./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/09_fmaxsym-zero.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/09_fmaxsym-zero.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 41cf9d90b654ba629ed26494b45977a61fd5035aced9f092d4e43a94133522bd --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 13:26:00,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:26:00,965 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:26:00,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:26:00,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:26:00,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:26:00,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:26:00,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:26:00,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:26:01,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:26:01,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:26:01,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:26:01,003 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:26:01,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:26:01,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:26:01,004 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:26:01,004 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:26:01,004 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:26:01,005 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:26:01,006 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:26:01,006 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:26:01,006 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:26:01,006 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:26:01,007 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:26:01,007 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:26:01,007 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:26:01,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:26:01,007 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:26:01,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:26:01,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:26:01,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:26:01,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:26:01,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:26:01,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:26:01,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:26:01,009 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:26:01,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:26:01,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:26:01,010 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:26:01,011 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:26:01,011 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:26:01,011 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41cf9d90b654ba629ed26494b45977a61fd5035aced9f092d4e43a94133522bd [2024-11-20 13:26:01,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:26:01,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:26:01,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:26:01,244 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:26:01,244 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:26:01,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/09_fmaxsym-zero.i [2024-11-20 13:26:02,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:26:02,864 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:26:02,864 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/09_fmaxsym-zero.i [2024-11-20 13:26:02,883 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3c90a320/b071a89507d34a7194e5358dc32b84a2/FLAG411f9fbef [2024-11-20 13:26:03,233 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3c90a320/b071a89507d34a7194e5358dc32b84a2 [2024-11-20 13:26:03,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:26:03,236 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:26:03,237 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:26:03,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:26:03,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:26:03,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11dbf497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03, skipping insertion in model container [2024-11-20 13:26:03,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:26:03,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:26:03,569 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:26:03,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:26:03,645 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:26:03,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03 WrapperNode [2024-11-20 13:26:03,646 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:26:03,647 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:26:03,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:26:03,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:26:03,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,683 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,701 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 88 [2024-11-20 13:26:03,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:26:03,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:26:03,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:26:03,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:26:03,712 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,735 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:26:03,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:26:03,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:26:03,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:26:03,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03" (1/1) ... [2024-11-20 13:26:03,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:26:03,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:26:03,776 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) [2024-11-20 13:26:03,778 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 [2024-11-20 13:26:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:26:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-20 13:26:03,810 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-20 13:26:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:26:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:26:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:26:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:26:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:26:03,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:26:03,812 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:26:03,896 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:26:03,898 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:26:04,019 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:26:04,020 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:26:04,040 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:26:04,040 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 13:26:04,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:26:04 BoogieIcfgContainer [2024-11-20 13:26:04,041 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:26:04,043 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:26:04,043 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:26:04,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:26:04,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:26:03" (1/3) ... [2024-11-20 13:26:04,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735c86c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:26:04, skipping insertion in model container [2024-11-20 13:26:04,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:26:03" (2/3) ... [2024-11-20 13:26:04,051 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735c86c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:26:04, skipping insertion in model container [2024-11-20 13:26:04,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:26:04" (3/3) ... [2024-11-20 13:26:04,052 INFO L112 eAbstractionObserver]: Analyzing ICFG 09_fmaxsym-zero.i [2024-11-20 13:26:04,072 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:26:04,072 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-20 13:26:04,073 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:26:04,143 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:04,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 102 transitions, 208 flow [2024-11-20 13:26:04,216 INFO L124 PetriNetUnfolderBase]: 8/111 cut-off events. [2024-11-20 13:26:04,217 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:26:04,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 111 events. 8/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 75. Up to 4 conditions per place. [2024-11-20 13:26:04,223 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 102 transitions, 208 flow [2024-11-20 13:26:04,226 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 102 transitions, 208 flow [2024-11-20 13:26:04,235 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:04,243 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;@604a936a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:04,243 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-20 13:26:04,256 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:04,257 INFO L124 PetriNetUnfolderBase]: 2/53 cut-off events. [2024-11-20 13:26:04,257 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:26:04,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:04,258 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:04,258 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-20 13:26:04,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:04,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1044464488, now seen corresponding path program 1 times [2024-11-20 13:26:04,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:04,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350866123] [2024-11-20 13:26:04,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:04,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:04,454 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:26:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:04,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:26:04,504 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:26:04,505 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-20 13:26:04,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-20 13:26:04,507 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-20 13:26:04,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-20 13:26:04,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-20 13:26:04,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-20 13:26:04,508 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-20 13:26:04,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-20 13:26:04,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-20 13:26:04,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:26:04,510 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-20 13:26:04,512 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:26:04,515 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 13:26:04,582 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:04,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 167 transitions, 344 flow [2024-11-20 13:26:04,627 INFO L124 PetriNetUnfolderBase]: 15/187 cut-off events. [2024-11-20 13:26:04,627 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:26:04,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 187 events. 15/187 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 312 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 139. Up to 6 conditions per place. [2024-11-20 13:26:04,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 167 transitions, 344 flow [2024-11-20 13:26:04,631 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 167 transitions, 344 flow [2024-11-20 13:26:04,632 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:04,633 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;@604a936a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:04,633 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-20 13:26:04,643 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:04,643 INFO L124 PetriNetUnfolderBase]: 4/81 cut-off events. [2024-11-20 13:26:04,643 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 13:26:04,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:04,644 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:04,644 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-20 13:26:04,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:04,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1989405807, now seen corresponding path program 1 times [2024-11-20 13:26:04,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:04,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940690939] [2024-11-20 13:26:04,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:04,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:04,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:26:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:04,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:26:04,713 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:26:04,713 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-20 13:26:04,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-20 13:26:04,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-20 13:26:04,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-20 13:26:04,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-20 13:26:04,715 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-20 13:26:04,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2024-11-20 13:26:04,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-20 13:26:04,716 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-20 13:26:04,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-20 13:26:04,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-20 13:26:04,717 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-20 13:26:04,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-20 13:26:04,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:26:04,718 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-20 13:26:04,719 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:26:04,720 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-20 13:26:04,837 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:04,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 232 transitions, 482 flow [2024-11-20 13:26:04,904 INFO L124 PetriNetUnfolderBase]: 22/263 cut-off events. [2024-11-20 13:26:04,907 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 13:26:04,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 263 events. 22/263 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 657 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 203. Up to 8 conditions per place. [2024-11-20 13:26:04,911 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 232 transitions, 482 flow [2024-11-20 13:26:04,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 232 transitions, 482 flow [2024-11-20 13:26:04,916 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:04,917 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;@604a936a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:04,918 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-20 13:26:04,930 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:04,932 INFO L124 PetriNetUnfolderBase]: 7/117 cut-off events. [2024-11-20 13:26:04,932 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 13:26:04,932 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:04,933 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:04,933 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-20 13:26:04,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:04,933 INFO L85 PathProgramCache]: Analyzing trace with hash 745213654, now seen corresponding path program 1 times [2024-11-20 13:26:04,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:04,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147153733] [2024-11-20 13:26:04,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:04,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:04,972 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:26:04,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:05,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:26:05,006 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:26:05,006 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-20 13:26:05,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-11-20 13:26:05,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-11-20 13:26:05,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-11-20 13:26:05,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2024-11-20 13:26:05,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-11-20 13:26:05,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2024-11-20 13:26:05,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-11-20 13:26:05,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-11-20 13:26:05,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-11-20 13:26:05,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-11-20 13:26:05,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-11-20 13:26:05,009 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-11-20 13:26:05,010 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-11-20 13:26:05,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-11-20 13:26:05,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-11-20 13:26:05,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-11-20 13:26:05,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:26:05,012 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-20 13:26:05,013 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:26:05,013 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-20 13:26:05,061 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:05,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 281 places, 297 transitions, 622 flow [2024-11-20 13:26:05,114 INFO L124 PetriNetUnfolderBase]: 29/339 cut-off events. [2024-11-20 13:26:05,115 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-20 13:26:05,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 339 events. 29/339 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1035 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 271. Up to 10 conditions per place. [2024-11-20 13:26:05,121 INFO L82 GeneralOperation]: Start removeDead. Operand has 281 places, 297 transitions, 622 flow [2024-11-20 13:26:05,124 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 281 places, 297 transitions, 622 flow [2024-11-20 13:26:05,125 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:05,126 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;@604a936a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:05,126 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-20 13:26:05,138 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:05,139 INFO L124 PetriNetUnfolderBase]: 10/142 cut-off events. [2024-11-20 13:26:05,139 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-20 13:26:05,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:05,140 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:05,141 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:26:05,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:05,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1028094242, now seen corresponding path program 1 times [2024-11-20 13:26:05,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:05,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026920488] [2024-11-20 13:26:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:05,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:05,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:05,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:05,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026920488] [2024-11-20 13:26:05,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026920488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:05,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:05,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:26:05,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155456305] [2024-11-20 13:26:05,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:05,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:26:05,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:05,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:26:05,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:26:06,047 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 297 [2024-11-20 13:26:06,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 297 transitions, 622 flow. Second operand has 6 states, 6 states have (on average 252.66666666666666) internal successors, (1516), 6 states have internal predecessors, (1516), 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) [2024-11-20 13:26:06,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:06,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 297 [2024-11-20 13:26:06,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:07,437 INFO L124 PetriNetUnfolderBase]: 1211/7401 cut-off events. [2024-11-20 13:26:07,437 INFO L125 PetriNetUnfolderBase]: For 1768/1768 co-relation queries the response was YES. [2024-11-20 13:26:07,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9724 conditions, 7401 events. 1211/7401 cut-off events. For 1768/1768 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 79862 event pairs, 447 based on Foata normal form. 2317/8788 useless extension candidates. Maximal degree in co-relation 2824. Up to 689 conditions per place. [2024-11-20 13:26:07,533 INFO L140 encePairwiseOnDemand]: 273/297 looper letters, 54 selfloop transitions, 5 changer transitions 0/303 dead transitions. [2024-11-20 13:26:07,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 303 transitions, 836 flow [2024-11-20 13:26:07,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:26:07,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:26:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1640 transitions. [2024-11-20 13:26:07,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.920314253647587 [2024-11-20 13:26:07,550 INFO L175 Difference]: Start difference. First operand has 281 places, 297 transitions, 622 flow. Second operand 6 states and 1640 transitions. [2024-11-20 13:26:07,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 303 transitions, 836 flow [2024-11-20 13:26:07,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 303 transitions, 806 flow, removed 15 selfloop flow, removed 0 redundant places. [2024-11-20 13:26:07,562 INFO L231 Difference]: Finished difference. Result has 273 places, 267 transitions, 566 flow [2024-11-20 13:26:07,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=566, PETRI_PLACES=273, PETRI_TRANSITIONS=267} [2024-11-20 13:26:07,567 INFO L277 CegarLoopForPetriNet]: 281 programPoint places, -8 predicate places. [2024-11-20 13:26:07,567 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 267 transitions, 566 flow [2024-11-20 13:26:07,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 252.66666666666666) internal successors, (1516), 6 states have internal predecessors, (1516), 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) [2024-11-20 13:26:07,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:07,568 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:07,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:26:07,569 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-20 13:26:07,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:07,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1343775760, now seen corresponding path program 1 times [2024-11-20 13:26:07,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:07,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232681603] [2024-11-20 13:26:07,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:07,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:07,582 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:26:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:26:07,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:26:07,599 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:26:07,599 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-20 13:26:07,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-20 13:26:07,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-20 13:26:07,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-20 13:26:07,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-20 13:26:07,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-20 13:26:07,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2024-11-20 13:26:07,600 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-20 13:26:07,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-20 13:26:07,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-20 13:26:07,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-20 13:26:07,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-20 13:26:07,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-20 13:26:07,601 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-20 13:26:07,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-20 13:26:07,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-20 13:26:07,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-20 13:26:07,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-20 13:26:07,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-20 13:26:07,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-20 13:26:07,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-20 13:26:07,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:26:07,603 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-20 13:26:07,604 WARN L244 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 13:26:07,604 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2024-11-20 13:26:07,656 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:26:07,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 342 places, 362 transitions, 764 flow [2024-11-20 13:26:07,720 INFO L124 PetriNetUnfolderBase]: 36/415 cut-off events. [2024-11-20 13:26:07,720 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-20 13:26:07,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 415 events. 36/415 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1416 event pairs, 0 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 352. Up to 12 conditions per place. [2024-11-20 13:26:07,727 INFO L82 GeneralOperation]: Start removeDead. Operand has 342 places, 362 transitions, 764 flow [2024-11-20 13:26:07,730 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 342 places, 362 transitions, 764 flow [2024-11-20 13:26:07,732 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:26:07,732 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;@604a936a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:26:07,732 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-20 13:26:07,743 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:26:07,744 INFO L124 PetriNetUnfolderBase]: 9/136 cut-off events. [2024-11-20 13:26:07,744 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-20 13:26:07,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:07,744 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:07,744 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-20 13:26:07,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:07,745 INFO L85 PathProgramCache]: Analyzing trace with hash 571436834, now seen corresponding path program 1 times [2024-11-20 13:26:07,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:07,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989926343] [2024-11-20 13:26:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:07,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:08,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:08,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:08,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989926343] [2024-11-20 13:26:08,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989926343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:08,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:08,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:26:08,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822718893] [2024-11-20 13:26:08,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:08,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:26:08,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:08,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:26:08,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:26:08,363 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 362 [2024-11-20 13:26:08,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 362 transitions, 764 flow. Second operand has 6 states, 6 states have (on average 309.6666666666667) internal successors, (1858), 6 states have internal predecessors, (1858), 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) [2024-11-20 13:26:08,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:08,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 362 [2024-11-20 13:26:08,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:26:12,866 INFO L124 PetriNetUnfolderBase]: 4694/23547 cut-off events. [2024-11-20 13:26:12,867 INFO L125 PetriNetUnfolderBase]: For 8329/8329 co-relation queries the response was YES. [2024-11-20 13:26:13,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32108 conditions, 23547 events. 4694/23547 cut-off events. For 8329/8329 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 303213 event pairs, 1824 based on Foata normal form. 9019/29692 useless extension candidates. Maximal degree in co-relation 9664. Up to 2552 conditions per place. [2024-11-20 13:26:13,316 INFO L140 encePairwiseOnDemand]: 334/362 looper letters, 69 selfloop transitions, 5 changer transitions 0/374 dead transitions. [2024-11-20 13:26:13,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 374 transitions, 1064 flow [2024-11-20 13:26:13,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:26:13,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:26:13,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2017 transitions. [2024-11-20 13:26:13,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9286372007366482 [2024-11-20 13:26:13,320 INFO L175 Difference]: Start difference. First operand has 342 places, 362 transitions, 764 flow. Second operand 6 states and 2017 transitions. [2024-11-20 13:26:13,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 374 transitions, 1064 flow [2024-11-20 13:26:13,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 374 transitions, 1004 flow, removed 30 selfloop flow, removed 0 redundant places. [2024-11-20 13:26:13,333 INFO L231 Difference]: Finished difference. Result has 332 places, 326 transitions, 690 flow [2024-11-20 13:26:13,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=690, PETRI_PLACES=332, PETRI_TRANSITIONS=326} [2024-11-20 13:26:13,335 INFO L277 CegarLoopForPetriNet]: 342 programPoint places, -10 predicate places. [2024-11-20 13:26:13,335 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 326 transitions, 690 flow [2024-11-20 13:26:13,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 309.6666666666667) internal successors, (1858), 6 states have internal predecessors, (1858), 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) [2024-11-20 13:26:13,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:26:13,337 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:26:13,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:26:13,337 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2024-11-20 13:26:13,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:26:13,337 INFO L85 PathProgramCache]: Analyzing trace with hash -827579930, now seen corresponding path program 1 times [2024-11-20 13:26:13,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:26:13,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926079997] [2024-11-20 13:26:13,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:26:13,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:26:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:26:13,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:26:13,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:26:13,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926079997] [2024-11-20 13:26:13,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926079997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:26:13,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:26:13,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:26:13,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544354079] [2024-11-20 13:26:13,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:26:13,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:26:13,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:26:13,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:26:13,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:26:13,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 362 [2024-11-20 13:26:13,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 326 transitions, 690 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 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) [2024-11-20 13:26:13,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:26:13,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 362 [2024-11-20 13:26:13,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand