./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f 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-ext/36_stack_cas_p0_vs_concur.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 5bf99dd5722e6551de991a345b21615b777cf7cef3d452afb8b79773fd45d3d8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:09:02,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:09:02,296 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:09:02,303 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:09:02,307 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:09:02,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:09:02,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:09:02,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:09:02,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:09:02,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:09:02,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:09:02,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:09:02,334 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:09:02,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:09:02,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:09:02,335 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:09:02,335 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:09:02,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:09:02,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:09:02,336 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:09:02,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:09:02,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:09:02,337 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:09:02,337 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:09:02,338 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:09:02,338 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:09:02,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:09:02,338 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:09:02,339 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:09:02,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:09:02,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:09:02,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:09:02,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:09:02,340 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:09:02,340 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:09:02,341 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:09:02,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:09:02,341 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:09:02,341 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:09:02,341 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:09:02,342 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:09:02,342 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bf99dd5722e6551de991a345b21615b777cf7cef3d452afb8b79773fd45d3d8 [2024-11-10 14:09:02,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:09:02,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:09:02,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:09:02,577 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:09:02,577 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:09:02,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2024-11-10 14:09:03,954 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:09:04,140 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:09:04,141 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur.i [2024-11-10 14:09:04,156 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a1a6dd8d/aa016c6285294952a2794913441a0f3a/FLAG1f9c22877 [2024-11-10 14:09:04,167 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a1a6dd8d/aa016c6285294952a2794913441a0f3a [2024-11-10 14:09:04,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:09:04,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:09:04,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:09:04,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:09:04,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:09:04,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707409ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04, skipping insertion in model container [2024-11-10 14:09:04,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,210 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:09:04,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:09:04,562 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:09:04,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:09:04,655 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:09:04,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04 WrapperNode [2024-11-10 14:09:04,656 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:09:04,657 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:09:04,657 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:09:04,657 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:09:04,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,710 INFO L138 Inliner]: procedures = 172, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 256 [2024-11-10 14:09:04,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:09:04,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:09:04,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:09:04,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:09:04,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,733 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,751 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:09:04,758 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:09:04,758 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:09:04,759 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:09:04,759 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04" (1/1) ... [2024-11-10 14:09:04,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:09:04,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:09:04,807 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) [2024-11-10 14:09:04,818 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 [2024-11-10 14:09:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:09:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-10 14:09:04,866 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-10 14:09:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:09:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 14:09:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:09:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:09:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:09:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:09:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 14:09:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:09:04,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:09:04,869 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:09:05,007 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:09:05,010 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:09:05,392 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:09:05,392 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:09:05,585 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:09:05,586 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:09:05,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:09:05 BoogieIcfgContainer [2024-11-10 14:09:05,586 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:09:05,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:09:05,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:09:05,591 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:09:05,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:09:04" (1/3) ... [2024-11-10 14:09:05,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17440f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:09:05, skipping insertion in model container [2024-11-10 14:09:05,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:04" (2/3) ... [2024-11-10 14:09:05,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17440f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:09:05, skipping insertion in model container [2024-11-10 14:09:05,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:09:05" (3/3) ... [2024-11-10 14:09:05,595 INFO L112 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur.i [2024-11-10 14:09:05,609 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:09:05,609 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2024-11-10 14:09:05,609 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:09:05,689 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:09:05,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 201 transitions, 406 flow [2024-11-10 14:09:05,808 INFO L124 PetriNetUnfolderBase]: 9/211 cut-off events. [2024-11-10 14:09:05,808 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:09:05,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 211 events. 9/211 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 151 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 121. Up to 4 conditions per place. [2024-11-10 14:09:05,819 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 201 transitions, 406 flow [2024-11-10 14:09:05,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 201 transitions, 406 flow [2024-11-10 14:09:05,832 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:09:05,840 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;@49d1d0b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:09:05,840 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-10 14:09:05,857 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:09:05,857 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2024-11-10 14:09:05,857 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:09:05,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:05,859 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:09:05,860 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-11-10 14:09:05,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:05,864 INFO L85 PathProgramCache]: Analyzing trace with hash -444643098, now seen corresponding path program 1 times [2024-11-10 14:09:05,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:05,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759001253] [2024-11-10 14:09:05,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:05,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:09:05,999 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:09:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:09:06,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:09:06,108 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:09:06,111 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-11-10 14:09:06,112 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-11-10 14:09:06,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-11-10 14:09:06,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-11-10 14:09:06,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-11-10 14:09:06,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-11-10 14:09:06,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2024-11-10 14:09:06,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-11-10 14:09:06,113 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-11-10 14:09:06,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-11-10 14:09:06,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-11-10 14:09:06,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-11-10 14:09:06,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-11-10 14:09:06,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-11-10 14:09:06,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-11-10 14:09:06,114 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-11-10 14:09:06,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-11-10 14:09:06,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-11-10 14:09:06,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-11-10 14:09:06,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-11-10 14:09:06,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-11-10 14:09:06,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-11-10 14:09:06,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-11-10 14:09:06,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-11-10 14:09:06,115 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-11-10 14:09:06,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-11-10 14:09:06,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-11-10 14:09:06,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-11-10 14:09:06,116 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-11-10 14:09:06,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-11-10 14:09:06,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-11-10 14:09:06,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-11-10 14:09:06,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-11-10 14:09:06,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-11-10 14:09:06,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-11-10 14:09:06,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-11-10 14:09:06,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-11-10 14:09:06,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-11-10 14:09:06,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-11-10 14:09:06,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:09:06,119 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-10 14:09:06,122 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:09:06,122 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 14:09:06,228 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:09:06,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 301 places, 311 transitions, 632 flow [2024-11-10 14:09:06,316 INFO L124 PetriNetUnfolderBase]: 17/333 cut-off events. [2024-11-10 14:09:06,316 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 14:09:06,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 341 conditions, 333 events. 17/333 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 599 event pairs, 0 based on Foata normal form. 0/275 useless extension candidates. Maximal degree in co-relation 230. Up to 6 conditions per place. [2024-11-10 14:09:06,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 301 places, 311 transitions, 632 flow [2024-11-10 14:09:06,325 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 301 places, 311 transitions, 632 flow [2024-11-10 14:09:06,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:09:06,330 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;@49d1d0b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:09:06,330 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-10 14:09:06,346 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:09:06,347 INFO L124 PetriNetUnfolderBase]: 4/121 cut-off events. [2024-11-10 14:09:06,347 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:09:06,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:06,347 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:09:06,347 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-10 14:09:06,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:06,348 INFO L85 PathProgramCache]: Analyzing trace with hash 383344864, now seen corresponding path program 1 times [2024-11-10 14:09:06,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:06,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957651818] [2024-11-10 14:09:06,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:06,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:09:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:09:06,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:09:06,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957651818] [2024-11-10 14:09:06,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957651818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:09:06,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:09:06,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 14:09:06,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070271217] [2024-11-10 14:09:06,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:09:06,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:09:06,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:09:06,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:09:06,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:09:06,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 311 [2024-11-10 14:09:06,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 311 transitions, 632 flow. Second operand has 2 states, 2 states have (on average 266.0) internal successors, (532), 2 states have internal predecessors, (532), 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) [2024-11-10 14:09:06,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:09:06,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 311 [2024-11-10 14:09:06,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:09:06,830 INFO L124 PetriNetUnfolderBase]: 38/672 cut-off events. [2024-11-10 14:09:06,830 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-10 14:09:06,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 741 conditions, 672 events. 38/672 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2369 event pairs, 15 based on Foata normal form. 109/715 useless extension candidates. Maximal degree in co-relation 232. Up to 52 conditions per place. [2024-11-10 14:09:06,836 INFO L140 encePairwiseOnDemand]: 275/311 looper letters, 10 selfloop transitions, 0 changer transitions 0/260 dead transitions. [2024-11-10 14:09:06,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 260 transitions, 550 flow [2024-11-10 14:09:06,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:09:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:09:06,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 576 transitions. [2024-11-10 14:09:06,848 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9260450160771704 [2024-11-10 14:09:06,849 INFO L175 Difference]: Start difference. First operand has 301 places, 311 transitions, 632 flow. Second operand 2 states and 576 transitions. [2024-11-10 14:09:06,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 260 transitions, 550 flow [2024-11-10 14:09:06,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 260 transitions, 550 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:09:06,856 INFO L231 Difference]: Finished difference. Result has 260 places, 260 transitions, 530 flow [2024-11-10 14:09:06,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=311, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=530, PETRI_PLACES=260, PETRI_TRANSITIONS=260} [2024-11-10 14:09:06,861 INFO L277 CegarLoopForPetriNet]: 301 programPoint places, -41 predicate places. [2024-11-10 14:09:06,861 INFO L471 AbstractCegarLoop]: Abstraction has has 260 places, 260 transitions, 530 flow [2024-11-10 14:09:06,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 266.0) internal successors, (532), 2 states have internal predecessors, (532), 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) [2024-11-10 14:09:06,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:06,862 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:09:06,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:09:06,862 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2024-11-10 14:09:06,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:06,863 INFO L85 PathProgramCache]: Analyzing trace with hash -2053630200, now seen corresponding path program 1 times [2024-11-10 14:09:06,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:06,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817464005] [2024-11-10 14:09:06,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:06,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:09:06,892 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:09:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:09:06,917 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:09:06,917 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:09:06,917 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2024-11-10 14:09:06,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2024-11-10 14:09:06,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2024-11-10 14:09:06,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2024-11-10 14:09:06,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2024-11-10 14:09:06,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2024-11-10 14:09:06,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2024-11-10 14:09:06,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2024-11-10 14:09:06,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2024-11-10 14:09:06,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2024-11-10 14:09:06,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2024-11-10 14:09:06,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2024-11-10 14:09:06,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2024-11-10 14:09:06,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2024-11-10 14:09:06,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2024-11-10 14:09:06,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2024-11-10 14:09:06,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2024-11-10 14:09:06,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2024-11-10 14:09:06,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2024-11-10 14:09:06,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2024-11-10 14:09:06,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2024-11-10 14:09:06,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2024-11-10 14:09:06,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2024-11-10 14:09:06,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2024-11-10 14:09:06,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2024-11-10 14:09:06,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2024-11-10 14:09:06,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2024-11-10 14:09:06,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2024-11-10 14:09:06,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2024-11-10 14:09:06,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2024-11-10 14:09:06,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2024-11-10 14:09:06,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2024-11-10 14:09:06,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2024-11-10 14:09:06,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2024-11-10 14:09:06,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2024-11-10 14:09:06,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2024-11-10 14:09:06,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2024-11-10 14:09:06,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2024-11-10 14:09:06,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2024-11-10 14:09:06,923 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2024-11-10 14:09:06,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2024-11-10 14:09:06,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2024-11-10 14:09:06,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2024-11-10 14:09:06,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2024-11-10 14:09:06,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2024-11-10 14:09:06,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2024-11-10 14:09:06,924 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2024-11-10 14:09:06,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2024-11-10 14:09:06,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2024-11-10 14:09:06,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2024-11-10 14:09:06,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2024-11-10 14:09:06,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2024-11-10 14:09:06,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2024-11-10 14:09:06,925 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2024-11-10 14:09:06,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2024-11-10 14:09:06,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2024-11-10 14:09:06,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2024-11-10 14:09:06,926 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2024-11-10 14:09:06,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:09:06,926 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-10 14:09:06,927 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:09:06,927 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 14:09:07,026 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:09:07,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 406 places, 421 transitions, 860 flow [2024-11-10 14:09:07,110 INFO L124 PetriNetUnfolderBase]: 25/455 cut-off events. [2024-11-10 14:09:07,111 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-10 14:09:07,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 455 events. 25/455 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1223 event pairs, 0 based on Foata normal form. 0/369 useless extension candidates. Maximal degree in co-relation 339. Up to 8 conditions per place. [2024-11-10 14:09:07,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 406 places, 421 transitions, 860 flow [2024-11-10 14:09:07,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 406 places, 421 transitions, 860 flow [2024-11-10 14:09:07,125 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:09:07,127 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;@49d1d0b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:09:07,127 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2024-11-10 14:09:07,157 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:09:07,157 INFO L124 PetriNetUnfolderBase]: 4/121 cut-off events. [2024-11-10 14:09:07,157 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:09:07,157 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:07,158 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:09:07,158 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2024-11-10 14:09:07,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:07,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1115274861, now seen corresponding path program 1 times [2024-11-10 14:09:07,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:07,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748716886] [2024-11-10 14:09:07,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:07,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:09:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:09:07,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:09:07,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748716886] [2024-11-10 14:09:07,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748716886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:09:07,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:09:07,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 14:09:07,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715225785] [2024-11-10 14:09:07,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:09:07,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:09:07,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:09:07,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:09:07,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:09:07,249 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 421 [2024-11-10 14:09:07,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 421 transitions, 860 flow. Second operand has 2 states, 2 states have (on average 354.0) internal successors, (708), 2 states have internal predecessors, (708), 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) [2024-11-10 14:09:07,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:09:07,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 421 [2024-11-10 14:09:07,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:09:07,953 INFO L124 PetriNetUnfolderBase]: 325/3255 cut-off events. [2024-11-10 14:09:07,954 INFO L125 PetriNetUnfolderBase]: For 190/190 co-relation queries the response was YES. [2024-11-10 14:09:07,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3754 conditions, 3255 events. 325/3255 cut-off events. For 190/190 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 25202 event pairs, 178 based on Foata normal form. 745/3652 useless extension candidates. Maximal degree in co-relation 733. Up to 397 conditions per place. [2024-11-10 14:09:07,984 INFO L140 encePairwiseOnDemand]: 368/421 looper letters, 15 selfloop transitions, 0 changer transitions 0/347 dead transitions. [2024-11-10 14:09:07,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 347 transitions, 742 flow [2024-11-10 14:09:07,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:09:07,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:09:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 774 transitions. [2024-11-10 14:09:07,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9192399049881235 [2024-11-10 14:09:07,992 INFO L175 Difference]: Start difference. First operand has 406 places, 421 transitions, 860 flow. Second operand 2 states and 774 transitions. [2024-11-10 14:09:07,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 347 transitions, 742 flow [2024-11-10 14:09:07,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 347 transitions, 740 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-10 14:09:07,998 INFO L231 Difference]: Finished difference. Result has 346 places, 347 transitions, 710 flow [2024-11-10 14:09:08,000 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=710, PETRI_PLACES=346, PETRI_TRANSITIONS=347} [2024-11-10 14:09:08,003 INFO L277 CegarLoopForPetriNet]: 406 programPoint places, -60 predicate places. [2024-11-10 14:09:08,003 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 347 transitions, 710 flow [2024-11-10 14:09:08,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 354.0) internal successors, (708), 2 states have internal predecessors, (708), 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) [2024-11-10 14:09:08,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:08,003 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:09:08,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:09:08,004 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2024-11-10 14:09:08,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:08,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1729998025, now seen corresponding path program 1 times [2024-11-10 14:09:08,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:08,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473888087] [2024-11-10 14:09:08,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:08,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:09:08,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:09:08,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:09:08,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473888087] [2024-11-10 14:09:08,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473888087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:09:08,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:09:08,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:09:08,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256197552] [2024-11-10 14:09:08,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:09:08,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:09:08,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:09:08,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:09:08,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:09:09,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 324 out of 421 [2024-11-10 14:09:09,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 347 transitions, 710 flow. Second operand has 6 states, 6 states have (on average 325.5) internal successors, (1953), 6 states have internal predecessors, (1953), 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) [2024-11-10 14:09:09,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:09:09,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 324 of 421 [2024-11-10 14:09:09,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:09:13,797 INFO L124 PetriNetUnfolderBase]: 4010/22284 cut-off events. [2024-11-10 14:09:13,798 INFO L125 PetriNetUnfolderBase]: For 1147/1147 co-relation queries the response was YES. [2024-11-10 14:09:13,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28729 conditions, 22284 events. 4010/22284 cut-off events. For 1147/1147 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 279705 event pairs, 616 based on Foata normal form. 0/19983 useless extension candidates. Maximal degree in co-relation 28723. Up to 3543 conditions per place. [2024-11-10 14:09:14,011 INFO L140 encePairwiseOnDemand]: 392/421 looper letters, 76 selfloop transitions, 37 changer transitions 0/417 dead transitions. [2024-11-10 14:09:14,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 417 transitions, 1116 flow [2024-11-10 14:09:14,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:09:14,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:09:14,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2061 transitions. [2024-11-10 14:09:14,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.815914489311164 [2024-11-10 14:09:14,016 INFO L175 Difference]: Start difference. First operand has 346 places, 347 transitions, 710 flow. Second operand 6 states and 2061 transitions. [2024-11-10 14:09:14,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 417 transitions, 1116 flow [2024-11-10 14:09:14,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 417 transitions, 1116 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:09:14,029 INFO L231 Difference]: Finished difference. Result has 356 places, 383 transitions, 986 flow [2024-11-10 14:09:14,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=986, PETRI_PLACES=356, PETRI_TRANSITIONS=383} [2024-11-10 14:09:14,031 INFO L277 CegarLoopForPetriNet]: 406 programPoint places, -50 predicate places. [2024-11-10 14:09:14,032 INFO L471 AbstractCegarLoop]: Abstraction has has 356 places, 383 transitions, 986 flow [2024-11-10 14:09:14,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 325.5) internal successors, (1953), 6 states have internal predecessors, (1953), 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) [2024-11-10 14:09:14,033 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:14,034 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:09:14,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:09:14,035 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2024-11-10 14:09:14,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:14,035 INFO L85 PathProgramCache]: Analyzing trace with hash -2103015035, now seen corresponding path program 1 times [2024-11-10 14:09:14,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:14,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995822091] [2024-11-10 14:09:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:14,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:09:14,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:09:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:09:14,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:09:14,091 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:09:14,091 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2024-11-10 14:09:14,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2024-11-10 14:09:14,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2024-11-10 14:09:14,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2024-11-10 14:09:14,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2024-11-10 14:09:14,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2024-11-10 14:09:14,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2024-11-10 14:09:14,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2024-11-10 14:09:14,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2024-11-10 14:09:14,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2024-11-10 14:09:14,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2024-11-10 14:09:14,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2024-11-10 14:09:14,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2024-11-10 14:09:14,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2024-11-10 14:09:14,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2024-11-10 14:09:14,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2024-11-10 14:09:14,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2024-11-10 14:09:14,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2024-11-10 14:09:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2024-11-10 14:09:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2024-11-10 14:09:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2024-11-10 14:09:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2024-11-10 14:09:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2024-11-10 14:09:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2024-11-10 14:09:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2024-11-10 14:09:14,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2024-11-10 14:09:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2024-11-10 14:09:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2024-11-10 14:09:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2024-11-10 14:09:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2024-11-10 14:09:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2024-11-10 14:09:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2024-11-10 14:09:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2024-11-10 14:09:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2024-11-10 14:09:14,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2024-11-10 14:09:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2024-11-10 14:09:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2024-11-10 14:09:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2024-11-10 14:09:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2024-11-10 14:09:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2024-11-10 14:09:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2024-11-10 14:09:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2024-11-10 14:09:14,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2024-11-10 14:09:14,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2024-11-10 14:09:14,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2024-11-10 14:09:14,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2024-11-10 14:09:14,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2024-11-10 14:09:14,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2024-11-10 14:09:14,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2024-11-10 14:09:14,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2024-11-10 14:09:14,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2024-11-10 14:09:14,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2024-11-10 14:09:14,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2024-11-10 14:09:14,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2024-11-10 14:09:14,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2024-11-10 14:09:14,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2024-11-10 14:09:14,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2024-11-10 14:09:14,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2024-11-10 14:09:14,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2024-11-10 14:09:14,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2024-11-10 14:09:14,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2024-11-10 14:09:14,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2024-11-10 14:09:14,102 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2024-11-10 14:09:14,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2024-11-10 14:09:14,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2024-11-10 14:09:14,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:09:14,103 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-10 14:09:14,103 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:09:14,103 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-10 14:09:14,205 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:09:14,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 531 transitions, 1090 flow [2024-11-10 14:09:14,380 INFO L124 PetriNetUnfolderBase]: 33/577 cut-off events. [2024-11-10 14:09:14,380 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-10 14:09:14,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 577 events. 33/577 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1938 event pairs, 0 based on Foata normal form. 0/463 useless extension candidates. Maximal degree in co-relation 463. Up to 10 conditions per place. [2024-11-10 14:09:14,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 531 transitions, 1090 flow [2024-11-10 14:09:14,397 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 511 places, 531 transitions, 1090 flow [2024-11-10 14:09:14,397 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:09:14,398 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;@49d1d0b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:09:14,399 INFO L334 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2024-11-10 14:09:14,404 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:09:14,404 INFO L124 PetriNetUnfolderBase]: 4/121 cut-off events. [2024-11-10 14:09:14,404 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:09:14,404 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:14,404 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:09:14,404 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2024-11-10 14:09:14,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:14,405 INFO L85 PathProgramCache]: Analyzing trace with hash -56695206, now seen corresponding path program 1 times [2024-11-10 14:09:14,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:14,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137713873] [2024-11-10 14:09:14,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:14,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:09:14,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:09:14,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:09:14,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137713873] [2024-11-10 14:09:14,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137713873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:09:14,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:09:14,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 14:09:14,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300079157] [2024-11-10 14:09:14,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:09:14,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:09:14,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:09:14,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:09:14,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:09:14,439 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 531 [2024-11-10 14:09:14,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 531 transitions, 1090 flow. Second operand has 2 states, 2 states have (on average 442.0) internal successors, (884), 2 states have internal predecessors, (884), 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) [2024-11-10 14:09:14,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:09:14,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 531 [2024-11-10 14:09:14,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:09:18,311 INFO L124 PetriNetUnfolderBase]: 2297/16569 cut-off events. [2024-11-10 14:09:18,311 INFO L125 PetriNetUnfolderBase]: For 1729/1729 co-relation queries the response was YES. [2024-11-10 14:09:18,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19877 conditions, 16569 events. 2297/16569 cut-off events. For 1729/1729 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 189171 event pairs, 1422 based on Foata normal form. 4674/19509 useless extension candidates. Maximal degree in co-relation 3732. Up to 2665 conditions per place. [2024-11-10 14:09:18,667 INFO L140 encePairwiseOnDemand]: 461/531 looper letters, 20 selfloop transitions, 0 changer transitions 0/434 dead transitions. [2024-11-10 14:09:18,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 434 transitions, 936 flow [2024-11-10 14:09:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:09:18,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:09:18,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 972 transitions. [2024-11-10 14:09:18,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9152542372881356 [2024-11-10 14:09:18,670 INFO L175 Difference]: Start difference. First operand has 511 places, 531 transitions, 1090 flow. Second operand 2 states and 972 transitions. [2024-11-10 14:09:18,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 434 transitions, 936 flow [2024-11-10 14:09:18,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 434 transitions, 930 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-10 14:09:18,675 INFO L231 Difference]: Finished difference. Result has 432 places, 434 transitions, 890 flow [2024-11-10 14:09:18,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=890, PETRI_PLACES=432, PETRI_TRANSITIONS=434} [2024-11-10 14:09:18,676 INFO L277 CegarLoopForPetriNet]: 511 programPoint places, -79 predicate places. [2024-11-10 14:09:18,677 INFO L471 AbstractCegarLoop]: Abstraction has has 432 places, 434 transitions, 890 flow [2024-11-10 14:09:18,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 442.0) internal successors, (884), 2 states have internal predecessors, (884), 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) [2024-11-10 14:09:18,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:18,677 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:09:18,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:09:18,681 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2024-11-10 14:09:18,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:18,682 INFO L85 PathProgramCache]: Analyzing trace with hash -671611548, now seen corresponding path program 1 times [2024-11-10 14:09:18,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:18,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525821283] [2024-11-10 14:09:18,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:18,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:09:19,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:09:19,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:09:19,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525821283] [2024-11-10 14:09:19,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525821283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:09:19,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:09:19,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:09:19,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024551080] [2024-11-10 14:09:19,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:09:19,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:09:19,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:09:19,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:09:19,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:09:19,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 412 out of 531 [2024-11-10 14:09:19,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 434 transitions, 890 flow. Second operand has 6 states, 6 states have (on average 413.5) internal successors, (2481), 6 states have internal predecessors, (2481), 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) [2024-11-10 14:09:19,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:09:19,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 412 of 531 [2024-11-10 14:09:19,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:09:46,609 INFO L124 PetriNetUnfolderBase]: 29281/125486 cut-off events. [2024-11-10 14:09:46,613 INFO L125 PetriNetUnfolderBase]: For 8068/8068 co-relation queries the response was YES. [2024-11-10 14:09:48,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167301 conditions, 125486 events. 29281/125486 cut-off events. For 8068/8068 co-relation queries the response was YES. Maximal size of possible extension queue 2027. Compared 1916481 event pairs, 7428 based on Foata normal form. 0/112542 useless extension candidates. Maximal degree in co-relation 167294. Up to 24786 conditions per place. [2024-11-10 14:09:49,618 INFO L140 encePairwiseOnDemand]: 500/531 looper letters, 93 selfloop transitions, 45 changer transitions 0/524 dead transitions. [2024-11-10 14:09:49,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 524 transitions, 1406 flow [2024-11-10 14:09:49,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:09:49,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:09:49,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2614 transitions. [2024-11-10 14:09:49,623 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8204645323289391 [2024-11-10 14:09:49,623 INFO L175 Difference]: Start difference. First operand has 432 places, 434 transitions, 890 flow. Second operand 6 states and 2614 transitions. [2024-11-10 14:09:49,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 524 transitions, 1406 flow [2024-11-10 14:09:49,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 524 transitions, 1406 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:09:49,687 INFO L231 Difference]: Finished difference. Result has 442 places, 478 transitions, 1218 flow [2024-11-10 14:09:49,687 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=531, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1218, PETRI_PLACES=442, PETRI_TRANSITIONS=478} [2024-11-10 14:09:49,688 INFO L277 CegarLoopForPetriNet]: 511 programPoint places, -69 predicate places. [2024-11-10 14:09:49,688 INFO L471 AbstractCegarLoop]: Abstraction has has 442 places, 478 transitions, 1218 flow [2024-11-10 14:09:49,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 413.5) internal successors, (2481), 6 states have internal predecessors, (2481), 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) [2024-11-10 14:09:49,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:49,690 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:09:49,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:09:49,690 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err18ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err15ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2024-11-10 14:09:49,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:49,690 INFO L85 PathProgramCache]: Analyzing trace with hash -2023067834, now seen corresponding path program 1 times [2024-11-10 14:09:49,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:49,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676469360] [2024-11-10 14:09:49,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:49,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:09:50,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 14:09:50,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:09:50,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676469360] [2024-11-10 14:09:50,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676469360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:09:50,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:09:50,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:09:50,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206345236] [2024-11-10 14:09:50,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:09:50,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:09:50,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:09:50,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:09:50,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:09:50,888 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 412 out of 531 [2024-11-10 14:09:50,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 478 transitions, 1218 flow. Second operand has 6 states, 6 states have (on average 413.6666666666667) internal successors, (2482), 6 states have internal predecessors, (2482), 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) [2024-11-10 14:09:50,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:09:50,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 412 of 531 [2024-11-10 14:09:50,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand