./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.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 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:13:36,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:13:36,331 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:13:36,336 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:13:36,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:13:36,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:13:36,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:13:36,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:13:36,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:13:36,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:13:36,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:13:36,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:13:36,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:13:36,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:13:36,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:13:36,382 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:13:36,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:13:36,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:13:36,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:13:36,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:13:36,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:13:36,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:13:36,385 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:13:36,386 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:13:36,386 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:13:36,386 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:13:36,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:13:36,387 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:13:36,388 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:13:36,389 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:13:36,389 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:13:36,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:13:36,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:13:36,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:13:36,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:13:36,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:13:36,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:13:36,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:13:36,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:13:36,391 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:13:36,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:13:36,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb [2024-11-16 23:13:36,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:13:36,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:13:36,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:13:36,709 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:13:36,710 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:13:36,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2024-11-16 23:13:38,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:13:38,651 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:13:38,653 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2024-11-16 23:13:38,676 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dbaddab2/7d75f17d5f08449d81a73e5f37845a6d/FLAGc356167d5 [2024-11-16 23:13:38,694 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dbaddab2/7d75f17d5f08449d81a73e5f37845a6d [2024-11-16 23:13:38,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:13:38,700 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:13:38,703 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:13:38,703 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:13:38,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:13:38,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:13:38" (1/1) ... [2024-11-16 23:13:38,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd9a66c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:38, skipping insertion in model container [2024-11-16 23:13:38,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:13:38" (1/1) ... [2024-11-16 23:13:38,757 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:13:39,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:13:39,151 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:13:39,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:13:39,249 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:13:39,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39 WrapperNode [2024-11-16 23:13:39,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:13:39,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:13:39,254 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:13:39,254 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:13:39,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39" (1/1) ... [2024-11-16 23:13:39,288 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39" (1/1) ... [2024-11-16 23:13:39,328 INFO L138 Inliner]: procedures = 170, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 144 [2024-11-16 23:13:39,332 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:13:39,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:13:39,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:13:39,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:13:39,347 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39" (1/1) ... [2024-11-16 23:13:39,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39" (1/1) ... [2024-11-16 23:13:39,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39" (1/1) ... [2024-11-16 23:13:39,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39" (1/1) ... [2024-11-16 23:13:39,369 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39" (1/1) ... [2024-11-16 23:13:39,376 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39" (1/1) ... [2024-11-16 23:13:39,378 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39" (1/1) ... [2024-11-16 23:13:39,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39" (1/1) ... [2024-11-16 23:13:39,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:13:39,388 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:13:39,388 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:13:39,388 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:13:39,389 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39" (1/1) ... [2024-11-16 23:13:39,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:13:39,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:13:39,447 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:13:39,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:13:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:13:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-16 23:13:39,502 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-16 23:13:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:13:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:13:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:13:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:13:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:13:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:13:39,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:13:39,505 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:13:39,623 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:13:39,625 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:13:40,003 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:13:40,003 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:13:40,200 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:13:40,201 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:13:40,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:13:40 BoogieIcfgContainer [2024-11-16 23:13:40,202 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:13:40,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:13:40,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:13:40,209 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:13:40,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:13:38" (1/3) ... [2024-11-16 23:13:40,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b5b269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:13:40, skipping insertion in model container [2024-11-16 23:13:40,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:13:39" (2/3) ... [2024-11-16 23:13:40,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b5b269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:13:40, skipping insertion in model container [2024-11-16 23:13:40,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:13:40" (3/3) ... [2024-11-16 23:13:40,214 INFO L112 eAbstractionObserver]: Analyzing ICFG 12_fmaxsymopt_cas.i [2024-11-16 23:13:40,232 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:13:40,233 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-16 23:13:40,234 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:13:40,337 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:13:40,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 131 transitions, 266 flow [2024-11-16 23:13:40,461 INFO L124 PetriNetUnfolderBase]: 13/141 cut-off events. [2024-11-16 23:13:40,462 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:13:40,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 141 events. 13/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 226 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 109. Up to 4 conditions per place. [2024-11-16 23:13:40,471 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 131 transitions, 266 flow [2024-11-16 23:13:40,477 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 131 transitions, 266 flow [2024-11-16 23:13:40,487 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:13:40,493 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;@243eb2fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:13:40,493 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-16 23:13:40,505 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:13:40,505 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-16 23:13:40,505 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:13:40,506 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:40,506 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] [2024-11-16 23:13:40,507 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-16 23:13:40,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:40,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1375465739, now seen corresponding path program 1 times [2024-11-16 23:13:40,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:40,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890818316] [2024-11-16 23:13:40,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:40,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:40,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:13:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:40,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:13:40,707 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:13:40,708 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-16 23:13:40,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-11-16 23:13:40,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-11-16 23:13:40,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-11-16 23:13:40,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2024-11-16 23:13:40,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-11-16 23:13:40,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2024-11-16 23:13:40,712 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-11-16 23:13:40,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-11-16 23:13:40,713 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-11-16 23:13:40,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-11-16 23:13:40,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-11-16 23:13:40,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-11-16 23:13:40,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-11-16 23:13:40,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-11-16 23:13:40,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-11-16 23:13:40,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-11-16 23:13:40,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:13:40,718 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 23:13:40,721 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:13:40,724 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:13:40,820 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:13:40,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 229 transitions, 468 flow [2024-11-16 23:13:40,910 INFO L124 PetriNetUnfolderBase]: 25/251 cut-off events. [2024-11-16 23:13:40,911 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:13:40,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 251 events. 25/251 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 702 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 206. Up to 6 conditions per place. [2024-11-16 23:13:40,918 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 229 transitions, 468 flow [2024-11-16 23:13:40,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 229 transitions, 468 flow [2024-11-16 23:13:40,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:13:40,927 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;@243eb2fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:13:40,929 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-16 23:13:40,940 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:13:40,943 INFO L124 PetriNetUnfolderBase]: 4/80 cut-off events. [2024-11-16 23:13:40,944 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:13:40,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:40,944 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] [2024-11-16 23:13:40,945 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-16 23:13:40,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:40,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1717857399, now seen corresponding path program 1 times [2024-11-16 23:13:40,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:40,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502429733] [2024-11-16 23:13:40,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:40,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:40,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:13:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:41,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:13:41,022 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:13:41,023 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-11-16 23:13:41,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2024-11-16 23:13:41,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2024-11-16 23:13:41,023 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2024-11-16 23:13:41,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2024-11-16 23:13:41,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2024-11-16 23:13:41,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2024-11-16 23:13:41,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2024-11-16 23:13:41,024 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2024-11-16 23:13:41,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2024-11-16 23:13:41,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2024-11-16 23:13:41,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2024-11-16 23:13:41,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2024-11-16 23:13:41,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2024-11-16 23:13:41,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2024-11-16 23:13:41,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2024-11-16 23:13:41,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2024-11-16 23:13:41,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2024-11-16 23:13:41,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2024-11-16 23:13:41,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2024-11-16 23:13:41,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2024-11-16 23:13:41,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2024-11-16 23:13:41,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2024-11-16 23:13:41,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2024-11-16 23:13:41,028 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2024-11-16 23:13:41,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:13:41,028 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 23:13:41,029 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:13:41,029 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:13:41,140 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:13:41,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 300 places, 327 transitions, 672 flow [2024-11-16 23:13:41,231 INFO L124 PetriNetUnfolderBase]: 37/361 cut-off events. [2024-11-16 23:13:41,232 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-16 23:13:41,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 361 events. 37/361 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1266 event pairs, 0 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 303. Up to 8 conditions per place. [2024-11-16 23:13:41,239 INFO L82 GeneralOperation]: Start removeDead. Operand has 300 places, 327 transitions, 672 flow [2024-11-16 23:13:41,246 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 300 places, 327 transitions, 672 flow [2024-11-16 23:13:41,249 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:13:41,251 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;@243eb2fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:13:41,254 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-16 23:13:41,270 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:13:41,270 INFO L124 PetriNetUnfolderBase]: 8/125 cut-off events. [2024-11-16 23:13:41,270 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-16 23:13:41,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:41,271 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] [2024-11-16 23:13:41,271 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-16 23:13:41,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:41,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1753342980, now seen corresponding path program 1 times [2024-11-16 23:13:41,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:41,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939024752] [2024-11-16 23:13:41,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:41,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:41,319 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:13:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:41,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:13:41,357 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:13:41,358 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-11-16 23:13:41,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-11-16 23:13:41,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-11-16 23:13:41,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-11-16 23:13:41,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-11-16 23:13:41,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-11-16 23:13:41,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2024-11-16 23:13:41,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-11-16 23:13:41,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-11-16 23:13:41,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-11-16 23:13:41,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-11-16 23:13:41,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-11-16 23:13:41,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-11-16 23:13:41,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-11-16 23:13:41,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-11-16 23:13:41,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-11-16 23:13:41,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-11-16 23:13:41,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-11-16 23:13:41,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-11-16 23:13:41,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-11-16 23:13:41,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-11-16 23:13:41,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-11-16 23:13:41,362 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-11-16 23:13:41,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-11-16 23:13:41,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-11-16 23:13:41,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-11-16 23:13:41,363 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-11-16 23:13:41,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-11-16 23:13:41,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-11-16 23:13:41,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-11-16 23:13:41,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-11-16 23:13:41,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-11-16 23:13:41,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-11-16 23:13:41,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:13:41,369 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-16 23:13:41,370 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:13:41,370 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-16 23:13:41,496 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:13:41,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 389 places, 425 transitions, 878 flow [2024-11-16 23:13:41,624 INFO L124 PetriNetUnfolderBase]: 49/471 cut-off events. [2024-11-16 23:13:41,625 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-16 23:13:41,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 471 events. 49/471 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1887 event pairs, 0 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 400. Up to 10 conditions per place. [2024-11-16 23:13:41,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 389 places, 425 transitions, 878 flow [2024-11-16 23:13:41,640 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 389 places, 425 transitions, 878 flow [2024-11-16 23:13:41,641 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:13:41,642 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;@243eb2fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:13:41,642 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-16 23:13:41,657 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:13:41,658 INFO L124 PetriNetUnfolderBase]: 10/157 cut-off events. [2024-11-16 23:13:41,658 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-16 23:13:41,658 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:41,658 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] [2024-11-16 23:13:41,659 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-16 23:13:41,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:41,659 INFO L85 PathProgramCache]: Analyzing trace with hash -798892364, now seen corresponding path program 1 times [2024-11-16 23:13:41,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:41,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151487879] [2024-11-16 23:13:41,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:41,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:42,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:13:42,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:42,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151487879] [2024-11-16 23:13:42,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151487879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:42,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:42,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:13:42,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342116532] [2024-11-16 23:13:42,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:42,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:13:42,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:42,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:13:42,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:13:43,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 359 out of 425 [2024-11-16 23:13:43,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 425 transitions, 878 flow. Second operand has 6 states, 6 states have (on average 360.6666666666667) internal successors, (2164), 6 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:43,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:43,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 359 of 425 [2024-11-16 23:13:43,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:46,468 INFO L124 PetriNetUnfolderBase]: 748/7775 cut-off events. [2024-11-16 23:13:46,468 INFO L125 PetriNetUnfolderBase]: For 1045/1045 co-relation queries the response was YES. [2024-11-16 23:13:46,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8946 conditions, 7775 events. 748/7775 cut-off events. For 1045/1045 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 83546 event pairs, 239 based on Foata normal form. 2175/8962 useless extension candidates. Maximal degree in co-relation 3577. Up to 557 conditions per place. [2024-11-16 23:13:46,616 INFO L140 encePairwiseOnDemand]: 373/425 looper letters, 31 selfloop transitions, 18 changer transitions 0/401 dead transitions. [2024-11-16 23:13:46,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 401 transitions, 1012 flow [2024-11-16 23:13:46,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:13:46,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:13:46,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2376 transitions. [2024-11-16 23:13:46,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9317647058823529 [2024-11-16 23:13:46,646 INFO L175 Difference]: Start difference. First operand has 389 places, 425 transitions, 878 flow. Second operand 6 states and 2376 transitions. [2024-11-16 23:13:46,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 401 transitions, 1012 flow [2024-11-16 23:13:46,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 401 transitions, 982 flow, removed 15 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:46,667 INFO L231 Difference]: Finished difference. Result has 371 places, 389 transitions, 890 flow [2024-11-16 23:13:46,670 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=890, PETRI_PLACES=371, PETRI_TRANSITIONS=389} [2024-11-16 23:13:46,675 INFO L277 CegarLoopForPetriNet]: 389 programPoint places, -18 predicate places. [2024-11-16 23:13:46,676 INFO L471 AbstractCegarLoop]: Abstraction has has 371 places, 389 transitions, 890 flow [2024-11-16 23:13:46,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 360.6666666666667) internal successors, (2164), 6 states have internal predecessors, (2164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:46,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:46,678 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] [2024-11-16 23:13:46,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:13:46,678 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-16 23:13:46,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:46,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1846260439, now seen corresponding path program 1 times [2024-11-16 23:13:46,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:46,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2352301] [2024-11-16 23:13:46,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:46,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:46,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:13:46,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:46,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2352301] [2024-11-16 23:13:46,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2352301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:46,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:46,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:13:46,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176760358] [2024-11-16 23:13:46,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:46,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:13:46,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:46,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:13:46,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:13:46,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 364 out of 425 [2024-11-16 23:13:46,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 389 transitions, 890 flow. Second operand has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:46,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:46,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 364 of 425 [2024-11-16 23:13:46,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:49,958 INFO L124 PetriNetUnfolderBase]: 1004/10019 cut-off events. [2024-11-16 23:13:49,958 INFO L125 PetriNetUnfolderBase]: For 1412/2269 co-relation queries the response was YES. [2024-11-16 23:13:50,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12323 conditions, 10019 events. 1004/10019 cut-off events. For 1412/2269 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 114930 event pairs, 248 based on Foata normal form. 32/8778 useless extension candidates. Maximal degree in co-relation 11318. Up to 580 conditions per place. [2024-11-16 23:13:50,119 INFO L140 encePairwiseOnDemand]: 422/425 looper letters, 45 selfloop transitions, 3 changer transitions 0/409 dead transitions. [2024-11-16 23:13:50,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 409 transitions, 1101 flow [2024-11-16 23:13:50,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:13:50,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:13:50,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1115 transitions. [2024-11-16 23:13:50,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8745098039215686 [2024-11-16 23:13:50,127 INFO L175 Difference]: Start difference. First operand has 371 places, 389 transitions, 890 flow. Second operand 3 states and 1115 transitions. [2024-11-16 23:13:50,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 409 transitions, 1101 flow [2024-11-16 23:13:50,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 409 transitions, 1101 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:50,146 INFO L231 Difference]: Finished difference. Result has 374 places, 391 transitions, 915 flow [2024-11-16 23:13:50,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=915, PETRI_PLACES=374, PETRI_TRANSITIONS=391} [2024-11-16 23:13:50,148 INFO L277 CegarLoopForPetriNet]: 389 programPoint places, -15 predicate places. [2024-11-16 23:13:50,148 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 391 transitions, 915 flow [2024-11-16 23:13:50,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:50,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:50,151 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:13:50,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:13:50,151 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-16 23:13:50,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:50,152 INFO L85 PathProgramCache]: Analyzing trace with hash 961670276, now seen corresponding path program 1 times [2024-11-16 23:13:50,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:50,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297759442] [2024-11-16 23:13:50,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:50,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:50,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:13:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:13:50,200 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:13:50,203 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:13:50,204 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-11-16 23:13:50,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2024-11-16 23:13:50,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2024-11-16 23:13:50,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2024-11-16 23:13:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2024-11-16 23:13:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2024-11-16 23:13:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 41 remaining) [2024-11-16 23:13:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2024-11-16 23:13:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2024-11-16 23:13:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2024-11-16 23:13:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2024-11-16 23:13:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2024-11-16 23:13:50,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2024-11-16 23:13:50,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2024-11-16 23:13:50,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2024-11-16 23:13:50,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2024-11-16 23:13:50,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2024-11-16 23:13:50,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2024-11-16 23:13:50,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2024-11-16 23:13:50,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2024-11-16 23:13:50,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2024-11-16 23:13:50,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2024-11-16 23:13:50,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2024-11-16 23:13:50,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2024-11-16 23:13:50,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2024-11-16 23:13:50,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2024-11-16 23:13:50,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2024-11-16 23:13:50,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2024-11-16 23:13:50,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2024-11-16 23:13:50,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2024-11-16 23:13:50,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2024-11-16 23:13:50,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2024-11-16 23:13:50,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2024-11-16 23:13:50,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2024-11-16 23:13:50,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2024-11-16 23:13:50,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2024-11-16 23:13:50,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2024-11-16 23:13:50,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2024-11-16 23:13:50,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2024-11-16 23:13:50,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2024-11-16 23:13:50,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2024-11-16 23:13:50,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:13:50,210 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-16 23:13:50,211 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:13:50,211 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-16 23:13:50,323 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:13:50,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 478 places, 523 transitions, 1086 flow [2024-11-16 23:13:50,533 INFO L124 PetriNetUnfolderBase]: 61/581 cut-off events. [2024-11-16 23:13:50,533 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-16 23:13:50,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 581 events. 61/581 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2509 event pairs, 0 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 497. Up to 12 conditions per place. [2024-11-16 23:13:50,546 INFO L82 GeneralOperation]: Start removeDead. Operand has 478 places, 523 transitions, 1086 flow [2024-11-16 23:13:50,555 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 478 places, 523 transitions, 1086 flow [2024-11-16 23:13:50,557 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:13:50,557 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;@243eb2fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:13:50,559 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-11-16 23:13:50,573 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:13:50,574 INFO L124 PetriNetUnfolderBase]: 10/162 cut-off events. [2024-11-16 23:13:50,574 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-16 23:13:50,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:50,574 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] [2024-11-16 23:13:50,574 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-16 23:13:50,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:50,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1746149643, now seen corresponding path program 1 times [2024-11-16 23:13:50,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:50,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845804548] [2024-11-16 23:13:50,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:50,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:50,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:13:50,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:50,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845804548] [2024-11-16 23:13:50,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845804548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:50,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:50,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:13:50,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50478116] [2024-11-16 23:13:50,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:50,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:13:50,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:50,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:13:50,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:13:51,877 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 523 [2024-11-16 23:13:51,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 523 transitions, 1086 flow. Second operand has 6 states, 6 states have (on average 445.6666666666667) internal successors, (2674), 6 states have internal predecessors, (2674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:51,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:51,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 523 [2024-11-16 23:13:51,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:13:58,255 INFO L124 PetriNetUnfolderBase]: 1883/17330 cut-off events. [2024-11-16 23:13:58,255 INFO L125 PetriNetUnfolderBase]: For 3507/3507 co-relation queries the response was YES. [2024-11-16 23:13:58,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20376 conditions, 17330 events. 1883/17330 cut-off events. For 3507/3507 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 213936 event pairs, 702 based on Foata normal form. 6063/21185 useless extension candidates. Maximal degree in co-relation 8912. Up to 1468 conditions per place. [2024-11-16 23:13:58,656 INFO L140 encePairwiseOnDemand]: 460/523 looper letters, 37 selfloop transitions, 22 changer transitions 0/495 dead transitions. [2024-11-16 23:13:58,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 495 transitions, 1276 flow [2024-11-16 23:13:58,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:13:58,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:13:58,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2946 transitions. [2024-11-16 23:13:58,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9388145315487572 [2024-11-16 23:13:58,666 INFO L175 Difference]: Start difference. First operand has 478 places, 523 transitions, 1086 flow. Second operand 6 states and 2946 transitions. [2024-11-16 23:13:58,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 495 transitions, 1276 flow [2024-11-16 23:13:58,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 495 transitions, 1216 flow, removed 30 selfloop flow, removed 0 redundant places. [2024-11-16 23:13:58,685 INFO L231 Difference]: Finished difference. Result has 454 places, 479 transitions, 1094 flow [2024-11-16 23:13:58,686 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=523, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1094, PETRI_PLACES=454, PETRI_TRANSITIONS=479} [2024-11-16 23:13:58,687 INFO L277 CegarLoopForPetriNet]: 478 programPoint places, -24 predicate places. [2024-11-16 23:13:58,687 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 479 transitions, 1094 flow [2024-11-16 23:13:58,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 445.6666666666667) internal successors, (2674), 6 states have internal predecessors, (2674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:58,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:13:58,691 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] [2024-11-16 23:13:58,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:13:58,692 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-16 23:13:58,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:13:58,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2065095704, now seen corresponding path program 1 times [2024-11-16 23:13:58,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:13:58,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994877161] [2024-11-16 23:13:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:13:58,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:13:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:13:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:13:58,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:13:58,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994877161] [2024-11-16 23:13:58,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994877161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:13:58,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:13:58,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:13:58,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53113532] [2024-11-16 23:13:58,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:13:58,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:13:58,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:13:58,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:13:58,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:13:58,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 523 [2024-11-16 23:13:58,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 479 transitions, 1094 flow. Second operand has 3 states, 3 states have (on average 451.0) internal successors, (1353), 3 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:13:58,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:13:58,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 523 [2024-11-16 23:13:58,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:14:05,522 INFO L124 PetriNetUnfolderBase]: 2687/23921 cut-off events. [2024-11-16 23:14:05,522 INFO L125 PetriNetUnfolderBase]: For 4057/6409 co-relation queries the response was YES. [2024-11-16 23:14:05,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29834 conditions, 23921 events. 2687/23921 cut-off events. For 4057/6409 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 319155 event pairs, 702 based on Foata normal form. 79/20980 useless extension candidates. Maximal degree in co-relation 27885. Up to 1640 conditions per place. [2024-11-16 23:14:06,133 INFO L140 encePairwiseOnDemand]: 520/523 looper letters, 57 selfloop transitions, 3 changer transitions 0/505 dead transitions. [2024-11-16 23:14:06,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 505 transitions, 1364 flow [2024-11-16 23:14:06,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:14:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:14:06,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1374 transitions. [2024-11-16 23:14:06,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.875717017208413 [2024-11-16 23:14:06,138 INFO L175 Difference]: Start difference. First operand has 454 places, 479 transitions, 1094 flow. Second operand 3 states and 1374 transitions. [2024-11-16 23:14:06,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 505 transitions, 1364 flow [2024-11-16 23:14:06,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 505 transitions, 1364 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:14:06,332 INFO L231 Difference]: Finished difference. Result has 457 places, 481 transitions, 1119 flow [2024-11-16 23:14:06,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=523, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1119, PETRI_PLACES=457, PETRI_TRANSITIONS=481} [2024-11-16 23:14:06,338 INFO L277 CegarLoopForPetriNet]: 478 programPoint places, -21 predicate places. [2024-11-16 23:14:06,338 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 481 transitions, 1119 flow [2024-11-16 23:14:06,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.0) internal successors, (1353), 3 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:14:06,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:14:06,341 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] [2024-11-16 23:14:06,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:14:06,345 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-11-16 23:14:06,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:14:06,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1939938680, now seen corresponding path program 1 times [2024-11-16 23:14:06,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:14:06,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859372932] [2024-11-16 23:14:06,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:14:06,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:14:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:14:06,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:14:06,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:14:06,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859372932] [2024-11-16 23:14:06,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859372932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:14:06,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:14:06,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:14:06,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016975570] [2024-11-16 23:14:06,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:14:06,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:14:06,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:14:06,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:14:06,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:14:07,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 523 [2024-11-16 23:14:07,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 481 transitions, 1119 flow. Second operand has 6 states, 6 states have (on average 445.8333333333333) internal successors, (2675), 6 states have internal predecessors, (2675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:14:07,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:14:07,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 523 [2024-11-16 23:14:07,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand