./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.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 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:48:13,899 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:48:13,986 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:48:13,993 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:48:13,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:48:14,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:48:14,025 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:48:14,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:48:14,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:48:14,027 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:48:14,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:48:14,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:48:14,028 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:48:14,029 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:48:14,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:48:14,031 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:48:14,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:48:14,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:48:14,032 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:48:14,032 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:48:14,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:48:14,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:48:14,037 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:48:14,037 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:48:14,037 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:48:14,037 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:48:14,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:48:14,038 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:48:14,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:48:14,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:48:14,047 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:48:14,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:48:14,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:48:14,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:48:14,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:48:14,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:48:14,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:48:14,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:48:14,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:48:14,050 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:48:14,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:48:14,050 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 [2024-11-19 05:48:14,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:48:14,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:48:14,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:48:14,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:48:14,331 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:48:14,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2024-11-19 05:48:15,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:48:16,114 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:48:16,114 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2024-11-19 05:48:16,140 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9584b7760/0692f5ee95e94db4ba7e27f15513c9d2/FLAG5d455787d [2024-11-19 05:48:16,160 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9584b7760/0692f5ee95e94db4ba7e27f15513c9d2 [2024-11-19 05:48:16,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:48:16,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:48:16,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:48:16,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:48:16,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:48:16,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:16,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa9720b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16, skipping insertion in model container [2024-11-19 05:48:16,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:16,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:48:16,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:48:16,829 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:48:16,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:48:16,960 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:48:16,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16 WrapperNode [2024-11-19 05:48:16,961 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:48:16,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:48:16,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:48:16,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:48:16,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:16,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:17,011 INFO L138 Inliner]: procedures = 365, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2024-11-19 05:48:17,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:48:17,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:48:17,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:48:17,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:48:17,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:17,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:17,031 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:17,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:17,041 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:17,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:17,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:17,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:17,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:48:17,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:48:17,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:48:17,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:48:17,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16" (1/1) ... [2024-11-19 05:48:17,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:48:17,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:48:17,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:48:17,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:48:17,158 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:48:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:48:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:48:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:48:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 05:48:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:48:17,159 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:48:17,160 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:48:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:48:17,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:48:17,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:48:17,162 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:48:17,325 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:48:17,327 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:48:17,553 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:48:17,554 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:48:17,591 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:48:17,592 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 05:48:17,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:48:17 BoogieIcfgContainer [2024-11-19 05:48:17,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:48:17,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:48:17,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:48:17,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:48:17,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:48:16" (1/3) ... [2024-11-19 05:48:17,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c71c522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:48:17, skipping insertion in model container [2024-11-19 05:48:17,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:48:16" (2/3) ... [2024-11-19 05:48:17,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c71c522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:48:17, skipping insertion in model container [2024-11-19 05:48:17,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:48:17" (3/3) ... [2024-11-19 05:48:17,646 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2024-11-19 05:48:17,663 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:48:17,664 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-19 05:48:17,665 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:48:17,779 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 05:48:17,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 95 transitions, 194 flow [2024-11-19 05:48:17,878 INFO L124 PetriNetUnfolderBase]: 0/94 cut-off events. [2024-11-19 05:48:17,879 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:48:17,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 94 events. 0/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-19 05:48:17,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 95 transitions, 194 flow [2024-11-19 05:48:17,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 94 transitions, 191 flow [2024-11-19 05:48:17,904 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:48:17,916 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;@21644ebb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:48:17,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-19 05:48:17,924 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:48:17,924 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2024-11-19 05:48:17,925 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:48:17,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:17,926 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:48:17,927 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:17,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:17,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1486570224, now seen corresponding path program 1 times [2024-11-19 05:48:17,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:17,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371637925] [2024-11-19 05:48:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:17,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:18,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:18,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:18,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371637925] [2024-11-19 05:48:18,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371637925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:18,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:18,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:48:18,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699959433] [2024-11-19 05:48:18,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:18,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:48:18,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:18,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:48:18,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:48:18,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 95 [2024-11-19 05:48:18,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 94 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:18,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:18,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 95 [2024-11-19 05:48:18,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:18,393 INFO L124 PetriNetUnfolderBase]: 16/229 cut-off events. [2024-11-19 05:48:18,393 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:48:18,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 229 events. 16/229 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 740 event pairs, 16 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 240. Up to 46 conditions per place. [2024-11-19 05:48:18,402 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 13 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-11-19 05:48:18,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 93 transitions, 219 flow [2024-11-19 05:48:18,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:48:18,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:48:18,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2024-11-19 05:48:18,416 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.887719298245614 [2024-11-19 05:48:18,417 INFO L175 Difference]: Start difference. First operand has 98 places, 94 transitions, 191 flow. Second operand 3 states and 253 transitions. [2024-11-19 05:48:18,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 93 transitions, 219 flow [2024-11-19 05:48:18,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 93 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:48:18,429 INFO L231 Difference]: Finished difference. Result has 98 places, 93 transitions, 192 flow [2024-11-19 05:48:18,433 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=98, PETRI_TRANSITIONS=93} [2024-11-19 05:48:18,437 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 0 predicate places. [2024-11-19 05:48:18,440 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 93 transitions, 192 flow [2024-11-19 05:48:18,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:18,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:18,442 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] [2024-11-19 05:48:18,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:48:18,443 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:18,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:18,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1118414709, now seen corresponding path program 1 times [2024-11-19 05:48:18,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:18,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081235454] [2024-11-19 05:48:18,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:18,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:18,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:18,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:18,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081235454] [2024-11-19 05:48:18,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081235454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:18,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:18,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:48:18,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058690811] [2024-11-19 05:48:18,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:18,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:48:18,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:18,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:48:18,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:48:18,548 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2024-11-19 05:48:18,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 93 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:18,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:18,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2024-11-19 05:48:18,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:18,621 INFO L124 PetriNetUnfolderBase]: 24/301 cut-off events. [2024-11-19 05:48:18,623 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:48:18,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 301 events. 24/301 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1307 event pairs, 24 based on Foata normal form. 0/280 useless extension candidates. Maximal degree in co-relation 343. Up to 61 conditions per place. [2024-11-19 05:48:18,627 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 13 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2024-11-19 05:48:18,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 89 transitions, 212 flow [2024-11-19 05:48:18,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:48:18,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:48:18,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2024-11-19 05:48:18,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8736842105263158 [2024-11-19 05:48:18,630 INFO L175 Difference]: Start difference. First operand has 98 places, 93 transitions, 192 flow. Second operand 3 states and 249 transitions. [2024-11-19 05:48:18,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 89 transitions, 212 flow [2024-11-19 05:48:18,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 89 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:48:18,632 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 182 flow [2024-11-19 05:48:18,633 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=94, PETRI_TRANSITIONS=89} [2024-11-19 05:48:18,634 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, -4 predicate places. [2024-11-19 05:48:18,635 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 182 flow [2024-11-19 05:48:18,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:18,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:18,635 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] [2024-11-19 05:48:18,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:48:18,636 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:18,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:18,638 INFO L85 PathProgramCache]: Analyzing trace with hash -794414378, now seen corresponding path program 1 times [2024-11-19 05:48:18,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:18,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575028397] [2024-11-19 05:48:18,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:18,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:19,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:19,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:19,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575028397] [2024-11-19 05:48:19,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575028397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:19,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:19,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:48:19,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470437900] [2024-11-19 05:48:19,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:19,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:48:19,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:19,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:48:19,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:48:19,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 95 [2024-11-19 05:48:19,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 89 transitions, 182 flow. Second operand has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:19,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:19,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 95 [2024-11-19 05:48:19,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:19,682 INFO L124 PetriNetUnfolderBase]: 185/657 cut-off events. [2024-11-19 05:48:19,683 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:48:19,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 657 events. 185/657 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3570 event pairs, 52 based on Foata normal form. 0/617 useless extension candidates. Maximal degree in co-relation 1036. Up to 246 conditions per place. [2024-11-19 05:48:19,689 INFO L140 encePairwiseOnDemand]: 79/95 looper letters, 47 selfloop transitions, 41 changer transitions 0/153 dead transitions. [2024-11-19 05:48:19,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 153 transitions, 486 flow [2024-11-19 05:48:19,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:48:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:48:19,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 515 transitions. [2024-11-19 05:48:19,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9035087719298246 [2024-11-19 05:48:19,695 INFO L175 Difference]: Start difference. First operand has 94 places, 89 transitions, 182 flow. Second operand 6 states and 515 transitions. [2024-11-19 05:48:19,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 153 transitions, 486 flow [2024-11-19 05:48:19,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 153 transitions, 485 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:48:19,700 INFO L231 Difference]: Finished difference. Result has 102 places, 131 transitions, 439 flow [2024-11-19 05:48:19,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=439, PETRI_PLACES=102, PETRI_TRANSITIONS=131} [2024-11-19 05:48:19,701 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 4 predicate places. [2024-11-19 05:48:19,701 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 131 transitions, 439 flow [2024-11-19 05:48:19,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.66666666666667) internal successors, (436), 6 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:19,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:19,702 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:48:19,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:48:19,703 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:19,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:19,703 INFO L85 PathProgramCache]: Analyzing trace with hash 662746690, now seen corresponding path program 1 times [2024-11-19 05:48:19,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:19,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248655479] [2024-11-19 05:48:19,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:19,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:20,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:20,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248655479] [2024-11-19 05:48:20,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248655479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:20,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:20,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:48:20,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826429866] [2024-11-19 05:48:20,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:20,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:48:20,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:20,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:48:20,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:48:20,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2024-11-19 05:48:20,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 131 transitions, 439 flow. Second operand has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:20,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:20,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2024-11-19 05:48:20,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:20,435 INFO L124 PetriNetUnfolderBase]: 231/994 cut-off events. [2024-11-19 05:48:20,435 INFO L125 PetriNetUnfolderBase]: For 291/338 co-relation queries the response was YES. [2024-11-19 05:48:20,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2068 conditions, 994 events. 231/994 cut-off events. For 291/338 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 6807 event pairs, 25 based on Foata normal form. 26/987 useless extension candidates. Maximal degree in co-relation 2036. Up to 180 conditions per place. [2024-11-19 05:48:20,446 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 67 selfloop transitions, 32 changer transitions 0/190 dead transitions. [2024-11-19 05:48:20,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 190 transitions, 869 flow [2024-11-19 05:48:20,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:48:20,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:48:20,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 529 transitions. [2024-11-19 05:48:20,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9280701754385965 [2024-11-19 05:48:20,449 INFO L175 Difference]: Start difference. First operand has 102 places, 131 transitions, 439 flow. Second operand 6 states and 529 transitions. [2024-11-19 05:48:20,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 190 transitions, 869 flow [2024-11-19 05:48:20,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 190 transitions, 869 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:48:20,460 INFO L231 Difference]: Finished difference. Result has 112 places, 161 transitions, 741 flow [2024-11-19 05:48:20,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=741, PETRI_PLACES=112, PETRI_TRANSITIONS=161} [2024-11-19 05:48:20,462 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 14 predicate places. [2024-11-19 05:48:20,463 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 161 transitions, 741 flow [2024-11-19 05:48:20,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:20,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:20,464 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] [2024-11-19 05:48:20,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:48:20,464 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:20,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:20,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1263126400, now seen corresponding path program 1 times [2024-11-19 05:48:20,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:20,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417719502] [2024-11-19 05:48:20,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:20,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:20,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:20,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:20,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417719502] [2024-11-19 05:48:20,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417719502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:20,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:20,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:48:20,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34032919] [2024-11-19 05:48:20,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:20,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:48:20,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:20,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:48:20,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:48:20,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 95 [2024-11-19 05:48:20,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 161 transitions, 741 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:20,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:20,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 95 [2024-11-19 05:48:20,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:20,598 INFO L124 PetriNetUnfolderBase]: 39/278 cut-off events. [2024-11-19 05:48:20,598 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-11-19 05:48:20,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 278 events. 39/278 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 966 event pairs, 4 based on Foata normal form. 2/267 useless extension candidates. Maximal degree in co-relation 485. Up to 64 conditions per place. [2024-11-19 05:48:20,600 INFO L140 encePairwiseOnDemand]: 91/95 looper letters, 2 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2024-11-19 05:48:20,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 110 transitions, 375 flow [2024-11-19 05:48:20,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:48:20,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:48:20,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2024-11-19 05:48:20,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9649122807017544 [2024-11-19 05:48:20,602 INFO L175 Difference]: Start difference. First operand has 112 places, 161 transitions, 741 flow. Second operand 3 states and 275 transitions. [2024-11-19 05:48:20,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 110 transitions, 375 flow [2024-11-19 05:48:20,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 110 transitions, 333 flow, removed 13 selfloop flow, removed 8 redundant places. [2024-11-19 05:48:20,607 INFO L231 Difference]: Finished difference. Result has 105 places, 110 transitions, 329 flow [2024-11-19 05:48:20,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=105, PETRI_TRANSITIONS=110} [2024-11-19 05:48:20,608 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 7 predicate places. [2024-11-19 05:48:20,608 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 110 transitions, 329 flow [2024-11-19 05:48:20,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:20,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:20,608 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] [2024-11-19 05:48:20,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:48:20,609 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:20,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:20,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1313172452, now seen corresponding path program 1 times [2024-11-19 05:48:20,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:20,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032764578] [2024-11-19 05:48:20,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:20,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:20,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:20,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:20,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032764578] [2024-11-19 05:48:20,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032764578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:20,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:20,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:48:20,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013016198] [2024-11-19 05:48:20,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:20,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:48:20,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:20,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:48:20,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:48:21,124 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 95 [2024-11-19 05:48:21,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 110 transitions, 329 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) [2024-11-19 05:48:21,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:21,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 95 [2024-11-19 05:48:21,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:21,273 INFO L124 PetriNetUnfolderBase]: 93/474 cut-off events. [2024-11-19 05:48:21,273 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-19 05:48:21,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 474 events. 93/474 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2168 event pairs, 20 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 867. Up to 153 conditions per place. [2024-11-19 05:48:21,277 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 34 selfloop transitions, 22 changer transitions 0/131 dead transitions. [2024-11-19 05:48:21,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 131 transitions, 515 flow [2024-11-19 05:48:21,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:48:21,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:48:21,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2024-11-19 05:48:21,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8719298245614036 [2024-11-19 05:48:21,279 INFO L175 Difference]: Start difference. First operand has 105 places, 110 transitions, 329 flow. Second operand 6 states and 497 transitions. [2024-11-19 05:48:21,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 131 transitions, 515 flow [2024-11-19 05:48:21,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 131 transitions, 511 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:48:21,286 INFO L231 Difference]: Finished difference. Result has 114 places, 131 transitions, 507 flow [2024-11-19 05:48:21,286 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=507, PETRI_PLACES=114, PETRI_TRANSITIONS=131} [2024-11-19 05:48:21,288 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 16 predicate places. [2024-11-19 05:48:21,290 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 131 transitions, 507 flow [2024-11-19 05:48:21,290 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) [2024-11-19 05:48:21,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:21,291 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] [2024-11-19 05:48:21,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:48:21,291 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:21,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:21,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1654409923, now seen corresponding path program 1 times [2024-11-19 05:48:21,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:21,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708593941] [2024-11-19 05:48:21,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:21,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:21,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:21,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:21,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708593941] [2024-11-19 05:48:21,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708593941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:21,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:21,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:48:21,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760785654] [2024-11-19 05:48:21,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:21,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:48:21,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:21,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:48:21,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:48:21,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 95 [2024-11-19 05:48:21,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 131 transitions, 507 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:21,693 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:21,693 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 95 [2024-11-19 05:48:21,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:21,904 INFO L124 PetriNetUnfolderBase]: 195/727 cut-off events. [2024-11-19 05:48:21,905 INFO L125 PetriNetUnfolderBase]: For 309/315 co-relation queries the response was YES. [2024-11-19 05:48:21,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1814 conditions, 727 events. 195/727 cut-off events. For 309/315 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4010 event pairs, 12 based on Foata normal form. 0/705 useless extension candidates. Maximal degree in co-relation 1775. Up to 295 conditions per place. [2024-11-19 05:48:21,910 INFO L140 encePairwiseOnDemand]: 80/95 looper letters, 56 selfloop transitions, 52 changer transitions 11/188 dead transitions. [2024-11-19 05:48:21,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 188 transitions, 1014 flow [2024-11-19 05:48:21,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:48:21,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:48:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 501 transitions. [2024-11-19 05:48:21,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8789473684210526 [2024-11-19 05:48:21,913 INFO L175 Difference]: Start difference. First operand has 114 places, 131 transitions, 507 flow. Second operand 6 states and 501 transitions. [2024-11-19 05:48:21,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 188 transitions, 1014 flow [2024-11-19 05:48:21,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 188 transitions, 976 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-19 05:48:21,920 INFO L231 Difference]: Finished difference. Result has 124 places, 173 transitions, 931 flow [2024-11-19 05:48:21,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=931, PETRI_PLACES=124, PETRI_TRANSITIONS=173} [2024-11-19 05:48:21,922 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 26 predicate places. [2024-11-19 05:48:21,922 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 173 transitions, 931 flow [2024-11-19 05:48:21,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:21,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:21,923 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:48:21,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:48:21,923 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:21,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:21,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1313883544, now seen corresponding path program 1 times [2024-11-19 05:48:21,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:21,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296132858] [2024-11-19 05:48:21,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:21,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:22,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:22,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:22,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296132858] [2024-11-19 05:48:22,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296132858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:22,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:22,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:48:22,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840409484] [2024-11-19 05:48:22,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:22,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:48:22,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:22,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:48:22,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:48:23,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-19 05:48:23,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 173 transitions, 931 flow. Second operand has 10 states, 10 states have (on average 67.3) internal successors, (673), 10 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:23,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:23,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-19 05:48:23,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:23,193 INFO L124 PetriNetUnfolderBase]: 187/691 cut-off events. [2024-11-19 05:48:23,193 INFO L125 PetriNetUnfolderBase]: For 720/750 co-relation queries the response was YES. [2024-11-19 05:48:23,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2116 conditions, 691 events. 187/691 cut-off events. For 720/750 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3782 event pairs, 19 based on Foata normal form. 21/705 useless extension candidates. Maximal degree in co-relation 2068. Up to 131 conditions per place. [2024-11-19 05:48:23,198 INFO L140 encePairwiseOnDemand]: 83/95 looper letters, 88 selfloop transitions, 36 changer transitions 16/220 dead transitions. [2024-11-19 05:48:23,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 220 transitions, 1545 flow [2024-11-19 05:48:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 05:48:23,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 05:48:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 712 transitions. [2024-11-19 05:48:23,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7494736842105263 [2024-11-19 05:48:23,201 INFO L175 Difference]: Start difference. First operand has 124 places, 173 transitions, 931 flow. Second operand 10 states and 712 transitions. [2024-11-19 05:48:23,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 220 transitions, 1545 flow [2024-11-19 05:48:23,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 220 transitions, 1502 flow, removed 18 selfloop flow, removed 1 redundant places. [2024-11-19 05:48:23,217 INFO L231 Difference]: Finished difference. Result has 138 places, 181 transitions, 1078 flow [2024-11-19 05:48:23,217 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=889, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1078, PETRI_PLACES=138, PETRI_TRANSITIONS=181} [2024-11-19 05:48:23,219 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 40 predicate places. [2024-11-19 05:48:23,219 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 181 transitions, 1078 flow [2024-11-19 05:48:23,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.3) internal successors, (673), 10 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:23,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:23,220 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:48:23,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:48:23,220 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:23,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:23,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1916998803, now seen corresponding path program 1 times [2024-11-19 05:48:23,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:23,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302770750] [2024-11-19 05:48:23,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:23,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:23,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:23,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:23,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302770750] [2024-11-19 05:48:23,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302770750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:23,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:23,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 05:48:23,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790570881] [2024-11-19 05:48:23,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:23,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:48:23,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:23,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:48:23,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:48:24,129 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 95 [2024-11-19 05:48:24,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 181 transitions, 1078 flow. Second operand has 10 states, 10 states have (on average 68.7) internal successors, (687), 10 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:24,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:24,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 95 [2024-11-19 05:48:24,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:24,412 INFO L124 PetriNetUnfolderBase]: 230/794 cut-off events. [2024-11-19 05:48:24,412 INFO L125 PetriNetUnfolderBase]: For 1369/1411 co-relation queries the response was YES. [2024-11-19 05:48:24,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2783 conditions, 794 events. 230/794 cut-off events. For 1369/1411 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4565 event pairs, 8 based on Foata normal form. 28/818 useless extension candidates. Maximal degree in co-relation 2754. Up to 159 conditions per place. [2024-11-19 05:48:24,419 INFO L140 encePairwiseOnDemand]: 79/95 looper letters, 116 selfloop transitions, 67 changer transitions 17/263 dead transitions. [2024-11-19 05:48:24,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 263 transitions, 2090 flow [2024-11-19 05:48:24,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:48:24,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:48:24,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 706 transitions. [2024-11-19 05:48:24,422 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8257309941520468 [2024-11-19 05:48:24,422 INFO L175 Difference]: Start difference. First operand has 138 places, 181 transitions, 1078 flow. Second operand 9 states and 706 transitions. [2024-11-19 05:48:24,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 263 transitions, 2090 flow [2024-11-19 05:48:24,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 263 transitions, 2051 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-19 05:48:24,438 INFO L231 Difference]: Finished difference. Result has 144 places, 202 transitions, 1455 flow [2024-11-19 05:48:24,439 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1455, PETRI_PLACES=144, PETRI_TRANSITIONS=202} [2024-11-19 05:48:24,440 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 46 predicate places. [2024-11-19 05:48:24,440 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 202 transitions, 1455 flow [2024-11-19 05:48:24,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 68.7) internal successors, (687), 10 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:24,441 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:24,441 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] [2024-11-19 05:48:24,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:48:24,441 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:24,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:24,442 INFO L85 PathProgramCache]: Analyzing trace with hash -781584510, now seen corresponding path program 1 times [2024-11-19 05:48:24,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:24,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547292674] [2024-11-19 05:48:24,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:24,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:48:25,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:25,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:25,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547292674] [2024-11-19 05:48:25,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547292674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:25,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:25,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 05:48:25,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568560868] [2024-11-19 05:48:25,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:25,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 05:48:25,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:25,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 05:48:25,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-19 05:48:25,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-19 05:48:25,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 202 transitions, 1455 flow. Second operand has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:25,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:25,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-19 05:48:25,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:25,806 INFO L124 PetriNetUnfolderBase]: 199/789 cut-off events. [2024-11-19 05:48:25,806 INFO L125 PetriNetUnfolderBase]: For 2264/2344 co-relation queries the response was YES. [2024-11-19 05:48:25,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2988 conditions, 789 events. 199/789 cut-off events. For 2264/2344 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4648 event pairs, 21 based on Foata normal form. 43/825 useless extension candidates. Maximal degree in co-relation 2927. Up to 168 conditions per place. [2024-11-19 05:48:25,812 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 93 selfloop transitions, 36 changer transitions 6/229 dead transitions. [2024-11-19 05:48:25,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 229 transitions, 2041 flow [2024-11-19 05:48:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 05:48:25,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 05:48:25,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 772 transitions. [2024-11-19 05:48:25,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.738755980861244 [2024-11-19 05:48:25,816 INFO L175 Difference]: Start difference. First operand has 144 places, 202 transitions, 1455 flow. Second operand 11 states and 772 transitions. [2024-11-19 05:48:25,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 229 transitions, 2041 flow [2024-11-19 05:48:25,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 229 transitions, 1993 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-11-19 05:48:25,835 INFO L231 Difference]: Finished difference. Result has 152 places, 200 transitions, 1479 flow [2024-11-19 05:48:25,836 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=1423, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1479, PETRI_PLACES=152, PETRI_TRANSITIONS=200} [2024-11-19 05:48:25,837 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 54 predicate places. [2024-11-19 05:48:25,837 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 200 transitions, 1479 flow [2024-11-19 05:48:25,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:25,838 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:25,838 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:48:25,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:48:25,839 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:25,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:25,839 INFO L85 PathProgramCache]: Analyzing trace with hash -720812794, now seen corresponding path program 2 times [2024-11-19 05:48:25,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:25,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551364463] [2024-11-19 05:48:25,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 05:48:25,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:25,864 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 05:48:25,865 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:48:26,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:26,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:26,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551364463] [2024-11-19 05:48:26,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551364463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:26,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:26,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 05:48:26,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581453794] [2024-11-19 05:48:26,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:26,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 05:48:26,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:26,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 05:48:26,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-19 05:48:26,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-19 05:48:26,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 200 transitions, 1479 flow. Second operand has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:26,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:26,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-19 05:48:26,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:26,935 INFO L124 PetriNetUnfolderBase]: 196/784 cut-off events. [2024-11-19 05:48:26,935 INFO L125 PetriNetUnfolderBase]: For 2440/2490 co-relation queries the response was YES. [2024-11-19 05:48:26,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2992 conditions, 784 events. 196/784 cut-off events. For 2440/2490 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4619 event pairs, 21 based on Foata normal form. 28/805 useless extension candidates. Maximal degree in co-relation 2959. Up to 168 conditions per place. [2024-11-19 05:48:26,942 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 93 selfloop transitions, 34 changer transitions 7/228 dead transitions. [2024-11-19 05:48:26,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 228 transitions, 2057 flow [2024-11-19 05:48:26,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 05:48:26,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 05:48:26,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 837 transitions. [2024-11-19 05:48:26,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7342105263157894 [2024-11-19 05:48:26,944 INFO L175 Difference]: Start difference. First operand has 152 places, 200 transitions, 1479 flow. Second operand 12 states and 837 transitions. [2024-11-19 05:48:26,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 228 transitions, 2057 flow [2024-11-19 05:48:26,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 228 transitions, 1975 flow, removed 5 selfloop flow, removed 10 redundant places. [2024-11-19 05:48:26,963 INFO L231 Difference]: Finished difference. Result has 154 places, 198 transitions, 1455 flow [2024-11-19 05:48:26,964 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=1401, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1455, PETRI_PLACES=154, PETRI_TRANSITIONS=198} [2024-11-19 05:48:26,965 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 56 predicate places. [2024-11-19 05:48:26,965 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 198 transitions, 1455 flow [2024-11-19 05:48:26,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:26,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:26,966 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] [2024-11-19 05:48:26,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:48:26,966 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:26,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:26,967 INFO L85 PathProgramCache]: Analyzing trace with hash -277143894, now seen corresponding path program 3 times [2024-11-19 05:48:26,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:26,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059267046] [2024-11-19 05:48:26,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 05:48:26,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:26,981 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 05:48:26,982 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:48:27,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:27,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:27,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059267046] [2024-11-19 05:48:27,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059267046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:27,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:27,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 05:48:27,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225184556] [2024-11-19 05:48:27,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:27,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 05:48:27,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:27,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 05:48:27,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-19 05:48:27,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-19 05:48:27,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 198 transitions, 1455 flow. Second operand has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:27,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:27,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-19 05:48:27,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:28,288 INFO L124 PetriNetUnfolderBase]: 200/841 cut-off events. [2024-11-19 05:48:28,288 INFO L125 PetriNetUnfolderBase]: For 2518/2539 co-relation queries the response was YES. [2024-11-19 05:48:28,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3162 conditions, 841 events. 200/841 cut-off events. For 2518/2539 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5199 event pairs, 21 based on Foata normal form. 13/847 useless extension candidates. Maximal degree in co-relation 3128. Up to 243 conditions per place. [2024-11-19 05:48:28,295 INFO L140 encePairwiseOnDemand]: 79/95 looper letters, 70 selfloop transitions, 42 changer transitions 12/218 dead transitions. [2024-11-19 05:48:28,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 218 transitions, 1896 flow [2024-11-19 05:48:28,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 05:48:28,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 05:48:28,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 911 transitions. [2024-11-19 05:48:28,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7376518218623481 [2024-11-19 05:48:28,299 INFO L175 Difference]: Start difference. First operand has 154 places, 198 transitions, 1455 flow. Second operand 13 states and 911 transitions. [2024-11-19 05:48:28,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 218 transitions, 1896 flow [2024-11-19 05:48:28,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 218 transitions, 1790 flow, removed 7 selfloop flow, removed 11 redundant places. [2024-11-19 05:48:28,321 INFO L231 Difference]: Finished difference. Result has 159 places, 204 transitions, 1566 flow [2024-11-19 05:48:28,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=1379, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1566, PETRI_PLACES=159, PETRI_TRANSITIONS=204} [2024-11-19 05:48:28,323 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 61 predicate places. [2024-11-19 05:48:28,324 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 204 transitions, 1566 flow [2024-11-19 05:48:28,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:28,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:28,324 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] [2024-11-19 05:48:28,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:48:28,325 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:28,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:28,325 INFO L85 PathProgramCache]: Analyzing trace with hash -66813786, now seen corresponding path program 4 times [2024-11-19 05:48:28,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:28,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996937144] [2024-11-19 05:48:28,326 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 05:48:28,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:28,348 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 05:48:28,348 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 05:48:28,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:48:28,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:48:28,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996937144] [2024-11-19 05:48:28,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996937144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:48:28,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:48:28,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 05:48:28,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316626965] [2024-11-19 05:48:28,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:48:28,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 05:48:28,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:48:28,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 05:48:28,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-19 05:48:29,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-19 05:48:29,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 204 transitions, 1566 flow. Second operand has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:29,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:48:29,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-19 05:48:29,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:48:29,410 INFO L124 PetriNetUnfolderBase]: 197/827 cut-off events. [2024-11-19 05:48:29,410 INFO L125 PetriNetUnfolderBase]: For 2503/2523 co-relation queries the response was YES. [2024-11-19 05:48:29,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3151 conditions, 827 events. 197/827 cut-off events. For 2503/2523 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5088 event pairs, 21 based on Foata normal form. 13/833 useless extension candidates. Maximal degree in co-relation 3117. Up to 170 conditions per place. [2024-11-19 05:48:29,417 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 91 selfloop transitions, 37 changer transitions 7/229 dead transitions. [2024-11-19 05:48:29,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 229 transitions, 2122 flow [2024-11-19 05:48:29,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 05:48:29,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 05:48:29,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 898 transitions. [2024-11-19 05:48:29,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7271255060728745 [2024-11-19 05:48:29,419 INFO L175 Difference]: Start difference. First operand has 159 places, 204 transitions, 1566 flow. Second operand 13 states and 898 transitions. [2024-11-19 05:48:29,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 229 transitions, 2122 flow [2024-11-19 05:48:29,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 229 transitions, 2069 flow, removed 11 selfloop flow, removed 8 redundant places. [2024-11-19 05:48:29,441 INFO L231 Difference]: Finished difference. Result has 158 places, 199 transitions, 1552 flow [2024-11-19 05:48:29,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=1507, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1552, PETRI_PLACES=158, PETRI_TRANSITIONS=199} [2024-11-19 05:48:29,443 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 60 predicate places. [2024-11-19 05:48:29,443 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 199 transitions, 1552 flow [2024-11-19 05:48:29,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.54545454545455) internal successors, (743), 11 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:48:29,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:48:29,444 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] [2024-11-19 05:48:29,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 05:48:29,444 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2024-11-19 05:48:29,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:48:29,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1774965859, now seen corresponding path program 1 times [2024-11-19 05:48:29,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:48:29,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949750082] [2024-11-19 05:48:29,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:48:29,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:48:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:48:29,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:48:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:48:29,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:48:29,511 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:48:29,512 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2024-11-19 05:48:29,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-19 05:48:29,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-19 05:48:29,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-19 05:48:29,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-19 05:48:29,515 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2024-11-19 05:48:29,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2024-11-19 05:48:29,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-19 05:48:29,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-19 05:48:29,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-11-19 05:48:29,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-11-19 05:48:29,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-19 05:48:29,516 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-19 05:48:29,517 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-19 05:48:29,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 05:48:29,517 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:48:29,568 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 05:48:29,568 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 05:48:29,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:48:29 BasicIcfg [2024-11-19 05:48:29,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 05:48:29,573 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 05:48:29,573 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 05:48:29,574 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 05:48:29,578 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:48:17" (3/4) ... [2024-11-19 05:48:29,580 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-19 05:48:29,642 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 05:48:29,642 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 05:48:29,643 INFO L158 Benchmark]: Toolchain (without parser) took 13478.21ms. Allocated memory was 169.9MB in the beginning and 476.1MB in the end (delta: 306.2MB). Free memory was 111.3MB in the beginning and 280.0MB in the end (delta: -168.8MB). Peak memory consumption was 139.1MB. Max. memory is 16.1GB. [2024-11-19 05:48:29,643 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 169.9MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 05:48:29,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 792.66ms. Allocated memory is still 169.9MB. Free memory was 111.3MB in the beginning and 69.8MB in the end (delta: 41.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-19 05:48:29,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.92ms. Allocated memory is still 169.9MB. Free memory was 69.8MB in the beginning and 67.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 05:48:29,644 INFO L158 Benchmark]: Boogie Preprocessor took 36.74ms. Allocated memory is still 169.9MB. Free memory was 67.3MB in the beginning and 65.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 05:48:29,645 INFO L158 Benchmark]: RCFGBuilder took 543.38ms. Allocated memory is still 169.9MB. Free memory was 65.2MB in the beginning and 48.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-19 05:48:29,646 INFO L158 Benchmark]: TraceAbstraction took 11936.54ms. Allocated memory was 169.9MB in the beginning and 476.1MB in the end (delta: 306.2MB). Free memory was 136.8MB in the beginning and 286.3MB in the end (delta: -149.6MB). Peak memory consumption was 155.9MB. Max. memory is 16.1GB. [2024-11-19 05:48:29,646 INFO L158 Benchmark]: Witness Printer took 69.20ms. Allocated memory is still 476.1MB. Free memory was 286.3MB in the beginning and 280.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 05:48:29,647 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 169.9MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 792.66ms. Allocated memory is still 169.9MB. Free memory was 111.3MB in the beginning and 69.8MB in the end (delta: 41.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.92ms. Allocated memory is still 169.9MB. Free memory was 69.8MB in the beginning and 67.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.74ms. Allocated memory is still 169.9MB. Free memory was 67.3MB in the beginning and 65.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 543.38ms. Allocated memory is still 169.9MB. Free memory was 65.2MB in the beginning and 48.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11936.54ms. Allocated memory was 169.9MB in the beginning and 476.1MB in the end (delta: 306.2MB). Free memory was 136.8MB in the beginning and 286.3MB in the end (delta: -149.6MB). Peak memory consumption was 155.9MB. Max. memory is 16.1GB. * Witness Printer took 69.20ms. Allocated memory is still 476.1MB. Free memory was 286.3MB in the beginning and 280.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1245]: Data race detected Data race detected The following path leads to a data race: [L1227] 0 data *d; VAL [d={0:0}] [L1228] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [d={0:0}, m={1:0}] [L1237] 0 pthread_t id; VAL [d={0:0}, m={1:0}] [L1238] 0 data *z; VAL [d={0:0}, m={1:0}] [L1239] 0 d = malloc(sizeof(data)) VAL [d={-2:0}, m={1:0}] [L1240] 0 z = d VAL [d={-2:0}, m={1:0}, z={-2:0}] [L1241] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, d={-2:0}, id=-1, m={1:0}, z={-2:0}] [L1243] EXPR 0 d->x VAL [\old(arg)={0:0}, d={-2:0}, id=-1, m={1:0}, z={-2:0}] [L1243] 0 printf("%d\n",d->x) VAL [\old(arg)={0:0}, d={-2:0}, id=-1, m={1:0}, z={-2:0}] [L1245] EXPR 0 z->y VAL [\old(arg)={0:0}, d={-2:0}, id=-1, m={1:0}, z={-2:0}] [L1231] EXPR 1 d->x VAL [\old(arg)={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1231] 1 d->x = 3 VAL [\old(arg)={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] EXPR 1 d->y VAL [\old(arg)={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] 1 d->y = 8 VAL [\old(arg)={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1245] 0 printf("%d\n",z->y) VAL [\old(arg)={0:0}, arg={0:0}, d={-2:0}, id=-1, m={1:0}, z={-2:0}] 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: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d = malloc(sizeof(data)) [1239] * C: d->y = 8 [1232] and C: printf("%d\n",z->y) [1245] - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: 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 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: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: 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, 129 locations, 14 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: 11.7s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1464 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1060 mSDsluCounter, 424 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 360 mSDsCounter, 500 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4784 IncrementalHoareTripleChecker+Invalid, 5284 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 500 mSolverCounterUnsat, 64 mSDtfsCounter, 4784 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1566occurred in iteration=12, InterpolantAutomatonStates: 101, 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, 0.2s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 740 NumberOfCodeBlocks, 737 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 657 ConstructedInterpolants, 0 QuantifiedInterpolants, 4135 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! [2024-11-19 05:48:29,678 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