./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.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-race.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 e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:09:00,267 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:09:00,345 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:09:00,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:09:00,350 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:09:00,381 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:09:00,382 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:09:00,382 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:09:00,383 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:09:00,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:09:00,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:09:00,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:09:00,388 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:09:00,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:09:00,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:09:00,389 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:09:00,389 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:09:00,389 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:09:00,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:09:00,390 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:09:00,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:09:00,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:09:00,393 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:09:00,393 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:09:00,394 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:09:00,394 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:09:00,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:09:00,395 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:09:00,395 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:09:00,395 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:09:00,395 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:09:00,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:09:00,396 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:09:00,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:09:00,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:09:00,397 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:09:00,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:09:00,398 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:09:00,398 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:09:00,398 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:09:00,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:09:00,399 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b [2024-11-10 14:09:00,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:09:00,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:09:00,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:09:00,691 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:09:00,691 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:09:00,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2024-11-10 14:09:02,235 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:09:02,483 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:09:02,484 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2024-11-10 14:09:02,497 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e22aa5d/f037fbf534db42aba5845ab25588afd3/FLAG98b9bdd42 [2024-11-10 14:09:02,512 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22e22aa5d/f037fbf534db42aba5845ab25588afd3 [2024-11-10 14:09:02,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:09:02,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:09:02,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:09:02,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:09:02,530 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:09:02,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:09:02" (1/1) ... [2024-11-10 14:09:02,534 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26eeb150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:02, skipping insertion in model container [2024-11-10 14:09:02,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:09:02" (1/1) ... [2024-11-10 14:09:02,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:09:02,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:09:02,951 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:09:03,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:09:03,083 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:09:03,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03 WrapperNode [2024-11-10 14:09:03,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:09:03,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:09:03,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:09:03,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:09:03,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03" (1/1) ... [2024-11-10 14:09:03,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03" (1/1) ... [2024-11-10 14:09:03,143 INFO L138 Inliner]: procedures = 170, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 252 [2024-11-10 14:09:03,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:09:03,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:09:03,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:09:03,144 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:09:03,152 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03" (1/1) ... [2024-11-10 14:09:03,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03" (1/1) ... [2024-11-10 14:09:03,162 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03" (1/1) ... [2024-11-10 14:09:03,166 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03" (1/1) ... [2024-11-10 14:09:03,186 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03" (1/1) ... [2024-11-10 14:09:03,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03" (1/1) ... [2024-11-10 14:09:03,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03" (1/1) ... [2024-11-10 14:09:03,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03" (1/1) ... [2024-11-10 14:09:03,194 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:09:03,195 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:09:03,195 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:09:03,196 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:09:03,196 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03" (1/1) ... [2024-11-10 14:09:03,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:09:03,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:09:03,238 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 14:09:03,241 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 14:09:03,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:09:03,279 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-10 14:09:03,279 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-10 14:09:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:09:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:09:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:09:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:09:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:09:03,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:09:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:09:03,282 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 14:09:03,396 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:09:03,398 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:09:03,837 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:09:03,837 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:09:04,041 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:09:04,041 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:09:04,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:09:04 BoogieIcfgContainer [2024-11-10 14:09:04,041 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:09:04,044 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:09:04,044 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:09:04,047 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:09:04,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:09:02" (1/3) ... [2024-11-10 14:09:04,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa55294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:09:04, skipping insertion in model container [2024-11-10 14:09:04,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:09:03" (2/3) ... [2024-11-10 14:09:04,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa55294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:09:04, skipping insertion in model container [2024-11-10 14:09:04,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:09:04" (3/3) ... [2024-11-10 14:09:04,052 INFO L112 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur-race.i [2024-11-10 14:09:04,068 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:09:04,069 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2024-11-10 14:09:04,069 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:09:04,162 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:09:04,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 216 places, 223 transitions, 450 flow [2024-11-10 14:09:04,278 INFO L124 PetriNetUnfolderBase]: 11/233 cut-off events. [2024-11-10 14:09:04,278 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:09:04,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 233 events. 11/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 188 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 143. Up to 4 conditions per place. [2024-11-10 14:09:04,285 INFO L82 GeneralOperation]: Start removeDead. Operand has 216 places, 223 transitions, 450 flow [2024-11-10 14:09:04,291 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 216 places, 223 transitions, 450 flow [2024-11-10 14:09:04,306 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:09:04,313 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;@32dfdafc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:09:04,314 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-10 14:09:04,341 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:09:04,341 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2024-11-10 14:09:04,342 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:09:04,342 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:04,343 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 14:09:04,344 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 14:09:04,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:04,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1490056161, now seen corresponding path program 1 times [2024-11-10 14:09:04,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:04,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412802294] [2024-11-10 14:09:04,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:04,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:09:04,575 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:09:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:09:04,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:09:04,779 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:09:04,780 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2024-11-10 14:09:04,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2024-11-10 14:09:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2024-11-10 14:09:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2024-11-10 14:09:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2024-11-10 14:09:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2024-11-10 14:09:04,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2024-11-10 14:09:04,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2024-11-10 14:09:04,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2024-11-10 14:09:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2024-11-10 14:09:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2024-11-10 14:09:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2024-11-10 14:09:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2024-11-10 14:09:04,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2024-11-10 14:09:04,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2024-11-10 14:09:04,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2024-11-10 14:09:04,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2024-11-10 14:09:04,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2024-11-10 14:09:04,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2024-11-10 14:09:04,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2024-11-10 14:09:04,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2024-11-10 14:09:04,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2024-11-10 14:09:04,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2024-11-10 14:09:04,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2024-11-10 14:09:04,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2024-11-10 14:09:04,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2024-11-10 14:09:04,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2024-11-10 14:09:04,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2024-11-10 14:09:04,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2024-11-10 14:09:04,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2024-11-10 14:09:04,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2024-11-10 14:09:04,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2024-11-10 14:09:04,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2024-11-10 14:09:04,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2024-11-10 14:09:04,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2024-11-10 14:09:04,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2024-11-10 14:09:04,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2024-11-10 14:09:04,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2024-11-10 14:09:04,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2024-11-10 14:09:04,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:09:04,793 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-10 14:09:04,798 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:09:04,799 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 14:09:04,894 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:09:04,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 341 places, 355 transitions, 720 flow [2024-11-10 14:09:04,996 INFO L124 PetriNetUnfolderBase]: 21/377 cut-off events. [2024-11-10 14:09:04,996 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 14:09:05,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 377 events. 21/377 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 755 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 274. Up to 6 conditions per place. [2024-11-10 14:09:05,005 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 355 transitions, 720 flow [2024-11-10 14:09:05,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 341 places, 355 transitions, 720 flow [2024-11-10 14:09:05,013 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:09:05,014 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;@32dfdafc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:09:05,014 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-10 14:09:05,029 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:09:05,029 INFO L124 PetriNetUnfolderBase]: 4/121 cut-off events. [2024-11-10 14:09:05,029 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:09:05,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:05,030 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 14:09:05,030 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 14:09:05,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:05,031 INFO L85 PathProgramCache]: Analyzing trace with hash -2010779142, now seen corresponding path program 1 times [2024-11-10 14:09:05,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:05,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505859120] [2024-11-10 14:09:05,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:05,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:09:05,241 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 14:09:05,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:09:05,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505859120] [2024-11-10 14:09:05,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505859120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:09:05,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:09:05,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 14:09:05,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38095730] [2024-11-10 14:09:05,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:09:05,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:09:05,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:09:05,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:09:05,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:09:05,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 355 [2024-11-10 14:09:05,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 355 transitions, 720 flow. Second operand has 2 states, 2 states have (on average 312.0) internal successors, (624), 2 states have internal predecessors, (624), 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 14:09:05,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:09:05,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 355 [2024-11-10 14:09:05,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:09:05,506 INFO L124 PetriNetUnfolderBase]: 18/548 cut-off events. [2024-11-10 14:09:05,506 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-10 14:09:05,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 548 events. 18/548 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1434 event pairs, 6 based on Foata normal form. 66/559 useless extension candidates. Maximal degree in co-relation 202. Up to 19 conditions per place. [2024-11-10 14:09:05,516 INFO L140 encePairwiseOnDemand]: 319/355 looper letters, 6 selfloop transitions, 0 changer transitions 0/300 dead transitions. [2024-11-10 14:09:05,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 300 transitions, 622 flow [2024-11-10 14:09:05,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:09:05,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:09:05,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 664 transitions. [2024-11-10 14:09:05,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9352112676056338 [2024-11-10 14:09:05,541 INFO L175 Difference]: Start difference. First operand has 341 places, 355 transitions, 720 flow. Second operand 2 states and 664 transitions. [2024-11-10 14:09:05,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 300 transitions, 622 flow [2024-11-10 14:09:05,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 300 transitions, 622 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:09:05,555 INFO L231 Difference]: Finished difference. Result has 300 places, 300 transitions, 610 flow [2024-11-10 14:09:05,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=610, PETRI_PLACES=300, PETRI_TRANSITIONS=300} [2024-11-10 14:09:05,564 INFO L277 CegarLoopForPetriNet]: 341 programPoint places, -41 predicate places. [2024-11-10 14:09:05,565 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 300 transitions, 610 flow [2024-11-10 14:09:05,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 312.0) internal successors, (624), 2 states have internal predecessors, (624), 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 14:09:05,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:05,567 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 14:09:05,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:09:05,567 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 14:09:05,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:05,568 INFO L85 PathProgramCache]: Analyzing trace with hash -975079492, now seen corresponding path program 1 times [2024-11-10 14:09:05,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:05,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509052439] [2024-11-10 14:09:05,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:05,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:09:05,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:09:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:09:05,665 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:09:05,665 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:09:05,666 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2024-11-10 14:09:05,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2024-11-10 14:09:05,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2024-11-10 14:09:05,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2024-11-10 14:09:05,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2024-11-10 14:09:05,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2024-11-10 14:09:05,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2024-11-10 14:09:05,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2024-11-10 14:09:05,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2024-11-10 14:09:05,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2024-11-10 14:09:05,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2024-11-10 14:09:05,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2024-11-10 14:09:05,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2024-11-10 14:09:05,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2024-11-10 14:09:05,668 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2024-11-10 14:09:05,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2024-11-10 14:09:05,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2024-11-10 14:09:05,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2024-11-10 14:09:05,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2024-11-10 14:09:05,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2024-11-10 14:09:05,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2024-11-10 14:09:05,669 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2024-11-10 14:09:05,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2024-11-10 14:09:05,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2024-11-10 14:09:05,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2024-11-10 14:09:05,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2024-11-10 14:09:05,670 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2024-11-10 14:09:05,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2024-11-10 14:09:05,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2024-11-10 14:09:05,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2024-11-10 14:09:05,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2024-11-10 14:09:05,671 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2024-11-10 14:09:05,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2024-11-10 14:09:05,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2024-11-10 14:09:05,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2024-11-10 14:09:05,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2024-11-10 14:09:05,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2024-11-10 14:09:05,672 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2024-11-10 14:09:05,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2024-11-10 14:09:05,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2024-11-10 14:09:05,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2024-11-10 14:09:05,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2024-11-10 14:09:05,673 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2024-11-10 14:09:05,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2024-11-10 14:09:05,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2024-11-10 14:09:05,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2024-11-10 14:09:05,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2024-11-10 14:09:05,674 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2024-11-10 14:09:05,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2024-11-10 14:09:05,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2024-11-10 14:09:05,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2024-11-10 14:09:05,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2024-11-10 14:09:05,675 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2024-11-10 14:09:05,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2024-11-10 14:09:05,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2024-11-10 14:09:05,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2024-11-10 14:09:05,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2024-11-10 14:09:05,676 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2024-11-10 14:09:05,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:09:05,676 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-10 14:09:05,677 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:09:05,677 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 14:09:05,791 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:09:05,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 466 places, 487 transitions, 992 flow [2024-11-10 14:09:05,911 INFO L124 PetriNetUnfolderBase]: 31/521 cut-off events. [2024-11-10 14:09:05,911 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-10 14:09:05,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 521 events. 31/521 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1547 event pairs, 0 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 405. Up to 8 conditions per place. [2024-11-10 14:09:05,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 466 places, 487 transitions, 992 flow [2024-11-10 14:09:05,930 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 466 places, 487 transitions, 992 flow [2024-11-10 14:09:05,931 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:09:05,934 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;@32dfdafc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:09:05,934 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2024-11-10 14:09:05,943 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:09:05,944 INFO L124 PetriNetUnfolderBase]: 4/121 cut-off events. [2024-11-10 14:09:05,944 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:09:05,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:05,944 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 14:09:05,944 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 14:09:05,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:05,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1047437277, now seen corresponding path program 1 times [2024-11-10 14:09:05,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:05,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443216507] [2024-11-10 14:09:05,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:05,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:09:06,036 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 14:09:06,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:09:06,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443216507] [2024-11-10 14:09:06,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443216507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:09:06,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:09:06,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 14:09:06,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824423449] [2024-11-10 14:09:06,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:09:06,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:09:06,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:09:06,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:09:06,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:09:06,044 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 487 [2024-11-10 14:09:06,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 487 transitions, 992 flow. Second operand has 2 states, 2 states have (on average 423.0) internal successors, (846), 2 states have internal predecessors, (846), 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 14:09:06,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:09:06,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 487 [2024-11-10 14:09:06,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:09:06,650 INFO L124 PetriNetUnfolderBase]: 81/1616 cut-off events. [2024-11-10 14:09:06,651 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-11-10 14:09:06,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1749 conditions, 1616 events. 81/1616 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 9353 event pairs, 42 based on Foata normal form. 278/1709 useless extension candidates. Maximal degree in co-relation 574. Up to 82 conditions per place. [2024-11-10 14:09:06,690 INFO L140 encePairwiseOnDemand]: 434/487 looper letters, 9 selfloop transitions, 0 changer transitions 0/407 dead transitions. [2024-11-10 14:09:06,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 407 transitions, 850 flow [2024-11-10 14:09:06,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:09:06,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:09:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 906 transitions. [2024-11-10 14:09:06,699 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9301848049281314 [2024-11-10 14:09:06,699 INFO L175 Difference]: Start difference. First operand has 466 places, 487 transitions, 992 flow. Second operand 2 states and 906 transitions. [2024-11-10 14:09:06,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 407 transitions, 850 flow [2024-11-10 14:09:06,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 407 transitions, 848 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-10 14:09:06,750 INFO L231 Difference]: Finished difference. Result has 406 places, 407 transitions, 830 flow [2024-11-10 14:09:06,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=830, PETRI_PLACES=406, PETRI_TRANSITIONS=407} [2024-11-10 14:09:06,752 INFO L277 CegarLoopForPetriNet]: 466 programPoint places, -60 predicate places. [2024-11-10 14:09:06,755 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 407 transitions, 830 flow [2024-11-10 14:09:06,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 423.0) internal successors, (846), 2 states have internal predecessors, (846), 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 14:09:06,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:06,756 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 14:09:06,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:09:06,757 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 14:09:06,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:06,757 INFO L85 PathProgramCache]: Analyzing trace with hash 600055399, now seen corresponding path program 1 times [2024-11-10 14:09:06,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:06,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204673395] [2024-11-10 14:09:06,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:06,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:09:07,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:09:07,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:09:07,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204673395] [2024-11-10 14:09:07,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204673395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:09:07,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:09:07,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:09:07,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155601053] [2024-11-10 14:09:07,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:09:07,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:09:07,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:09:07,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:09:07,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:09:08,543 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 487 [2024-11-10 14:09:08,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 407 transitions, 830 flow. Second operand has 6 states, 6 states have (on average 394.5) internal successors, (2367), 6 states have internal predecessors, (2367), 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 14:09:08,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:09:08,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 487 [2024-11-10 14:09:08,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:09:12,250 INFO L124 PetriNetUnfolderBase]: 1372/14225 cut-off events. [2024-11-10 14:09:12,251 INFO L125 PetriNetUnfolderBase]: For 646/646 co-relation queries the response was YES. [2024-11-10 14:09:12,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16573 conditions, 14225 events. 1372/14225 cut-off events. For 646/646 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 168483 event pairs, 263 based on Foata normal form. 0/12437 useless extension candidates. Maximal degree in co-relation 16567. Up to 1255 conditions per place. [2024-11-10 14:09:12,468 INFO L140 encePairwiseOnDemand]: 458/487 looper letters, 53 selfloop transitions, 37 changer transitions 0/460 dead transitions. [2024-11-10 14:09:12,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 460 transitions, 1156 flow [2024-11-10 14:09:12,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:09:12,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:09:12,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2452 transitions. [2024-11-10 14:09:12,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.839151266255989 [2024-11-10 14:09:12,475 INFO L175 Difference]: Start difference. First operand has 406 places, 407 transitions, 830 flow. Second operand 6 states and 2452 transitions. [2024-11-10 14:09:12,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 460 transitions, 1156 flow [2024-11-10 14:09:12,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 460 transitions, 1156 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:09:12,488 INFO L231 Difference]: Finished difference. Result has 416 places, 443 transitions, 1106 flow [2024-11-10 14:09:12,488 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=487, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1106, PETRI_PLACES=416, PETRI_TRANSITIONS=443} [2024-11-10 14:09:12,489 INFO L277 CegarLoopForPetriNet]: 466 programPoint places, -50 predicate places. [2024-11-10 14:09:12,490 INFO L471 AbstractCegarLoop]: Abstraction has has 416 places, 443 transitions, 1106 flow [2024-11-10 14:09:12,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 394.5) internal successors, (2367), 6 states have internal predecessors, (2367), 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 14:09:12,491 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:12,492 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 14:09:12,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:09:12,493 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 14:09:12,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:12,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1034446238, now seen corresponding path program 1 times [2024-11-10 14:09:12,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:12,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423470620] [2024-11-10 14:09:12,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:12,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:09:12,527 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 14:09:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 14:09:12,563 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 14:09:12,563 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 14:09:12,564 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2024-11-10 14:09:12,564 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2024-11-10 14:09:12,564 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2024-11-10 14:09:12,564 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2024-11-10 14:09:12,564 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2024-11-10 14:09:12,564 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2024-11-10 14:09:12,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2024-11-10 14:09:12,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2024-11-10 14:09:12,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2024-11-10 14:09:12,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2024-11-10 14:09:12,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2024-11-10 14:09:12,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2024-11-10 14:09:12,565 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2024-11-10 14:09:12,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2024-11-10 14:09:12,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2024-11-10 14:09:12,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2024-11-10 14:09:12,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2024-11-10 14:09:12,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2024-11-10 14:09:12,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2024-11-10 14:09:12,566 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2024-11-10 14:09:12,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2024-11-10 14:09:12,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2024-11-10 14:09:12,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2024-11-10 14:09:12,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2024-11-10 14:09:12,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2024-11-10 14:09:12,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2024-11-10 14:09:12,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2024-11-10 14:09:12,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2024-11-10 14:09:12,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2024-11-10 14:09:12,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2024-11-10 14:09:12,567 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2024-11-10 14:09:12,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2024-11-10 14:09:12,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2024-11-10 14:09:12,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2024-11-10 14:09:12,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2024-11-10 14:09:12,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2024-11-10 14:09:12,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2024-11-10 14:09:12,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2024-11-10 14:09:12,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2024-11-10 14:09:12,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2024-11-10 14:09:12,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2024-11-10 14:09:12,568 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2024-11-10 14:09:12,569 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2024-11-10 14:09:12,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2024-11-10 14:09:12,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2024-11-10 14:09:12,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2024-11-10 14:09:12,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2024-11-10 14:09:12,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2024-11-10 14:09:12,570 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2024-11-10 14:09:12,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2024-11-10 14:09:12,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2024-11-10 14:09:12,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2024-11-10 14:09:12,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2024-11-10 14:09:12,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2024-11-10 14:09:12,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2024-11-10 14:09:12,571 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2024-11-10 14:09:12,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2024-11-10 14:09:12,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2024-11-10 14:09:12,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2024-11-10 14:09:12,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2024-11-10 14:09:12,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2024-11-10 14:09:12,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2024-11-10 14:09:12,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2024-11-10 14:09:12,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2024-11-10 14:09:12,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2024-11-10 14:09:12,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2024-11-10 14:09:12,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2024-11-10 14:09:12,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2024-11-10 14:09:12,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2024-11-10 14:09:12,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2024-11-10 14:09:12,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2024-11-10 14:09:12,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2024-11-10 14:09:12,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2024-11-10 14:09:12,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2024-11-10 14:09:12,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2024-11-10 14:09:12,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2024-11-10 14:09:12,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2024-11-10 14:09:12,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:09:12,578 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-10 14:09:12,579 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 14:09:12,579 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-10 14:09:12,720 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:09:12,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 591 places, 619 transitions, 1266 flow [2024-11-10 14:09:12,870 INFO L124 PetriNetUnfolderBase]: 41/665 cut-off events. [2024-11-10 14:09:12,870 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-10 14:09:12,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 665 events. 41/665 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2391 event pairs, 0 based on Foata normal form. 0/543 useless extension candidates. Maximal degree in co-relation 536. Up to 10 conditions per place. [2024-11-10 14:09:12,891 INFO L82 GeneralOperation]: Start removeDead. Operand has 591 places, 619 transitions, 1266 flow [2024-11-10 14:09:12,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 591 places, 619 transitions, 1266 flow [2024-11-10 14:09:12,905 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:09:12,906 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;@32dfdafc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:09:12,906 INFO L334 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2024-11-10 14:09:12,913 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:09:12,914 INFO L124 PetriNetUnfolderBase]: 4/121 cut-off events. [2024-11-10 14:09:12,914 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:09:12,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:12,914 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 14:09:12,914 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 14:09:12,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:12,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1952159520, now seen corresponding path program 1 times [2024-11-10 14:09:12,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:12,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933049604] [2024-11-10 14:09:12,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:12,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:09:12,964 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 14:09:12,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:09:12,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933049604] [2024-11-10 14:09:12,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933049604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:09:12,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:09:12,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 14:09:12,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811740738] [2024-11-10 14:09:12,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:09:12,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 14:09:12,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:09:12,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 14:09:12,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 14:09:12,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 533 out of 619 [2024-11-10 14:09:12,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 591 places, 619 transitions, 1266 flow. Second operand has 2 states, 2 states have (on average 534.0) internal successors, (1068), 2 states have internal predecessors, (1068), 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 14:09:12,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:09:12,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 533 of 619 [2024-11-10 14:09:12,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:09:14,567 INFO L124 PetriNetUnfolderBase]: 324/4874 cut-off events. [2024-11-10 14:09:14,567 INFO L125 PetriNetUnfolderBase]: For 496/496 co-relation queries the response was YES. [2024-11-10 14:09:14,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5386 conditions, 4874 events. 324/4874 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 42066 event pairs, 204 based on Foata normal form. 1101/5393 useless extension candidates. Maximal degree in co-relation 1735. Up to 325 conditions per place. [2024-11-10 14:09:14,659 INFO L140 encePairwiseOnDemand]: 549/619 looper letters, 12 selfloop transitions, 0 changer transitions 0/514 dead transitions. [2024-11-10 14:09:14,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 514 transitions, 1080 flow [2024-11-10 14:09:14,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 14:09:14,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 14:09:14,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1148 transitions. [2024-11-10 14:09:14,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9273021001615509 [2024-11-10 14:09:14,664 INFO L175 Difference]: Start difference. First operand has 591 places, 619 transitions, 1266 flow. Second operand 2 states and 1148 transitions. [2024-11-10 14:09:14,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 514 transitions, 1080 flow [2024-11-10 14:09:14,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 514 transitions, 1074 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-10 14:09:14,674 INFO L231 Difference]: Finished difference. Result has 512 places, 514 transitions, 1050 flow [2024-11-10 14:09:14,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=619, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1050, PETRI_PLACES=512, PETRI_TRANSITIONS=514} [2024-11-10 14:09:14,676 INFO L277 CegarLoopForPetriNet]: 591 programPoint places, -79 predicate places. [2024-11-10 14:09:14,676 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 514 transitions, 1050 flow [2024-11-10 14:09:14,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 534.0) internal successors, (1068), 2 states have internal predecessors, (1068), 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 14:09:14,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:14,678 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 14:09:14,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:09:14,678 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 14:09:14,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:14,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1587093674, now seen corresponding path program 1 times [2024-11-10 14:09:14,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:14,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159061307] [2024-11-10 14:09:14,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:14,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:09:15,415 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 14:09:15,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:09:15,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159061307] [2024-11-10 14:09:15,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159061307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:09:15,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:09:15,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:09:15,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047974269] [2024-11-10 14:09:15,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:09:15,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:09:15,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:09:15,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:09:15,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:09:16,493 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 504 out of 619 [2024-11-10 14:09:16,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 514 transitions, 1050 flow. Second operand has 6 states, 6 states have (on average 505.5) internal successors, (3033), 6 states have internal predecessors, (3033), 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 14:09:16,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:09:16,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 504 of 619 [2024-11-10 14:09:16,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:09:29,717 INFO L124 PetriNetUnfolderBase]: 6435/50986 cut-off events. [2024-11-10 14:09:29,717 INFO L125 PetriNetUnfolderBase]: For 3013/3013 co-relation queries the response was YES. [2024-11-10 14:09:30,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60800 conditions, 50986 events. 6435/50986 cut-off events. For 3013/3013 co-relation queries the response was YES. Maximal size of possible extension queue 753. Compared 738686 event pairs, 1571 based on Foata normal form. 0/44550 useless extension candidates. Maximal degree in co-relation 60793. Up to 5949 conditions per place. [2024-11-10 14:09:31,069 INFO L140 encePairwiseOnDemand]: 588/619 looper letters, 60 selfloop transitions, 45 changer transitions 0/579 dead transitions. [2024-11-10 14:09:31,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 579 transitions, 1450 flow [2024-11-10 14:09:31,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:09:31,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:09:31,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3133 transitions. [2024-11-10 14:09:31,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8435648896068928 [2024-11-10 14:09:31,078 INFO L175 Difference]: Start difference. First operand has 512 places, 514 transitions, 1050 flow. Second operand 6 states and 3133 transitions. [2024-11-10 14:09:31,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 579 transitions, 1450 flow [2024-11-10 14:09:31,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 517 places, 579 transitions, 1450 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:09:31,095 INFO L231 Difference]: Finished difference. Result has 522 places, 558 transitions, 1378 flow [2024-11-10 14:09:31,096 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=619, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1378, PETRI_PLACES=522, PETRI_TRANSITIONS=558} [2024-11-10 14:09:31,099 INFO L277 CegarLoopForPetriNet]: 591 programPoint places, -69 predicate places. [2024-11-10 14:09:31,099 INFO L471 AbstractCegarLoop]: Abstraction has has 522 places, 558 transitions, 1378 flow [2024-11-10 14:09:31,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 505.5) internal successors, (3033), 6 states have internal predecessors, (3033), 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 14:09:31,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:09:31,101 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 14:09:31,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:09:31,102 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 14:09:31,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:09:31,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1909881669, now seen corresponding path program 1 times [2024-11-10 14:09:31,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:09:31,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106213807] [2024-11-10 14:09:31,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:09:31,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:09:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:09:31,856 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 14:09:31,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:09:31,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106213807] [2024-11-10 14:09:31,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106213807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:09:31,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:09:31,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:09:31,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041019933] [2024-11-10 14:09:31,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:09:31,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:09:31,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:09:31,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:09:31,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:09:33,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 504 out of 619 [2024-11-10 14:09:33,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 558 transitions, 1378 flow. Second operand has 6 states, 6 states have (on average 505.6666666666667) internal successors, (3034), 6 states have internal predecessors, (3034), 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 14:09:33,009 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:09:33,009 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 504 of 619 [2024-11-10 14:09:33,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand