./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.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 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:52:25,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:52:25,162 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:52:25,169 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:52:25,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:52:25,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:52:25,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:52:25,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:52:25,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:52:25,209 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:52:25,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:52:25,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:52:25,210 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:52:25,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:52:25,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:52:25,212 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:52:25,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:52:25,212 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:52:25,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:52:25,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:52:25,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:52:25,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:52:25,214 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:52:25,215 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:52:25,215 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:52:25,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:52:25,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:52:25,215 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:52:25,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:52:25,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:52:25,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:52:25,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:52:25,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:52:25,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:52:25,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:52:25,216 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:52:25,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:52:25,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:52:25,217 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:52:25,217 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:52:25,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:52:25,218 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef [2024-11-22 17:52:25,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:52:25,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:52:25,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:52:25,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:52:25,441 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:52:25,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2024-11-22 17:52:26,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:52:26,882 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:52:26,883 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_07-cond_racing2.i [2024-11-22 17:52:26,897 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc0fbfded/e5ae6db6b33646abb4e7ada9ad9871e8/FLAG5c73f1b07 [2024-11-22 17:52:27,216 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc0fbfded/e5ae6db6b33646abb4e7ada9ad9871e8 [2024-11-22 17:52:27,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:52:27,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:52:27,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:52:27,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:52:27,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:52:27,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a7cf8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27, skipping insertion in model container [2024-11-22 17:52:27,228 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,265 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:52:27,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:52:27,679 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:52:27,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:52:27,786 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:52:27,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27 WrapperNode [2024-11-22 17:52:27,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:52:27,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:52:27,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:52:27,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:52:27,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,829 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,851 INFO L138 Inliner]: procedures = 271, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 157 [2024-11-22 17:52:27,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:52:27,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:52:27,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:52:27,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:52:27,859 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,883 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,886 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:52:27,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:52:27,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:52:27,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:52:27,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27" (1/1) ... [2024-11-22 17:52:27,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:52:27,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:52:27,915 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) [2024-11-22 17:52:27,917 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 [2024-11-22 17:52:27,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 17:52:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 17:52:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:52:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:52:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:52:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:52:27,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:52:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-22 17:52:27,959 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-22 17:52:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:52:27,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:52:27,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:52:27,961 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:52:28,101 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:52:28,104 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:52:28,376 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:52:28,376 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:52:28,402 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:52:28,403 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-22 17:52:28,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:52:28 BoogieIcfgContainer [2024-11-22 17:52:28,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:52:28,406 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:52:28,407 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:52:28,409 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:52:28,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:52:27" (1/3) ... [2024-11-22 17:52:28,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77985561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:52:28, skipping insertion in model container [2024-11-22 17:52:28,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:27" (2/3) ... [2024-11-22 17:52:28,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77985561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:52:28, skipping insertion in model container [2024-11-22 17:52:28,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:52:28" (3/3) ... [2024-11-22 17:52:28,414 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_07-cond_racing2.i [2024-11-22 17:52:28,427 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:52:28,427 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-22 17:52:28,427 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:52:28,476 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-22 17:52:28,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 211 transitions, 429 flow [2024-11-22 17:52:28,582 INFO L124 PetriNetUnfolderBase]: 25/280 cut-off events. [2024-11-22 17:52:28,582 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:52:28,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 280 events. 25/280 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 677 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 155. Up to 6 conditions per place. [2024-11-22 17:52:28,590 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 211 transitions, 429 flow [2024-11-22 17:52:28,595 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 211 transitions, 429 flow [2024-11-22 17:52:28,601 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:52:28,609 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;@d3c865c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:52:28,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-22 17:52:28,634 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:52:28,634 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2024-11-22 17:52:28,635 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:52:28,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:28,635 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:28,636 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 17:52:28,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:28,642 INFO L85 PathProgramCache]: Analyzing trace with hash -605595689, now seen corresponding path program 1 times [2024-11-22 17:52:28,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:28,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102510547] [2024-11-22 17:52:28,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:28,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:29,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:29,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102510547] [2024-11-22 17:52:29,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102510547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:29,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:29,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:52:29,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383770268] [2024-11-22 17:52:29,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:29,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:52:29,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:29,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:52:29,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:52:29,634 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 211 [2024-11-22 17:52:29,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 211 transitions, 429 flow. Second operand has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 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) [2024-11-22 17:52:29,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:29,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 211 [2024-11-22 17:52:29,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:29,880 INFO L124 PetriNetUnfolderBase]: 135/895 cut-off events. [2024-11-22 17:52:29,881 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 17:52:29,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1175 conditions, 895 events. 135/895 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5199 event pairs, 60 based on Foata normal form. 106/896 useless extension candidates. Maximal degree in co-relation 989. Up to 198 conditions per place. [2024-11-22 17:52:29,892 INFO L140 encePairwiseOnDemand]: 193/211 looper letters, 48 selfloop transitions, 5 changer transitions 0/220 dead transitions. [2024-11-22 17:52:29,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 220 transitions, 553 flow [2024-11-22 17:52:29,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:52:29,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:52:29,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1098 transitions. [2024-11-22 17:52:29,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8672985781990521 [2024-11-22 17:52:29,914 INFO L175 Difference]: Start difference. First operand has 198 places, 211 transitions, 429 flow. Second operand 6 states and 1098 transitions. [2024-11-22 17:52:29,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 220 transitions, 553 flow [2024-11-22 17:52:29,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 220 transitions, 553 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:52:29,923 INFO L231 Difference]: Finished difference. Result has 200 places, 196 transitions, 409 flow [2024-11-22 17:52:29,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=409, PETRI_PLACES=200, PETRI_TRANSITIONS=196} [2024-11-22 17:52:29,928 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, 2 predicate places. [2024-11-22 17:52:29,928 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 196 transitions, 409 flow [2024-11-22 17:52:29,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 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) [2024-11-22 17:52:29,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:29,929 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:29,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:52:29,930 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 17:52:29,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:29,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1901146632, now seen corresponding path program 1 times [2024-11-22 17:52:29,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:29,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393728109] [2024-11-22 17:52:29,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:29,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:30,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:30,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393728109] [2024-11-22 17:52:30,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393728109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:30,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:30,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:52:30,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440373664] [2024-11-22 17:52:30,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:30,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:30,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:30,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:30,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:30,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 211 [2024-11-22 17:52:30,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 196 transitions, 409 flow. Second operand has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 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) [2024-11-22 17:52:30,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:30,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 211 [2024-11-22 17:52:30,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:30,119 INFO L124 PetriNetUnfolderBase]: 57/640 cut-off events. [2024-11-22 17:52:30,119 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-22 17:52:30,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 640 events. 57/640 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2923 event pairs, 25 based on Foata normal form. 1/572 useless extension candidates. Maximal degree in co-relation 634. Up to 96 conditions per place. [2024-11-22 17:52:30,124 INFO L140 encePairwiseOnDemand]: 208/211 looper letters, 22 selfloop transitions, 2 changer transitions 0/202 dead transitions. [2024-11-22 17:52:30,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 202 transitions, 469 flow [2024-11-22 17:52:30,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:30,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:30,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 565 transitions. [2024-11-22 17:52:30,125 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8925750394944708 [2024-11-22 17:52:30,126 INFO L175 Difference]: Start difference. First operand has 200 places, 196 transitions, 409 flow. Second operand 3 states and 565 transitions. [2024-11-22 17:52:30,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 202 transitions, 469 flow [2024-11-22 17:52:30,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 202 transitions, 459 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 17:52:30,131 INFO L231 Difference]: Finished difference. Result has 198 places, 196 transitions, 407 flow [2024-11-22 17:52:30,133 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=198, PETRI_TRANSITIONS=196} [2024-11-22 17:52:30,133 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, 0 predicate places. [2024-11-22 17:52:30,134 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 196 transitions, 407 flow [2024-11-22 17:52:30,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 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) [2024-11-22 17:52:30,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:30,134 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:30,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:52:30,135 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 17:52:30,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:30,135 INFO L85 PathProgramCache]: Analyzing trace with hash -506205996, now seen corresponding path program 1 times [2024-11-22 17:52:30,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:30,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666693656] [2024-11-22 17:52:30,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:30,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:30,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:30,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666693656] [2024-11-22 17:52:30,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666693656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:30,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:30,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:52:30,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827088398] [2024-11-22 17:52:30,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:30,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:30,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:30,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:30,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:30,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 211 [2024-11-22 17:52:30,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 196 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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) [2024-11-22 17:52:30,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:30,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 211 [2024-11-22 17:52:30,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:30,399 INFO L124 PetriNetUnfolderBase]: 134/935 cut-off events. [2024-11-22 17:52:30,400 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-22 17:52:30,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 935 events. 134/935 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5369 event pairs, 33 based on Foata normal form. 0/838 useless extension candidates. Maximal degree in co-relation 1088. Up to 130 conditions per place. [2024-11-22 17:52:30,405 INFO L140 encePairwiseOnDemand]: 202/211 looper letters, 30 selfloop transitions, 6 changer transitions 0/209 dead transitions. [2024-11-22 17:52:30,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 209 transitions, 508 flow [2024-11-22 17:52:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:30,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:30,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2024-11-22 17:52:30,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8909952606635071 [2024-11-22 17:52:30,407 INFO L175 Difference]: Start difference. First operand has 198 places, 196 transitions, 407 flow. Second operand 3 states and 564 transitions. [2024-11-22 17:52:30,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 209 transitions, 508 flow [2024-11-22 17:52:30,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 209 transitions, 504 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:52:30,410 INFO L231 Difference]: Finished difference. Result has 198 places, 198 transitions, 441 flow [2024-11-22 17:52:30,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=441, PETRI_PLACES=198, PETRI_TRANSITIONS=198} [2024-11-22 17:52:30,412 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, 0 predicate places. [2024-11-22 17:52:30,412 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 198 transitions, 441 flow [2024-11-22 17:52:30,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 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) [2024-11-22 17:52:30,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:30,413 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:30,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:52:30,413 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 17:52:30,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:30,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1186278216, now seen corresponding path program 1 times [2024-11-22 17:52:30,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:30,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248179657] [2024-11-22 17:52:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:30,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:30,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:30,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:30,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248179657] [2024-11-22 17:52:30,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248179657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:30,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:30,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:52:30,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747980254] [2024-11-22 17:52:30,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:30,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:30,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:30,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:30,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:30,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 211 [2024-11-22 17:52:30,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 198 transitions, 441 flow. Second operand has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2024-11-22 17:52:30,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:30,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 211 [2024-11-22 17:52:30,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:30,620 INFO L124 PetriNetUnfolderBase]: 139/1017 cut-off events. [2024-11-22 17:52:30,621 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-11-22 17:52:30,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 1017 events. 139/1017 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 6283 event pairs, 51 based on Foata normal form. 0/905 useless extension candidates. Maximal degree in co-relation 1267. Up to 220 conditions per place. [2024-11-22 17:52:30,626 INFO L140 encePairwiseOnDemand]: 206/211 looper letters, 27 selfloop transitions, 4 changer transitions 0/205 dead transitions. [2024-11-22 17:52:30,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 205 transitions, 521 flow [2024-11-22 17:52:30,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:30,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:30,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-11-22 17:52:30,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8846761453396524 [2024-11-22 17:52:30,627 INFO L175 Difference]: Start difference. First operand has 198 places, 198 transitions, 441 flow. Second operand 3 states and 560 transitions. [2024-11-22 17:52:30,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 205 transitions, 521 flow [2024-11-22 17:52:30,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 205 transitions, 507 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:52:30,631 INFO L231 Difference]: Finished difference. Result has 200 places, 201 transitions, 461 flow [2024-11-22 17:52:30,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=461, PETRI_PLACES=200, PETRI_TRANSITIONS=201} [2024-11-22 17:52:30,633 INFO L277 CegarLoopForPetriNet]: 198 programPoint places, 2 predicate places. [2024-11-22 17:52:30,633 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 201 transitions, 461 flow [2024-11-22 17:52:30,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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) [2024-11-22 17:52:30,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:30,634 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:30,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:52:30,635 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 17:52:30,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:30,636 INFO L85 PathProgramCache]: Analyzing trace with hash 83373136, now seen corresponding path program 1 times [2024-11-22 17:52:30,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:30,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002132504] [2024-11-22 17:52:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:30,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:52:30,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:52:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:52:30,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:52:30,732 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:52:30,733 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-22 17:52:30,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-22 17:52:30,734 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-22 17:52:30,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-22 17:52:30,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-22 17:52:30,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-22 17:52:30,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-22 17:52:30,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-22 17:52:30,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-22 17:52:30,735 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-22 17:52:30,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-22 17:52:30,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-22 17:52:30,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:52:30,736 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-22 17:52:30,739 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 17:52:30,739 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-22 17:52:30,766 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 17:52:30,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 260 transitions, 536 flow [2024-11-22 17:52:30,803 INFO L124 PetriNetUnfolderBase]: 43/426 cut-off events. [2024-11-22 17:52:30,803 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-22 17:52:30,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 426 events. 43/426 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1294 event pairs, 0 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 282. Up to 9 conditions per place. [2024-11-22 17:52:30,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 242 places, 260 transitions, 536 flow [2024-11-22 17:52:30,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 242 places, 260 transitions, 536 flow [2024-11-22 17:52:30,810 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:52:30,811 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;@d3c865c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:52:30,811 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-22 17:52:30,817 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:52:30,817 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2024-11-22 17:52:30,817 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:52:30,817 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:30,817 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:30,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:30,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:30,818 INFO L85 PathProgramCache]: Analyzing trace with hash 2037411799, now seen corresponding path program 1 times [2024-11-22 17:52:30,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:30,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671727855] [2024-11-22 17:52:30,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:30,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:31,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:31,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671727855] [2024-11-22 17:52:31,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671727855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:31,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:31,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:52:31,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142250319] [2024-11-22 17:52:31,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:31,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:52:31,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:31,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:52:31,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:52:31,198 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 260 [2024-11-22 17:52:31,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 260 transitions, 536 flow. Second operand has 6 states, 6 states have (on average 204.5) internal successors, (1227), 6 states have internal predecessors, (1227), 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) [2024-11-22 17:52:31,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:31,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 260 [2024-11-22 17:52:31,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:32,005 INFO L124 PetriNetUnfolderBase]: 1710/6555 cut-off events. [2024-11-22 17:52:32,006 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-11-22 17:52:32,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9270 conditions, 6555 events. 1710/6555 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 64562 event pairs, 168 based on Foata normal form. 1344/7252 useless extension candidates. Maximal degree in co-relation 4690. Up to 1840 conditions per place. [2024-11-22 17:52:32,040 INFO L140 encePairwiseOnDemand]: 236/260 looper letters, 80 selfloop transitions, 5 changer transitions 0/287 dead transitions. [2024-11-22 17:52:32,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 287 transitions, 760 flow [2024-11-22 17:52:32,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:52:32,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:52:32,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1370 transitions. [2024-11-22 17:52:32,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8782051282051282 [2024-11-22 17:52:32,043 INFO L175 Difference]: Start difference. First operand has 242 places, 260 transitions, 536 flow. Second operand 6 states and 1370 transitions. [2024-11-22 17:52:32,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 287 transitions, 760 flow [2024-11-22 17:52:32,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 287 transitions, 760 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:52:32,048 INFO L231 Difference]: Finished difference. Result has 244 places, 239 transitions, 504 flow [2024-11-22 17:52:32,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=244, PETRI_TRANSITIONS=239} [2024-11-22 17:52:32,049 INFO L277 CegarLoopForPetriNet]: 242 programPoint places, 2 predicate places. [2024-11-22 17:52:32,049 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 239 transitions, 504 flow [2024-11-22 17:52:32,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 204.5) internal successors, (1227), 6 states have internal predecessors, (1227), 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) [2024-11-22 17:52:32,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:32,050 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:32,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 17:52:32,050 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:32,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:32,051 INFO L85 PathProgramCache]: Analyzing trace with hash -296614280, now seen corresponding path program 1 times [2024-11-22 17:52:32,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:32,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776543106] [2024-11-22 17:52:32,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:32,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:32,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:32,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:32,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776543106] [2024-11-22 17:52:32,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776543106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:32,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:32,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:52:32,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481425734] [2024-11-22 17:52:32,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:32,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:32,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:32,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:32,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:32,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 260 [2024-11-22 17:52:32,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 239 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 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) [2024-11-22 17:52:32,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:32,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 260 [2024-11-22 17:52:32,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:32,640 INFO L124 PetriNetUnfolderBase]: 938/4718 cut-off events. [2024-11-22 17:52:32,640 INFO L125 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2024-11-22 17:52:32,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6302 conditions, 4718 events. 938/4718 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 44976 event pairs, 334 based on Foata normal form. 1/4238 useless extension candidates. Maximal degree in co-relation 810. Up to 1404 conditions per place. [2024-11-22 17:52:32,666 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 31 selfloop transitions, 2 changer transitions 0/246 dead transitions. [2024-11-22 17:52:32,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 246 transitions, 586 flow [2024-11-22 17:52:32,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:32,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:32,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 679 transitions. [2024-11-22 17:52:32,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8705128205128205 [2024-11-22 17:52:32,668 INFO L175 Difference]: Start difference. First operand has 244 places, 239 transitions, 504 flow. Second operand 3 states and 679 transitions. [2024-11-22 17:52:32,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 246 transitions, 586 flow [2024-11-22 17:52:32,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 246 transitions, 574 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 17:52:32,671 INFO L231 Difference]: Finished difference. Result has 242 places, 240 transitions, 506 flow [2024-11-22 17:52:32,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=506, PETRI_PLACES=242, PETRI_TRANSITIONS=240} [2024-11-22 17:52:32,672 INFO L277 CegarLoopForPetriNet]: 242 programPoint places, 0 predicate places. [2024-11-22 17:52:32,673 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 240 transitions, 506 flow [2024-11-22 17:52:32,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 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) [2024-11-22 17:52:32,673 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:32,673 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:32,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:52:32,673 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:32,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:32,674 INFO L85 PathProgramCache]: Analyzing trace with hash 605204743, now seen corresponding path program 1 times [2024-11-22 17:52:32,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:32,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055255871] [2024-11-22 17:52:32,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:32,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:32,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:32,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:32,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055255871] [2024-11-22 17:52:32,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055255871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:32,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:32,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:52:32,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218735943] [2024-11-22 17:52:32,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:32,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:32,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:32,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:32,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:32,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 260 [2024-11-22 17:52:32,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 240 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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) [2024-11-22 17:52:32,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:32,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 260 [2024-11-22 17:52:32,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:34,423 INFO L124 PetriNetUnfolderBase]: 4720/15525 cut-off events. [2024-11-22 17:52:34,424 INFO L125 PetriNetUnfolderBase]: For 453/453 co-relation queries the response was YES. [2024-11-22 17:52:34,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22832 conditions, 15525 events. 4720/15525 cut-off events. For 453/453 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 173621 event pairs, 1586 based on Foata normal form. 0/13732 useless extension candidates. Maximal degree in co-relation 22721. Up to 3665 conditions per place. [2024-11-22 17:52:34,507 INFO L140 encePairwiseOnDemand]: 241/260 looper letters, 58 selfloop transitions, 14 changer transitions 0/273 dead transitions. [2024-11-22 17:52:34,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 273 transitions, 727 flow [2024-11-22 17:52:34,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:34,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:34,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2024-11-22 17:52:34,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8756410256410256 [2024-11-22 17:52:34,509 INFO L175 Difference]: Start difference. First operand has 242 places, 240 transitions, 506 flow. Second operand 3 states and 683 transitions. [2024-11-22 17:52:34,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 273 transitions, 727 flow [2024-11-22 17:52:34,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 273 transitions, 725 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:52:34,513 INFO L231 Difference]: Finished difference. Result has 245 places, 254 transitions, 626 flow [2024-11-22 17:52:34,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=626, PETRI_PLACES=245, PETRI_TRANSITIONS=254} [2024-11-22 17:52:34,514 INFO L277 CegarLoopForPetriNet]: 242 programPoint places, 3 predicate places. [2024-11-22 17:52:34,515 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 254 transitions, 626 flow [2024-11-22 17:52:34,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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) [2024-11-22 17:52:34,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:34,515 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:34,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:52:34,516 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:34,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:34,516 INFO L85 PathProgramCache]: Analyzing trace with hash -589679511, now seen corresponding path program 1 times [2024-11-22 17:52:34,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:34,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867186056] [2024-11-22 17:52:34,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:34,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:34,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:34,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867186056] [2024-11-22 17:52:34,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867186056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:34,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:34,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:52:34,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464254588] [2024-11-22 17:52:34,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:34,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:34,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:34,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:34,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:34,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 260 [2024-11-22 17:52:34,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 254 transitions, 626 flow. Second operand has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 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) [2024-11-22 17:52:34,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:34,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 260 [2024-11-22 17:52:34,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:36,972 INFO L124 PetriNetUnfolderBase]: 4870/17918 cut-off events. [2024-11-22 17:52:36,972 INFO L125 PetriNetUnfolderBase]: For 4444/4604 co-relation queries the response was YES. [2024-11-22 17:52:37,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29422 conditions, 17918 events. 4870/17918 cut-off events. For 4444/4604 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 213661 event pairs, 2423 based on Foata normal form. 47/16111 useless extension candidates. Maximal degree in co-relation 27913. Up to 6155 conditions per place. [2024-11-22 17:52:37,106 INFO L140 encePairwiseOnDemand]: 251/260 looper letters, 52 selfloop transitions, 14 changer transitions 0/278 dead transitions. [2024-11-22 17:52:37,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 278 transitions, 844 flow [2024-11-22 17:52:37,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:37,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:37,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 677 transitions. [2024-11-22 17:52:37,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.867948717948718 [2024-11-22 17:52:37,109 INFO L175 Difference]: Start difference. First operand has 245 places, 254 transitions, 626 flow. Second operand 3 states and 677 transitions. [2024-11-22 17:52:37,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 278 transitions, 844 flow [2024-11-22 17:52:37,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 278 transitions, 806 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:52:37,122 INFO L231 Difference]: Finished difference. Result has 247 places, 266 transitions, 724 flow [2024-11-22 17:52:37,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=247, PETRI_TRANSITIONS=266} [2024-11-22 17:52:37,123 INFO L277 CegarLoopForPetriNet]: 242 programPoint places, 5 predicate places. [2024-11-22 17:52:37,123 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 266 transitions, 724 flow [2024-11-22 17:52:37,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 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) [2024-11-22 17:52:37,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:37,124 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:37,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 17:52:37,124 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:37,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:37,124 INFO L85 PathProgramCache]: Analyzing trace with hash -2042612567, now seen corresponding path program 1 times [2024-11-22 17:52:37,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:37,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624970106] [2024-11-22 17:52:37,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:37,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:37,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:37,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:37,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624970106] [2024-11-22 17:52:37,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624970106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:52:37,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307437846] [2024-11-22 17:52:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:37,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:52:37,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:52:37,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:52:37,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 17:52:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:37,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 17:52:37,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:52:37,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 17:52:37,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 17:52:37,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307437846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:37,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 17:52:37,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 17:52:37,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840807470] [2024-11-22 17:52:37,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:37,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:37,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:37,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:37,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:52:37,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 260 [2024-11-22 17:52:37,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 266 transitions, 724 flow. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2024-11-22 17:52:37,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:37,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 260 [2024-11-22 17:52:37,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:40,248 INFO L124 PetriNetUnfolderBase]: 5785/28598 cut-off events. [2024-11-22 17:52:40,248 INFO L125 PetriNetUnfolderBase]: For 3113/4774 co-relation queries the response was YES. [2024-11-22 17:52:40,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42180 conditions, 28598 events. 5785/28598 cut-off events. For 3113/4774 co-relation queries the response was YES. Maximal size of possible extension queue 777. Compared 390318 event pairs, 2168 based on Foata normal form. 123/25741 useless extension candidates. Maximal degree in co-relation 39840. Up to 3472 conditions per place. [2024-11-22 17:52:40,409 INFO L140 encePairwiseOnDemand]: 256/260 looper letters, 42 selfloop transitions, 3 changer transitions 0/285 dead transitions. [2024-11-22 17:52:40,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 285 transitions, 858 flow [2024-11-22 17:52:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:40,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 691 transitions. [2024-11-22 17:52:40,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8858974358974359 [2024-11-22 17:52:40,415 INFO L175 Difference]: Start difference. First operand has 247 places, 266 transitions, 724 flow. Second operand 3 states and 691 transitions. [2024-11-22 17:52:40,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 285 transitions, 858 flow [2024-11-22 17:52:40,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 285 transitions, 830 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:52:40,431 INFO L231 Difference]: Finished difference. Result has 249 places, 268 transitions, 718 flow [2024-11-22 17:52:40,431 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=266, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=249, PETRI_TRANSITIONS=268} [2024-11-22 17:52:40,432 INFO L277 CegarLoopForPetriNet]: 242 programPoint places, 7 predicate places. [2024-11-22 17:52:40,432 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 268 transitions, 718 flow [2024-11-22 17:52:40,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2024-11-22 17:52:40,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:40,433 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:40,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 17:52:40,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 17:52:40,639 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:40,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:40,640 INFO L85 PathProgramCache]: Analyzing trace with hash -192456045, now seen corresponding path program 1 times [2024-11-22 17:52:40,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:40,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528643570] [2024-11-22 17:52:40,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:40,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:40,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:40,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528643570] [2024-11-22 17:52:40,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528643570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:52:40,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568173535] [2024-11-22 17:52:40,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:40,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:52:40,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:52:40,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:52:40,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 17:52:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:40,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 17:52:40,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:52:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 17:52:40,869 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 17:52:40,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568173535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:40,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 17:52:40,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-22 17:52:40,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15997691] [2024-11-22 17:52:40,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:40,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:40,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:40,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:40,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:52:40,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 260 [2024-11-22 17:52:40,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 268 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2024-11-22 17:52:40,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:40,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 260 [2024-11-22 17:52:40,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:43,994 INFO L124 PetriNetUnfolderBase]: 6115/29136 cut-off events. [2024-11-22 17:52:43,995 INFO L125 PetriNetUnfolderBase]: For 5727/6149 co-relation queries the response was YES. [2024-11-22 17:52:44,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45034 conditions, 29136 events. 6115/29136 cut-off events. For 5727/6149 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 391575 event pairs, 3054 based on Foata normal form. 130/25992 useless extension candidates. Maximal degree in co-relation 42646. Up to 6042 conditions per place. [2024-11-22 17:52:44,180 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 42 selfloop transitions, 2 changer transitions 0/284 dead transitions. [2024-11-22 17:52:44,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 284 transitions, 846 flow [2024-11-22 17:52:44,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:44,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:44,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 688 transitions. [2024-11-22 17:52:44,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.882051282051282 [2024-11-22 17:52:44,182 INFO L175 Difference]: Start difference. First operand has 249 places, 268 transitions, 718 flow. Second operand 3 states and 688 transitions. [2024-11-22 17:52:44,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 284 transitions, 846 flow [2024-11-22 17:52:44,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 284 transitions, 840 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:52:44,202 INFO L231 Difference]: Finished difference. Result has 250 places, 269 transitions, 726 flow [2024-11-22 17:52:44,203 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=726, PETRI_PLACES=250, PETRI_TRANSITIONS=269} [2024-11-22 17:52:44,204 INFO L277 CegarLoopForPetriNet]: 242 programPoint places, 8 predicate places. [2024-11-22 17:52:44,204 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 269 transitions, 726 flow [2024-11-22 17:52:44,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 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) [2024-11-22 17:52:44,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:44,205 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:44,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 17:52:44,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-22 17:52:44,406 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:44,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:44,406 INFO L85 PathProgramCache]: Analyzing trace with hash 551411013, now seen corresponding path program 1 times [2024-11-22 17:52:44,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:44,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459313258] [2024-11-22 17:52:44,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:44,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:44,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:44,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:44,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459313258] [2024-11-22 17:52:44,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459313258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:52:44,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005742708] [2024-11-22 17:52:44,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:44,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:52:44,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:52:44,565 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:52:44,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 17:52:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:44,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 17:52:44,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:52:44,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:44,735 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:52:44,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:44,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005742708] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:52:44,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:52:44,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 17:52:44,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241529111] [2024-11-22 17:52:44,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:52:44,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:52:44,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:44,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:52:44,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:52:44,831 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 260 [2024-11-22 17:52:44,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 269 transitions, 726 flow. Second operand has 10 states, 10 states have (on average 214.3) internal successors, (2143), 10 states have internal predecessors, (2143), 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) [2024-11-22 17:52:44,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:44,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 260 [2024-11-22 17:52:44,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:45,209 INFO L124 PetriNetUnfolderBase]: 754/3735 cut-off events. [2024-11-22 17:52:45,209 INFO L125 PetriNetUnfolderBase]: For 350/384 co-relation queries the response was YES. [2024-11-22 17:52:45,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5638 conditions, 3735 events. 754/3735 cut-off events. For 350/384 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 33823 event pairs, 64 based on Foata normal form. 108/3588 useless extension candidates. Maximal degree in co-relation 5628. Up to 470 conditions per place. [2024-11-22 17:52:45,228 INFO L140 encePairwiseOnDemand]: 255/260 looper letters, 72 selfloop transitions, 7 changer transitions 0/263 dead transitions. [2024-11-22 17:52:45,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 263 transitions, 810 flow [2024-11-22 17:52:45,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:52:45,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 17:52:45,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1989 transitions. [2024-11-22 17:52:45,231 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.85 [2024-11-22 17:52:45,231 INFO L175 Difference]: Start difference. First operand has 250 places, 269 transitions, 726 flow. Second operand 9 states and 1989 transitions. [2024-11-22 17:52:45,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 263 transitions, 810 flow [2024-11-22 17:52:45,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 263 transitions, 810 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:52:45,236 INFO L231 Difference]: Finished difference. Result has 206 places, 207 transitions, 554 flow [2024-11-22 17:52:45,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=554, PETRI_PLACES=206, PETRI_TRANSITIONS=207} [2024-11-22 17:52:45,237 INFO L277 CegarLoopForPetriNet]: 242 programPoint places, -36 predicate places. [2024-11-22 17:52:45,237 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 207 transitions, 554 flow [2024-11-22 17:52:45,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 214.3) internal successors, (2143), 10 states have internal predecessors, (2143), 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) [2024-11-22 17:52:45,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:45,238 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:45,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 17:52:45,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:52:45,442 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:45,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:45,443 INFO L85 PathProgramCache]: Analyzing trace with hash -2083425951, now seen corresponding path program 1 times [2024-11-22 17:52:45,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:45,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182560375] [2024-11-22 17:52:45,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:45,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:45,485 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 17:52:45,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:45,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182560375] [2024-11-22 17:52:45,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182560375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:45,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:45,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:52:45,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331273427] [2024-11-22 17:52:45,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:45,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:45,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:45,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:45,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:45,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 260 [2024-11-22 17:52:45,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 207 transitions, 554 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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) [2024-11-22 17:52:45,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:45,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 260 [2024-11-22 17:52:45,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:45,637 INFO L124 PetriNetUnfolderBase]: 260/1348 cut-off events. [2024-11-22 17:52:45,637 INFO L125 PetriNetUnfolderBase]: For 451/472 co-relation queries the response was YES. [2024-11-22 17:52:45,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2396 conditions, 1348 events. 260/1348 cut-off events. For 451/472 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8695 event pairs, 132 based on Foata normal form. 7/1263 useless extension candidates. Maximal degree in co-relation 2385. Up to 459 conditions per place. [2024-11-22 17:52:45,645 INFO L140 encePairwiseOnDemand]: 252/260 looper letters, 42 selfloop transitions, 12 changer transitions 0/221 dead transitions. [2024-11-22 17:52:45,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 221 transitions, 706 flow [2024-11-22 17:52:45,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:45,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:45,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 663 transitions. [2024-11-22 17:52:45,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.85 [2024-11-22 17:52:45,648 INFO L175 Difference]: Start difference. First operand has 206 places, 207 transitions, 554 flow. Second operand 3 states and 663 transitions. [2024-11-22 17:52:45,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 221 transitions, 706 flow [2024-11-22 17:52:45,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 221 transitions, 691 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-22 17:52:45,652 INFO L231 Difference]: Finished difference. Result has 205 places, 215 transitions, 637 flow [2024-11-22 17:52:45,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=637, PETRI_PLACES=205, PETRI_TRANSITIONS=215} [2024-11-22 17:52:45,653 INFO L277 CegarLoopForPetriNet]: 242 programPoint places, -37 predicate places. [2024-11-22 17:52:45,653 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 215 transitions, 637 flow [2024-11-22 17:52:45,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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) [2024-11-22 17:52:45,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:45,654 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:45,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 17:52:45,654 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:45,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:45,655 INFO L85 PathProgramCache]: Analyzing trace with hash 770767895, now seen corresponding path program 1 times [2024-11-22 17:52:45,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:45,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502585668] [2024-11-22 17:52:45,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:45,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:45,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:45,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:45,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502585668] [2024-11-22 17:52:45,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502585668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:45,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:45,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:52:45,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028796480] [2024-11-22 17:52:45,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:45,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:45,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:45,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:45,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:45,781 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 260 [2024-11-22 17:52:45,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 215 transitions, 637 flow. Second operand has 3 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 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) [2024-11-22 17:52:45,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:45,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 260 [2024-11-22 17:52:45,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:45,954 INFO L124 PetriNetUnfolderBase]: 291/1420 cut-off events. [2024-11-22 17:52:45,955 INFO L125 PetriNetUnfolderBase]: For 1126/1161 co-relation queries the response was YES. [2024-11-22 17:52:45,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2850 conditions, 1420 events. 291/1420 cut-off events. For 1126/1161 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9373 event pairs, 134 based on Foata normal form. 9/1353 useless extension candidates. Maximal degree in co-relation 2839. Up to 501 conditions per place. [2024-11-22 17:52:45,967 INFO L140 encePairwiseOnDemand]: 252/260 looper letters, 49 selfloop transitions, 12 changer transitions 0/230 dead transitions. [2024-11-22 17:52:45,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 230 transitions, 826 flow [2024-11-22 17:52:45,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:45,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:45,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 664 transitions. [2024-11-22 17:52:45,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8512820512820513 [2024-11-22 17:52:45,969 INFO L175 Difference]: Start difference. First operand has 205 places, 215 transitions, 637 flow. Second operand 3 states and 664 transitions. [2024-11-22 17:52:45,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 230 transitions, 826 flow [2024-11-22 17:52:45,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 230 transitions, 798 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:52:45,974 INFO L231 Difference]: Finished difference. Result has 207 places, 223 transitions, 723 flow [2024-11-22 17:52:45,975 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=723, PETRI_PLACES=207, PETRI_TRANSITIONS=223} [2024-11-22 17:52:45,976 INFO L277 CegarLoopForPetriNet]: 242 programPoint places, -35 predicate places. [2024-11-22 17:52:45,976 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 223 transitions, 723 flow [2024-11-22 17:52:45,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.66666666666666) internal successors, (635), 3 states have internal predecessors, (635), 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) [2024-11-22 17:52:45,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:45,977 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:45,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 17:52:45,978 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:45,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:45,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1549554953, now seen corresponding path program 1 times [2024-11-22 17:52:45,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:45,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074413588] [2024-11-22 17:52:45,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:45,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:52:46,006 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:52:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:52:46,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:52:46,047 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:52:46,048 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-22 17:52:46,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-22 17:52:46,048 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-22 17:52:46,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-22 17:52:46,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-22 17:52:46,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-22 17:52:46,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-22 17:52:46,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-22 17:52:46,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-22 17:52:46,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-22 17:52:46,049 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-22 17:52:46,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-22 17:52:46,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-22 17:52:46,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-22 17:52:46,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-22 17:52:46,050 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-22 17:52:46,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 17:52:46,050 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:46,052 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 17:52:46,052 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-22 17:52:46,083 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-22 17:52:46,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 286 places, 309 transitions, 645 flow [2024-11-22 17:52:46,173 INFO L124 PetriNetUnfolderBase]: 66/617 cut-off events. [2024-11-22 17:52:46,173 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-22 17:52:46,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 617 events. 66/617 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2145 event pairs, 1 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 434. Up to 16 conditions per place. [2024-11-22 17:52:46,179 INFO L82 GeneralOperation]: Start removeDead. Operand has 286 places, 309 transitions, 645 flow [2024-11-22 17:52:46,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 286 places, 309 transitions, 645 flow [2024-11-22 17:52:46,186 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:52:46,187 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;@d3c865c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:52:46,187 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-22 17:52:46,194 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:52:46,194 INFO L124 PetriNetUnfolderBase]: 3/110 cut-off events. [2024-11-22 17:52:46,194 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:52:46,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:46,194 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:46,195 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 17:52:46,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:46,195 INFO L85 PathProgramCache]: Analyzing trace with hash -883986985, now seen corresponding path program 1 times [2024-11-22 17:52:46,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:46,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55333501] [2024-11-22 17:52:46,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:46,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:46,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:46,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:46,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55333501] [2024-11-22 17:52:46,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55333501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:46,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:46,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:52:46,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124261580] [2024-11-22 17:52:46,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:46,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:52:46,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:46,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:52:46,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:52:46,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 309 [2024-11-22 17:52:46,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 309 transitions, 645 flow. Second operand has 6 states, 6 states have (on average 239.5) internal successors, (1437), 6 states have internal predecessors, (1437), 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) [2024-11-22 17:52:46,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:46,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 309 [2024-11-22 17:52:46,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:54,415 INFO L124 PetriNetUnfolderBase]: 20344/68962 cut-off events. [2024-11-22 17:52:54,415 INFO L125 PetriNetUnfolderBase]: For 1107/1107 co-relation queries the response was YES. [2024-11-22 17:52:54,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97569 conditions, 68962 events. 20344/68962 cut-off events. For 1107/1107 co-relation queries the response was YES. Maximal size of possible extension queue 1524. Compared 949215 event pairs, 6970 based on Foata normal form. 14560/76720 useless extension candidates. Maximal degree in co-relation 11497. Up to 20303 conditions per place. [2024-11-22 17:52:54,848 INFO L140 encePairwiseOnDemand]: 279/309 looper letters, 112 selfloop transitions, 5 changer transitions 0/354 dead transitions. [2024-11-22 17:52:54,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 354 transitions, 969 flow [2024-11-22 17:52:54,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:52:54,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:52:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1642 transitions. [2024-11-22 17:52:54,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8856526429341963 [2024-11-22 17:52:54,851 INFO L175 Difference]: Start difference. First operand has 286 places, 309 transitions, 645 flow. Second operand 6 states and 1642 transitions. [2024-11-22 17:52:54,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 354 transitions, 969 flow [2024-11-22 17:52:54,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 354 transitions, 969 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:52:54,856 INFO L231 Difference]: Finished difference. Result has 288 places, 282 transitions, 601 flow [2024-11-22 17:52:54,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=601, PETRI_PLACES=288, PETRI_TRANSITIONS=282} [2024-11-22 17:52:54,857 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, 2 predicate places. [2024-11-22 17:52:54,857 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 282 transitions, 601 flow [2024-11-22 17:52:54,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.5) internal successors, (1437), 6 states have internal predecessors, (1437), 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) [2024-11-22 17:52:54,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:54,858 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:54,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 17:52:54,858 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 17:52:54,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:54,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1147775768, now seen corresponding path program 1 times [2024-11-22 17:52:54,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:54,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229657801] [2024-11-22 17:52:54,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:54,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:54,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:54,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:54,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229657801] [2024-11-22 17:52:54,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229657801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:54,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:54,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:52:54,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749997098] [2024-11-22 17:52:54,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:54,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:54,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:54,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:54,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:54,903 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 309 [2024-11-22 17:52:54,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 282 transitions, 601 flow. Second operand has 3 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 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) [2024-11-22 17:52:54,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:54,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 309 [2024-11-22 17:52:54,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:59,022 INFO L124 PetriNetUnfolderBase]: 10246/37004 cut-off events. [2024-11-22 17:52:59,023 INFO L125 PetriNetUnfolderBase]: For 1825/1825 co-relation queries the response was YES. [2024-11-22 17:52:59,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52095 conditions, 37004 events. 10246/37004 cut-off events. For 1825/1825 co-relation queries the response was YES. Maximal size of possible extension queue 879. Compared 477034 event pairs, 5617 based on Foata normal form. 1/33441 useless extension candidates. Maximal degree in co-relation 6794. Up to 14009 conditions per place. [2024-11-22 17:52:59,466 INFO L140 encePairwiseOnDemand]: 306/309 looper letters, 39 selfloop transitions, 2 changer transitions 0/289 dead transitions. [2024-11-22 17:52:59,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 289 transitions, 699 flow [2024-11-22 17:52:59,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:59,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:59,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 792 transitions. [2024-11-22 17:52:59,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8543689320388349 [2024-11-22 17:52:59,468 INFO L175 Difference]: Start difference. First operand has 288 places, 282 transitions, 601 flow. Second operand 3 states and 792 transitions. [2024-11-22 17:52:59,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 289 transitions, 699 flow [2024-11-22 17:52:59,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 289 transitions, 687 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-22 17:52:59,472 INFO L231 Difference]: Finished difference. Result has 286 places, 283 transitions, 603 flow [2024-11-22 17:52:59,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=603, PETRI_PLACES=286, PETRI_TRANSITIONS=283} [2024-11-22 17:52:59,473 INFO L277 CegarLoopForPetriNet]: 286 programPoint places, 0 predicate places. [2024-11-22 17:52:59,473 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 283 transitions, 603 flow [2024-11-22 17:52:59,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 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) [2024-11-22 17:52:59,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:59,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:52:59,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 17:52:59,474 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-22 17:52:59,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:59,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1377695253, now seen corresponding path program 1 times [2024-11-22 17:52:59,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:59,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597790810] [2024-11-22 17:52:59,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:59,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:59,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:59,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:59,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597790810] [2024-11-22 17:52:59,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597790810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:59,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:59,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 17:52:59,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534841484] [2024-11-22 17:52:59,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:59,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:59,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:59,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:59,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:59,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 309 [2024-11-22 17:52:59,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 283 transitions, 603 flow. Second operand has 3 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 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) [2024-11-22 17:52:59,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:59,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 309 [2024-11-22 17:52:59,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand