./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/04_incdec_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d 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/04_incdec_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 a9295efc0d8bacfc5fb202511f0d3721ae5554ffb4def47cf5dbf45088356869 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:29:47,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:29:48,075 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:29:48,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:29:48,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:29:48,118 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:29:48,119 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:29:48,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:29:48,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:29:48,120 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:29:48,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:29:48,121 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:29:48,121 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:29:48,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:29:48,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:29:48,122 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:29:48,123 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:29:48,123 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:29:48,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:29:48,124 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:29:48,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:29:48,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:29:48,129 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:29:48,130 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:29:48,130 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:29:48,130 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:29:48,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:29:48,131 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:29:48,131 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:29:48,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:29:48,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:29:48,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:29:48,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:29:48,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:29:48,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:29:48,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:29:48,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:29:48,137 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:29:48,137 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:29:48,138 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:29:48,138 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:29:48,139 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9295efc0d8bacfc5fb202511f0d3721ae5554ffb4def47cf5dbf45088356869 [2024-11-09 06:29:48,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:29:48,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:29:48,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:29:48,480 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:29:48,480 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:29:48,482 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2024-11-09 06:29:50,170 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:29:50,459 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:29:50,461 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2024-11-09 06:29:50,477 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/063d91e41/543a2105378341918fcd61794dd564ed/FLAGe48d6fc27 [2024-11-09 06:29:50,491 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/063d91e41/543a2105378341918fcd61794dd564ed [2024-11-09 06:29:50,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:29:50,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:29:50,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:29:50,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:29:50,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:29:50,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:29:50" (1/1) ... [2024-11-09 06:29:50,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306d06a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:50, skipping insertion in model container [2024-11-09 06:29:50,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:29:50" (1/1) ... [2024-11-09 06:29:50,555 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:29:51,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:29:51,061 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:29:51,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:29:51,185 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:29:51,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51 WrapperNode [2024-11-09 06:29:51,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:29:51,186 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:29:51,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:29:51,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:29:51,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51" (1/1) ... [2024-11-09 06:29:51,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51" (1/1) ... [2024-11-09 06:29:51,266 INFO L138 Inliner]: procedures = 174, calls = 46, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 270 [2024-11-09 06:29:51,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:29:51,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:29:51,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:29:51,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:29:51,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51" (1/1) ... [2024-11-09 06:29:51,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51" (1/1) ... [2024-11-09 06:29:51,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51" (1/1) ... [2024-11-09 06:29:51,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51" (1/1) ... [2024-11-09 06:29:51,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51" (1/1) ... [2024-11-09 06:29:51,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51" (1/1) ... [2024-11-09 06:29:51,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51" (1/1) ... [2024-11-09 06:29:51,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51" (1/1) ... [2024-11-09 06:29:51,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:29:51,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:29:51,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:29:51,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:29:51,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51" (1/1) ... [2024-11-09 06:29:51,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:29:51,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:29:51,413 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) [2024-11-09 06:29:51,420 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 [2024-11-09 06:29:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:29:51,477 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-09 06:29:51,478 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-09 06:29:51,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:29:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 06:29:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:29:51,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:29:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:29:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:29:51,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 06:29:51,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:29:51,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:29:51,483 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:29:51,681 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:29:51,685 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:29:52,363 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:29:52,363 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:29:52,980 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:29:52,982 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 06:29:52,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:29:52 BoogieIcfgContainer [2024-11-09 06:29:52,983 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:29:52,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:29:52,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:29:52,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:29:52,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:29:50" (1/3) ... [2024-11-09 06:29:52,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6a068f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:29:52, skipping insertion in model container [2024-11-09 06:29:52,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:51" (2/3) ... [2024-11-09 06:29:52,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6a068f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:29:52, skipping insertion in model container [2024-11-09 06:29:52,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:29:52" (3/3) ... [2024-11-09 06:29:52,994 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2024-11-09 06:29:53,018 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:29:53,019 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-09 06:29:53,019 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:29:53,198 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:29:53,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 121 transitions, 246 flow [2024-11-09 06:29:53,330 INFO L124 PetriNetUnfolderBase]: 10/130 cut-off events. [2024-11-09 06:29:53,330 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:29:53,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 130 events. 10/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 349 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2024-11-09 06:29:53,340 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 121 transitions, 246 flow [2024-11-09 06:29:53,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 121 transitions, 246 flow [2024-11-09 06:29:53,354 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:29:53,364 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;@7f6b125c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:29:53,365 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-11-09 06:29:53,377 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:29:53,378 INFO L124 PetriNetUnfolderBase]: 2/48 cut-off events. [2024-11-09 06:29:53,378 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:29:53,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:53,379 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 06:29:53,380 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-11-09 06:29:53,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:53,384 INFO L85 PathProgramCache]: Analyzing trace with hash 813309867, now seen corresponding path program 1 times [2024-11-09 06:29:53,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:53,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627947652] [2024-11-09 06:29:53,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:53,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:29:53,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:29:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:29:53,612 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:29:53,614 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:29:53,617 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2024-11-09 06:29:53,619 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2024-11-09 06:29:53,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2024-11-09 06:29:53,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2024-11-09 06:29:53,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2024-11-09 06:29:53,620 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2024-11-09 06:29:53,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2024-11-09 06:29:53,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2024-11-09 06:29:53,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2024-11-09 06:29:53,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2024-11-09 06:29:53,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2024-11-09 06:29:53,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2024-11-09 06:29:53,623 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2024-11-09 06:29:53,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2024-11-09 06:29:53,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2024-11-09 06:29:53,624 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2024-11-09 06:29:53,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2024-11-09 06:29:53,625 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2024-11-09 06:29:53,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2024-11-09 06:29:53,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2024-11-09 06:29:53,627 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2024-11-09 06:29:53,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2024-11-09 06:29:53,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2024-11-09 06:29:53,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2024-11-09 06:29:53,628 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2024-11-09 06:29:53,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2024-11-09 06:29:53,629 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2024-11-09 06:29:53,630 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2024-11-09 06:29:53,631 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2024-11-09 06:29:53,632 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2024-11-09 06:29:53,632 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2024-11-09 06:29:53,632 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2024-11-09 06:29:53,633 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2024-11-09 06:29:53,633 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2024-11-09 06:29:53,634 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2024-11-09 06:29:53,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2024-11-09 06:29:53,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2024-11-09 06:29:53,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:29:53,638 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:29:53,646 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:29:53,646 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 06:29:53,836 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:29:53,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 212 transitions, 434 flow [2024-11-09 06:29:53,925 INFO L124 PetriNetUnfolderBase]: 19/232 cut-off events. [2024-11-09 06:29:53,926 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 06:29:53,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 232 events. 19/232 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 928 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 191. Up to 6 conditions per place. [2024-11-09 06:29:53,932 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 212 transitions, 434 flow [2024-11-09 06:29:53,937 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 212 transitions, 434 flow [2024-11-09 06:29:53,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:29:53,941 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;@7f6b125c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:29:53,942 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2024-11-09 06:29:53,955 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:29:53,956 INFO L124 PetriNetUnfolderBase]: 3/69 cut-off events. [2024-11-09 06:29:53,956 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:29:53,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:53,957 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] [2024-11-09 06:29:53,957 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-09 06:29:53,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:53,958 INFO L85 PathProgramCache]: Analyzing trace with hash -458842001, now seen corresponding path program 1 times [2024-11-09 06:29:53,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:53,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484530249] [2024-11-09 06:29:53,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:53,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:54,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:54,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:54,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484530249] [2024-11-09 06:29:54,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484530249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:54,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:54,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:29:54,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014527337] [2024-11-09 06:29:54,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:54,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:29:54,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:54,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:29:54,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:29:54,560 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 212 [2024-11-09 06:29:54,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 212 transitions, 434 flow. Second operand has 2 states, 2 states have (on average 159.0) internal successors, (318), 2 states have internal predecessors, (318), 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) [2024-11-09 06:29:54,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:54,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 212 [2024-11-09 06:29:54,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:29:55,201 INFO L124 PetriNetUnfolderBase]: 97/710 cut-off events. [2024-11-09 06:29:55,202 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-09 06:29:55,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 710 events. 97/710 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4583 event pairs, 42 based on Foata normal form. 57/692 useless extension candidates. Maximal degree in co-relation 130. Up to 114 conditions per place. [2024-11-09 06:29:55,215 INFO L140 encePairwiseOnDemand]: 174/212 looper letters, 16 selfloop transitions, 0 changer transitions 0/171 dead transitions. [2024-11-09 06:29:55,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 171 transitions, 384 flow [2024-11-09 06:29:55,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:29:55,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:29:55,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 370 transitions. [2024-11-09 06:29:55,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8726415094339622 [2024-11-09 06:29:55,237 INFO L175 Difference]: Start difference. First operand has 200 places, 212 transitions, 434 flow. Second operand 2 states and 370 transitions. [2024-11-09 06:29:55,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 171 transitions, 384 flow [2024-11-09 06:29:55,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 171 transitions, 384 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:29:55,249 INFO L231 Difference]: Finished difference. Result has 165 places, 171 transitions, 352 flow [2024-11-09 06:29:55,252 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=212, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=352, PETRI_PLACES=165, PETRI_TRANSITIONS=171} [2024-11-09 06:29:55,256 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, -35 predicate places. [2024-11-09 06:29:55,257 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 171 transitions, 352 flow [2024-11-09 06:29:55,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 159.0) internal successors, (318), 2 states have internal predecessors, (318), 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) [2024-11-09 06:29:55,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:55,258 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 06:29:55,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:29:55,258 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2024-11-09 06:29:55,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:55,263 INFO L85 PathProgramCache]: Analyzing trace with hash -667659965, now seen corresponding path program 1 times [2024-11-09 06:29:55,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:55,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344548193] [2024-11-09 06:29:55,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:55,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:29:55,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:29:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:29:55,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:29:55,298 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:29:55,298 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2024-11-09 06:29:55,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2024-11-09 06:29:55,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2024-11-09 06:29:55,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2024-11-09 06:29:55,299 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2024-11-09 06:29:55,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2024-11-09 06:29:55,302 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2024-11-09 06:29:55,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2024-11-09 06:29:55,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2024-11-09 06:29:55,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2024-11-09 06:29:55,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2024-11-09 06:29:55,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2024-11-09 06:29:55,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2024-11-09 06:29:55,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2024-11-09 06:29:55,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2024-11-09 06:29:55,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2024-11-09 06:29:55,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2024-11-09 06:29:55,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2024-11-09 06:29:55,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2024-11-09 06:29:55,304 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2024-11-09 06:29:55,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2024-11-09 06:29:55,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2024-11-09 06:29:55,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2024-11-09 06:29:55,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2024-11-09 06:29:55,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2024-11-09 06:29:55,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2024-11-09 06:29:55,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2024-11-09 06:29:55,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2024-11-09 06:29:55,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2024-11-09 06:29:55,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2024-11-09 06:29:55,306 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2024-11-09 06:29:55,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2024-11-09 06:29:55,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2024-11-09 06:29:55,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2024-11-09 06:29:55,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2024-11-09 06:29:55,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2024-11-09 06:29:55,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2024-11-09 06:29:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2024-11-09 06:29:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2024-11-09 06:29:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2024-11-09 06:29:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2024-11-09 06:29:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2024-11-09 06:29:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2024-11-09 06:29:55,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2024-11-09 06:29:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2024-11-09 06:29:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2024-11-09 06:29:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2024-11-09 06:29:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2024-11-09 06:29:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2024-11-09 06:29:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2024-11-09 06:29:55,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2024-11-09 06:29:55,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2024-11-09 06:29:55,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2024-11-09 06:29:55,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2024-11-09 06:29:55,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2024-11-09 06:29:55,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:29:55,317 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 06:29:55,318 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:29:55,318 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 06:29:55,565 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:29:55,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 285 places, 303 transitions, 624 flow [2024-11-09 06:29:55,657 INFO L124 PetriNetUnfolderBase]: 28/334 cut-off events. [2024-11-09 06:29:55,658 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 06:29:55,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 334 events. 28/334 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1531 event pairs, 0 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 281. Up to 8 conditions per place. [2024-11-09 06:29:55,669 INFO L82 GeneralOperation]: Start removeDead. Operand has 285 places, 303 transitions, 624 flow [2024-11-09 06:29:55,680 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 285 places, 303 transitions, 624 flow [2024-11-09 06:29:55,683 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:29:55,684 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;@7f6b125c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:29:55,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2024-11-09 06:29:55,694 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:29:55,695 INFO L124 PetriNetUnfolderBase]: 3/72 cut-off events. [2024-11-09 06:29:55,695 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:29:55,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:55,695 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] [2024-11-09 06:29:55,696 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2024-11-09 06:29:55,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:55,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1852351256, now seen corresponding path program 1 times [2024-11-09 06:29:55,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:55,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022205038] [2024-11-09 06:29:55,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:55,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:55,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:55,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022205038] [2024-11-09 06:29:55,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022205038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:55,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:55,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:29:55,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333613573] [2024-11-09 06:29:55,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:55,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:29:55,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:55,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:29:55,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:29:55,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 303 [2024-11-09 06:29:55,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 303 transitions, 624 flow. Second operand has 2 states, 2 states have (on average 224.0) internal successors, (448), 2 states have internal predecessors, (448), 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) [2024-11-09 06:29:55,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:55,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 303 [2024-11-09 06:29:55,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:29:57,841 INFO L124 PetriNetUnfolderBase]: 1077/5309 cut-off events. [2024-11-09 06:29:57,842 INFO L125 PetriNetUnfolderBase]: For 463/463 co-relation queries the response was YES. [2024-11-09 06:29:57,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6724 conditions, 5309 events. 1077/5309 cut-off events. For 463/463 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 56517 event pairs, 630 based on Foata normal form. 400/5116 useless extension candidates. Maximal degree in co-relation 839. Up to 1192 conditions per place. [2024-11-09 06:29:57,907 INFO L140 encePairwiseOnDemand]: 247/303 looper letters, 24 selfloop transitions, 0 changer transitions 0/244 dead transitions. [2024-11-09 06:29:57,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 244 transitions, 554 flow [2024-11-09 06:29:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:29:57,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:29:57,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 526 transitions. [2024-11-09 06:29:57,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8679867986798679 [2024-11-09 06:29:57,912 INFO L175 Difference]: Start difference. First operand has 285 places, 303 transitions, 624 flow. Second operand 2 states and 526 transitions. [2024-11-09 06:29:57,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 244 transitions, 554 flow [2024-11-09 06:29:57,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 244 transitions, 552 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-09 06:29:57,920 INFO L231 Difference]: Finished difference. Result has 234 places, 244 transitions, 504 flow [2024-11-09 06:29:57,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=504, PETRI_PLACES=234, PETRI_TRANSITIONS=244} [2024-11-09 06:29:57,922 INFO L277 CegarLoopForPetriNet]: 285 programPoint places, -51 predicate places. [2024-11-09 06:29:57,922 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 244 transitions, 504 flow [2024-11-09 06:29:57,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 224.0) internal successors, (448), 2 states have internal predecessors, (448), 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) [2024-11-09 06:29:57,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:57,923 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-09 06:29:57,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:29:57,923 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 69 more)] === [2024-11-09 06:29:57,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:57,924 INFO L85 PathProgramCache]: Analyzing trace with hash -668531574, now seen corresponding path program 1 times [2024-11-09 06:29:57,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:57,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450982799] [2024-11-09 06:29:57,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:57,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:29:57,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:29:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:29:57,957 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:29:57,959 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:29:57,961 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (72 of 73 remaining) [2024-11-09 06:29:57,962 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (71 of 73 remaining) [2024-11-09 06:29:57,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (70 of 73 remaining) [2024-11-09 06:29:57,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (69 of 73 remaining) [2024-11-09 06:29:57,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (68 of 73 remaining) [2024-11-09 06:29:57,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (67 of 73 remaining) [2024-11-09 06:29:57,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (66 of 73 remaining) [2024-11-09 06:29:57,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (65 of 73 remaining) [2024-11-09 06:29:57,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (64 of 73 remaining) [2024-11-09 06:29:57,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (63 of 73 remaining) [2024-11-09 06:29:57,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (62 of 73 remaining) [2024-11-09 06:29:57,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (61 of 73 remaining) [2024-11-09 06:29:57,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (60 of 73 remaining) [2024-11-09 06:29:57,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 73 remaining) [2024-11-09 06:29:57,964 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (58 of 73 remaining) [2024-11-09 06:29:57,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (57 of 73 remaining) [2024-11-09 06:29:57,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (56 of 73 remaining) [2024-11-09 06:29:57,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (55 of 73 remaining) [2024-11-09 06:29:57,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (54 of 73 remaining) [2024-11-09 06:29:57,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (53 of 73 remaining) [2024-11-09 06:29:57,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (52 of 73 remaining) [2024-11-09 06:29:57,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (51 of 73 remaining) [2024-11-09 06:29:57,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (50 of 73 remaining) [2024-11-09 06:29:57,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (49 of 73 remaining) [2024-11-09 06:29:57,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (48 of 73 remaining) [2024-11-09 06:29:57,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 73 remaining) [2024-11-09 06:29:57,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 73 remaining) [2024-11-09 06:29:57,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 73 remaining) [2024-11-09 06:29:57,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 73 remaining) [2024-11-09 06:29:57,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 73 remaining) [2024-11-09 06:29:57,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (42 of 73 remaining) [2024-11-09 06:29:57,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 73 remaining) [2024-11-09 06:29:57,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 73 remaining) [2024-11-09 06:29:57,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 73 remaining) [2024-11-09 06:29:57,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 73 remaining) [2024-11-09 06:29:57,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 73 remaining) [2024-11-09 06:29:57,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 73 remaining) [2024-11-09 06:29:57,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 73 remaining) [2024-11-09 06:29:57,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (34 of 73 remaining) [2024-11-09 06:29:57,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (33 of 73 remaining) [2024-11-09 06:29:57,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (32 of 73 remaining) [2024-11-09 06:29:57,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (31 of 73 remaining) [2024-11-09 06:29:57,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (30 of 73 remaining) [2024-11-09 06:29:57,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 73 remaining) [2024-11-09 06:29:57,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 73 remaining) [2024-11-09 06:29:57,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 73 remaining) [2024-11-09 06:29:57,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 73 remaining) [2024-11-09 06:29:57,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 73 remaining) [2024-11-09 06:29:57,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 73 remaining) [2024-11-09 06:29:57,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (23 of 73 remaining) [2024-11-09 06:29:57,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (22 of 73 remaining) [2024-11-09 06:29:57,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 73 remaining) [2024-11-09 06:29:57,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (20 of 73 remaining) [2024-11-09 06:29:57,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 73 remaining) [2024-11-09 06:29:57,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 73 remaining) [2024-11-09 06:29:57,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (17 of 73 remaining) [2024-11-09 06:29:57,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 73 remaining) [2024-11-09 06:29:57,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (15 of 73 remaining) [2024-11-09 06:29:57,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (14 of 73 remaining) [2024-11-09 06:29:57,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (13 of 73 remaining) [2024-11-09 06:29:57,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (12 of 73 remaining) [2024-11-09 06:29:57,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 73 remaining) [2024-11-09 06:29:57,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 73 remaining) [2024-11-09 06:29:57,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 73 remaining) [2024-11-09 06:29:57,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 73 remaining) [2024-11-09 06:29:57,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 73 remaining) [2024-11-09 06:29:57,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 73 remaining) [2024-11-09 06:29:57,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 73 remaining) [2024-11-09 06:29:57,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 73 remaining) [2024-11-09 06:29:57,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 73 remaining) [2024-11-09 06:29:57,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 73 remaining) [2024-11-09 06:29:57,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 73 remaining) [2024-11-09 06:29:57,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 73 remaining) [2024-11-09 06:29:57,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:29:57,977 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 06:29:57,977 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:29:57,977 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-09 06:29:58,193 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:29:58,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 370 places, 394 transitions, 816 flow [2024-11-09 06:29:58,388 INFO L124 PetriNetUnfolderBase]: 37/436 cut-off events. [2024-11-09 06:29:58,388 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-09 06:29:58,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 436 events. 37/436 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2151 event pairs, 0 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 371. Up to 10 conditions per place. [2024-11-09 06:29:58,395 INFO L82 GeneralOperation]: Start removeDead. Operand has 370 places, 394 transitions, 816 flow [2024-11-09 06:29:58,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 370 places, 394 transitions, 816 flow [2024-11-09 06:29:58,406 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:29:58,406 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;@7f6b125c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:29:58,407 INFO L334 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2024-11-09 06:29:58,412 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:29:58,413 INFO L124 PetriNetUnfolderBase]: 3/69 cut-off events. [2024-11-09 06:29:58,413 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:29:58,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:58,413 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] [2024-11-09 06:29:58,413 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2024-11-09 06:29:58,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:58,414 INFO L85 PathProgramCache]: Analyzing trace with hash 752477244, now seen corresponding path program 1 times [2024-11-09 06:29:58,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:58,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863163062] [2024-11-09 06:29:58,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:58,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:58,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:58,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863163062] [2024-11-09 06:29:58,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863163062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:58,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:58,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:29:58,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421359140] [2024-11-09 06:29:58,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:58,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:29:58,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:58,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:29:58,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:29:58,565 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 394 [2024-11-09 06:29:58,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 394 transitions, 816 flow. Second operand has 2 states, 2 states have (on average 289.0) internal successors, (578), 2 states have internal predecessors, (578), 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) [2024-11-09 06:29:58,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:58,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 394 [2024-11-09 06:29:58,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:30:07,727 INFO L124 PetriNetUnfolderBase]: 10338/39903 cut-off events. [2024-11-09 06:30:07,727 INFO L125 PetriNetUnfolderBase]: For 5804/5804 co-relation queries the response was YES. [2024-11-09 06:30:08,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52981 conditions, 39903 events. 10338/39903 cut-off events. For 5804/5804 co-relation queries the response was YES. Maximal size of possible extension queue 1421. Compared 561031 event pairs, 6804 based on Foata normal form. 2801/38142 useless extension candidates. Maximal degree in co-relation 6760. Up to 11139 conditions per place. [2024-11-09 06:30:08,449 INFO L140 encePairwiseOnDemand]: 320/394 looper letters, 32 selfloop transitions, 0 changer transitions 0/317 dead transitions. [2024-11-09 06:30:08,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 317 transitions, 726 flow [2024-11-09 06:30:08,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:30:08,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:30:08,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 682 transitions. [2024-11-09 06:30:08,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8654822335025381 [2024-11-09 06:30:08,456 INFO L175 Difference]: Start difference. First operand has 370 places, 394 transitions, 816 flow. Second operand 2 states and 682 transitions. [2024-11-09 06:30:08,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 317 transitions, 726 