./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/ldv-races/race-1_2b-join.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/ldv-races/race-1_2b-join.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 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:45:55,179 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:45:55,236 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:45:55,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:45:55,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:45:55,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:45:55,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:45:55,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:45:55,263 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:45:55,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:45:55,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:45:55,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:45:55,266 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:45:55,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:45:55,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:45:55,267 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:45:55,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:45:55,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:45:55,267 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:45:55,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:45:55,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:45:55,270 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:45:55,270 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:45:55,270 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:45:55,270 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:45:55,270 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:45:55,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:45:55,271 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:45:55,271 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:45:55,271 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:45:55,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:45:55,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:45:55,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:45:55,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:45:55,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:45:55,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:45:55,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:45:55,272 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:45:55,272 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:45:55,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:45:55,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:45:55,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 [2024-11-09 06:45:55,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:45:55,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:45:55,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:45:55,492 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:45:55,492 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:45:55,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_2b-join.i [2024-11-09 06:45:56,776 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:45:57,059 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:45:57,059 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_2b-join.i [2024-11-09 06:45:57,079 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45fe76e10/4e960fbfc433426eae5125da370a82b1/FLAGdb2ffbae6 [2024-11-09 06:45:57,093 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45fe76e10/4e960fbfc433426eae5125da370a82b1 [2024-11-09 06:45:57,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:45:57,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:45:57,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:45:57,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:45:57,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:45:57,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713fee4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57, skipping insertion in model container [2024-11-09 06:45:57,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,152 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:45:57,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:45:57,723 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:45:57,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:45:57,844 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:45:57,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57 WrapperNode [2024-11-09 06:45:57,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:45:57,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:45:57,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:45:57,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:45:57,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,908 INFO L138 Inliner]: procedures = 481, calls = 25, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 119 [2024-11-09 06:45:57,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:45:57,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:45:57,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:45:57,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:45:57,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,930 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,937 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:45:57,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:45:57,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:45:57,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:45:57,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57" (1/1) ... [2024-11-09 06:45:57,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:45:57,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:45:57,972 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 06:45:57,976 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 06:45:58,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:45:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 06:45:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:45:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:45:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:45:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:45:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:45:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 06:45:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 06:45:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 06:45:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:45:58,009 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 06:45:58,224 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:45:58,225 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:45:58,382 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:45:58,383 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:45:58,400 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:45:58,400 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:45:58,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:45:58 BoogieIcfgContainer [2024-11-09 06:45:58,401 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:45:58,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:45:58,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:45:58,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:45:58,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:45:57" (1/3) ... [2024-11-09 06:45:58,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba25783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:45:58, skipping insertion in model container [2024-11-09 06:45:58,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:45:57" (2/3) ... [2024-11-09 06:45:58,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba25783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:45:58, skipping insertion in model container [2024-11-09 06:45:58,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:45:58" (3/3) ... [2024-11-09 06:45:58,422 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2024-11-09 06:45:58,435 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:45:58,436 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2024-11-09 06:45:58,436 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:45:58,477 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 06:45:58,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 163 transitions, 333 flow [2024-11-09 06:45:58,556 INFO L124 PetriNetUnfolderBase]: 9/178 cut-off events. [2024-11-09 06:45:58,556 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:45:58,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 178 events. 9/178 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 94. Up to 3 conditions per place. [2024-11-09 06:45:58,560 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 163 transitions, 333 flow [2024-11-09 06:45:58,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 145 transitions, 296 flow [2024-11-09 06:45:58,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:45:58,580 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;@7556d359, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:45:58,580 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-09 06:45:58,589 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:45:58,590 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-11-09 06:45:58,590 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:45:58,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:45:58,590 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] [2024-11-09 06:45:58,591 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 06:45:58,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash -540774703, now seen corresponding path program 1 times [2024-11-09 06:45:58,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:45:58,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30859406] [2024-11-09 06:45:58,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:58,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:45:58,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:45:58,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30859406] [2024-11-09 06:45:58,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30859406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:58,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:58,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:45:58,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108480375] [2024-11-09 06:45:58,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:58,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:45:58,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:45:59,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:45:59,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:59,098 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 163 [2024-11-09 06:45:59,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 145 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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 06:45:59,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:45:59,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 163 [2024-11-09 06:45:59,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:45:59,158 INFO L124 PetriNetUnfolderBase]: 9/193 cut-off events. [2024-11-09 06:45:59,158 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-09 06:45:59,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 193 events. 9/193 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 500 event pairs, 9 based on Foata normal form. 8/177 useless extension candidates. Maximal degree in co-relation 120. Up to 36 conditions per place. [2024-11-09 06:45:59,164 INFO L140 encePairwiseOnDemand]: 154/163 looper letters, 16 selfloop transitions, 2 changer transitions 6/132 dead transitions. [2024-11-09 06:45:59,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 132 transitions, 306 flow [2024-11-09 06:45:59,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:45:59,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:45:59,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 421 transitions. [2024-11-09 06:45:59,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8609406952965235 [2024-11-09 06:45:59,180 INFO L175 Difference]: Start difference. First operand has 142 places, 145 transitions, 296 flow. Second operand 3 states and 421 transitions. [2024-11-09 06:45:59,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 132 transitions, 306 flow [2024-11-09 06:45:59,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 132 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:45:59,190 INFO L231 Difference]: Finished difference. Result has 135 places, 126 transitions, 258 flow [2024-11-09 06:45:59,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=135, PETRI_TRANSITIONS=126} [2024-11-09 06:45:59,196 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -7 predicate places. [2024-11-09 06:45:59,196 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 126 transitions, 258 flow [2024-11-09 06:45:59,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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 06:45:59,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:45:59,197 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] [2024-11-09 06:45:59,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:45:59,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 06:45:59,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:59,199 INFO L85 PathProgramCache]: Analyzing trace with hash 203498822, now seen corresponding path program 1 times [2024-11-09 06:45:59,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:45:59,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397728776] [2024-11-09 06:45:59,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:59,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:59,310 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 06:45:59,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:45:59,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397728776] [2024-11-09 06:45:59,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397728776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:59,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:59,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:45:59,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709059743] [2024-11-09 06:45:59,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:59,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:45:59,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:45:59,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:45:59,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:59,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 163 [2024-11-09 06:45:59,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 126 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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 06:45:59,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:45:59,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 163 [2024-11-09 06:45:59,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:45:59,421 INFO L124 PetriNetUnfolderBase]: 11/271 cut-off events. [2024-11-09 06:45:59,422 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2024-11-09 06:45:59,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 271 events. 11/271 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 932 event pairs, 3 based on Foata normal form. 2/244 useless extension candidates. Maximal degree in co-relation 289. Up to 22 conditions per place. [2024-11-09 06:45:59,427 INFO L140 encePairwiseOnDemand]: 150/163 looper letters, 15 selfloop transitions, 8 changer transitions 3/130 dead transitions. [2024-11-09 06:45:59,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 130 transitions, 315 flow [2024-11-09 06:45:59,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:45:59,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:45:59,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 418 transitions. [2024-11-09 06:45:59,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8548057259713702 [2024-11-09 06:45:59,430 INFO L175 Difference]: Start difference. First operand has 135 places, 126 transitions, 258 flow. Second operand 3 states and 418 transitions. [2024-11-09 06:45:59,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 130 transitions, 315 flow [2024-11-09 06:45:59,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 130 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:45:59,436 INFO L231 Difference]: Finished difference. Result has 128 places, 124 transitions, 292 flow [2024-11-09 06:45:59,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=128, PETRI_TRANSITIONS=124} [2024-11-09 06:45:59,437 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -14 predicate places. [2024-11-09 06:45:59,438 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 124 transitions, 292 flow [2024-11-09 06:45:59,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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 06:45:59,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:45:59,439 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] [2024-11-09 06:45:59,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:45:59,439 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 06:45:59,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:59,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1756400261, now seen corresponding path program 1 times [2024-11-09 06:45:59,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:45:59,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465162869] [2024-11-09 06:45:59,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:59,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:59,536 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 06:45:59,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:45:59,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465162869] [2024-11-09 06:45:59,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465162869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:59,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:59,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:45:59,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166605875] [2024-11-09 06:45:59,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:59,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:45:59,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:45:59,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:45:59,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:59,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 163 [2024-11-09 06:45:59,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 124 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 06:45:59,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:45:59,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 163 [2024-11-09 06:45:59,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:45:59,626 INFO L124 PetriNetUnfolderBase]: 12/241 cut-off events. [2024-11-09 06:45:59,627 INFO L125 PetriNetUnfolderBase]: For 40/41 co-relation queries the response was YES. [2024-11-09 06:45:59,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 241 events. 12/241 cut-off events. For 40/41 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 798 event pairs, 7 based on Foata normal form. 0/218 useless extension candidates. Maximal degree in co-relation 48. Up to 44 conditions per place. [2024-11-09 06:45:59,630 INFO L140 encePairwiseOnDemand]: 160/163 looper letters, 18 selfloop transitions, 2 changer transitions 0/123 dead transitions. [2024-11-09 06:45:59,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 123 transitions, 330 flow [2024-11-09 06:45:59,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:45:59,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:45:59,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2024-11-09 06:45:59,632 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8466257668711656 [2024-11-09 06:45:59,632 INFO L175 Difference]: Start difference. First operand has 128 places, 124 transitions, 292 flow. Second operand 3 states and 414 transitions. [2024-11-09 06:45:59,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 123 transitions, 330 flow [2024-11-09 06:45:59,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 123 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:45:59,640 INFO L231 Difference]: Finished difference. Result has 124 places, 123 transitions, 278 flow [2024-11-09 06:45:59,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=124, PETRI_TRANSITIONS=123} [2024-11-09 06:45:59,641 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -18 predicate places. [2024-11-09 06:45:59,645 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 123 transitions, 278 flow [2024-11-09 06:45:59,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 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 06:45:59,646 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:45:59,646 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] [2024-11-09 06:45:59,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:45:59,646 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 06:45:59,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:59,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1009850407, now seen corresponding path program 1 times [2024-11-09 06:45:59,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:45:59,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868561051] [2024-11-09 06:45:59,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:59,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:59,766 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 06:45:59,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:45:59,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868561051] [2024-11-09 06:45:59,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868561051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:59,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:59,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:45:59,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467551908] [2024-11-09 06:45:59,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:59,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:45:59,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:45:59,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:45:59,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:59,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 163 [2024-11-09 06:45:59,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 123 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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 06:45:59,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:45:59,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 163 [2024-11-09 06:45:59,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:45:59,825 INFO L124 PetriNetUnfolderBase]: 11/258 cut-off events. [2024-11-09 06:45:59,825 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 06:45:59,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 258 events. 11/258 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 858 event pairs, 4 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 282. Up to 31 conditions per place. [2024-11-09 06:45:59,828 INFO L140 encePairwiseOnDemand]: 160/163 looper letters, 11 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-11-09 06:45:59,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 124 transitions, 306 flow [2024-11-09 06:45:59,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:45:59,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:45:59,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 431 transitions. [2024-11-09 06:45:59,832 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8813905930470347 [2024-11-09 06:45:59,832 INFO L175 Difference]: Start difference. First operand has 124 places, 123 transitions, 278 flow. Second operand 3 states and 431 transitions. [2024-11-09 06:45:59,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 124 transitions, 306 flow [2024-11-09 06:45:59,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 124 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:45:59,836 INFO L231 Difference]: Finished difference. Result has 123 places, 122 transitions, 276 flow [2024-11-09 06:45:59,837 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=123, PETRI_TRANSITIONS=122} [2024-11-09 06:45:59,837 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -19 predicate places. [2024-11-09 06:45:59,837 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 122 transitions, 276 flow [2024-11-09 06:45:59,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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 06:45:59,838 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:45:59,838 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] [2024-11-09 06:45:59,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:45:59,838 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 06:45:59,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:59,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1895426691, now seen corresponding path program 1 times [2024-11-09 06:45:59,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:45:59,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319170093] [2024-11-09 06:45:59,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:59,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:45:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:59,914 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 06:45:59,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:45:59,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319170093] [2024-11-09 06:45:59,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319170093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:59,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:59,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:45:59,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064940074] [2024-11-09 06:45:59,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:59,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:45:59,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:45:59,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:45:59,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:59,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 163 [2024-11-09 06:45:59,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 122 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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 06:45:59,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:45:59,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 163 [2024-11-09 06:45:59,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:45:59,994 INFO L124 PetriNetUnfolderBase]: 24/304 cut-off events. [2024-11-09 06:45:59,994 INFO L125 PetriNetUnfolderBase]: For 17/21 co-relation queries the response was YES. [2024-11-09 06:45:59,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 304 events. 24/304 cut-off events. For 17/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1259 event pairs, 11 based on Foata normal form. 2/275 useless extension candidates. Maximal degree in co-relation 315. Up to 59 conditions per place. [2024-11-09 06:45:59,997 INFO L140 encePairwiseOnDemand]: 158/163 looper letters, 21 selfloop transitions, 5 changer transitions 0/127 dead transitions. [2024-11-09 06:45:59,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 127 transitions, 340 flow [2024-11-09 06:45:59,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:45:59,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:45:59,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 420 transitions. [2024-11-09 06:45:59,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8588957055214724 [2024-11-09 06:45:59,999 INFO L175 Difference]: Start difference. First operand has 123 places, 122 transitions, 276 flow. Second operand 3 states and 420 transitions. [2024-11-09 06:45:59,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 127 transitions, 340 flow [2024-11-09 06:46:00,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 127 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:46:00,003 INFO L231 Difference]: Finished difference. Result has 125 places, 125 transitions, 308 flow [2024-11-09 06:46:00,004 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=125, PETRI_TRANSITIONS=125} [2024-11-09 06:46:00,005 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -17 predicate places. [2024-11-09 06:46:00,006 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 125 transitions, 308 flow [2024-11-09 06:46:00,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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 06:46:00,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:46:00,007 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] [2024-11-09 06:46:00,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:46:00,007 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 06:46:00,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:00,008 INFO L85 PathProgramCache]: Analyzing trace with hash -99662353, now seen corresponding path program 1 times [2024-11-09 06:46:00,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:46:00,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342697379] [2024-11-09 06:46:00,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:00,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:00,084 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 06:46:00,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:46:00,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342697379] [2024-11-09 06:46:00,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342697379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:46:00,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:46:00,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:46:00,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527244951] [2024-11-09 06:46:00,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:46:00,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:46:00,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:46:00,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:46:00,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:46:00,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 163 [2024-11-09 06:46:00,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 125 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 06:46:00,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:46:00,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 163 [2024-11-09 06:46:00,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:46:00,173 INFO L124 PetriNetUnfolderBase]: 20/332 cut-off events. [2024-11-09 06:46:00,174 INFO L125 PetriNetUnfolderBase]: For 65/75 co-relation queries the response was YES. [2024-11-09 06:46:00,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 332 events. 20/332 cut-off events. For 65/75 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1485 event pairs, 5 based on Foata normal form. 2/307 useless extension candidates. Maximal degree in co-relation 247. Up to 57 conditions per place. [2024-11-09 06:46:00,175 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 17 selfloop transitions, 7 changer transitions 0/129 dead transitions. [2024-11-09 06:46:00,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 129 transitions, 372 flow [2024-11-09 06:46:00,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:46:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:46:00,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2024-11-09 06:46:00,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8650306748466258 [2024-11-09 06:46:00,177 INFO L175 Difference]: Start difference. First operand has 125 places, 125 transitions, 308 flow. Second operand 3 states and 423 transitions. [2024-11-09 06:46:00,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 129 transitions, 372 flow [2024-11-09 06:46:00,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 129 transitions, 358 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-09 06:46:00,182 INFO L231 Difference]: Finished difference. Result has 127 places, 129 transitions, 348 flow [2024-11-09 06:46:00,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=127, PETRI_TRANSITIONS=129} [2024-11-09 06:46:00,183 INFO L277 CegarLoopForPetriNet]: 142 programPoint places, -15 predicate places. [2024-11-09 06:46:00,183 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 129 transitions, 348 flow [2024-11-09 06:46:00,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 06:46:00,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:46:00,184 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] [2024-11-09 06:46:00,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:46:00,184 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2024-11-09 06:46:00,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:00,185 INFO L85 PathProgramCache]: Analyzing trace with hash -447801414, now seen corresponding path program 1 times [2024-11-09 06:46:00,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:46:00,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733076801] [2024-11-09 06:46:00,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:00,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:46:00,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:46:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:46:00,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:46:00,240 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:46:00,241 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2024-11-09 06:46:00,242 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-09 06:46:00,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-09 06:46:00,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-09 06:46:00,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-09 06:46:00,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-09 06:46:00,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2024-11-09 06:46:00,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-09 06:46:00,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-09 06:46:00,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-09 06:46:00,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-09 06:46:00,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2024-11-09 06:46:00,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-09 06:46:00,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:46:00,246 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:00,283 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 06:46:00,284 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:46:00,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:46:00 BasicIcfg [2024-11-09 06:46:00,289 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:46:00,289 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:46:00,289 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:46:00,289 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:46:00,290 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:45:58" (3/4) ... [2024-11-09 06:46:00,290 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 06:46:00,338 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 06:46:00,338 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:46:00,339 INFO L158 Benchmark]: Toolchain (without parser) took 3240.96ms. Allocated memory was 163.6MB in the beginning and 199.2MB in the end (delta: 35.7MB). Free memory was 133.1MB in the beginning and 138.1MB in the end (delta: -5.0MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-11-09 06:46:00,339 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:46:00,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 746.15ms. Allocated memory is still 163.6MB. Free memory was 133.1MB in the beginning and 73.4MB in the end (delta: 59.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-09 06:46:00,339 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.13ms. Allocated memory is still 163.6MB. Free memory was 73.4MB in the beginning and 70.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:46:00,341 INFO L158 Benchmark]: Boogie Preprocessor took 27.93ms. Allocated memory is still 163.6MB. Free memory was 70.2MB in the beginning and 67.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:46:00,341 INFO L158 Benchmark]: RCFGBuilder took 462.99ms. Allocated memory is still 163.6MB. Free memory was 67.1MB in the beginning and 44.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 06:46:00,341 INFO L158 Benchmark]: TraceAbstraction took 1872.51ms. Allocated memory was 163.6MB in the beginning and 199.2MB in the end (delta: 35.7MB). Free memory was 129.1MB in the beginning and 142.3MB in the end (delta: -13.2MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2024-11-09 06:46:00,341 INFO L158 Benchmark]: Witness Printer took 49.02ms. Allocated memory is still 199.2MB. Free memory was 142.3MB in the beginning and 138.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:46:00,342 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 746.15ms. Allocated memory is still 163.6MB. Free memory was 133.1MB in the beginning and 73.4MB in the end (delta: 59.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.13ms. Allocated memory is still 163.6MB. Free memory was 73.4MB in the beginning and 70.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.93ms. Allocated memory is still 163.6MB. Free memory was 70.2MB in the beginning and 67.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 462.99ms. Allocated memory is still 163.6MB. Free memory was 67.1MB in the beginning and 44.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1872.51ms. Allocated memory was 163.6MB in the beginning and 199.2MB in the end (delta: 35.7MB). Free memory was 129.1MB in the beginning and 142.3MB in the end (delta: -13.2MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * Witness Printer took 49.02ms. Allocated memory is still 199.2MB. Free memory was 142.3MB in the beginning and 138.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1709]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; VAL [t1=0] [L1695] 0 pthread_mutex_t mutex; VAL [mutex={3:0}, t1=0] [L1696] 0 int pdev; VAL [mutex={3:0}, pdev=0, t1=0] [L1726] CALL 0 module_init() [L1705] 0 pdev = 1 VAL [mutex={3:0}, pdev=1, t1=0] [L1706] EXPR 0 pdev==1 [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, mutex={3:0}, pdev=1, t1=0] [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={3:0}, pdev=1, t1=0] [L1708] 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [mutex={3:0}, pdev=1, t1=-1] [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [\old(arg)={0:0}, mutex={3:0}, pdev=1, t1=-1] [L1709] 0 pdev = 2 VAL [\old(arg)={0:0}, mutex={3:0}, pdev=2, t1=-1] [L1699] 1 pdev = 6 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] [L1709] 0 pdev = 2 VAL [\old(arg)={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1=-1] Now there is a data race on ~pdev~0 between C: pdev = 6 [1699] and C: pdev = 2 [1709] - UnprovableResult [Line: 1699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 169 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 315 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 95 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 290 IncrementalHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 17 mSDtfsCounter, 290 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=6, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 231 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-09 06:46:00,367 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE