./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/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-wip.dd.update-z3-fca748b-m [2024-11-20 13:44:19,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 13:44:19,447 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-20 13:44:19,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 13:44:19,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 13:44:19,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 13:44:19,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 13:44:19,484 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 13:44:19,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 13:44:19,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 13:44:19,485 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 13:44:19,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 13:44:19,486 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 13:44:19,486 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 13:44:19,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 13:44:19,488 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 13:44:19,490 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 13:44:19,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 13:44:19,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 13:44:19,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 13:44:19,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 13:44:19,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 13:44:19,494 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-20 13:44:19,494 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 13:44:19,495 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 13:44:19,495 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 13:44:19,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 13:44:19,495 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 13:44:19,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 13:44:19,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 13:44:19,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 13:44:19,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:44:19,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 13:44:19,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 13:44:19,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 13:44:19,497 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 13:44:19,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 13:44:19,498 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 13:44:19,498 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 13:44:19,498 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 13:44:19,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 13:44:19,499 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 [2024-11-20 13:44:19,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 13:44:19,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 13:44:19,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 13:44:19,822 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 13:44:19,823 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 13:44:19,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2024-11-20 13:44:21,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 13:44:21,498 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 13:44:21,499 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/02-base_26-malloc_struct.i [2024-11-20 13:44:21,520 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8894b7e1d/966e20b5b1f34576ba19b9f2b7726842/FLAGe9558fa78 [2024-11-20 13:44:21,534 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8894b7e1d/966e20b5b1f34576ba19b9f2b7726842 [2024-11-20 13:44:21,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 13:44:21,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 13:44:21,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 13:44:21,538 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 13:44:21,544 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 13:44:21,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:44:21" (1/1) ... [2024-11-20 13:44:21,546 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c9de82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:21, skipping insertion in model container [2024-11-20 13:44:21,546 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:44:21" (1/1) ... [2024-11-20 13:44:21,599 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 13:44:22,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:44:22,135 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 13:44:22,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 13:44:22,265 INFO L204 MainTranslator]: Completed translation [2024-11-20 13:44:22,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22 WrapperNode [2024-11-20 13:44:22,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 13:44:22,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 13:44:22,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 13:44:22,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 13:44:22,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22" (1/1) ... [2024-11-20 13:44:22,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22" (1/1) ... [2024-11-20 13:44:22,334 INFO L138 Inliner]: procedures = 365, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2024-11-20 13:44:22,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 13:44:22,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 13:44:22,335 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 13:44:22,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 13:44:22,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22" (1/1) ... [2024-11-20 13:44:22,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22" (1/1) ... [2024-11-20 13:44:22,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22" (1/1) ... [2024-11-20 13:44:22,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22" (1/1) ... [2024-11-20 13:44:22,364 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22" (1/1) ... [2024-11-20 13:44:22,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22" (1/1) ... [2024-11-20 13:44:22,371 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22" (1/1) ... [2024-11-20 13:44:22,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22" (1/1) ... [2024-11-20 13:44:22,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 13:44:22,382 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 13:44:22,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 13:44:22,383 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 13:44:22,384 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22" (1/1) ... [2024-11-20 13:44:22,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 13:44:22,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 13:44:22,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 13:44:22,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 13:44:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-20 13:44:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-20 13:44:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-20 13:44:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-20 13:44:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 13:44:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 13:44:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-20 13:44:22,478 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-20 13:44:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-20 13:44:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 13:44:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 13:44:22,480 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 13:44:22,659 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 13:44:22,660 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 13:44:22,832 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 13:44:22,832 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 13:44:22,860 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 13:44:22,861 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 13:44:22,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:44:22 BoogieIcfgContainer [2024-11-20 13:44:22,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 13:44:22,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 13:44:22,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 13:44:22,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 13:44:22,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:44:21" (1/3) ... [2024-11-20 13:44:22,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ae4f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:44:22, skipping insertion in model container [2024-11-20 13:44:22,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:44:22" (2/3) ... [2024-11-20 13:44:22,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35ae4f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:44:22, skipping insertion in model container [2024-11-20 13:44:22,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:44:22" (3/3) ... [2024-11-20 13:44:22,871 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2024-11-20 13:44:22,887 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 13:44:22,888 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-11-20 13:44:22,889 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 13:44:22,951 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 13:44:22,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 95 transitions, 194 flow [2024-11-20 13:44:23,021 INFO L124 PetriNetUnfolderBase]: 0/94 cut-off events. [2024-11-20 13:44:23,021 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:44:23,025 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. [2024-11-20 13:44:23,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 95 transitions, 194 flow [2024-11-20 13:44:23,031 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 94 transitions, 191 flow [2024-11-20 13:44:23,041 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 13:44:23,050 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;@76bffd5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 13:44:23,050 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-20 13:44:23,057 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 13:44:23,060 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2024-11-20 13:44:23,060 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:44:23,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:23,061 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:44:23,062 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)] === [2024-11-20 13:44:23,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:23,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1486570224, now seen corresponding path program 1 times [2024-11-20 13:44:23,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:23,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909982681] [2024-11-20 13:44:23,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:23,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:23,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:23,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909982681] [2024-11-20 13:44:23,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909982681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:23,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:23,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:44:23,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207547332] [2024-11-20 13:44:23,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:23,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:44:23,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:23,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:44:23,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:44:23,365 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 95 [2024-11-20 13:44:23,368 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) [2024-11-20 13:44:23,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:23,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 95 [2024-11-20 13:44:23,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:23,456 INFO L124 PetriNetUnfolderBase]: 16/229 cut-off events. [2024-11-20 13:44:23,456 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:44:23,460 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. [2024-11-20 13:44:23,462 INFO L140 encePairwiseOnDemand]: 92/95 looper letters, 13 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-11-20 13:44:23,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 93 transitions, 219 flow [2024-11-20 13:44:23,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:44:23,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:44:23,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2024-11-20 13:44:23,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.887719298245614 [2024-11-20 13:44:23,476 INFO L175 Difference]: Start difference. First operand has 98 places, 94 transitions, 191 flow. Second operand 3 states and 253 transitions. [2024-11-20 13:44:23,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 93 transitions, 219 flow [2024-11-20 13:44:23,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 93 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:44:23,486 INFO L231 Difference]: Finished difference. Result has 98 places, 93 transitions, 192 flow [2024-11-20 13:44:23,489 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} [2024-11-20 13:44:23,494 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 0 predicate places. [2024-11-20 13:44:23,494 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 93 transitions, 192 flow [2024-11-20 13:44:23,495 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) [2024-11-20 13:44:23,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:23,495 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] [2024-11-20 13:44:23,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 13:44:23,497 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)] === [2024-11-20 13:44:23,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:23,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1118414709, now seen corresponding path program 1 times [2024-11-20 13:44:23,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:23,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352334831] [2024-11-20 13:44:23,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:23,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:23,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:23,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:23,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352334831] [2024-11-20 13:44:23,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352334831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:23,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:23,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 13:44:23,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895853836] [2024-11-20 13:44:23,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:23,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:44:23,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:23,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:44:23,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:44:23,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2024-11-20 13:44:23,633 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) [2024-11-20 13:44:23,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:23,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2024-11-20 13:44:23,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:23,712 INFO L124 PetriNetUnfolderBase]: 24/301 cut-off events. [2024-11-20 13:44:23,712 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 13:44:23,714 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. [2024-11-20 13:44:23,716 INFO L140 encePairwiseOnDemand]: 90/95 looper letters, 13 selfloop transitions, 1 changer transitions 0/89 dead transitions. [2024-11-20 13:44:23,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 89 transitions, 212 flow [2024-11-20 13:44:23,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:44:23,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:44:23,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2024-11-20 13:44:23,720 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8736842105263158 [2024-11-20 13:44:23,721 INFO L175 Difference]: Start difference. First operand has 98 places, 93 transitions, 192 flow. Second operand 3 states and 249 transitions. [2024-11-20 13:44:23,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 89 transitions, 212 flow [2024-11-20 13:44:23,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 89 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 13:44:23,724 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 182 flow [2024-11-20 13:44:23,725 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} [2024-11-20 13:44:23,726 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, -4 predicate places. [2024-11-20 13:44:23,726 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 182 flow [2024-11-20 13:44:23,726 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) [2024-11-20 13:44:23,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:23,727 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] [2024-11-20 13:44:23,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 13:44:23,728 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)] === [2024-11-20 13:44:23,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:23,728 INFO L85 PathProgramCache]: Analyzing trace with hash -794414378, now seen corresponding path program 1 times [2024-11-20 13:44:23,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:23,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019495798] [2024-11-20 13:44:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:23,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:24,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:24,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:24,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019495798] [2024-11-20 13:44:24,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019495798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:24,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:24,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:44:24,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25829148] [2024-11-20 13:44:24,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:24,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:44:24,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:24,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:44:24,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:44:24,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 95 [2024-11-20 13:44:24,478 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) [2024-11-20 13:44:24,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:24,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 95 [2024-11-20 13:44:24,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:24,736 INFO L124 PetriNetUnfolderBase]: 185/657 cut-off events. [2024-11-20 13:44:24,737 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 13:44:24,739 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. [2024-11-20 13:44:24,742 INFO L140 encePairwiseOnDemand]: 79/95 looper letters, 47 selfloop transitions, 41 changer transitions 0/153 dead transitions. [2024-11-20 13:44:24,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 153 transitions, 486 flow [2024-11-20 13:44:24,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:44:24,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:44:24,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 515 transitions. [2024-11-20 13:44:24,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9035087719298246 [2024-11-20 13:44:24,747 INFO L175 Difference]: Start difference. First operand has 94 places, 89 transitions, 182 flow. Second operand 6 states and 515 transitions. [2024-11-20 13:44:24,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 153 transitions, 486 flow [2024-11-20 13:44:24,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 153 transitions, 485 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:44:24,753 INFO L231 Difference]: Finished difference. Result has 102 places, 131 transitions, 439 flow [2024-11-20 13:44:24,754 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} [2024-11-20 13:44:24,755 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 4 predicate places. [2024-11-20 13:44:24,755 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 131 transitions, 439 flow [2024-11-20 13:44:24,756 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) [2024-11-20 13:44:24,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:24,757 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] [2024-11-20 13:44:24,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 13:44:24,757 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)] === [2024-11-20 13:44:24,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:24,758 INFO L85 PathProgramCache]: Analyzing trace with hash 662746690, now seen corresponding path program 1 times [2024-11-20 13:44:24,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:24,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117961185] [2024-11-20 13:44:24,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:24,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:25,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:25,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:25,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117961185] [2024-11-20 13:44:25,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117961185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:25,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:25,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:44:25,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463699581] [2024-11-20 13:44:25,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:25,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:44:25,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:25,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:44:25,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:44:25,232 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 95 [2024-11-20 13:44:25,233 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) [2024-11-20 13:44:25,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:25,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 95 [2024-11-20 13:44:25,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:25,409 INFO L124 PetriNetUnfolderBase]: 231/994 cut-off events. [2024-11-20 13:44:25,410 INFO L125 PetriNetUnfolderBase]: For 291/338 co-relation queries the response was YES. [2024-11-20 13:44:25,413 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. [2024-11-20 13:44:25,420 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 67 selfloop transitions, 32 changer transitions 0/190 dead transitions. [2024-11-20 13:44:25,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 190 transitions, 869 flow [2024-11-20 13:44:25,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:44:25,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:44:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 529 transitions. [2024-11-20 13:44:25,423 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9280701754385965 [2024-11-20 13:44:25,423 INFO L175 Difference]: Start difference. First operand has 102 places, 131 transitions, 439 flow. Second operand 6 states and 529 transitions. [2024-11-20 13:44:25,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 190 transitions, 869 flow [2024-11-20 13:44:25,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 190 transitions, 869 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 13:44:25,434 INFO L231 Difference]: Finished difference. Result has 112 places, 161 transitions, 741 flow [2024-11-20 13:44:25,435 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} [2024-11-20 13:44:25,436 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 14 predicate places. [2024-11-20 13:44:25,437 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 161 transitions, 741 flow [2024-11-20 13:44:25,437 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) [2024-11-20 13:44:25,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:25,438 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] [2024-11-20 13:44:25,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 13:44:25,438 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)] === [2024-11-20 13:44:25,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:25,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1263126400, now seen corresponding path program 1 times [2024-11-20 13:44:25,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:25,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443851277] [2024-11-20 13:44:25,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:25,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:25,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:25,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:25,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443851277] [2024-11-20 13:44:25,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443851277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:25,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:25,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 13:44:25,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284668333] [2024-11-20 13:44:25,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:25,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 13:44:25,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:25,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 13:44:25,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 13:44:25,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 95 [2024-11-20 13:44:25,534 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) [2024-11-20 13:44:25,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:25,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 95 [2024-11-20 13:44:25,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:25,574 INFO L124 PetriNetUnfolderBase]: 39/278 cut-off events. [2024-11-20 13:44:25,574 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-11-20 13:44:25,576 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. [2024-11-20 13:44:25,576 INFO L140 encePairwiseOnDemand]: 91/95 looper letters, 2 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2024-11-20 13:44:25,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 110 transitions, 375 flow [2024-11-20 13:44:25,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 13:44:25,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 13:44:25,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2024-11-20 13:44:25,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9649122807017544 [2024-11-20 13:44:25,578 INFO L175 Difference]: Start difference. First operand has 112 places, 161 transitions, 741 flow. Second operand 3 states and 275 transitions. [2024-11-20 13:44:25,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 110 transitions, 375 flow [2024-11-20 13:44:25,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 110 transitions, 333 flow, removed 13 selfloop flow, removed 8 redundant places. [2024-11-20 13:44:25,585 INFO L231 Difference]: Finished difference. Result has 105 places, 110 transitions, 329 flow [2024-11-20 13:44:25,585 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} [2024-11-20 13:44:25,586 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 7 predicate places. [2024-11-20 13:44:25,587 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 110 transitions, 329 flow [2024-11-20 13:44:25,587 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) [2024-11-20 13:44:25,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:25,588 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] [2024-11-20 13:44:25,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 13:44:25,588 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)] === [2024-11-20 13:44:25,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:25,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1313172452, now seen corresponding path program 1 times [2024-11-20 13:44:25,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:25,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209733287] [2024-11-20 13:44:25,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:25,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:25,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:25,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:25,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209733287] [2024-11-20 13:44:25,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209733287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:25,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:25,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:44:25,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395914132] [2024-11-20 13:44:25,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:25,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:44:25,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:25,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:44:25,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:44:26,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 95 [2024-11-20 13:44:26,069 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) [2024-11-20 13:44:26,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:26,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 95 [2024-11-20 13:44:26,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:26,206 INFO L124 PetriNetUnfolderBase]: 93/474 cut-off events. [2024-11-20 13:44:26,207 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-20 13:44:26,208 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. [2024-11-20 13:44:26,209 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 34 selfloop transitions, 22 changer transitions 0/131 dead transitions. [2024-11-20 13:44:26,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 131 transitions, 515 flow [2024-11-20 13:44:26,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:44:26,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:44:26,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2024-11-20 13:44:26,212 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8719298245614036 [2024-11-20 13:44:26,212 INFO L175 Difference]: Start difference. First operand has 105 places, 110 transitions, 329 flow. Second operand 6 states and 497 transitions. [2024-11-20 13:44:26,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 131 transitions, 515 flow [2024-11-20 13:44:26,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 131 transitions, 511 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 13:44:26,218 INFO L231 Difference]: Finished difference. Result has 114 places, 131 transitions, 507 flow [2024-11-20 13:44:26,219 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} [2024-11-20 13:44:26,220 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 16 predicate places. [2024-11-20 13:44:26,220 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 131 transitions, 507 flow [2024-11-20 13:44:26,221 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) [2024-11-20 13:44:26,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:26,222 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] [2024-11-20 13:44:26,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 13:44:26,222 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)] === [2024-11-20 13:44:26,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:26,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1654409923, now seen corresponding path program 1 times [2024-11-20 13:44:26,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:26,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549546342] [2024-11-20 13:44:26,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:26,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:26,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:26,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:26,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549546342] [2024-11-20 13:44:26,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549546342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:26,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:26,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 13:44:26,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859502298] [2024-11-20 13:44:26,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:26,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 13:44:26,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:26,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 13:44:26,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 13:44:26,599 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 95 [2024-11-20 13:44:26,600 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) [2024-11-20 13:44:26,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:26,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 95 [2024-11-20 13:44:26,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:26,809 INFO L124 PetriNetUnfolderBase]: 195/727 cut-off events. [2024-11-20 13:44:26,810 INFO L125 PetriNetUnfolderBase]: For 309/315 co-relation queries the response was YES. [2024-11-20 13:44:26,812 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. [2024-11-20 13:44:26,814 INFO L140 encePairwiseOnDemand]: 80/95 looper letters, 56 selfloop transitions, 52 changer transitions 11/188 dead transitions. [2024-11-20 13:44:26,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 188 transitions, 1014 flow [2024-11-20 13:44:26,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 13:44:26,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 13:44:26,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 501 transitions. [2024-11-20 13:44:26,816 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8789473684210526 [2024-11-20 13:44:26,817 INFO L175 Difference]: Start difference. First operand has 114 places, 131 transitions, 507 flow. Second operand 6 states and 501 transitions. [2024-11-20 13:44:26,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 188 transitions, 1014 flow [2024-11-20 13:44:26,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 188 transitions, 976 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-20 13:44:26,822 INFO L231 Difference]: Finished difference. Result has 124 places, 173 transitions, 931 flow [2024-11-20 13:44:26,822 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} [2024-11-20 13:44:26,823 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 26 predicate places. [2024-11-20 13:44:26,824 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 173 transitions, 931 flow [2024-11-20 13:44:26,824 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) [2024-11-20 13:44:26,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:26,825 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:44:26,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 13:44:26,825 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)] === [2024-11-20 13:44:26,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:26,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1313883544, now seen corresponding path program 1 times [2024-11-20 13:44:26,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:26,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637746306] [2024-11-20 13:44:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:26,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:27,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:27,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:27,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637746306] [2024-11-20 13:44:27,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637746306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:27,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:27,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:44:27,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435432444] [2024-11-20 13:44:27,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:27,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 13:44:27,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:27,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 13:44:27,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:44:27,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-20 13:44:27,908 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) [2024-11-20 13:44:27,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:27,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-20 13:44:27,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:28,100 INFO L124 PetriNetUnfolderBase]: 187/691 cut-off events. [2024-11-20 13:44:28,100 INFO L125 PetriNetUnfolderBase]: For 720/750 co-relation queries the response was YES. [2024-11-20 13:44:28,102 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. [2024-11-20 13:44:28,106 INFO L140 encePairwiseOnDemand]: 83/95 looper letters, 88 selfloop transitions, 36 changer transitions 16/220 dead transitions. [2024-11-20 13:44:28,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 220 transitions, 1545 flow [2024-11-20 13:44:28,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 13:44:28,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 13:44:28,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 712 transitions. [2024-11-20 13:44:28,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7494736842105263 [2024-11-20 13:44:28,108 INFO L175 Difference]: Start difference. First operand has 124 places, 173 transitions, 931 flow. Second operand 10 states and 712 transitions. [2024-11-20 13:44:28,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 220 transitions, 1545 flow [2024-11-20 13:44:28,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 220 transitions, 1502 flow, removed 18 selfloop flow, removed 1 redundant places. [2024-11-20 13:44:28,119 INFO L231 Difference]: Finished difference. Result has 138 places, 181 transitions, 1078 flow [2024-11-20 13:44:28,120 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} [2024-11-20 13:44:28,122 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 40 predicate places. [2024-11-20 13:44:28,123 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 181 transitions, 1078 flow [2024-11-20 13:44:28,123 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) [2024-11-20 13:44:28,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:28,124 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:44:28,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 13:44:28,124 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)] === [2024-11-20 13:44:28,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:28,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1916998803, now seen corresponding path program 1 times [2024-11-20 13:44:28,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:28,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770769459] [2024-11-20 13:44:28,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:28,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:28,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:28,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770769459] [2024-11-20 13:44:28,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770769459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:28,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:28,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 13:44:28,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978009116] [2024-11-20 13:44:28,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:28,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 13:44:28,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:28,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 13:44:28,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-20 13:44:29,014 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 95 [2024-11-20 13:44:29,015 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) [2024-11-20 13:44:29,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:29,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 95 [2024-11-20 13:44:29,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:29,290 INFO L124 PetriNetUnfolderBase]: 230/794 cut-off events. [2024-11-20 13:44:29,290 INFO L125 PetriNetUnfolderBase]: For 1369/1411 co-relation queries the response was YES. [2024-11-20 13:44:29,293 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. [2024-11-20 13:44:29,296 INFO L140 encePairwiseOnDemand]: 79/95 looper letters, 116 selfloop transitions, 67 changer transitions 17/263 dead transitions. [2024-11-20 13:44:29,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 263 transitions, 2090 flow [2024-11-20 13:44:29,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 13:44:29,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 13:44:29,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 706 transitions. [2024-11-20 13:44:29,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8257309941520468 [2024-11-20 13:44:29,299 INFO L175 Difference]: Start difference. First operand has 138 places, 181 transitions, 1078 flow. Second operand 9 states and 706 transitions. [2024-11-20 13:44:29,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 263 transitions, 2090 flow [2024-11-20 13:44:29,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 263 transitions, 2051 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-20 13:44:29,314 INFO L231 Difference]: Finished difference. Result has 144 places, 202 transitions, 1455 flow [2024-11-20 13:44:29,315 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} [2024-11-20 13:44:29,315 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 46 predicate places. [2024-11-20 13:44:29,317 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 202 transitions, 1455 flow [2024-11-20 13:44:29,317 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) [2024-11-20 13:44:29,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:29,318 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] [2024-11-20 13:44:29,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 13:44:29,318 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)] === [2024-11-20 13:44:29,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:29,318 INFO L85 PathProgramCache]: Analyzing trace with hash -781584510, now seen corresponding path program 1 times [2024-11-20 13:44:29,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:29,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747382153] [2024-11-20 13:44:29,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:29,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:29,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:29,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:29,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:29,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747382153] [2024-11-20 13:44:29,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747382153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:29,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:29,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 13:44:29,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782892097] [2024-11-20 13:44:29,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:29,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 13:44:29,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:29,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 13:44:29,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 13:44:30,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-20 13:44:30,348 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) [2024-11-20 13:44:30,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:30,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-20 13:44:30,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:30,597 INFO L124 PetriNetUnfolderBase]: 199/789 cut-off events. [2024-11-20 13:44:30,597 INFO L125 PetriNetUnfolderBase]: For 2264/2344 co-relation queries the response was YES. [2024-11-20 13:44:30,600 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. [2024-11-20 13:44:30,603 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 93 selfloop transitions, 36 changer transitions 6/229 dead transitions. [2024-11-20 13:44:30,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 229 transitions, 2041 flow [2024-11-20 13:44:30,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 13:44:30,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-20 13:44:30,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 772 transitions. [2024-11-20 13:44:30,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.738755980861244 [2024-11-20 13:44:30,606 INFO L175 Difference]: Start difference. First operand has 144 places, 202 transitions, 1455 flow. Second operand 11 states and 772 transitions. [2024-11-20 13:44:30,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 229 transitions, 2041 flow [2024-11-20 13:44:30,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 229 transitions, 1993 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-11-20 13:44:30,625 INFO L231 Difference]: Finished difference. Result has 152 places, 200 transitions, 1479 flow [2024-11-20 13:44:30,625 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} [2024-11-20 13:44:30,626 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 54 predicate places. [2024-11-20 13:44:30,626 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 200 transitions, 1479 flow [2024-11-20 13:44:30,627 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) [2024-11-20 13:44:30,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:30,627 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] [2024-11-20 13:44:30,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 13:44:30,627 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)] === [2024-11-20 13:44:30,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:30,628 INFO L85 PathProgramCache]: Analyzing trace with hash -720812794, now seen corresponding path program 2 times [2024-11-20 13:44:30,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:30,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132467830] [2024-11-20 13:44:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:30,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:31,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:31,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:31,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132467830] [2024-11-20 13:44:31,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132467830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:31,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:31,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 13:44:31,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148450915] [2024-11-20 13:44:31,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:31,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 13:44:31,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:31,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 13:44:31,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-20 13:44:31,434 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-20 13:44:31,435 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) [2024-11-20 13:44:31,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:31,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-20 13:44:31,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:31,709 INFO L124 PetriNetUnfolderBase]: 196/784 cut-off events. [2024-11-20 13:44:31,709 INFO L125 PetriNetUnfolderBase]: For 2440/2490 co-relation queries the response was YES. [2024-11-20 13:44:31,713 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. [2024-11-20 13:44:31,716 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 93 selfloop transitions, 34 changer transitions 7/228 dead transitions. [2024-11-20 13:44:31,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 228 transitions, 2057 flow [2024-11-20 13:44:31,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 13:44:31,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-20 13:44:31,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 837 transitions. [2024-11-20 13:44:31,719 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7342105263157894 [2024-11-20 13:44:31,719 INFO L175 Difference]: Start difference. First operand has 152 places, 200 transitions, 1479 flow. Second operand 12 states and 837 transitions. [2024-11-20 13:44:31,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 228 transitions, 2057 flow [2024-11-20 13:44:31,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 228 transitions, 1975 flow, removed 5 selfloop flow, removed 10 redundant places. [2024-11-20 13:44:31,740 INFO L231 Difference]: Finished difference. Result has 154 places, 198 transitions, 1455 flow [2024-11-20 13:44:31,741 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} [2024-11-20 13:44:31,743 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 56 predicate places. [2024-11-20 13:44:31,743 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 198 transitions, 1455 flow [2024-11-20 13:44:31,744 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) [2024-11-20 13:44:31,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:31,744 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:44:31,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 13:44:31,745 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)] === [2024-11-20 13:44:31,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:31,745 INFO L85 PathProgramCache]: Analyzing trace with hash -277143894, now seen corresponding path program 3 times [2024-11-20 13:44:31,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:31,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590021784] [2024-11-20 13:44:31,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:31,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:32,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:32,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:32,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590021784] [2024-11-20 13:44:32,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590021784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:32,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:32,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 13:44:32,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754483823] [2024-11-20 13:44:32,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:32,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 13:44:32,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:32,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 13:44:32,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-20 13:44:32,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-20 13:44:32,652 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) [2024-11-20 13:44:32,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:32,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-20 13:44:32,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:33,145 INFO L124 PetriNetUnfolderBase]: 200/841 cut-off events. [2024-11-20 13:44:33,146 INFO L125 PetriNetUnfolderBase]: For 2518/2539 co-relation queries the response was YES. [2024-11-20 13:44:33,150 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. [2024-11-20 13:44:33,154 INFO L140 encePairwiseOnDemand]: 79/95 looper letters, 70 selfloop transitions, 42 changer transitions 12/218 dead transitions. [2024-11-20 13:44:33,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 218 transitions, 1896 flow [2024-11-20 13:44:33,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 13:44:33,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 13:44:33,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 911 transitions. [2024-11-20 13:44:33,157 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7376518218623481 [2024-11-20 13:44:33,157 INFO L175 Difference]: Start difference. First operand has 154 places, 198 transitions, 1455 flow. Second operand 13 states and 911 transitions. [2024-11-20 13:44:33,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 218 transitions, 1896 flow [2024-11-20 13:44:33,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 218 transitions, 1790 flow, removed 7 selfloop flow, removed 11 redundant places. [2024-11-20 13:44:33,177 INFO L231 Difference]: Finished difference. Result has 159 places, 204 transitions, 1566 flow [2024-11-20 13:44:33,178 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} [2024-11-20 13:44:33,179 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 61 predicate places. [2024-11-20 13:44:33,179 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 204 transitions, 1566 flow [2024-11-20 13:44:33,179 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) [2024-11-20 13:44:33,180 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:33,180 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] [2024-11-20 13:44:33,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 13:44:33,180 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)] === [2024-11-20 13:44:33,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:33,181 INFO L85 PathProgramCache]: Analyzing trace with hash -66813786, now seen corresponding path program 4 times [2024-11-20 13:44:33,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:33,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999325015] [2024-11-20 13:44:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:33,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 13:44:33,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 13:44:33,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 13:44:33,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999325015] [2024-11-20 13:44:33,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999325015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 13:44:33,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 13:44:33,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 13:44:33,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874463030] [2024-11-20 13:44:33,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 13:44:33,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 13:44:33,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 13:44:33,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 13:44:33,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 13:44:33,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 95 [2024-11-20 13:44:33,970 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) [2024-11-20 13:44:33,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 13:44:33,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 95 [2024-11-20 13:44:33,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 13:44:34,257 INFO L124 PetriNetUnfolderBase]: 197/827 cut-off events. [2024-11-20 13:44:34,257 INFO L125 PetriNetUnfolderBase]: For 2503/2523 co-relation queries the response was YES. [2024-11-20 13:44:34,261 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. [2024-11-20 13:44:34,265 INFO L140 encePairwiseOnDemand]: 84/95 looper letters, 91 selfloop transitions, 37 changer transitions 7/229 dead transitions. [2024-11-20 13:44:34,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 229 transitions, 2122 flow [2024-11-20 13:44:34,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 13:44:34,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 13:44:34,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 898 transitions. [2024-11-20 13:44:34,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7271255060728745 [2024-11-20 13:44:34,268 INFO L175 Difference]: Start difference. First operand has 159 places, 204 transitions, 1566 flow. Second operand 13 states and 898 transitions. [2024-11-20 13:44:34,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 229 transitions, 2122 flow [2024-11-20 13:44:34,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 229 transitions, 2069 flow, removed 11 selfloop flow, removed 8 redundant places. [2024-11-20 13:44:34,289 INFO L231 Difference]: Finished difference. Result has 158 places, 199 transitions, 1552 flow [2024-11-20 13:44:34,290 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} [2024-11-20 13:44:34,291 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 60 predicate places. [2024-11-20 13:44:34,291 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 199 transitions, 1552 flow [2024-11-20 13:44:34,292 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) [2024-11-20 13:44:34,292 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 13:44:34,292 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] [2024-11-20 13:44:34,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 13:44:34,292 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)] === [2024-11-20 13:44:34,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 13:44:34,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1774965859, now seen corresponding path program 1 times [2024-11-20 13:44:34,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 13:44:34,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405475268] [2024-11-20 13:44:34,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 13:44:34,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 13:44:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:44:34,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 13:44:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 13:44:34,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 13:44:34,366 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 13:44:34,367 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2024-11-20 13:44:34,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2024-11-20 13:44:34,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2024-11-20 13:44:34,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2024-11-20 13:44:34,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2024-11-20 13:44:34,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2024-11-20 13:44:34,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2024-11-20 13:44:34,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2024-11-20 13:44:34,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2024-11-20 13:44:34,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2024-11-20 13:44:34,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2024-11-20 13:44:34,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2024-11-20 13:44:34,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2024-11-20 13:44:34,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2024-11-20 13:44:34,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 13:44:34,372 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 13:44:34,430 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 13:44:34,430 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 13:44:34,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:44:34 BasicIcfg [2024-11-20 13:44:34,436 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 13:44:34,437 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 13:44:34,438 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 13:44:34,438 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 13:44:34,439 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:44:22" (3/4) ... [2024-11-20 13:44:34,439 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-20 13:44:34,493 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 13:44:34,493 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 13:44:34,494 INFO L158 Benchmark]: Toolchain (without parser) took 12956.75ms. Allocated memory was 172.0MB in the beginning and 392.2MB in the end (delta: 220.2MB). Free memory was 139.6MB in the beginning and 170.1MB in the end (delta: -30.5MB). Peak memory consumption was 190.7MB. Max. memory is 16.1GB. [2024-11-20 13:44:34,494 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 13:44:34,494 INFO L158 Benchmark]: CACSL2BoogieTranslator took 727.84ms. Allocated memory is still 172.0MB. Free memory was 139.6MB in the beginning and 97.7MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-20 13:44:34,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.39ms. Allocated memory is still 172.0MB. Free memory was 97.7MB in the beginning and 95.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 13:44:34,495 INFO L158 Benchmark]: Boogie Preprocessor took 44.09ms. Allocated memory is still 172.0MB. Free memory was 95.6MB in the beginning and 93.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 13:44:34,495 INFO L158 Benchmark]: RCFGBuilder took 479.15ms. Allocated memory is still 172.0MB. Free memory was 93.5MB in the beginning and 128.3MB in the end (delta: -34.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-20 13:44:34,495 INFO L158 Benchmark]: TraceAbstraction took 11573.28ms. Allocated memory was 172.0MB in the beginning and 392.2MB in the end (delta: 220.2MB). Free memory was 127.2MB in the beginning and 176.4MB in the end (delta: -49.2MB). Peak memory consumption was 174.1MB. Max. memory is 16.1GB. [2024-11-20 13:44:34,495 INFO L158 Benchmark]: Witness Printer took 56.23ms. Allocated memory is still 392.2MB. Free memory was 175.4MB in the beginning and 170.1MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 13:44:34,497 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 727.84ms. Allocated memory is still 172.0MB. Free memory was 139.6MB in the beginning and 97.7MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.39ms. Allocated memory is still 172.0MB. Free memory was 97.7MB in the beginning and 95.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.09ms. Allocated memory is still 172.0MB. Free memory was 95.6MB in the beginning and 93.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 479.15ms. Allocated memory is still 172.0MB. Free memory was 93.5MB in the beginning and 128.3MB in the end (delta: -34.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11573.28ms. Allocated memory was 172.0MB in the beginning and 392.2MB in the end (delta: 220.2MB). Free memory was 127.2MB in the beginning and 176.4MB in the end (delta: -49.2MB). Peak memory consumption was 174.1MB. Max. memory is 16.1GB. * Witness Printer took 56.23ms. Allocated memory is still 392.2MB. Free memory was 175.4MB in the beginning and 170.1MB in the end (delta: 5.2MB). 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->y = 8 [1232] * 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] 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: 11.4s, 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, 4.8s InterpolantComputationTime, 740 NumberOfCodeBlocks, 740 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! [2024-11-20 13:44:34,518 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