./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/goblint-regression/02-base_25-malloc_race_cp.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 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/goblint-regression/02-base_25-malloc_race_cp.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 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:22:04,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:22:04,483 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:22:04,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:22:04,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:22:04,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:22:04,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:22:04,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:22:04,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:22:04,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:22:04,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:22:04,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:22:04,522 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:22:04,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:22:04,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:22:04,525 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:22:04,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:22:04,525 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:22:04,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:22:04,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:22:04,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:22:04,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:22:04,526 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:22:04,526 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:22:04,527 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:22:04,527 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:22:04,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:22:04,527 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:22:04,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:22:04,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:22:04,528 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:22:04,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:22:04,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:22:04,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:22:04,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:22:04,528 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:22:04,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:22:04,529 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:22:04,529 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:22:04,529 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:22:04,529 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:22:04,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed [2024-10-24 15:22:04,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:22:04,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:22:04,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:22:04,777 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:22:04,777 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:22:04,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2024-10-24 15:22:06,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:22:06,356 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:22:06,357 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2024-10-24 15:22:06,378 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e8879803/a58b515bfc6f46ddb9594d205570705e/FLAG5f4c68390 [2024-10-24 15:22:06,394 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e8879803/a58b515bfc6f46ddb9594d205570705e [2024-10-24 15:22:06,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:22:06,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:22:06,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:22:06,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:22:06,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:22:06,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:06,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2f1163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06, skipping insertion in model container [2024-10-24 15:22:06,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:06,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:22:06,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:22:06,848 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:22:06,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:22:06,936 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:22:06,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06 WrapperNode [2024-10-24 15:22:06,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:22:06,938 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:22:06,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:22:06,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:22:06,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:06,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:06,980 INFO L138 Inliner]: procedures = 365, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2024-10-24 15:22:06,980 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:22:06,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:22:06,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:22:06,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:22:06,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:06,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:06,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:06,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:06,998 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:06,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:07,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:07,001 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:07,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:22:07,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:22:07,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:22:07,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:22:07,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06" (1/1) ... [2024-10-24 15:22:07,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:22:07,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:22:07,038 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) [2024-10-24 15:22:07,040 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 [2024-10-24 15:22:07,073 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:22:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:22:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:22:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:22:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:22:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:22:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-24 15:22:07,074 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-24 15:22:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:22:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:22:07,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:22:07,076 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:22:07,179 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:22:07,181 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:22:07,385 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:22:07,385 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:22:07,437 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:22:07,437 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:22:07,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:22:07 BoogieIcfgContainer [2024-10-24 15:22:07,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:22:07,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:22:07,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:22:07,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:22:07,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:22:06" (1/3) ... [2024-10-24 15:22:07,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7728648a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:22:07, skipping insertion in model container [2024-10-24 15:22:07,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:22:06" (2/3) ... [2024-10-24 15:22:07,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7728648a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:22:07, skipping insertion in model container [2024-10-24 15:22:07,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:22:07" (3/3) ... [2024-10-24 15:22:07,447 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_25-malloc_race_cp.i [2024-10-24 15:22:07,460 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:22:07,461 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-24 15:22:07,462 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:22:07,497 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:22:07,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 104 transitions, 212 flow [2024-10-24 15:22:07,570 INFO L124 PetriNetUnfolderBase]: 0/103 cut-off events. [2024-10-24 15:22:07,571 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:22:07,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 103 events. 0/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 77 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-24 15:22:07,575 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 104 transitions, 212 flow [2024-10-24 15:22:07,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 103 transitions, 209 flow [2024-10-24 15:22:07,588 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:22:07,594 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;@11a2b0c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:22:07,595 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-10-24 15:22:07,601 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:22:07,602 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-10-24 15:22:07,602 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:22:07,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:07,603 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] [2024-10-24 15:22:07,604 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:07,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:07,612 INFO L85 PathProgramCache]: Analyzing trace with hash -2046640981, now seen corresponding path program 1 times [2024-10-24 15:22:07,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:07,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756771502] [2024-10-24 15:22:07,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:07,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:07,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:07,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756771502] [2024-10-24 15:22:07,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756771502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:07,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:07,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:22:07,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814810939] [2024-10-24 15:22:07,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:07,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:07,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:07,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:07,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:07,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 104 [2024-10-24 15:22:07,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 103 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2024-10-24 15:22:07,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:07,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 104 [2024-10-24 15:22:07,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:07,977 INFO L124 PetriNetUnfolderBase]: 12/234 cut-off events. [2024-10-24 15:22:07,977 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:22:07,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 234 events. 12/234 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 664 event pairs, 12 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 227. Up to 36 conditions per place. [2024-10-24 15:22:07,981 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 11 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2024-10-24 15:22:07,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 102 transitions, 233 flow [2024-10-24 15:22:07,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:07,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-10-24 15:22:07,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9102564102564102 [2024-10-24 15:22:07,994 INFO L175 Difference]: Start difference. First operand has 107 places, 103 transitions, 209 flow. Second operand 3 states and 284 transitions. [2024-10-24 15:22:07,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 102 transitions, 233 flow [2024-10-24 15:22:07,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 102 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:22:08,001 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 210 flow [2024-10-24 15:22:08,003 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2024-10-24 15:22:08,007 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 0 predicate places. [2024-10-24 15:22:08,007 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 210 flow [2024-10-24 15:22:08,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2024-10-24 15:22:08,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:08,008 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] [2024-10-24 15:22:08,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:22:08,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:08,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:08,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1419190674, now seen corresponding path program 1 times [2024-10-24 15:22:08,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:08,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781763732] [2024-10-24 15:22:08,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:08,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:08,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:08,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:08,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781763732] [2024-10-24 15:22:08,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781763732] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:08,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:08,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:22:08,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827661623] [2024-10-24 15:22:08,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:08,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:08,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:08,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:08,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:08,106 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 104 [2024-10-24 15:22:08,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2024-10-24 15:22:08,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:08,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 104 [2024-10-24 15:22:08,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:08,165 INFO L124 PetriNetUnfolderBase]: 9/200 cut-off events. [2024-10-24 15:22:08,166 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:22:08,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 200 events. 9/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 514 event pairs, 9 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 210. Up to 30 conditions per place. [2024-10-24 15:22:08,171 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 11 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2024-10-24 15:22:08,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 101 transitions, 234 flow [2024-10-24 15:22:08,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:08,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:08,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2024-10-24 15:22:08,174 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9102564102564102 [2024-10-24 15:22:08,174 INFO L175 Difference]: Start difference. First operand has 107 places, 102 transitions, 210 flow. Second operand 3 states and 284 transitions. [2024-10-24 15:22:08,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 101 transitions, 234 flow [2024-10-24 15:22:08,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 101 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:22:08,176 INFO L231 Difference]: Finished difference. Result has 106 places, 101 transitions, 208 flow [2024-10-24 15:22:08,176 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2024-10-24 15:22:08,177 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, -1 predicate places. [2024-10-24 15:22:08,177 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 208 flow [2024-10-24 15:22:08,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 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) [2024-10-24 15:22:08,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:08,178 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] [2024-10-24 15:22:08,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:22:08,178 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:08,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:08,179 INFO L85 PathProgramCache]: Analyzing trace with hash 177711188, now seen corresponding path program 1 times [2024-10-24 15:22:08,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:08,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573871524] [2024-10-24 15:22:08,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:08,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:08,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:08,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:08,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573871524] [2024-10-24 15:22:08,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573871524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:08,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:08,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:22:08,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443913114] [2024-10-24 15:22:08,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:08,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:08,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:08,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:08,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:08,270 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 104 [2024-10-24 15:22:08,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2024-10-24 15:22:08,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:08,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 104 [2024-10-24 15:22:08,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:08,302 INFO L124 PetriNetUnfolderBase]: 8/165 cut-off events. [2024-10-24 15:22:08,303 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 15:22:08,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 165 events. 8/165 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 400 event pairs, 8 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 163. Up to 25 conditions per place. [2024-10-24 15:22:08,306 INFO L140 encePairwiseOnDemand]: 101/104 looper letters, 9 selfloop transitions, 1 changer transitions 0/99 dead transitions. [2024-10-24 15:22:08,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 99 transitions, 224 flow [2024-10-24 15:22:08,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:08,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:08,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2024-10-24 15:22:08,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2024-10-24 15:22:08,310 INFO L175 Difference]: Start difference. First operand has 106 places, 101 transitions, 208 flow. Second operand 3 states and 288 transitions. [2024-10-24 15:22:08,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 99 transitions, 224 flow [2024-10-24 15:22:08,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 99 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 15:22:08,313 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 202 flow [2024-10-24 15:22:08,314 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2024-10-24 15:22:08,315 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, -3 predicate places. [2024-10-24 15:22:08,315 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 202 flow [2024-10-24 15:22:08,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2024-10-24 15:22:08,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:08,316 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] [2024-10-24 15:22:08,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:22:08,317 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:08,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:08,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1291684622, now seen corresponding path program 1 times [2024-10-24 15:22:08,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:08,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811047344] [2024-10-24 15:22:08,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:08,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:08,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:08,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:08,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811047344] [2024-10-24 15:22:08,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811047344] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:08,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:08,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:22:08,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124588675] [2024-10-24 15:22:08,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:08,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:08,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:08,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:08,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:08,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 104 [2024-10-24 15:22:08,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2024-10-24 15:22:08,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:08,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 104 [2024-10-24 15:22:08,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:08,440 INFO L124 PetriNetUnfolderBase]: 16/249 cut-off events. [2024-10-24 15:22:08,440 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:22:08,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 249 events. 16/249 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 822 event pairs, 7 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 262. Up to 36 conditions per place. [2024-10-24 15:22:08,444 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 12 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2024-10-24 15:22:08,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 101 transitions, 234 flow [2024-10-24 15:22:08,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:08,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:08,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2024-10-24 15:22:08,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9358974358974359 [2024-10-24 15:22:08,446 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 202 flow. Second operand 3 states and 292 transitions. [2024-10-24 15:22:08,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 101 transitions, 234 flow [2024-10-24 15:22:08,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 101 transitions, 233 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:22:08,449 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 211 flow [2024-10-24 15:22:08,450 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2024-10-24 15:22:08,451 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, -3 predicate places. [2024-10-24 15:22:08,451 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 211 flow [2024-10-24 15:22:08,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2024-10-24 15:22:08,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:08,452 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] [2024-10-24 15:22:08,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:22:08,452 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:08,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:08,453 INFO L85 PathProgramCache]: Analyzing trace with hash 70069530, now seen corresponding path program 1 times [2024-10-24 15:22:08,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:08,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876541567] [2024-10-24 15:22:08,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:08,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:08,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:08,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:08,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876541567] [2024-10-24 15:22:08,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876541567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:08,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:08,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:22:08,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740925856] [2024-10-24 15:22:08,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:08,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:22:08,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:08,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:22:08,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:22:08,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 104 [2024-10-24 15:22:08,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 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) [2024-10-24 15:22:08,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:08,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 104 [2024-10-24 15:22:08,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:09,155 INFO L124 PetriNetUnfolderBase]: 231/839 cut-off events. [2024-10-24 15:22:09,156 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:22:09,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1357 conditions, 839 events. 231/839 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4771 event pairs, 96 based on Foata normal form. 0/785 useless extension candidates. Maximal degree in co-relation 1321. Up to 348 conditions per place. [2024-10-24 15:22:09,160 INFO L140 encePairwiseOnDemand]: 88/104 looper letters, 51 selfloop transitions, 41 changer transitions 0/163 dead transitions. [2024-10-24 15:22:09,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 163 transitions, 523 flow [2024-10-24 15:22:09,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:22:09,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:22:09,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 549 transitions. [2024-10-24 15:22:09,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8798076923076923 [2024-10-24 15:22:09,164 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 211 flow. Second operand 6 states and 549 transitions. [2024-10-24 15:22:09,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 163 transitions, 523 flow [2024-10-24 15:22:09,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 163 transitions, 523 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:22:09,168 INFO L231 Difference]: Finished difference. Result has 113 places, 141 transitions, 469 flow [2024-10-24 15:22:09,168 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=469, PETRI_PLACES=113, PETRI_TRANSITIONS=141} [2024-10-24 15:22:09,170 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 6 predicate places. [2024-10-24 15:22:09,170 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 141 transitions, 469 flow [2024-10-24 15:22:09,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.66666666666667) internal successors, (466), 6 states have internal predecessors, (466), 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) [2024-10-24 15:22:09,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:09,171 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] [2024-10-24 15:22:09,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 15:22:09,171 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:09,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:09,172 INFO L85 PathProgramCache]: Analyzing trace with hash 87245971, now seen corresponding path program 1 times [2024-10-24 15:22:09,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:09,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37914677] [2024-10-24 15:22:09,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:09,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:09,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:09,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:09,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37914677] [2024-10-24 15:22:09,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37914677] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:09,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:09,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:22:09,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036627685] [2024-10-24 15:22:09,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:09,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:22:09,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:09,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:22:09,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:22:09,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 104 [2024-10-24 15:22:09,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 141 transitions, 469 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 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) [2024-10-24 15:22:09,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:09,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 104 [2024-10-24 15:22:09,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:09,709 INFO L124 PetriNetUnfolderBase]: 285/1134 cut-off events. [2024-10-24 15:22:09,709 INFO L125 PetriNetUnfolderBase]: For 318/367 co-relation queries the response was YES. [2024-10-24 15:22:09,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2402 conditions, 1134 events. 285/1134 cut-off events. For 318/367 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7589 event pairs, 29 based on Foata normal form. 31/1130 useless extension candidates. Maximal degree in co-relation 2361. Up to 272 conditions per place. [2024-10-24 15:22:09,715 INFO L140 encePairwiseOnDemand]: 89/104 looper letters, 71 selfloop transitions, 48 changer transitions 0/216 dead transitions. [2024-10-24 15:22:09,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 216 transitions, 971 flow [2024-10-24 15:22:09,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:22:09,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:22:09,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 579 transitions. [2024-10-24 15:22:09,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9278846153846154 [2024-10-24 15:22:09,717 INFO L175 Difference]: Start difference. First operand has 113 places, 141 transitions, 469 flow. Second operand 6 states and 579 transitions. [2024-10-24 15:22:09,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 216 transitions, 971 flow [2024-10-24 15:22:09,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 216 transitions, 971 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:22:09,725 INFO L231 Difference]: Finished difference. Result has 123 places, 187 transitions, 875 flow [2024-10-24 15:22:09,725 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=875, PETRI_PLACES=123, PETRI_TRANSITIONS=187} [2024-10-24 15:22:09,727 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 16 predicate places. [2024-10-24 15:22:09,727 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 187 transitions, 875 flow [2024-10-24 15:22:09,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 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) [2024-10-24 15:22:09,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:09,728 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] [2024-10-24 15:22:09,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 15:22:09,729 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:09,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:09,729 INFO L85 PathProgramCache]: Analyzing trace with hash -587936594, now seen corresponding path program 1 times [2024-10-24 15:22:09,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:09,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049814984] [2024-10-24 15:22:09,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:09,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:09,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:09,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049814984] [2024-10-24 15:22:09,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049814984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:09,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:09,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:22:09,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697213311] [2024-10-24 15:22:09,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:09,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:22:09,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:09,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:22:09,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:22:09,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 104 [2024-10-24 15:22:09,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 187 transitions, 875 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2024-10-24 15:22:09,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:09,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 104 [2024-10-24 15:22:09,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:09,831 INFO L124 PetriNetUnfolderBase]: 39/286 cut-off events. [2024-10-24 15:22:09,831 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-10-24 15:22:09,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 286 events. 39/286 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 967 event pairs, 4 based on Foata normal form. 2/275 useless extension candidates. Maximal degree in co-relation 499. Up to 64 conditions per place. [2024-10-24 15:22:09,833 INFO L140 encePairwiseOnDemand]: 100/104 looper letters, 2 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2024-10-24 15:22:09,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 120 transitions, 413 flow [2024-10-24 15:22:09,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:22:09,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:22:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 302 transitions. [2024-10-24 15:22:09,835 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.967948717948718 [2024-10-24 15:22:09,835 INFO L175 Difference]: Start difference. First operand has 123 places, 187 transitions, 875 flow. Second operand 3 states and 302 transitions. [2024-10-24 15:22:09,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 120 transitions, 413 flow [2024-10-24 15:22:09,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 120 transitions, 363 flow, removed 17 selfloop flow, removed 8 redundant places. [2024-10-24 15:22:09,842 INFO L231 Difference]: Finished difference. Result has 116 places, 120 transitions, 359 flow [2024-10-24 15:22:09,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=116, PETRI_TRANSITIONS=120} [2024-10-24 15:22:09,844 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 9 predicate places. [2024-10-24 15:22:09,844 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 120 transitions, 359 flow [2024-10-24 15:22:09,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2024-10-24 15:22:09,844 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:09,845 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] [2024-10-24 15:22:09,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 15:22:09,845 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:09,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:09,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1489826976, now seen corresponding path program 1 times [2024-10-24 15:22:09,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:09,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051843476] [2024-10-24 15:22:09,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:09,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:10,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:10,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051843476] [2024-10-24 15:22:10,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051843476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:10,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:10,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:22:10,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458784267] [2024-10-24 15:22:10,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:10,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:22:10,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:10,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:22:10,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:22:10,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 104 [2024-10-24 15:22:10,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 120 transitions, 359 flow. Second operand has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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) [2024-10-24 15:22:10,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:10,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 104 [2024-10-24 15:22:10,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:10,271 INFO L124 PetriNetUnfolderBase]: 93/482 cut-off events. [2024-10-24 15:22:10,271 INFO L125 PetriNetUnfolderBase]: For 90/103 co-relation queries the response was YES. [2024-10-24 15:22:10,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 961 conditions, 482 events. 93/482 cut-off events. For 90/103 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2169 event pairs, 20 based on Foata normal form. 0/456 useless extension candidates. Maximal degree in co-relation 918. Up to 197 conditions per place. [2024-10-24 15:22:10,274 INFO L140 encePairwiseOnDemand]: 93/104 looper letters, 46 selfloop transitions, 22 changer transitions 0/141 dead transitions. [2024-10-24 15:22:10,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 141 transitions, 569 flow [2024-10-24 15:22:10,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:22:10,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:22:10,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 511 transitions. [2024-10-24 15:22:10,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8189102564102564 [2024-10-24 15:22:10,276 INFO L175 Difference]: Start difference. First operand has 116 places, 120 transitions, 359 flow. Second operand 6 states and 511 transitions. [2024-10-24 15:22:10,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 141 transitions, 569 flow [2024-10-24 15:22:10,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 141 transitions, 565 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:22:10,280 INFO L231 Difference]: Finished difference. Result has 125 places, 141 transitions, 537 flow [2024-10-24 15:22:10,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=537, PETRI_PLACES=125, PETRI_TRANSITIONS=141} [2024-10-24 15:22:10,281 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 18 predicate places. [2024-10-24 15:22:10,282 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 141 transitions, 537 flow [2024-10-24 15:22:10,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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) [2024-10-24 15:22:10,282 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:10,283 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] [2024-10-24 15:22:10,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 15:22:10,283 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:10,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:10,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1812481170, now seen corresponding path program 1 times [2024-10-24 15:22:10,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:10,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003046359] [2024-10-24 15:22:10,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:10,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:10,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:10,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:10,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003046359] [2024-10-24 15:22:10,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003046359] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:10,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:10,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:22:10,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330926260] [2024-10-24 15:22:10,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:10,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:22:10,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:10,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:22:10,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:22:10,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2024-10-24 15:22:10,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 141 transitions, 537 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 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) [2024-10-24 15:22:10,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:10,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2024-10-24 15:22:10,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:10,736 INFO L124 PetriNetUnfolderBase]: 195/735 cut-off events. [2024-10-24 15:22:10,736 INFO L125 PetriNetUnfolderBase]: For 309/316 co-relation queries the response was YES. [2024-10-24 15:22:10,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1830 conditions, 735 events. 195/735 cut-off events. For 309/316 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4008 event pairs, 12 based on Foata normal form. 0/713 useless extension candidates. Maximal degree in co-relation 1782. Up to 295 conditions per place. [2024-10-24 15:22:10,740 INFO L140 encePairwiseOnDemand]: 89/104 looper letters, 56 selfloop transitions, 52 changer transitions 13/198 dead transitions. [2024-10-24 15:22:10,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 198 transitions, 1044 flow [2024-10-24 15:22:10,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:22:10,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:22:10,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2024-10-24 15:22:10,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8894230769230769 [2024-10-24 15:22:10,742 INFO L175 Difference]: Start difference. First operand has 125 places, 141 transitions, 537 flow. Second operand 6 states and 555 transitions. [2024-10-24 15:22:10,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 198 transitions, 1044 flow [2024-10-24 15:22:10,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 198 transitions, 1006 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-10-24 15:22:10,746 INFO L231 Difference]: Finished difference. Result has 135 places, 181 transitions, 952 flow [2024-10-24 15:22:10,746 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=952, PETRI_PLACES=135, PETRI_TRANSITIONS=181} [2024-10-24 15:22:10,747 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 28 predicate places. [2024-10-24 15:22:10,747 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 181 transitions, 952 flow [2024-10-24 15:22:10,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 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) [2024-10-24 15:22:10,747 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:10,747 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:22:10,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 15:22:10,748 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:10,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:10,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1380146183, now seen corresponding path program 1 times [2024-10-24 15:22:10,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:10,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026013721] [2024-10-24 15:22:10,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:10,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:11,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:11,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:11,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026013721] [2024-10-24 15:22:11,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026013721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:11,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:11,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 15:22:11,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271070203] [2024-10-24 15:22:11,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:11,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:22:11,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:11,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:22:11,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-24 15:22:11,528 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 104 [2024-10-24 15:22:11,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 181 transitions, 952 flow. Second operand has 12 states, 12 states have (on average 68.25) internal successors, (819), 12 states have internal predecessors, (819), 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) [2024-10-24 15:22:11,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:11,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 104 [2024-10-24 15:22:11,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:11,841 INFO L124 PetriNetUnfolderBase]: 189/697 cut-off events. [2024-10-24 15:22:11,841 INFO L125 PetriNetUnfolderBase]: For 722/762 co-relation queries the response was YES. [2024-10-24 15:22:11,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2206 conditions, 697 events. 189/697 cut-off events. For 722/762 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3753 event pairs, 18 based on Foata normal form. 21/711 useless extension candidates. Maximal degree in co-relation 2145. Up to 193 conditions per place. [2024-10-24 15:22:11,845 INFO L140 encePairwiseOnDemand]: 89/104 looper letters, 115 selfloop transitions, 39 changer transitions 20/235 dead transitions. [2024-10-24 15:22:11,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 235 transitions, 1684 flow [2024-10-24 15:22:11,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 15:22:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 15:22:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 998 transitions. [2024-10-24 15:22:11,848 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6854395604395604 [2024-10-24 15:22:11,848 INFO L175 Difference]: Start difference. First operand has 135 places, 181 transitions, 952 flow. Second operand 14 states and 998 transitions. [2024-10-24 15:22:11,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 235 transitions, 1684 flow [2024-10-24 15:22:11,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 235 transitions, 1633 flow, removed 18 selfloop flow, removed 3 redundant places. [2024-10-24 15:22:11,857 INFO L231 Difference]: Finished difference. Result has 151 places, 189 transitions, 1096 flow [2024-10-24 15:22:11,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1096, PETRI_PLACES=151, PETRI_TRANSITIONS=189} [2024-10-24 15:22:11,858 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 44 predicate places. [2024-10-24 15:22:11,858 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 189 transitions, 1096 flow [2024-10-24 15:22:11,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 68.25) internal successors, (819), 12 states have internal predecessors, (819), 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) [2024-10-24 15:22:11,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:11,859 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:22:11,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 15:22:11,859 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:11,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:11,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1024159188, now seen corresponding path program 1 times [2024-10-24 15:22:11,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:11,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462390289] [2024-10-24 15:22:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:11,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:12,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:12,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:12,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462390289] [2024-10-24 15:22:12,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462390289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:12,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:12,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 15:22:12,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099784803] [2024-10-24 15:22:12,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:12,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:22:12,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:12,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:22:12,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-24 15:22:12,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 104 [2024-10-24 15:22:12,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 189 transitions, 1096 flow. Second operand has 12 states, 12 states have (on average 74.75) internal successors, (897), 12 states have internal predecessors, (897), 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) [2024-10-24 15:22:12,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:12,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 104 [2024-10-24 15:22:12,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:12,969 INFO L124 PetriNetUnfolderBase]: 175/639 cut-off events. [2024-10-24 15:22:12,969 INFO L125 PetriNetUnfolderBase]: For 1067/1101 co-relation queries the response was YES. [2024-10-24 15:22:12,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2249 conditions, 639 events. 175/639 cut-off events. For 1067/1101 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3310 event pairs, 4 based on Foata normal form. 23/660 useless extension candidates. Maximal degree in co-relation 2220. Up to 126 conditions per place. [2024-10-24 15:22:12,973 INFO L140 encePairwiseOnDemand]: 86/104 looper letters, 87 selfloop transitions, 68 changer transitions 11/235 dead transitions. [2024-10-24 15:22:12,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 235 transitions, 1801 flow [2024-10-24 15:22:12,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 15:22:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 15:22:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1035 transitions. [2024-10-24 15:22:12,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7655325443786982 [2024-10-24 15:22:12,975 INFO L175 Difference]: Start difference. First operand has 151 places, 189 transitions, 1096 flow. Second operand 13 states and 1035 transitions. [2024-10-24 15:22:12,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 235 transitions, 1801 flow [2024-10-24 15:22:12,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 235 transitions, 1759 flow, removed 3 selfloop flow, removed 9 redundant places. [2024-10-24 15:22:12,986 INFO L231 Difference]: Finished difference. Result has 158 places, 197 transitions, 1388 flow [2024-10-24 15:22:12,986 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1388, PETRI_PLACES=158, PETRI_TRANSITIONS=197} [2024-10-24 15:22:12,986 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 51 predicate places. [2024-10-24 15:22:12,987 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 197 transitions, 1388 flow [2024-10-24 15:22:12,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.75) internal successors, (897), 12 states have internal predecessors, (897), 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) [2024-10-24 15:22:12,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:12,987 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:22:12,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 15:22:12,987 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:12,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:12,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1647267624, now seen corresponding path program 1 times [2024-10-24 15:22:12,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:12,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424950703] [2024-10-24 15:22:12,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:12,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:13,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:13,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424950703] [2024-10-24 15:22:13,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424950703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:13,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:13,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 15:22:13,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625826451] [2024-10-24 15:22:13,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:13,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:22:13,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:13,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:22:13,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-24 15:22:13,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 104 [2024-10-24 15:22:13,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 197 transitions, 1388 flow. Second operand has 12 states, 12 states have (on average 68.58333333333333) internal successors, (823), 12 states have internal predecessors, (823), 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) [2024-10-24 15:22:13,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:13,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 104 [2024-10-24 15:22:13,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:13,996 INFO L124 PetriNetUnfolderBase]: 170/661 cut-off events. [2024-10-24 15:22:13,996 INFO L125 PetriNetUnfolderBase]: For 2024/2103 co-relation queries the response was YES. [2024-10-24 15:22:13,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2607 conditions, 661 events. 170/661 cut-off events. For 2024/2103 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3544 event pairs, 15 based on Foata normal form. 43/698 useless extension candidates. Maximal degree in co-relation 2531. Up to 192 conditions per place. [2024-10-24 15:22:14,001 INFO L140 encePairwiseOnDemand]: 90/104 looper letters, 122 selfloop transitions, 35 changer transitions 12/231 dead transitions. [2024-10-24 15:22:14,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 231 transitions, 2092 flow [2024-10-24 15:22:14,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 15:22:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-24 15:22:14,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1125 transitions. [2024-10-24 15:22:14,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6760817307692307 [2024-10-24 15:22:14,004 INFO L175 Difference]: Start difference. First operand has 158 places, 197 transitions, 1388 flow. Second operand 16 states and 1125 transitions. [2024-10-24 15:22:14,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 231 transitions, 2092 flow [2024-10-24 15:22:14,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 231 transitions, 2062 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-24 15:22:14,019 INFO L231 Difference]: Finished difference. Result has 168 places, 193 transitions, 1394 flow [2024-10-24 15:22:14,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1358, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1394, PETRI_PLACES=168, PETRI_TRANSITIONS=193} [2024-10-24 15:22:14,020 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 61 predicate places. [2024-10-24 15:22:14,020 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 193 transitions, 1394 flow [2024-10-24 15:22:14,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 68.58333333333333) internal successors, (823), 12 states have internal predecessors, (823), 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) [2024-10-24 15:22:14,020 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:14,020 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:22:14,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 15:22:14,021 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:14,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:14,021 INFO L85 PathProgramCache]: Analyzing trace with hash 2132507222, now seen corresponding path program 2 times [2024-10-24 15:22:14,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:14,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362717432] [2024-10-24 15:22:14,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:14,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:22:14,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:22:14,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:22:14,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362717432] [2024-10-24 15:22:14,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362717432] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:22:14,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:22:14,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 15:22:14,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522553708] [2024-10-24 15:22:14,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:22:14,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 15:22:14,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:22:14,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 15:22:14,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-24 15:22:14,565 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 104 [2024-10-24 15:22:14,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 193 transitions, 1394 flow. Second operand has 12 states, 12 states have (on average 68.58333333333333) internal successors, (823), 12 states have internal predecessors, (823), 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) [2024-10-24 15:22:14,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:22:14,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 104 [2024-10-24 15:22:14,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:22:14,896 INFO L124 PetriNetUnfolderBase]: 165/646 cut-off events. [2024-10-24 15:22:14,896 INFO L125 PetriNetUnfolderBase]: For 2108/2139 co-relation queries the response was YES. [2024-10-24 15:22:14,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2591 conditions, 646 events. 165/646 cut-off events. For 2108/2139 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3426 event pairs, 15 based on Foata normal form. 13/653 useless extension candidates. Maximal degree in co-relation 2560. Up to 192 conditions per place. [2024-10-24 15:22:14,901 INFO L140 encePairwiseOnDemand]: 90/104 looper letters, 118 selfloop transitions, 34 changer transitions 10/224 dead transitions. [2024-10-24 15:22:14,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 224 transitions, 2062 flow [2024-10-24 15:22:14,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 15:22:14,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-24 15:22:14,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1186 transitions. [2024-10-24 15:22:14,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.670814479638009 [2024-10-24 15:22:14,904 INFO L175 Difference]: Start difference. First operand has 168 places, 193 transitions, 1394 flow. Second operand 17 states and 1186 transitions. [2024-10-24 15:22:14,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 224 transitions, 2062 flow [2024-10-24 15:22:14,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 224 transitions, 1976 flow, removed 4 selfloop flow, removed 15 redundant places. [2024-10-24 15:22:14,917 INFO L231 Difference]: Finished difference. Result has 165 places, 188 transitions, 1339 flow [2024-10-24 15:22:14,917 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=1302, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1339, PETRI_PLACES=165, PETRI_TRANSITIONS=188} [2024-10-24 15:22:14,918 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 58 predicate places. [2024-10-24 15:22:14,918 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 188 transitions, 1339 flow [2024-10-24 15:22:14,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 68.58333333333333) internal successors, (823), 12 states have internal predecessors, (823), 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) [2024-10-24 15:22:14,918 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:22:14,918 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:22:14,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 15:22:14,919 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-24 15:22:14,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:22:14,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1762241086, now seen corresponding path program 1 times [2024-10-24 15:22:14,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:22:14,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53877258] [2024-10-24 15:22:14,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:22:14,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:22:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:22:14,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 15:22:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 15:22:14,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 15:22:14,982 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 15:22:14,984 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2024-10-24 15:22:14,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-10-24 15:22:14,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-10-24 15:22:14,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-10-24 15:22:14,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-10-24 15:22:14,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-10-24 15:22:14,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-10-24 15:22:14,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-10-24 15:22:14,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-10-24 15:22:14,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-10-24 15:22:14,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-10-24 15:22:14,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-10-24 15:22:14,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-10-24 15:22:14,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-10-24 15:22:14,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-10-24 15:22:14,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 15:22:14,988 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:22:15,043 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 15:22:15,043 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 15:22:15,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:22:15 BasicIcfg [2024-10-24 15:22:15,047 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 15:22:15,047 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 15:22:15,047 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 15:22:15,047 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 15:22:15,048 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:22:07" (3/4) ... [2024-10-24 15:22:15,049 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 15:22:15,050 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 15:22:15,050 INFO L158 Benchmark]: Toolchain (without parser) took 8652.50ms. Allocated memory was 167.8MB in the beginning and 299.9MB in the end (delta: 132.1MB). Free memory was 136.4MB in the beginning and 108.2MB in the end (delta: 28.2MB). Peak memory consumption was 160.5MB. Max. memory is 16.1GB. [2024-10-24 15:22:15,050 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:22:15,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.84ms. Allocated memory is still 167.8MB. Free memory was 136.2MB in the beginning and 98.2MB in the end (delta: 38.0MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2024-10-24 15:22:15,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.67ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 96.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:22:15,051 INFO L158 Benchmark]: Boogie Preprocessor took 22.23ms. Allocated memory is still 167.8MB. Free memory was 96.0MB in the beginning and 94.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 15:22:15,051 INFO L158 Benchmark]: RCFGBuilder took 433.91ms. Allocated memory is still 167.8MB. Free memory was 94.0MB in the beginning and 130.8MB in the end (delta: -36.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-24 15:22:15,051 INFO L158 Benchmark]: TraceAbstraction took 7608.33ms. Allocated memory was 167.8MB in the beginning and 299.9MB in the end (delta: 132.1MB). Free memory was 129.7MB in the beginning and 108.2MB in the end (delta: 21.5MB). Peak memory consumption was 155.9MB. Max. memory is 16.1GB. [2024-10-24 15:22:15,052 INFO L158 Benchmark]: Witness Printer took 2.56ms. Allocated memory is still 299.9MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 15:22:15,052 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.84ms. Allocated memory is still 167.8MB. Free memory was 136.2MB in the beginning and 98.2MB in the end (delta: 38.0MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.67ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 96.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.23ms. Allocated memory is still 167.8MB. Free memory was 96.0MB in the beginning and 94.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.91ms. Allocated memory is still 167.8MB. Free memory was 94.0MB in the beginning and 130.8MB in the end (delta: -36.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7608.33ms. Allocated memory was 167.8MB in the beginning and 299.9MB in the end (delta: 132.1MB). Free memory was 129.7MB in the beginning and 108.2MB in the end (delta: 21.5MB). Peak memory consumption was 155.9MB. Max. memory is 16.1GB. * Witness Printer took 2.56ms. Allocated memory is still 299.9MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1243]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; VAL [x={0:0}] [L1224] 0 int *y; VAL [x={0:0}, y={0:0}] [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [m={1:0}, x={0:0}, y={0:0}] [L1234] 0 pthread_t id; VAL [m={1:0}, x={0:0}, y={0:0}] [L1235] 0 int *z; VAL [m={1:0}, x={0:0}, y={0:0}] [L1236] 0 x = malloc(sizeof(int)) VAL [m={1:0}, x={-2:0}, y={0:0}] [L1237] 0 y = malloc(sizeof(int)) VAL [m={1:0}, x={-2:0}, y={-3:0}] [L1238] 0 z = y VAL [m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1239] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, id=-1, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1241] EXPR 0 *x VAL [\old(arg)={0:0}, id=-1, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1241] EXPR 0 \read(*x) VAL [\old(arg)={0:0}, id=-1, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1241] 0 printf("%d\n",*x) VAL [\old(arg)={0:0}, id=-1, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1228] EXPR 1 *x VAL [\old(arg)={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1228] 1 *x = 3 VAL [\old(arg)={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1243] EXPR 0 \read(*z) VAL [\old(arg)={0:0}, arg={0:0}, id=-1, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] [L1229] EXPR 1 *y VAL [\old(arg)={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1229] 1 *y = 8 VAL [\old(arg)={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1243] 0 printf("%d\n",*z) VAL [\old(arg)={0:0}, arg={0:0}, id=-1, m={1:0}, x={-2:0}, y={-3:0}, z={-3:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: *x = 3 [1228] * C: *y = 8 [1229] * C: y = malloc(sizeof(int)) [1237] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: x = malloc(sizeof(int)) [1236] * C: *x = 3 [1228] and C: printf("%d\n",*z) [1243] - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: 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. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 138 locations, 15 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: 7.5s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1436 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1129 mSDsluCounter, 1258 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1195 mSDsCounter, 232 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5066 IncrementalHoareTripleChecker+Invalid, 5298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 232 mSolverCounterUnsat, 63 mSDtfsCounter, 5066 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1394occurred in iteration=12, InterpolantAutomatonStates: 99, 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, 2.6s InterpolantComputationTime, 759 NumberOfCodeBlocks, 759 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 668 ConstructedInterpolants, 0 QuantifiedInterpolants, 2320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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! [2024-10-24 15:22:15,079 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