flow [2024-11-09 06:30:08,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 317 transitions, 720 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-09 06:30:08,478 INFO L231 Difference]: Finished difference. Result has 303 places, 317 transitions, 656 flow [2024-11-09 06:30:08,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=656, PETRI_PLACES=303, PETRI_TRANSITIONS=317} [2024-11-09 06:30:08,483 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, -67 predicate places. [2024-11-09 06:30:08,484 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 317 transitions, 656 flow [2024-11-09 06:30:08,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 289.0) internal successors, (578), 2 states have internal predecessors, (578), 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) [2024-11-09 06:30:08,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:30:08,484 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:08,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:30:08,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2024-11-09 06:30:08,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:08,487 INFO L85 PathProgramCache]: Analyzing trace with hash 994800959, now seen corresponding path program 1 times [2024-11-09 06:30:08,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:30:08,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763532332] [2024-11-09 06:30:08,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:08,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:09,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:09,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:30:09,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763532332] [2024-11-09 06:30:09,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763532332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:09,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:09,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:30:09,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185331258] [2024-11-09 06:30:09,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:09,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:30:09,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:30:09,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:30:09,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:30:09,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 394 [2024-11-09 06:30:09,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 317 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 278.6666666666667) internal successors, (1672), 6 states have internal predecessors, (1672), 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) [2024-11-09 06:30:09,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:30:09,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 394 [2024-11-09 06:30:09,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:30:37,261 INFO L124 PetriNetUnfolderBase]: 35195/109246 cut-off events. [2024-11-09 06:30:37,262 INFO L125 PetriNetUnfolderBase]: For 8686/8686 co-relation queries the response was YES. [2024-11-09 06:30:38,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153596 conditions, 109246 events. 35195/109246 cut-off events. For 8686/8686 co-relation queries the response was YES. Maximal size of possible extension queue 4160. Compared 1658099 event pairs, 14517 based on Foata normal form. 0/95645 useless extension candidates. Maximal degree in co-relation 153589. Up to 32170 conditions per place. [2024-11-09 06:30:39,652 INFO L140 encePairwiseOnDemand]: 375/394 looper letters, 104 selfloop transitions, 45 changer transitions 0/423 dead transitions. [2024-11-09 06:30:39,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 423 transitions, 1226 flow [2024-11-09 06:30:39,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:30:39,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 06:30:39,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1812 transitions. [2024-11-09 06:30:39,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.766497461928934 [2024-11-09 06:30:39,661 INFO L175 Difference]: Start difference. First operand has 303 places, 317 transitions, 656 flow. Second operand 6 states and 1812 transitions. [2024-11-09 06:30:39,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 423 transitions, 1226 flow [2024-11-09 06:30:39,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 423 transitions, 1226 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:30:39,716 INFO L231 Difference]: Finished difference. Result has 313 places, 361 transitions, 960 flow [2024-11-09 06:30:39,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=394, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=960, PETRI_PLACES=313, PETRI_TRANSITIONS=361} [2024-11-09 06:30:39,718 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, -57 predicate places. [2024-11-09 06:30:39,718 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 361 transitions, 960 flow [2024-11-09 06:30:39,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 278.6666666666667) internal successors, (1672), 6 states have internal predecessors, (1672), 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) [2024-11-09 06:30:39,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:30:39,720 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:39,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:30:39,721 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE (and 87 more)] === [2024-11-09 06:30:39,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:39,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1093031641, now seen corresponding path program 1 times [2024-11-09 06:30:39,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:30:39,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226756326] [2024-11-09 06:30:39,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:39,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:39,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:39,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:30:39,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226756326] [2024-11-09 06:30:39,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226756326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:39,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:39,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:30:39,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118670786] [2024-11-09 06:30:39,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:39,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:30:39,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:30:39,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:30:39,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:30:39,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 394 [2024-11-09 06:30:39,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 361 transitions, 960 flow. Second operand has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2024-11-09 06:30:39,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:30:39,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 394 [2024-11-09 06:30:39,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand