:33,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:49:33,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:49:33,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 165 [2024-11-16 23:49:33,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 160 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:33,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:33,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 165 [2024-11-16 23:49:33,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:33,776 INFO L124 PetriNetUnfolderBase]: 132/1106 cut-off events. [2024-11-16 23:49:33,776 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-16 23:49:33,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 1106 events. 132/1106 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6935 event pairs, 41 based on Foata normal form. 0/1020 useless extension candidates. Maximal degree in co-relation 1348. Up to 227 conditions per place. [2024-11-16 23:49:33,782 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 20 selfloop transitions, 3 changer transitions 0/165 dead transitions. [2024-11-16 23:49:33,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 165 transitions, 401 flow [2024-11-16 23:49:33,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:49:33,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:49:33,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 458 transitions. [2024-11-16 23:49:33,783 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9252525252525252 [2024-11-16 23:49:33,783 INFO L175 Difference]: Start difference. First operand has 166 places, 160 transitions, 340 flow. Second operand 3 states and 458 transitions. [2024-11-16 23:49:33,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 165 transitions, 401 flow [2024-11-16 23:49:33,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 165 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:49:33,785 INFO L231 Difference]: Finished difference. Result has 163 places, 160 transitions, 351 flow [2024-11-16 23:49:33,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=163, PETRI_TRANSITIONS=160} [2024-11-16 23:49:33,786 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, -2 predicate places. [2024-11-16 23:49:33,787 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 160 transitions, 351 flow [2024-11-16 23:49:33,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:33,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:33,787 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:33,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:49:33,788 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:49:33,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:33,788 INFO L85 PathProgramCache]: Analyzing trace with hash -15419804, now seen corresponding path program 1 times [2024-11-16 23:49:33,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:33,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362777623] [2024-11-16 23:49:33,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:33,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:33,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:33,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:33,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362777623] [2024-11-16 23:49:33,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362777623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:33,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:33,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:49:33,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134535106] [2024-11-16 23:49:33,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:33,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:49:33,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:33,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:49:33,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:49:34,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 165 [2024-11-16 23:49:34,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 160 transitions, 351 flow. Second operand has 6 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:34,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:34,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 165 [2024-11-16 23:49:34,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:34,550 INFO L124 PetriNetUnfolderBase]: 1884/5531 cut-off events. [2024-11-16 23:49:34,550 INFO L125 PetriNetUnfolderBase]: For 123/123 co-relation queries the response was YES. [2024-11-16 23:49:34,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8873 conditions, 5531 events. 1884/5531 cut-off events. For 123/123 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 49335 event pairs, 750 based on Foata normal form. 0/5041 useless extension candidates. Maximal degree in co-relation 5644. Up to 2663 conditions per place. [2024-11-16 23:49:34,646 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 50 selfloop transitions, 38 changer transitions 0/214 dead transitions. [2024-11-16 23:49:34,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 214 transitions, 640 flow [2024-11-16 23:49:34,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:49:34,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:49:34,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 857 transitions. [2024-11-16 23:49:34,649 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8656565656565657 [2024-11-16 23:49:34,649 INFO L175 Difference]: Start difference. First operand has 163 places, 160 transitions, 351 flow. Second operand 6 states and 857 transitions. [2024-11-16 23:49:34,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 214 transitions, 640 flow [2024-11-16 23:49:34,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 214 transitions, 640 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:49:34,653 INFO L231 Difference]: Finished difference. Result has 173 places, 197 transitions, 605 flow [2024-11-16 23:49:34,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=605, PETRI_PLACES=173, PETRI_TRANSITIONS=197} [2024-11-16 23:49:34,654 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 8 predicate places. [2024-11-16 23:49:34,654 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 197 transitions, 605 flow [2024-11-16 23:49:34,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:34,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:34,655 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:34,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:49:34,655 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:49:34,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:34,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1646205752, now seen corresponding path program 1 times [2024-11-16 23:49:34,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:34,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662950021] [2024-11-16 23:49:34,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:34,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:34,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:34,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:34,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662950021] [2024-11-16 23:49:34,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662950021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:34,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:34,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:49:34,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638945153] [2024-11-16 23:49:34,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:34,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:49:34,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:34,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:49:34,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:49:34,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 165 [2024-11-16 23:49:34,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 197 transitions, 605 flow. Second operand has 5 states, 5 states have (on average 144.4) internal successors, (722), 5 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:34,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:34,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 165 [2024-11-16 23:49:34,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:35,186 INFO L124 PetriNetUnfolderBase]: 826/4214 cut-off events. [2024-11-16 23:49:35,186 INFO L125 PetriNetUnfolderBase]: For 428/577 co-relation queries the response was YES. [2024-11-16 23:49:35,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6714 conditions, 4214 events. 826/4214 cut-off events. For 428/577 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 38203 event pairs, 357 based on Foata normal form. 1/3839 useless extension candidates. Maximal degree in co-relation 2811. Up to 1077 conditions per place. [2024-11-16 23:49:35,210 INFO L140 encePairwiseOnDemand]: 157/165 looper letters, 20 selfloop transitions, 2 changer transitions 5/205 dead transitions. [2024-11-16 23:49:35,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 205 transitions, 675 flow [2024-11-16 23:49:35,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:49:35,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:49:35,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 886 transitions. [2024-11-16 23:49:35,212 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8949494949494949 [2024-11-16 23:49:35,212 INFO L175 Difference]: Start difference. First operand has 173 places, 197 transitions, 605 flow. Second operand 6 states and 886 transitions. [2024-11-16 23:49:35,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 205 transitions, 675 flow [2024-11-16 23:49:35,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 205 transitions, 675 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:49:35,218 INFO L231 Difference]: Finished difference. Result has 182 places, 198 transitions, 627 flow [2024-11-16 23:49:35,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=627, PETRI_PLACES=182, PETRI_TRANSITIONS=198} [2024-11-16 23:49:35,218 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 17 predicate places. [2024-11-16 23:49:35,219 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 198 transitions, 627 flow [2024-11-16 23:49:35,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 144.4) internal successors, (722), 5 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:35,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:35,219 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:35,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:49:35,219 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:49:35,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:35,220 INFO L85 PathProgramCache]: Analyzing trace with hash -380010956, now seen corresponding path program 1 times [2024-11-16 23:49:35,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:35,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279944510] [2024-11-16 23:49:35,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:35,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:35,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:35,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:35,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279944510] [2024-11-16 23:49:35,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279944510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:35,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:35,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:49:35,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934221412] [2024-11-16 23:49:35,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:35,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:49:35,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:35,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:49:35,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:49:35,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 165 [2024-11-16 23:49:35,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 198 transitions, 627 flow. Second operand has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:35,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:35,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 165 [2024-11-16 23:49:35,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:35,616 INFO L124 PetriNetUnfolderBase]: 818/3906 cut-off events. [2024-11-16 23:49:35,616 INFO L125 PetriNetUnfolderBase]: For 725/1026 co-relation queries the response was YES. [2024-11-16 23:49:35,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6960 conditions, 3906 events. 818/3906 cut-off events. For 725/1026 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 36816 event pairs, 168 based on Foata normal form. 1/3602 useless extension candidates. Maximal degree in co-relation 6860. Up to 1090 conditions per place. [2024-11-16 23:49:35,637 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 29 selfloop transitions, 10 changer transitions 0/215 dead transitions. [2024-11-16 23:49:35,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 215 transitions, 750 flow [2024-11-16 23:49:35,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:49:35,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:49:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 463 transitions. [2024-11-16 23:49:35,638 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9353535353535354 [2024-11-16 23:49:35,638 INFO L175 Difference]: Start difference. First operand has 182 places, 198 transitions, 627 flow. Second operand 3 states and 463 transitions. [2024-11-16 23:49:35,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 215 transitions, 750 flow [2024-11-16 23:49:35,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 215 transitions, 738 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-16 23:49:35,648 INFO L231 Difference]: Finished difference. Result has 179 places, 208 transitions, 703 flow [2024-11-16 23:49:35,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=703, PETRI_PLACES=179, PETRI_TRANSITIONS=208} [2024-11-16 23:49:35,648 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 14 predicate places. [2024-11-16 23:49:35,649 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 208 transitions, 703 flow [2024-11-16 23:49:35,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:35,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:35,649 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:35,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 23:49:35,649 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:49:35,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:35,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1614304903, now seen corresponding path program 1 times [2024-11-16 23:49:35,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:35,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135178378] [2024-11-16 23:49:35,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:35,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:35,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:35,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:35,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135178378] [2024-11-16 23:49:35,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135178378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:35,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:35,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:49:35,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673615223] [2024-11-16 23:49:35,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:35,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:49:35,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:35,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:49:35,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:49:35,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 165 [2024-11-16 23:49:35,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 208 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:35,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:35,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 165 [2024-11-16 23:49:35,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:36,176 INFO L124 PetriNetUnfolderBase]: 912/4482 cut-off events. [2024-11-16 23:49:36,176 INFO L125 PetriNetUnfolderBase]: For 1007/1340 co-relation queries the response was YES. [2024-11-16 23:49:36,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8081 conditions, 4482 events. 912/4482 cut-off events. For 1007/1340 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 43909 event pairs, 181 based on Foata normal form. 9/4137 useless extension candidates. Maximal degree in co-relation 4650. Up to 1231 conditions per place. [2024-11-16 23:49:36,208 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 26 selfloop transitions, 9 changer transitions 0/219 dead transitions. [2024-11-16 23:49:36,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 219 transitions, 819 flow [2024-11-16 23:49:36,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:49:36,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:49:36,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2024-11-16 23:49:36,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9292929292929293 [2024-11-16 23:49:36,210 INFO L175 Difference]: Start difference. First operand has 179 places, 208 transitions, 703 flow. Second operand 3 states and 460 transitions. [2024-11-16 23:49:36,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 219 transitions, 819 flow [2024-11-16 23:49:36,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 219 transitions, 793 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:49:36,221 INFO L231 Difference]: Finished difference. Result has 181 places, 215 transitions, 759 flow [2024-11-16 23:49:36,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=759, PETRI_PLACES=181, PETRI_TRANSITIONS=215} [2024-11-16 23:49:36,221 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 16 predicate places. [2024-11-16 23:49:36,221 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 215 transitions, 759 flow [2024-11-16 23:49:36,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:36,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:36,222 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:36,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:49:36,222 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:49:36,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:36,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1704544570, now seen corresponding path program 1 times [2024-11-16 23:49:36,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:36,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740595922] [2024-11-16 23:49:36,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:36,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:36,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:49:36,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:36,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740595922] [2024-11-16 23:49:36,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740595922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:36,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:36,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:49:36,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165705107] [2024-11-16 23:49:36,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:36,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:49:36,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:36,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:49:36,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:49:36,579 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 165 [2024-11-16 23:49:36,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 215 transitions, 759 flow. Second operand has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:36,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:36,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 165 [2024-11-16 23:49:36,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:37,694 INFO L124 PetriNetUnfolderBase]: 3455/12398 cut-off events. [2024-11-16 23:49:37,694 INFO L125 PetriNetUnfolderBase]: For 3172/3396 co-relation queries the response was YES. [2024-11-16 23:49:37,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25380 conditions, 12398 events. 3455/12398 cut-off events. For 3172/3396 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 139789 event pairs, 1206 based on Foata normal form. 8/11532 useless extension candidates. Maximal degree in co-relation 23312. Up to 4790 conditions per place. [2024-11-16 23:49:37,770 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 84 selfloop transitions, 38 changer transitions 0/270 dead transitions. [2024-11-16 23:49:37,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 270 transitions, 1183 flow [2024-11-16 23:49:37,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:49:37,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:49:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 868 transitions. [2024-11-16 23:49:37,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8767676767676768 [2024-11-16 23:49:37,772 INFO L175 Difference]: Start difference. First operand has 181 places, 215 transitions, 759 flow. Second operand 6 states and 868 transitions. [2024-11-16 23:49:37,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 270 transitions, 1183 flow [2024-11-16 23:49:37,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 270 transitions, 1165 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:49:37,787 INFO L231 Difference]: Finished difference. Result has 189 places, 252 transitions, 1059 flow [2024-11-16 23:49:37,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1059, PETRI_PLACES=189, PETRI_TRANSITIONS=252} [2024-11-16 23:49:37,788 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 24 predicate places. [2024-11-16 23:49:37,788 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 252 transitions, 1059 flow [2024-11-16 23:49:37,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:37,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:37,789 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:37,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:49:37,789 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:49:37,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:37,790 INFO L85 PathProgramCache]: Analyzing trace with hash 692961672, now seen corresponding path program 1 times [2024-11-16 23:49:37,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:37,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379360772] [2024-11-16 23:49:37,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:37,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:37,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:37,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:37,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379360772] [2024-11-16 23:49:37,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379360772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:37,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:37,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:49:37,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454449780] [2024-11-16 23:49:37,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:37,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:49:37,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:37,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:49:37,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:49:38,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 165 [2024-11-16 23:49:38,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 252 transitions, 1059 flow. Second operand has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:38,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:38,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 165 [2024-11-16 23:49:38,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:40,375 INFO L124 PetriNetUnfolderBase]: 6373/20099 cut-off events. [2024-11-16 23:49:40,375 INFO L125 PetriNetUnfolderBase]: For 9925/10256 co-relation queries the response was YES. [2024-11-16 23:49:40,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48878 conditions, 20099 events. 6373/20099 cut-off events. For 9925/10256 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 225632 event pairs, 1628 based on Foata normal form. 12/18709 useless extension candidates. Maximal degree in co-relation 42926. Up to 8149 conditions per place. [2024-11-16 23:49:40,512 INFO L140 encePairwiseOnDemand]: 146/165 looper letters, 139 selfloop transitions, 118 changer transitions 0/407 dead transitions. [2024-11-16 23:49:40,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 407 transitions, 2447 flow [2024-11-16 23:49:40,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:49:40,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:49:40,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 894 transitions. [2024-11-16 23:49:40,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9030303030303031 [2024-11-16 23:49:40,518 INFO L175 Difference]: Start difference. First operand has 189 places, 252 transitions, 1059 flow. Second operand 6 states and 894 transitions. [2024-11-16 23:49:40,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 407 transitions, 2447 flow [2024-11-16 23:49:40,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 407 transitions, 2315 flow, removed 66 selfloop flow, removed 0 redundant places. [2024-11-16 23:49:40,574 INFO L231 Difference]: Finished difference. Result has 198 places, 364 transitions, 2125 flow [2024-11-16 23:49:40,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=995, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2125, PETRI_PLACES=198, PETRI_TRANSITIONS=364} [2024-11-16 23:49:40,576 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 33 predicate places. [2024-11-16 23:49:40,576 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 364 transitions, 2125 flow [2024-11-16 23:49:40,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.83333333333334) internal successors, (797), 6 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:40,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:40,577 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:40,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:49:40,577 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:49:40,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:40,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1830028820, now seen corresponding path program 1 times [2024-11-16 23:49:40,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:40,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140753397] [2024-11-16 23:49:40,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:40,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:40,614 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-16 23:49:40,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:40,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140753397] [2024-11-16 23:49:40,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140753397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:40,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:40,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:49:40,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275745255] [2024-11-16 23:49:40,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:40,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:49:40,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:40,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:49:40,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:49:40,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 165 [2024-11-16 23:49:40,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 364 transitions, 2125 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:40,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:40,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 165 [2024-11-16 23:49:40,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:42,217 INFO L124 PetriNetUnfolderBase]: 4306/15291 cut-off events. [2024-11-16 23:49:42,218 INFO L125 PetriNetUnfolderBase]: For 11419/13301 co-relation queries the response was YES. [2024-11-16 23:49:42,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41845 conditions, 15291 events. 4306/15291 cut-off events. For 11419/13301 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 174140 event pairs, 356 based on Foata normal form. 12/14606 useless extension candidates. Maximal degree in co-relation 37716. Up to 3717 conditions per place. [2024-11-16 23:49:42,320 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 28 selfloop transitions, 11 changer transitions 0/374 dead transitions. [2024-11-16 23:49:42,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 374 transitions, 2240 flow [2024-11-16 23:49:42,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:49:42,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:49:42,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2024-11-16 23:49:42,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9272727272727272 [2024-11-16 23:49:42,322 INFO L175 Difference]: Start difference. First operand has 198 places, 364 transitions, 2125 flow. Second operand 3 states and 459 transitions. [2024-11-16 23:49:42,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 374 transitions, 2240 flow [2024-11-16 23:49:42,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 374 transitions, 2204 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-16 23:49:42,664 INFO L231 Difference]: Finished difference. Result has 202 places, 371 transitions, 2177 flow [2024-11-16 23:49:42,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2089, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2177, PETRI_PLACES=202, PETRI_TRANSITIONS=371} [2024-11-16 23:49:42,664 INFO L277 CegarLoopForPetriNet]: 165 programPoint places, 37 predicate places. [2024-11-16 23:49:42,665 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 371 transitions, 2177 flow [2024-11-16 23:49:42,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:42,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:42,666 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:42,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 23:49:42,666 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-16 23:49:42,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:42,667 INFO L85 PathProgramCache]: Analyzing trace with hash -424949228, now seen corresponding path program 1 times [2024-11-16 23:49:42,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:42,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343178812] [2024-11-16 23:49:42,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:42,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:49:42,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:49:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:49:42,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:49:42,715 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:49:42,716 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-16 23:49:42,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-16 23:49:42,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-16 23:49:42,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-16 23:49:42,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-16 23:49:42,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-16 23:49:42,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-16 23:49:42,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-16 23:49:42,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-16 23:49:42,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-16 23:49:42,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-16 23:49:42,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-16 23:49:42,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-16 23:49:42,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-16 23:49:42,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-16 23:49:42,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-16 23:49:42,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-16 23:49:42,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-16 23:49:42,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-16 23:49:42,719 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-16 23:49:42,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 23:49:42,719 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:42,720 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:49:42,720 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:49:42,756 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-16 23:49:42,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 205 transitions, 437 flow [2024-11-16 23:49:42,813 INFO L124 PetriNetUnfolderBase]: 21/445 cut-off events. [2024-11-16 23:49:42,814 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2024-11-16 23:49:42,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 445 events. 21/445 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1353 event pairs, 1 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 284. Up to 16 conditions per place. [2024-11-16 23:49:42,815 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 205 transitions, 437 flow [2024-11-16 23:49:42,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 206 places, 205 transitions, 437 flow [2024-11-16 23:49:42,820 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:49:42,820 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;@20b6ad25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:49:42,820 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-16 23:49:42,822 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:49:42,823 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2024-11-16 23:49:42,823 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:49:42,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:42,823 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:42,823 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:49:42,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:42,823 INFO L85 PathProgramCache]: Analyzing trace with hash 2100090735, now seen corresponding path program 1 times [2024-11-16 23:49:42,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:42,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421817565] [2024-11-16 23:49:42,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:42,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:42,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:42,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421817565] [2024-11-16 23:49:42,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421817565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:42,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:42,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:49:42,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492590974] [2024-11-16 23:49:42,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:42,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:49:42,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:42,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:49:42,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:49:42,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 205 [2024-11-16 23:49:42,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 205 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:42,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:42,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 205 [2024-11-16 23:49:42,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:43,554 INFO L124 PetriNetUnfolderBase]: 656/5135 cut-off events. [2024-11-16 23:49:43,554 INFO L125 PetriNetUnfolderBase]: For 337/337 co-relation queries the response was YES. [2024-11-16 23:49:43,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6346 conditions, 5135 events. 656/5135 cut-off events. For 337/337 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 51549 event pairs, 643 based on Foata normal form. 190/4662 useless extension candidates. Maximal degree in co-relation 4738. Up to 1052 conditions per place. [2024-11-16 23:49:43,573 INFO L140 encePairwiseOnDemand]: 199/205 looper letters, 20 selfloop transitions, 2 changer transitions 1/201 dead transitions. [2024-11-16 23:49:43,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 201 transitions, 473 flow [2024-11-16 23:49:43,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:49:43,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:49:43,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 563 transitions. [2024-11-16 23:49:43,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9154471544715447 [2024-11-16 23:49:43,575 INFO L175 Difference]: Start difference. First operand has 206 places, 205 transitions, 437 flow. Second operand 3 states and 563 transitions. [2024-11-16 23:49:43,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 201 transitions, 473 flow [2024-11-16 23:49:43,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 201 transitions, 473 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:49:43,577 INFO L231 Difference]: Finished difference. Result has 207 places, 200 transitions, 431 flow [2024-11-16 23:49:43,578 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=431, PETRI_PLACES=207, PETRI_TRANSITIONS=200} [2024-11-16 23:49:43,578 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, 1 predicate places. [2024-11-16 23:49:43,579 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 200 transitions, 431 flow [2024-11-16 23:49:43,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:43,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:43,580 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:43,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 23:49:43,580 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:49:43,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:43,580 INFO L85 PathProgramCache]: Analyzing trace with hash 119535576, now seen corresponding path program 1 times [2024-11-16 23:49:43,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:43,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689845598] [2024-11-16 23:49:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:43,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:43,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:43,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:43,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689845598] [2024-11-16 23:49:43,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689845598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:43,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:43,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:49:43,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317389538] [2024-11-16 23:49:43,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:43,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:49:43,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:43,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:49:43,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:49:43,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 205 [2024-11-16 23:49:43,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 200 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:43,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:43,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 205 [2024-11-16 23:49:43,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:44,158 INFO L124 PetriNetUnfolderBase]: 1275/6818 cut-off events. [2024-11-16 23:49:44,158 INFO L125 PetriNetUnfolderBase]: For 527/527 co-relation queries the response was YES. [2024-11-16 23:49:44,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9016 conditions, 6818 events. 1275/6818 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 69793 event pairs, 437 based on Foata normal form. 0/6308 useless extension candidates. Maximal degree in co-relation 8974. Up to 1872 conditions per place. [2024-11-16 23:49:44,181 INFO L140 encePairwiseOnDemand]: 197/205 looper letters, 29 selfloop transitions, 4 changer transitions 0/208 dead transitions. [2024-11-16 23:49:44,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 208 transitions, 525 flow [2024-11-16 23:49:44,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:49:44,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:49:44,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2024-11-16 23:49:44,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9235772357723577 [2024-11-16 23:49:44,182 INFO L175 Difference]: Start difference. First operand has 207 places, 200 transitions, 431 flow. Second operand 3 states and 568 transitions. [2024-11-16 23:49:44,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 208 transitions, 525 flow [2024-11-16 23:49:44,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 208 transitions, 521 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:49:44,185 INFO L231 Difference]: Finished difference. Result has 203 places, 200 transitions, 447 flow [2024-11-16 23:49:44,185 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=447, PETRI_PLACES=203, PETRI_TRANSITIONS=200} [2024-11-16 23:49:44,185 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, -3 predicate places. [2024-11-16 23:49:44,185 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 200 transitions, 447 flow [2024-11-16 23:49:44,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.0) internal successors, (534), 3 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:44,186 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:44,186 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:44,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 23:49:44,186 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:49:44,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:44,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1919964017, now seen corresponding path program 1 times [2024-11-16 23:49:44,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:44,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619192800] [2024-11-16 23:49:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:44,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:44,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:44,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:44,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619192800] [2024-11-16 23:49:44,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619192800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:44,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:44,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:49:44,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007257364] [2024-11-16 23:49:44,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:44,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:49:44,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:44,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:49:44,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:49:44,435 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 205 [2024-11-16 23:49:44,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 200 transitions, 447 flow. Second operand has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:44,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:44,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 205 [2024-11-16 23:49:44,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:50,203 INFO L124 PetriNetUnfolderBase]: 25021/56003 cut-off events. [2024-11-16 23:49:50,204 INFO L125 PetriNetUnfolderBase]: For 2353/2353 co-relation queries the response was YES. [2024-11-16 23:49:50,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93347 conditions, 56003 events. 25021/56003 cut-off events. For 2353/2353 co-relation queries the response was YES. Maximal size of possible extension queue 2059. Compared 638314 event pairs, 11507 based on Foata normal form. 0/51083 useless extension candidates. Maximal degree in co-relation 57507. Up to 31346 conditions per place. [2024-11-16 23:49:50,475 INFO L140 encePairwiseOnDemand]: 186/205 looper letters, 67 selfloop transitions, 54 changer transitions 0/279 dead transitions. [2024-11-16 23:49:50,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 279 transitions, 859 flow [2024-11-16 23:49:50,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:49:50,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:49:50,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1082 transitions. [2024-11-16 23:49:50,477 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8796747967479674 [2024-11-16 23:49:50,477 INFO L175 Difference]: Start difference. First operand has 203 places, 200 transitions, 447 flow. Second operand 6 states and 1082 transitions. [2024-11-16 23:49:50,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 279 transitions, 859 flow [2024-11-16 23:49:50,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 279 transitions, 859 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:49:50,482 INFO L231 Difference]: Finished difference. Result has 213 places, 253 transitions, 805 flow [2024-11-16 23:49:50,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=805, PETRI_PLACES=213, PETRI_TRANSITIONS=253} [2024-11-16 23:49:50,482 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, 7 predicate places. [2024-11-16 23:49:50,482 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 253 transitions, 805 flow [2024-11-16 23:49:50,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.5) internal successors, (969), 6 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:50,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:50,483 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:50,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 23:49:50,483 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:49:50,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:50,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1778849240, now seen corresponding path program 1 times [2024-11-16 23:49:50,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:50,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406211323] [2024-11-16 23:49:50,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:50,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:50,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:50,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:50,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406211323] [2024-11-16 23:49:50,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406211323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:50,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:50,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:49:50,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786532689] [2024-11-16 23:49:50,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:50,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:49:50,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:50,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:49:50,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:49:50,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 205 [2024-11-16 23:49:50,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 253 transitions, 805 flow. Second operand has 5 states, 5 states have (on average 180.4) internal successors, (902), 5 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:50,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:50,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 205 [2024-11-16 23:49:50,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:49:54,291 INFO L124 PetriNetUnfolderBase]: 10026/35800 cut-off events. [2024-11-16 23:49:54,291 INFO L125 PetriNetUnfolderBase]: For 4890/6343 co-relation queries the response was YES. [2024-11-16 23:49:54,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59694 conditions, 35800 events. 10026/35800 cut-off events. For 4890/6343 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 442519 event pairs, 5453 based on Foata normal form. 1/32572 useless extension candidates. Maximal degree in co-relation 29094. Up to 12805 conditions per place. [2024-11-16 23:49:54,498 INFO L140 encePairwiseOnDemand]: 197/205 looper letters, 24 selfloop transitions, 2 changer transitions 5/261 dead transitions. [2024-11-16 23:49:54,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 261 transitions, 883 flow [2024-11-16 23:49:54,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:49:54,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:49:54,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1106 transitions. [2024-11-16 23:49:54,501 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8991869918699187 [2024-11-16 23:49:54,501 INFO L175 Difference]: Start difference. First operand has 213 places, 253 transitions, 805 flow. Second operand 6 states and 1106 transitions. [2024-11-16 23:49:54,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 261 transitions, 883 flow [2024-11-16 23:49:54,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 261 transitions, 883 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:49:54,532 INFO L231 Difference]: Finished difference. Result has 222 places, 254 transitions, 827 flow [2024-11-16 23:49:54,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=827, PETRI_PLACES=222, PETRI_TRANSITIONS=254} [2024-11-16 23:49:54,533 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, 16 predicate places. [2024-11-16 23:49:54,533 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 254 transitions, 827 flow [2024-11-16 23:49:54,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 180.4) internal successors, (902), 5 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:54,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:49:54,533 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:49:54,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 23:49:54,534 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:49:54,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:49:54,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1902487398, now seen corresponding path program 1 times [2024-11-16 23:49:54,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:49:54,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318361806] [2024-11-16 23:49:54,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:49:54,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:49:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:49:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:49:54,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:49:54,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318361806] [2024-11-16 23:49:54,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318361806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:49:54,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:49:54,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:49:54,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654155041] [2024-11-16 23:49:54,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:49:54,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:49:54,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:49:54,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:49:54,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:49:54,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 205 [2024-11-16 23:49:54,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 254 transitions, 827 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:49:54,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:49:54,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 205 [2024-11-16 23:49:54,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:50:01,981 INFO L124 PetriNetUnfolderBase]: 18749/64001 cut-off events. [2024-11-16 23:50:01,981 INFO L125 PetriNetUnfolderBase]: For 16146/23111 co-relation queries the response was YES. [2024-11-16 23:50:02,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117439 conditions, 64001 events. 18749/64001 cut-off events. For 16146/23111 co-relation queries the response was YES. Maximal size of possible extension queue 2323. Compared 907625 event pairs, 5722 based on Foata normal form. 15/57990 useless extension candidates. Maximal degree in co-relation 117338. Up to 20493 conditions per place. [2024-11-16 23:50:02,521 INFO L140 encePairwiseOnDemand]: 184/205 looper letters, 44 selfloop transitions, 15 changer transitions 0/280 dead transitions. [2024-11-16 23:50:02,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 280 transitions, 1018 flow [2024-11-16 23:50:02,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:50:02,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:50:02,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 572 transitions. [2024-11-16 23:50:02,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9300813008130081 [2024-11-16 23:50:02,523 INFO L175 Difference]: Start difference. First operand has 222 places, 254 transitions, 827 flow. Second operand 3 states and 572 transitions. [2024-11-16 23:50:02,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 280 transitions, 1018 flow [2024-11-16 23:50:02,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 280 transitions, 1006 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-16 23:50:02,952 INFO L231 Difference]: Finished difference. Result has 219 places, 269 transitions, 947 flow [2024-11-16 23:50:02,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=947, PETRI_PLACES=219, PETRI_TRANSITIONS=269} [2024-11-16 23:50:02,953 INFO L277 CegarLoopForPetriNet]: 206 programPoint places, 13 predicate places. [2024-11-16 23:50:02,953 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 269 transitions, 947 flow [2024-11-16 23:50:02,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:50:02,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:50:02,953 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:50:02,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 23:50:02,953 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-16 23:50:02,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:50:02,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1697749599, now seen corresponding path program 1 times [2024-11-16 23:50:02,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:50:02,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69342036] [2024-11-16 23:50:02,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:50:02,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:50:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:50:02,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:50:02,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:50:02,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69342036] [2024-11-16 23:50:02,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69342036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:50:02,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:50:02,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:50:02,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736088813] [2024-11-16 23:50:02,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:50:02,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:50:02,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:50:02,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:50:02,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:50:03,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 205 [2024-11-16 23:50:03,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 269 transitions, 947 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:50:03,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:50:03,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 205 [2024-11-16 23:50:03,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand