./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid.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 da100b5cb95d7325be7357bb16aa7526e66fa3d3a90ac0a0850ac9736c0f81ee --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:43:30,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:43:30,880 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:43:30,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:43:30,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:43:30,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:43:30,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:43:30,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:43:30,945 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:43:30,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:43:30,946 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:43:30,946 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:43:30,947 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:43:30,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:43:30,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:43:30,949 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:43:30,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:43:30,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:43:30,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:43:30,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:43:30,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:43:30,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:43:30,955 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:43:30,955 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:43:30,956 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:43:30,956 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:43:30,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:43:30,957 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:43:30,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:43:30,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:43:30,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:43:30,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:43:30,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:43:30,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:43:30,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:43:30,959 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:43:30,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:43:30,959 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:43:30,970 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:43:30,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:43:30,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:43:30,971 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da100b5cb95d7325be7357bb16aa7526e66fa3d3a90ac0a0850ac9736c0f81ee [2024-11-12 12:43:31,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:43:31,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:43:31,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:43:31,252 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:43:31,253 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:43:31,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid.i [2024-11-12 12:43:32,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:43:33,043 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:43:33,045 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid.i [2024-11-12 12:43:33,065 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b1aac93/6e4cb72b994b45b789b666253f938a90/FLAGfd7409f69 [2024-11-12 12:43:33,317 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69b1aac93/6e4cb72b994b45b789b666253f938a90 [2024-11-12 12:43:33,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:43:33,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:43:33,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:43:33,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:43:33,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:43:33,333 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:33" (1/1) ... [2024-11-12 12:43:33,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e873b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:33, skipping insertion in model container [2024-11-12 12:43:33,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:33" (1/1) ... [2024-11-12 12:43:33,388 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:43:33,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:43:33,919 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:43:33,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:43:34,048 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:43:34,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34 WrapperNode [2024-11-12 12:43:34,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:43:34,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:43:34,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:43:34,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:43:34,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34" (1/1) ... [2024-11-12 12:43:34,085 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34" (1/1) ... [2024-11-12 12:43:34,114 INFO L138 Inliner]: procedures = 263, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2024-11-12 12:43:34,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:43:34,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:43:34,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:43:34,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:43:34,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34" (1/1) ... [2024-11-12 12:43:34,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34" (1/1) ... [2024-11-12 12:43:34,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34" (1/1) ... [2024-11-12 12:43:34,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34" (1/1) ... [2024-11-12 12:43:34,147 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34" (1/1) ... [2024-11-12 12:43:34,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34" (1/1) ... [2024-11-12 12:43:34,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34" (1/1) ... [2024-11-12 12:43:34,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34" (1/1) ... [2024-11-12 12:43:34,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:43:34,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:43:34,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:43:34,167 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:43:34,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34" (1/1) ... [2024-11-12 12:43:34,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:43:34,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:43:34,212 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) [2024-11-12 12:43:34,216 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 [2024-11-12 12:43:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-12 12:43:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:43:34,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:43:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:43:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 12:43:34,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-12 12:43:34,269 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-12 12:43:34,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-12 12:43:34,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:43:34,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:43:34,270 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:43:34,425 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:43:34,429 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:43:34,729 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:43:34,731 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:43:34,746 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:43:34,747 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 12:43:34,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:34 BoogieIcfgContainer [2024-11-12 12:43:34,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:43:34,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:43:34,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:43:34,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:43:34,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:43:33" (1/3) ... [2024-11-12 12:43:34,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb5085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:34, skipping insertion in model container [2024-11-12 12:43:34,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:34" (2/3) ... [2024-11-12 12:43:34,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb5085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:34, skipping insertion in model container [2024-11-12 12:43:34,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:34" (3/3) ... [2024-11-12 12:43:34,781 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-struct-tid.i [2024-11-12 12:43:34,823 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:43:34,825 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-12 12:43:34,825 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:43:34,902 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 12:43:34,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 110 transitions, 227 flow [2024-11-12 12:43:35,006 INFO L124 PetriNetUnfolderBase]: 6/160 cut-off events. [2024-11-12 12:43:35,006 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:43:35,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 160 events. 6/160 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 223 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 73. Up to 4 conditions per place. [2024-11-12 12:43:35,012 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 110 transitions, 227 flow [2024-11-12 12:43:35,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 110 transitions, 227 flow [2024-11-12 12:43:35,026 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:43:35,034 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;@54912e1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:43:35,035 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-12 12:43:35,048 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:43:35,049 INFO L124 PetriNetUnfolderBase]: 3/47 cut-off events. [2024-11-12 12:43:35,049 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:43:35,049 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:35,050 INFO L206 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] [2024-11-12 12:43:35,051 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:43:35,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:35,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1099474648, now seen corresponding path program 1 times [2024-11-12 12:43:35,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:35,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438533082] [2024-11-12 12:43:35,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:35,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:35,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:35,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:35,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438533082] [2024-11-12 12:43:35,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438533082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:35,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:35,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:35,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634455039] [2024-11-12 12:43:35,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:35,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:43:35,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:35,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:43:35,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:43:35,700 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 110 [2024-11-12 12:43:35,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 110 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 95.4) internal successors, (477), 5 states have internal predecessors, (477), 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) [2024-11-12 12:43:35,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:35,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 110 [2024-11-12 12:43:35,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:35,775 INFO L124 PetriNetUnfolderBase]: 1/161 cut-off events. [2024-11-12 12:43:35,775 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 12:43:35,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 161 events. 1/161 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 178 event pairs, 0 based on Foata normal form. 2/152 useless extension candidates. Maximal degree in co-relation 39. Up to 16 conditions per place. [2024-11-12 12:43:35,777 INFO L140 encePairwiseOnDemand]: 99/110 looper letters, 11 selfloop transitions, 2 changer transitions 6/112 dead transitions. [2024-11-12 12:43:35,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 112 transitions, 267 flow [2024-11-12 12:43:35,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:35,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:35,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 588 transitions. [2024-11-12 12:43:35,801 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8909090909090909 [2024-11-12 12:43:35,805 INFO L175 Difference]: Start difference. First operand has 109 places, 110 transitions, 227 flow. Second operand 6 states and 588 transitions. [2024-11-12 12:43:35,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 112 transitions, 267 flow [2024-11-12 12:43:35,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 112 transitions, 267 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:35,818 INFO L231 Difference]: Finished difference. Result has 118 places, 106 transitions, 237 flow [2024-11-12 12:43:35,822 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=118, PETRI_TRANSITIONS=106} [2024-11-12 12:43:35,827 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 9 predicate places. [2024-11-12 12:43:35,827 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 106 transitions, 237 flow [2024-11-12 12:43:35,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 95.4) internal successors, (477), 5 states have internal predecessors, (477), 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) [2024-11-12 12:43:35,828 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:35,829 INFO L206 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] [2024-11-12 12:43:35,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:43:35,829 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:43:35,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:35,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1971613969, now seen corresponding path program 1 times [2024-11-12 12:43:35,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:35,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292072200] [2024-11-12 12:43:35,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:35,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:36,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:36,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292072200] [2024-11-12 12:43:36,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292072200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:36,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:36,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:36,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413995139] [2024-11-12 12:43:36,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:36,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:43:36,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:36,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:43:36,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:43:36,737 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 110 [2024-11-12 12:43:36,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 106 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 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) [2024-11-12 12:43:36,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:36,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 110 [2024-11-12 12:43:36,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:36,927 INFO L124 PetriNetUnfolderBase]: 106/500 cut-off events. [2024-11-12 12:43:36,928 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-12 12:43:36,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 500 events. 106/500 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2454 event pairs, 68 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 692. Up to 240 conditions per place. [2024-11-12 12:43:36,934 INFO L140 encePairwiseOnDemand]: 99/110 looper letters, 35 selfloop transitions, 22 changer transitions 0/127 dead transitions. [2024-11-12 12:43:36,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 127 transitions, 393 flow [2024-11-12 12:43:36,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:36,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 484 transitions. [2024-11-12 12:43:36,939 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-11-12 12:43:36,939 INFO L175 Difference]: Start difference. First operand has 118 places, 106 transitions, 237 flow. Second operand 6 states and 484 transitions. [2024-11-12 12:43:36,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 127 transitions, 393 flow [2024-11-12 12:43:36,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 127 transitions, 379 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-12 12:43:36,945 INFO L231 Difference]: Finished difference. Result has 119 places, 127 transitions, 373 flow [2024-11-12 12:43:36,946 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=373, PETRI_PLACES=119, PETRI_TRANSITIONS=127} [2024-11-12 12:43:36,947 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 10 predicate places. [2024-11-12 12:43:36,947 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 127 transitions, 373 flow [2024-11-12 12:43:36,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 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) [2024-11-12 12:43:36,947 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:36,948 INFO L206 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] [2024-11-12 12:43:36,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:43:36,948 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:43:36,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:36,951 INFO L85 PathProgramCache]: Analyzing trace with hash -273716679, now seen corresponding path program 1 times [2024-11-12 12:43:36,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:36,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070278038] [2024-11-12 12:43:36,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:36,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:37,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:37,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:37,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070278038] [2024-11-12 12:43:37,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070278038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:37,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:37,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:37,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482640787] [2024-11-12 12:43:37,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:37,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:43:37,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:37,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:43:37,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:43:37,551 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 110 [2024-11-12 12:43:37,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 127 transitions, 373 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2024-11-12 12:43:37,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:37,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 110 [2024-11-12 12:43:37,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:37,660 INFO L124 PetriNetUnfolderBase]: 125/565 cut-off events. [2024-11-12 12:43:37,660 INFO L125 PetriNetUnfolderBase]: For 108/114 co-relation queries the response was YES. [2024-11-12 12:43:37,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1130 conditions, 565 events. 125/565 cut-off events. For 108/114 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2794 event pairs, 55 based on Foata normal form. 0/513 useless extension candidates. Maximal degree in co-relation 998. Up to 268 conditions per place. [2024-11-12 12:43:37,665 INFO L140 encePairwiseOnDemand]: 99/110 looper letters, 52 selfloop transitions, 22 changer transitions 0/148 dead transitions. [2024-11-12 12:43:37,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 148 transitions, 595 flow [2024-11-12 12:43:37,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:37,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 494 transitions. [2024-11-12 12:43:37,667 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7484848484848485 [2024-11-12 12:43:37,668 INFO L175 Difference]: Start difference. First operand has 119 places, 127 transitions, 373 flow. Second operand 6 states and 494 transitions. [2024-11-12 12:43:37,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 148 transitions, 595 flow [2024-11-12 12:43:37,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 148 transitions, 595 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:37,673 INFO L231 Difference]: Finished difference. Result has 129 places, 148 transitions, 555 flow [2024-11-12 12:43:37,674 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=555, PETRI_PLACES=129, PETRI_TRANSITIONS=148} [2024-11-12 12:43:37,675 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 20 predicate places. [2024-11-12 12:43:37,675 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 148 transitions, 555 flow [2024-11-12 12:43:37,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 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) [2024-11-12 12:43:37,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:37,676 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:37,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:43:37,676 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:43:37,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:37,677 INFO L85 PathProgramCache]: Analyzing trace with hash -624886610, now seen corresponding path program 1 times [2024-11-12 12:43:37,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:37,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263790294] [2024-11-12 12:43:37,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:37,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:38,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:38,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:38,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263790294] [2024-11-12 12:43:38,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263790294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:38,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:38,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:38,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15906659] [2024-11-12 12:43:38,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:38,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:43:38,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:38,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:43:38,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:43:38,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 110 [2024-11-12 12:43:38,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 148 transitions, 555 flow. Second operand has 6 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 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) [2024-11-12 12:43:38,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:38,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 110 [2024-11-12 12:43:38,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:38,439 INFO L124 PetriNetUnfolderBase]: 283/933 cut-off events. [2024-11-12 12:43:38,440 INFO L125 PetriNetUnfolderBase]: For 443/479 co-relation queries the response was YES. [2024-11-12 12:43:38,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2306 conditions, 933 events. 283/933 cut-off events. For 443/479 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5323 event pairs, 47 based on Foata normal form. 0/871 useless extension candidates. Maximal degree in co-relation 2159. Up to 489 conditions per place. [2024-11-12 12:43:38,448 INFO L140 encePairwiseOnDemand]: 87/110 looper letters, 60 selfloop transitions, 90 changer transitions 7/229 dead transitions. [2024-11-12 12:43:38,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 229 transitions, 1163 flow [2024-11-12 12:43:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 557 transitions. [2024-11-12 12:43:38,450 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.843939393939394 [2024-11-12 12:43:38,451 INFO L175 Difference]: Start difference. First operand has 129 places, 148 transitions, 555 flow. Second operand 6 states and 557 transitions. [2024-11-12 12:43:38,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 229 transitions, 1163 flow [2024-11-12 12:43:38,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 229 transitions, 1125 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:38,460 INFO L231 Difference]: Finished difference. Result has 139 places, 222 transitions, 1239 flow [2024-11-12 12:43:38,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1239, PETRI_PLACES=139, PETRI_TRANSITIONS=222} [2024-11-12 12:43:38,462 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 30 predicate places. [2024-11-12 12:43:38,462 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 222 transitions, 1239 flow [2024-11-12 12:43:38,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.66666666666667) internal successors, (472), 6 states have internal predecessors, (472), 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) [2024-11-12 12:43:38,463 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:38,463 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:43:38,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:43:38,464 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:43:38,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:38,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1210714979, now seen corresponding path program 1 times [2024-11-12 12:43:38,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:38,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807857314] [2024-11-12 12:43:38,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:38,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:38,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:38,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:38,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807857314] [2024-11-12 12:43:38,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807857314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:38,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:38,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:38,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65268549] [2024-11-12 12:43:38,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:38,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:43:38,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:38,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:43:38,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:43:39,096 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 110 [2024-11-12 12:43:39,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 222 transitions, 1239 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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) [2024-11-12 12:43:39,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:39,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 110 [2024-11-12 12:43:39,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:39,300 INFO L124 PetriNetUnfolderBase]: 282/973 cut-off events. [2024-11-12 12:43:39,300 INFO L125 PetriNetUnfolderBase]: For 1088/1180 co-relation queries the response was YES. [2024-11-12 12:43:39,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3096 conditions, 973 events. 282/973 cut-off events. For 1088/1180 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6038 event pairs, 18 based on Foata normal form. 0/948 useless extension candidates. Maximal degree in co-relation 2922. Up to 400 conditions per place. [2024-11-12 12:43:39,310 INFO L140 encePairwiseOnDemand]: 94/110 looper letters, 125 selfloop transitions, 36 changer transitions 0/252 dead transitions. [2024-11-12 12:43:39,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 252 transitions, 1770 flow [2024-11-12 12:43:39,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:39,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2024-11-12 12:43:39,313 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7666666666666667 [2024-11-12 12:43:39,313 INFO L175 Difference]: Start difference. First operand has 139 places, 222 transitions, 1239 flow. Second operand 6 states and 506 transitions. [2024-11-12 12:43:39,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 252 transitions, 1770 flow [2024-11-12 12:43:39,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 252 transitions, 1734 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:39,329 INFO L231 Difference]: Finished difference. Result has 141 places, 251 transitions, 1589 flow [2024-11-12 12:43:39,329 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=1201, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1589, PETRI_PLACES=141, PETRI_TRANSITIONS=251} [2024-11-12 12:43:39,330 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 32 predicate places. [2024-11-12 12:43:39,330 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 251 transitions, 1589 flow [2024-11-12 12:43:39,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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) [2024-11-12 12:43:39,331 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:39,331 INFO L206 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] [2024-11-12 12:43:39,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:43:39,331 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:43:39,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:39,332 INFO L85 PathProgramCache]: Analyzing trace with hash 366262447, now seen corresponding path program 1 times [2024-11-12 12:43:39,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:39,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312466839] [2024-11-12 12:43:39,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:39,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:39,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:39,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:39,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312466839] [2024-11-12 12:43:39,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312466839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:39,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:39,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:43:39,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865864085] [2024-11-12 12:43:39,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:39,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:43:39,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:39,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:43:39,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:43:39,816 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 110 [2024-11-12 12:43:39,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 251 transitions, 1589 flow. Second operand has 6 states, 6 states have (on average 85.66666666666667) internal successors, (514), 6 states have internal predecessors, (514), 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) [2024-11-12 12:43:39,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:39,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 110 [2024-11-12 12:43:39,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:40,064 INFO L124 PetriNetUnfolderBase]: 324/1067 cut-off events. [2024-11-12 12:43:40,064 INFO L125 PetriNetUnfolderBase]: For 1949/2043 co-relation queries the response was YES. [2024-11-12 12:43:40,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3802 conditions, 1067 events. 324/1067 cut-off events. For 1949/2043 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6703 event pairs, 21 based on Foata normal form. 0/1053 useless extension candidates. Maximal degree in co-relation 3604. Up to 441 conditions per place. [2024-11-12 12:43:40,072 INFO L140 encePairwiseOnDemand]: 99/110 looper letters, 136 selfloop transitions, 37 changer transitions 29/291 dead transitions. [2024-11-12 12:43:40,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 291 transitions, 2350 flow [2024-11-12 12:43:40,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:43:40,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:43:40,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 544 transitions. [2024-11-12 12:43:40,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8242424242424242 [2024-11-12 12:43:40,075 INFO L175 Difference]: Start difference. First operand has 141 places, 251 transitions, 1589 flow. Second operand 6 states and 544 transitions. [2024-11-12 12:43:40,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 291 transitions, 2350 flow [2024-11-12 12:43:40,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 291 transitions, 2192 flow, removed 79 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:40,092 INFO L231 Difference]: Finished difference. Result has 151 places, 262 transitions, 1852 flow [2024-11-12 12:43:40,093 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=1495, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1852, PETRI_PLACES=151, PETRI_TRANSITIONS=262} [2024-11-12 12:43:40,094 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 42 predicate places. [2024-11-12 12:43:40,094 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 262 transitions, 1852 flow [2024-11-12 12:43:40,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.66666666666667) internal successors, (514), 6 states have internal predecessors, (514), 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) [2024-11-12 12:43:40,095 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:40,095 INFO L206 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] [2024-11-12 12:43:40,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:43:40,095 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:43:40,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:40,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1030629718, now seen corresponding path program 1 times [2024-11-12 12:43:40,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:40,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561081742] [2024-11-12 12:43:40,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:40,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:40,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:40,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:40,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561081742] [2024-11-12 12:43:40,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561081742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:40,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:40,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-12 12:43:40,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085427170] [2024-11-12 12:43:40,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:40,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 12:43:40,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:40,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 12:43:40,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-12 12:43:41,381 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 110 [2024-11-12 12:43:41,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 262 transitions, 1852 flow. Second operand has 14 states, 14 states have (on average 65.85714285714286) internal successors, (922), 14 states have internal predecessors, (922), 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) [2024-11-12 12:43:41,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:41,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 110 [2024-11-12 12:43:41,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:42,954 INFO L124 PetriNetUnfolderBase]: 405/1232 cut-off events. [2024-11-12 12:43:42,954 INFO L125 PetriNetUnfolderBase]: For 2566/2624 co-relation queries the response was YES. [2024-11-12 12:43:42,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4778 conditions, 1232 events. 405/1232 cut-off events. For 2566/2624 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 7787 event pairs, 23 based on Foata normal form. 38/1265 useless extension candidates. Maximal degree in co-relation 4652. Up to 329 conditions per place. [2024-11-12 12:43:42,967 INFO L140 encePairwiseOnDemand]: 85/110 looper letters, 206 selfloop transitions, 166 changer transitions 0/426 dead transitions. [2024-11-12 12:43:42,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 426 transitions, 3726 flow [2024-11-12 12:43:42,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-12 12:43:42,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-11-12 12:43:42,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 2510 transitions. [2024-11-12 12:43:42,974 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6338383838383839 [2024-11-12 12:43:42,974 INFO L175 Difference]: Start difference. First operand has 151 places, 262 transitions, 1852 flow. Second operand 36 states and 2510 transitions. [2024-11-12 12:43:42,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 426 transitions, 3726 flow [2024-11-12 12:43:42,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 426 transitions, 3642 flow, removed 42 selfloop flow, removed 0 redundant places. [2024-11-12 12:43:43,003 INFO L231 Difference]: Finished difference. Result has 183 places, 330 transitions, 2820 flow [2024-11-12 12:43:43,004 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=1768, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2820, PETRI_PLACES=183, PETRI_TRANSITIONS=330} [2024-11-12 12:43:43,005 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 74 predicate places. [2024-11-12 12:43:43,005 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 330 transitions, 2820 flow [2024-11-12 12:43:43,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 65.85714285714286) internal successors, (922), 14 states have internal predecessors, (922), 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) [2024-11-12 12:43:43,006 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:43,006 INFO L206 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] [2024-11-12 12:43:43,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:43:43,006 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:43:43,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:43,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1099440458, now seen corresponding path program 1 times [2024-11-12 12:43:43,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:43,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901717986] [2024-11-12 12:43:43,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:43,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:43,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:43,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:43,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901717986] [2024-11-12 12:43:43,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901717986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:43,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:43,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-12 12:43:43,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031832783] [2024-11-12 12:43:43,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:43,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 12:43:43,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:43,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 12:43:43,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-12 12:43:44,384 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 110 [2024-11-12 12:43:44,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 330 transitions, 2820 flow. Second operand has 14 states, 14 states have (on average 66.85714285714286) internal successors, (936), 14 states have internal predecessors, (936), 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) [2024-11-12 12:43:44,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:44,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 110 [2024-11-12 12:43:44,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:45,380 INFO L124 PetriNetUnfolderBase]: 404/1276 cut-off events. [2024-11-12 12:43:45,380 INFO L125 PetriNetUnfolderBase]: For 4760/4782 co-relation queries the response was YES. [2024-11-12 12:43:45,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5736 conditions, 1276 events. 404/1276 cut-off events. For 4760/4782 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 8400 event pairs, 13 based on Foata normal form. 15/1286 useless extension candidates. Maximal degree in co-relation 5588. Up to 345 conditions per place. [2024-11-12 12:43:45,394 INFO L140 encePairwiseOnDemand]: 94/110 looper letters, 253 selfloop transitions, 73 changer transitions 0/418 dead transitions. [2024-11-12 12:43:45,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 418 transitions, 4401 flow [2024-11-12 12:43:45,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-12 12:43:45,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-12 12:43:45,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1808 transitions. [2024-11-12 12:43:45,399 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6321678321678321 [2024-11-12 12:43:45,399 INFO L175 Difference]: Start difference. First operand has 183 places, 330 transitions, 2820 flow. Second operand 26 states and 1808 transitions. [2024-11-12 12:43:45,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 418 transitions, 4401 flow [2024-11-12 12:43:45,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 418 transitions, 4147 flow, removed 100 selfloop flow, removed 8 redundant places. [2024-11-12 12:43:45,448 INFO L231 Difference]: Finished difference. Result has 205 places, 355 transitions, 3066 flow [2024-11-12 12:43:45,449 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=2661, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=3066, PETRI_PLACES=205, PETRI_TRANSITIONS=355} [2024-11-12 12:43:45,449 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 96 predicate places. [2024-11-12 12:43:45,450 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 355 transitions, 3066 flow [2024-11-12 12:43:45,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 66.85714285714286) internal successors, (936), 14 states have internal predecessors, (936), 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) [2024-11-12 12:43:45,450 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:45,451 INFO L206 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] [2024-11-12 12:43:45,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:43:45,451 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:43:45,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:45,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1029781006, now seen corresponding path program 2 times [2024-11-12 12:43:45,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:45,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634573882] [2024-11-12 12:43:45,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:45,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:46,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:46,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:46,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634573882] [2024-11-12 12:43:46,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634573882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:43:46,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:43:46,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-12 12:43:46,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850483824] [2024-11-12 12:43:46,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:43:46,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 12:43:46,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:43:46,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 12:43:46,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-12 12:43:46,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 110 [2024-11-12 12:43:46,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 355 transitions, 3066 flow. Second operand has 14 states, 14 states have (on average 66.85714285714286) internal successors, (936), 14 states have internal predecessors, (936), 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) [2024-11-12 12:43:46,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:43:46,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 110 [2024-11-12 12:43:46,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:43:47,765 INFO L124 PetriNetUnfolderBase]: 485/1541 cut-off events. [2024-11-12 12:43:47,766 INFO L125 PetriNetUnfolderBase]: For 5842/5946 co-relation queries the response was YES. [2024-11-12 12:43:47,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6966 conditions, 1541 events. 485/1541 cut-off events. For 5842/5946 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 11001 event pairs, 35 based on Foata normal form. 18/1546 useless extension candidates. Maximal degree in co-relation 6810. Up to 439 conditions per place. [2024-11-12 12:43:47,783 INFO L140 encePairwiseOnDemand]: 90/110 looper letters, 236 selfloop transitions, 89 changer transitions 0/417 dead transitions. [2024-11-12 12:43:47,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 417 transitions, 4366 flow [2024-11-12 12:43:47,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-12 12:43:47,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-12 12:43:47,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1265 transitions. [2024-11-12 12:43:47,788 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-11-12 12:43:47,788 INFO L175 Difference]: Start difference. First operand has 205 places, 355 transitions, 3066 flow. Second operand 18 states and 1265 transitions. [2024-11-12 12:43:47,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 417 transitions, 4366 flow [2024-11-12 12:43:47,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 417 transitions, 4297 flow, removed 0 selfloop flow, removed 16 redundant places. [2024-11-12 12:43:47,854 INFO L231 Difference]: Finished difference. Result has 210 places, 379 transitions, 3602 flow [2024-11-12 12:43:47,855 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=2997, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3602, PETRI_PLACES=210, PETRI_TRANSITIONS=379} [2024-11-12 12:43:47,856 INFO L279 CegarLoopForPetriNet]: 109 programPoint places, 101 predicate places. [2024-11-12 12:43:47,856 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 379 transitions, 3602 flow [2024-11-12 12:43:47,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 66.85714285714286) internal successors, (936), 14 states have internal predecessors, (936), 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) [2024-11-12 12:43:47,857 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:43:47,857 INFO L206 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] [2024-11-12 12:43:47,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:43:47,857 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2024-11-12 12:43:47,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:43:47,858 INFO L85 PathProgramCache]: Analyzing trace with hash -779703296, now seen corresponding path program 3 times [2024-11-12 12:43:47,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:43:47,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213546123] [2024-11-12 12:43:47,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:43:47,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:43:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:43:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:48,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:43:48,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213546123] [2024-11-12 12:43:48,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213546123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:43:48,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211482347] [2024-11-12 12:43:48,338 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 12:43:48,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:43:48,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:43:48,340 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) [2024-11-12 12:43:48,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 12:43:48,579 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-12 12:43:48,579 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 12:43:48,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-12 12:43:48,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:43:48,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-12 12:43:48,759 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-12 12:43:48,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-12 12:43:49,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-12 12:43:49,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-12 12:43:49,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-11-12 12:43:49,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-11-12 12:43:49,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2024-11-12 12:43:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:43:49,477 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:44:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:44:00,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211482347] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:44:00,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:44:00,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 14] total 39 [2024-11-12 12:44:00,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137756773] [2024-11-12 12:44:00,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:44:00,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-12 12:44:00,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:44:00,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-12 12:44:00,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1382, Unknown=2, NotChecked=0, Total=1560 [2024-11-12 12:44:04,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:06,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:10,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:14,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:19,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:23,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:25,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:29,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:34,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:38,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:43,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:48,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:52,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:56,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:44:59,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-12 12:45:03,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]