./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.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 16badef15fc63e9ddc5177a1b2c95333295e395a70b18e0490e8c8921933ac0e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 10:02:47,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 10:02:47,203 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 10:02:47,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 10:02:47,231 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 10:02:47,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 10:02:47,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 10:02:47,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 10:02:47,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 10:02:47,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 10:02:47,268 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 10:02:47,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 10:02:47,269 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 10:02:47,269 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 10:02:47,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 10:02:47,270 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 10:02:47,270 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 10:02:47,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 10:02:47,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 10:02:47,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 10:02:47,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 10:02:47,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 10:02:47,273 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 10:02:47,274 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 10:02:47,275 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 10:02:47,275 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 10:02:47,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 10:02:47,275 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 10:02:47,276 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 10:02:47,276 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 10:02:47,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 10:02:47,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:02:47,277 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 10:02:47,277 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 10:02:47,277 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 10:02:47,277 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 10:02:47,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 10:02:47,278 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 10:02:47,278 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 10:02:47,278 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 10:02:47,279 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 10:02:47,279 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16badef15fc63e9ddc5177a1b2c95333295e395a70b18e0490e8c8921933ac0e [2024-10-13 10:02:47,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 10:02:47,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 10:02:47,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 10:02:47,541 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 10:02:47,542 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 10:02:47,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i [2024-10-13 10:02:49,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 10:02:49,367 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 10:02:49,368 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-array-init.i [2024-10-13 10:02:49,391 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a10dc41b7/7cb68f252913421fb6b2aa95d0b4c947/FLAG96477d2df [2024-10-13 10:02:49,407 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a10dc41b7/7cb68f252913421fb6b2aa95d0b4c947 [2024-10-13 10:02:49,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 10:02:49,412 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 10:02:49,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 10:02:49,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 10:02:49,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 10:02:49,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:02:49" (1/1) ... [2024-10-13 10:02:49,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193f9b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:49, skipping insertion in model container [2024-10-13 10:02:49,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:02:49" (1/1) ... [2024-10-13 10:02:49,476 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 10:02:49,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:02:49,954 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 10:02:49,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:02:50,055 INFO L204 MainTranslator]: Completed translation [2024-10-13 10:02:50,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50 WrapperNode [2024-10-13 10:02:50,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 10:02:50,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 10:02:50,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 10:02:50,057 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 10:02:50,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50" (1/1) ... [2024-10-13 10:02:50,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50" (1/1) ... [2024-10-13 10:02:50,116 INFO L138 Inliner]: procedures = 261, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-10-13 10:02:50,119 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 10:02:50,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 10:02:50,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 10:02:50,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 10:02:50,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50" (1/1) ... [2024-10-13 10:02:50,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50" (1/1) ... [2024-10-13 10:02:50,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50" (1/1) ... [2024-10-13 10:02:50,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50" (1/1) ... [2024-10-13 10:02:50,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50" (1/1) ... [2024-10-13 10:02:50,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50" (1/1) ... [2024-10-13 10:02:50,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50" (1/1) ... [2024-10-13 10:02:50,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50" (1/1) ... [2024-10-13 10:02:50,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 10:02:50,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 10:02:50,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 10:02:50,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 10:02:50,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50" (1/1) ... [2024-10-13 10:02:50,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:02:50,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:02:50,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 10:02:50,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 10:02:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 10:02:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 10:02:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 10:02:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 10:02:50,245 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-13 10:02:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-13 10:02:50,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 10:02:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 10:02:50,247 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 10:02:50,379 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 10:02:50,381 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 10:02:50,631 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 10:02:50,631 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 10:02:50,644 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 10:02:50,644 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 10:02:50,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:02:50 BoogieIcfgContainer [2024-10-13 10:02:50,645 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 10:02:50,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 10:02:50,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 10:02:50,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 10:02:50,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:02:49" (1/3) ... [2024-10-13 10:02:50,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215741ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:02:50, skipping insertion in model container [2024-10-13 10:02:50,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:02:50" (2/3) ... [2024-10-13 10:02:50,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@215741ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:02:50, skipping insertion in model container [2024-10-13 10:02:50,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:02:50" (3/3) ... [2024-10-13 10:02:50,654 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-init.i [2024-10-13 10:02:50,672 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 10:02:50,673 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-13 10:02:50,673 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 10:02:50,751 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 10:02:50,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 90 transitions, 187 flow [2024-10-13 10:02:50,860 INFO L124 PetriNetUnfolderBase]: 6/131 cut-off events. [2024-10-13 10:02:50,863 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 10:02:50,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 131 events. 6/131 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 189 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 64. Up to 4 conditions per place. [2024-10-13 10:02:50,871 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 90 transitions, 187 flow [2024-10-13 10:02:50,875 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 90 transitions, 187 flow [2024-10-13 10:02:50,887 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 10:02:50,897 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;@18e068cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 10:02:50,897 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-13 10:02:50,914 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 10:02:50,914 INFO L124 PetriNetUnfolderBase]: 3/43 cut-off events. [2024-10-13 10:02:50,914 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 10:02:50,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:02:50,915 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:02:50,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:02:50,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:02:50,922 INFO L85 PathProgramCache]: Analyzing trace with hash 2036736685, now seen corresponding path program 1 times [2024-10-13 10:02:50,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:02:50,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288154132] [2024-10-13 10:02:50,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:02:50,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:02:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:02:51,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:02:51,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:02:51,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288154132] [2024-10-13 10:02:51,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288154132] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:02:51,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:02:51,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:02:51,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750194681] [2024-10-13 10:02:51,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:02:51,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:02:51,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:02:51,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:02:51,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:02:52,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2024-10-13 10:02:52,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 90 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:02:52,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:02:52,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2024-10-13 10:02:52,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:02:52,278 INFO L124 PetriNetUnfolderBase]: 91/418 cut-off events. [2024-10-13 10:02:52,279 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 10:02:52,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 418 events. 91/418 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2003 event pairs, 52 based on Foata normal form. 13/395 useless extension candidates. Maximal degree in co-relation 559. Up to 197 conditions per place. [2024-10-13 10:02:52,283 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 27 selfloop transitions, 22 changer transitions 1/108 dead transitions. [2024-10-13 10:02:52,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 108 transitions, 321 flow [2024-10-13 10:02:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:02:52,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:02:52,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2024-10-13 10:02:52,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7537037037037037 [2024-10-13 10:02:52,300 INFO L175 Difference]: Start difference. First operand has 89 places, 90 transitions, 187 flow. Second operand 6 states and 407 transitions. [2024-10-13 10:02:52,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 108 transitions, 321 flow [2024-10-13 10:02:52,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 108 transitions, 321 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:02:52,308 INFO L231 Difference]: Finished difference. Result has 99 places, 107 transitions, 329 flow [2024-10-13 10:02:52,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=329, PETRI_PLACES=99, PETRI_TRANSITIONS=107} [2024-10-13 10:02:52,316 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 10 predicate places. [2024-10-13 10:02:52,317 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 107 transitions, 329 flow [2024-10-13 10:02:52,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:02:52,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:02:52,317 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:02:52,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 10:02:52,318 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:02:52,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:02:52,319 INFO L85 PathProgramCache]: Analyzing trace with hash 460665484, now seen corresponding path program 1 times [2024-10-13 10:02:52,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:02:52,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323641997] [2024-10-13 10:02:52,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:02:52,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:02:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:02:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:02:52,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:02:52,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323641997] [2024-10-13 10:02:52,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323641997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:02:52,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:02:52,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:02:52,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917191436] [2024-10-13 10:02:52,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:02:52,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 10:02:52,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:02:52,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 10:02:52,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:02:52,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 90 [2024-10-13 10:02:52,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 107 transitions, 329 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:02:52,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:02:52,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 90 [2024-10-13 10:02:52,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:02:52,624 INFO L124 PetriNetUnfolderBase]: 40/253 cut-off events. [2024-10-13 10:02:52,625 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-13 10:02:52,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 253 events. 40/253 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 835 event pairs, 4 based on Foata normal form. 1/239 useless extension candidates. Maximal degree in co-relation 333. Up to 50 conditions per place. [2024-10-13 10:02:52,627 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 11 selfloop transitions, 2 changer transitions 5/112 dead transitions. [2024-10-13 10:02:52,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 112 transitions, 375 flow [2024-10-13 10:02:52,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:02:52,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:02:52,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 463 transitions. [2024-10-13 10:02:52,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8574074074074074 [2024-10-13 10:02:52,630 INFO L175 Difference]: Start difference. First operand has 99 places, 107 transitions, 329 flow. Second operand 6 states and 463 transitions. [2024-10-13 10:02:52,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 112 transitions, 375 flow [2024-10-13 10:02:52,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 112 transitions, 375 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:02:52,636 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 347 flow [2024-10-13 10:02:52,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=98, 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=347, PETRI_PLACES=107, PETRI_TRANSITIONS=107} [2024-10-13 10:02:52,637 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 18 predicate places. [2024-10-13 10:02:52,637 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 347 flow [2024-10-13 10:02:52,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:02:52,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:02:52,638 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:02:52,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 10:02:52,638 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:02:52,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:02:52,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1788191437, now seen corresponding path program 1 times [2024-10-13 10:02:52,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:02:52,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922892867] [2024-10-13 10:02:52,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:02:52,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:02:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:02:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:02:53,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:02:53,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922892867] [2024-10-13 10:02:53,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922892867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:02:53,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:02:53,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:02:53,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838357901] [2024-10-13 10:02:53,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:02:53,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:02:53,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:02:53,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:02:53,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:02:53,173 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 90 [2024-10-13 10:02:53,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:02:53,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:02:53,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 90 [2024-10-13 10:02:53,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:02:53,269 INFO L124 PetriNetUnfolderBase]: 109/469 cut-off events. [2024-10-13 10:02:53,269 INFO L125 PetriNetUnfolderBase]: For 99/102 co-relation queries the response was YES. [2024-10-13 10:02:53,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 469 events. 109/469 cut-off events. For 99/102 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2282 event pairs, 36 based on Foata normal form. 0/437 useless extension candidates. Maximal degree in co-relation 886. Up to 225 conditions per place. [2024-10-13 10:02:53,273 INFO L140 encePairwiseOnDemand]: 79/90 looper letters, 46 selfloop transitions, 22 changer transitions 0/128 dead transitions. [2024-10-13 10:02:53,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 128 transitions, 557 flow [2024-10-13 10:02:53,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:02:53,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:02:53,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 404 transitions. [2024-10-13 10:02:53,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7481481481481481 [2024-10-13 10:02:53,276 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 347 flow. Second operand 6 states and 404 transitions. [2024-10-13 10:02:53,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 128 transitions, 557 flow [2024-10-13 10:02:53,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 128 transitions, 543 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-13 10:02:53,281 INFO L231 Difference]: Finished difference. Result has 109 places, 128 transitions, 515 flow [2024-10-13 10:02:53,282 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=515, PETRI_PLACES=109, PETRI_TRANSITIONS=128} [2024-10-13 10:02:53,282 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 20 predicate places. [2024-10-13 10:02:53,283 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 128 transitions, 515 flow [2024-10-13 10:02:53,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:02:53,283 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:02:53,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:02:53,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 10:02:53,284 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:02:53,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:02:53,285 INFO L85 PathProgramCache]: Analyzing trace with hash 628878030, now seen corresponding path program 1 times [2024-10-13 10:02:53,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:02:53,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216906429] [2024-10-13 10:02:53,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:02:53,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:02:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:02:53,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:02:53,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:02:53,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216906429] [2024-10-13 10:02:53,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216906429] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:02:53,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:02:53,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:02:53,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419814529] [2024-10-13 10:02:53,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:02:53,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:02:53,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:02:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:02:53,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:02:53,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 90 [2024-10-13 10:02:53,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 128 transitions, 515 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) [2024-10-13 10:02:53,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:02:53,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 90 [2024-10-13 10:02:53,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:02:53,869 INFO L124 PetriNetUnfolderBase]: 140/585 cut-off events. [2024-10-13 10:02:53,869 INFO L125 PetriNetUnfolderBase]: For 340/365 co-relation queries the response was YES. [2024-10-13 10:02:53,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 585 events. 140/585 cut-off events. For 340/365 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3035 event pairs, 14 based on Foata normal form. 4/562 useless extension candidates. Maximal degree in co-relation 1382. Up to 232 conditions per place. [2024-10-13 10:02:53,874 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 46 selfloop transitions, 57 changer transitions 8/176 dead transitions. [2024-10-13 10:02:53,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 176 transitions, 963 flow [2024-10-13 10:02:53,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:02:53,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:02:53,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2024-10-13 10:02:53,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8777777777777778 [2024-10-13 10:02:53,877 INFO L175 Difference]: Start difference. First operand has 109 places, 128 transitions, 515 flow. Second operand 6 states and 474 transitions. [2024-10-13 10:02:53,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 176 transitions, 963 flow [2024-10-13 10:02:53,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 176 transitions, 925 flow, removed 19 selfloop flow, removed 0 redundant places. [2024-10-13 10:02:53,885 INFO L231 Difference]: Finished difference. Result has 119 places, 168 transitions, 981 flow [2024-10-13 10:02:53,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=981, PETRI_PLACES=119, PETRI_TRANSITIONS=168} [2024-10-13 10:02:53,886 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2024-10-13 10:02:53,886 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 168 transitions, 981 flow [2024-10-13 10:02:53,887 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) [2024-10-13 10:02:53,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:02:53,887 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:02:53,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 10:02:53,888 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:02:53,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:02:53,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1921327265, now seen corresponding path program 1 times [2024-10-13 10:02:53,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:02:53,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010634445] [2024-10-13 10:02:53,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:02:53,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:02:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:02:54,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 10:02:54,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:02:54,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010634445] [2024-10-13 10:02:54,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010634445] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:02:54,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:02:54,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:02:54,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370294036] [2024-10-13 10:02:54,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:02:54,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:02:54,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:02:54,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:02:54,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:02:54,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 90 [2024-10-13 10:02:54,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 168 transitions, 981 flow. Second operand has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:02:54,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:02:54,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 90 [2024-10-13 10:02:54,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:02:54,480 INFO L124 PetriNetUnfolderBase]: 125/536 cut-off events. [2024-10-13 10:02:54,481 INFO L125 PetriNetUnfolderBase]: For 639/656 co-relation queries the response was YES. [2024-10-13 10:02:54,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1631 conditions, 536 events. 125/536 cut-off events. For 639/656 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2786 event pairs, 6 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 1501. Up to 135 conditions per place. [2024-10-13 10:02:54,486 INFO L140 encePairwiseOnDemand]: 84/90 looper letters, 55 selfloop transitions, 0 changer transitions 15/167 dead transitions. [2024-10-13 10:02:54,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 167 transitions, 1105 flow [2024-10-13 10:02:54,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:02:54,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:02:54,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2024-10-13 10:02:54,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2024-10-13 10:02:54,488 INFO L175 Difference]: Start difference. First operand has 119 places, 168 transitions, 981 flow. Second operand 6 states and 410 transitions. [2024-10-13 10:02:54,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 167 transitions, 1105 flow [2024-10-13 10:02:54,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 167 transitions, 1069 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-13 10:02:54,500 INFO L231 Difference]: Finished difference. Result has 115 places, 152 transitions, 908 flow [2024-10-13 10:02:54,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=908, PETRI_PLACES=115, PETRI_TRANSITIONS=152} [2024-10-13 10:02:54,501 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 26 predicate places. [2024-10-13 10:02:54,502 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 152 transitions, 908 flow [2024-10-13 10:02:54,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.83333333333333) internal successors, (407), 6 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:02:54,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:02:54,503 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:02:54,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 10:02:54,504 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:02:54,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:02:54,504 INFO L85 PathProgramCache]: Analyzing trace with hash 707737008, now seen corresponding path program 1 times [2024-10-13 10:02:54,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:02:54,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710552777] [2024-10-13 10:02:54,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:02:54,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:02:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:02:55,501 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:02:55,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:02:55,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710552777] [2024-10-13 10:02:55,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710552777] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:02:55,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358911922] [2024-10-13 10:02:55,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:02:55,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:02:55,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:02:55,505 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) [2024-10-13 10:02:55,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 10:02:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:02:55,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-13 10:02:55,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:02:55,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 11 [2024-10-13 10:02:55,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 10:02:55,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:02:55,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 10:02:56,011 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:02:56,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 10:02:56,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:02:56,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:02:56,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:02:56,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:02:56,136 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:02:56,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-13 10:02:56,159 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:02:56,159 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:02:56,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358911922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:02:56,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:02:56,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-13 10:02:56,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208812827] [2024-10-13 10:02:56,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:02:56,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:02:56,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:02:56,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:02:56,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:02:56,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-13 10:02:56,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 152 transitions, 908 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:02:56,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:02:56,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-13 10:02:56,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:02:57,275 INFO L124 PetriNetUnfolderBase]: 256/858 cut-off events. [2024-10-13 10:02:57,276 INFO L125 PetriNetUnfolderBase]: For 1056/1071 co-relation queries the response was YES. [2024-10-13 10:02:57,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2941 conditions, 858 events. 256/858 cut-off events. For 1056/1071 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4920 event pairs, 12 based on Foata normal form. 9/863 useless extension candidates. Maximal degree in co-relation 2921. Up to 297 conditions per place. [2024-10-13 10:02:57,283 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 165 selfloop transitions, 64 changer transitions 0/269 dead transitions. [2024-10-13 10:02:57,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 269 transitions, 2226 flow [2024-10-13 10:02:57,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 10:02:57,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 10:02:57,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 929 transitions. [2024-10-13 10:02:57,287 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6881481481481482 [2024-10-13 10:02:57,287 INFO L175 Difference]: Start difference. First operand has 115 places, 152 transitions, 908 flow. Second operand 15 states and 929 transitions. [2024-10-13 10:02:57,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 269 transitions, 2226 flow [2024-10-13 10:02:57,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 269 transitions, 2224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 10:02:57,302 INFO L231 Difference]: Finished difference. Result has 119 places, 198 transitions, 1533 flow [2024-10-13 10:02:57,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1533, PETRI_PLACES=119, PETRI_TRANSITIONS=198} [2024-10-13 10:02:57,303 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2024-10-13 10:02:57,303 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 198 transitions, 1533 flow [2024-10-13 10:02:57,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:02:57,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:02:57,304 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:02:57,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 10:02:57,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-13 10:02:57,509 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:02:57,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:02:57,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1200885021, now seen corresponding path program 1 times [2024-10-13 10:02:57,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:02:57,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055570382] [2024-10-13 10:02:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:02:57,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:02:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:02:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:02:58,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:02:58,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055570382] [2024-10-13 10:02:58,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055570382] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:02:58,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902093728] [2024-10-13 10:02:58,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:02:58,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:02:58,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:02:58,331 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:02:58,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 10:02:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:02:58,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-13 10:02:58,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:02:58,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2024-10-13 10:02:58,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-13 10:02:58,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-10-13 10:02:58,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-10-13 10:02:58,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:02:58,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:02:58,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:02:58,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:02:58,864 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:02:58,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-10-13 10:02:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:02:58,874 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:02:58,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902093728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:02:58,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:02:58,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-13 10:02:58,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337665263] [2024-10-13 10:02:58,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:02:58,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:02:58,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:02:58,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:02:58,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:02:59,483 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-10-13 10:02:59,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 198 transitions, 1533 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:02:59,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:02:59,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-10-13 10:02:59,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:02:59,991 INFO L124 PetriNetUnfolderBase]: 256/954 cut-off events. [2024-10-13 10:02:59,992 INFO L125 PetriNetUnfolderBase]: For 1830/1868 co-relation queries the response was YES. [2024-10-13 10:02:59,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3597 conditions, 954 events. 256/954 cut-off events. For 1830/1868 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5998 event pairs, 16 based on Foata normal form. 7/960 useless extension candidates. Maximal degree in co-relation 3568. Up to 445 conditions per place. [2024-10-13 10:03:00,003 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 158 selfloop transitions, 43 changer transitions 0/254 dead transitions. [2024-10-13 10:03:00,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 254 transitions, 2355 flow [2024-10-13 10:03:00,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 10:03:00,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 10:03:00,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 986 transitions. [2024-10-13 10:03:00,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7303703703703703 [2024-10-13 10:03:00,008 INFO L175 Difference]: Start difference. First operand has 119 places, 198 transitions, 1533 flow. Second operand 15 states and 986 transitions. [2024-10-13 10:03:00,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 254 transitions, 2355 flow [2024-10-13 10:03:00,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 254 transitions, 2310 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-13 10:03:00,035 INFO L231 Difference]: Finished difference. Result has 140 places, 236 transitions, 2020 flow [2024-10-13 10:03:00,036 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=1516, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2020, PETRI_PLACES=140, PETRI_TRANSITIONS=236} [2024-10-13 10:03:00,037 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 51 predicate places. [2024-10-13 10:03:00,037 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 236 transitions, 2020 flow [2024-10-13 10:03:00,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:00,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:00,038 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:00,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 10:03:00,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-13 10:03:00,240 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:03:00,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:00,241 INFO L85 PathProgramCache]: Analyzing trace with hash 35174206, now seen corresponding path program 2 times [2024-10-13 10:03:00,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:00,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845822375] [2024-10-13 10:03:00,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:00,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:01,041 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:01,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:01,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845822375] [2024-10-13 10:03:01,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845822375] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:01,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337555655] [2024-10-13 10:03:01,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 10:03:01,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:01,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:01,051 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:03:01,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 10:03:01,164 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 10:03:01,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:03:01,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-13 10:03:01,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:03:01,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 11 [2024-10-13 10:03:01,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 10:03:01,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 10:03:01,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 10:03:01,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:01,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:01,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:01,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:01,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:01,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-13 10:03:01,535 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:01,535 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:03:01,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337555655] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:01,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:03:01,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-13 10:03:01,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453551920] [2024-10-13 10:03:01,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:01,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:03:01,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:01,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:03:01,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:03:02,030 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-13 10:03:02,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 236 transitions, 2020 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:02,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:02,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-13 10:03:02,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:02,550 INFO L124 PetriNetUnfolderBase]: 408/1477 cut-off events. [2024-10-13 10:03:02,551 INFO L125 PetriNetUnfolderBase]: For 4016/4054 co-relation queries the response was YES. [2024-10-13 10:03:02,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6153 conditions, 1477 events. 408/1477 cut-off events. For 4016/4054 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 10677 event pairs, 30 based on Foata normal form. 11/1482 useless extension candidates. Maximal degree in co-relation 6114. Up to 497 conditions per place. [2024-10-13 10:03:02,569 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 267 selfloop transitions, 81 changer transitions 0/391 dead transitions. [2024-10-13 10:03:02,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 391 transitions, 4244 flow [2024-10-13 10:03:02,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 10:03:02,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-13 10:03:02,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 799 transitions. [2024-10-13 10:03:02,572 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6829059829059829 [2024-10-13 10:03:02,572 INFO L175 Difference]: Start difference. First operand has 140 places, 236 transitions, 2020 flow. Second operand 13 states and 799 transitions. [2024-10-13 10:03:02,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 391 transitions, 4244 flow [2024-10-13 10:03:02,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 391 transitions, 4208 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-13 10:03:02,617 INFO L231 Difference]: Finished difference. Result has 161 places, 285 transitions, 2906 flow [2024-10-13 10:03:02,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=1998, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2906, PETRI_PLACES=161, PETRI_TRANSITIONS=285} [2024-10-13 10:03:02,619 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 72 predicate places. [2024-10-13 10:03:02,619 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 285 transitions, 2906 flow [2024-10-13 10:03:02,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:02,619 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:02,620 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:02,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 10:03:02,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:02,821 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:03:02,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:02,821 INFO L85 PathProgramCache]: Analyzing trace with hash 808741728, now seen corresponding path program 3 times [2024-10-13 10:03:02,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:02,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559987709] [2024-10-13 10:03:02,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:02,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:03,513 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:03,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:03,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559987709] [2024-10-13 10:03:03,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559987709] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:03,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410451709] [2024-10-13 10:03:03,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 10:03:03,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:03,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:03,517 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:03:03,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 10:03:03,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-13 10:03:03,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:03:03,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-13 10:03:03,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:03:03,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 11 [2024-10-13 10:03:03,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 10:03:03,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 10:03:03,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 10:03:04,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:04,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:04,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:04,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:04,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:04,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-13 10:03:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:04,032 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:03:04,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410451709] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:04,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:03:04,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-13 10:03:04,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933651503] [2024-10-13 10:03:04,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:04,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:03:04,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:04,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:03:04,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:03:04,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-13 10:03:04,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 285 transitions, 2906 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:04,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:04,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-13 10:03:04,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:05,318 INFO L124 PetriNetUnfolderBase]: 555/1991 cut-off events. [2024-10-13 10:03:05,319 INFO L125 PetriNetUnfolderBase]: For 7089/7151 co-relation queries the response was YES. [2024-10-13 10:03:05,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8956 conditions, 1991 events. 555/1991 cut-off events. For 7089/7151 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 15727 event pairs, 35 based on Foata normal form. 12/1995 useless extension candidates. Maximal degree in co-relation 8908. Up to 788 conditions per place. [2024-10-13 10:03:05,346 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 336 selfloop transitions, 87 changer transitions 0/466 dead transitions. [2024-10-13 10:03:05,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 466 transitions, 5653 flow [2024-10-13 10:03:05,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 10:03:05,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-13 10:03:05,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 865 transitions. [2024-10-13 10:03:05,349 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6865079365079365 [2024-10-13 10:03:05,349 INFO L175 Difference]: Start difference. First operand has 161 places, 285 transitions, 2906 flow. Second operand 14 states and 865 transitions. [2024-10-13 10:03:05,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 466 transitions, 5653 flow [2024-10-13 10:03:05,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 466 transitions, 5590 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-10-13 10:03:05,435 INFO L231 Difference]: Finished difference. Result has 182 places, 338 transitions, 3947 flow [2024-10-13 10:03:05,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=2854, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3947, PETRI_PLACES=182, PETRI_TRANSITIONS=338} [2024-10-13 10:03:05,436 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 93 predicate places. [2024-10-13 10:03:05,437 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 338 transitions, 3947 flow [2024-10-13 10:03:05,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:05,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:05,438 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:05,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 10:03:05,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:05,642 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:03:05,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:05,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1876887687, now seen corresponding path program 2 times [2024-10-13 10:03:05,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:05,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300569058] [2024-10-13 10:03:05,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:05,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:06,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:06,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:06,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300569058] [2024-10-13 10:03:06,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300569058] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:06,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910958196] [2024-10-13 10:03:06,260 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 10:03:06,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:06,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:06,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:03:06,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 10:03:06,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 10:03:06,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:03:06,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-13 10:03:06,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:03:06,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2024-10-13 10:03:06,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-13 10:03:06,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-10-13 10:03:06,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-10-13 10:03:06,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:06,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:06,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:06,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:06,747 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:06,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-10-13 10:03:06,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:06,757 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:03:06,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910958196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:06,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:03:06,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-13 10:03:06,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647467611] [2024-10-13 10:03:06,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:06,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:03:06,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:06,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:03:06,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:03:07,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-10-13 10:03:07,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 338 transitions, 3947 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:07,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:07,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-10-13 10:03:07,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:08,153 INFO L124 PetriNetUnfolderBase]: 596/2305 cut-off events. [2024-10-13 10:03:08,153 INFO L125 PetriNetUnfolderBase]: For 10036/10164 co-relation queries the response was YES. [2024-10-13 10:03:08,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10686 conditions, 2305 events. 596/2305 cut-off events. For 10036/10164 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 19556 event pairs, 43 based on Foata normal form. 27/2329 useless extension candidates. Maximal degree in co-relation 10627. Up to 1005 conditions per place. [2024-10-13 10:03:08,187 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 260 selfloop transitions, 100 changer transitions 0/421 dead transitions. [2024-10-13 10:03:08,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 421 transitions, 5629 flow [2024-10-13 10:03:08,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 10:03:08,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 10:03:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1377 transitions. [2024-10-13 10:03:08,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7285714285714285 [2024-10-13 10:03:08,194 INFO L175 Difference]: Start difference. First operand has 182 places, 338 transitions, 3947 flow. Second operand 21 states and 1377 transitions. [2024-10-13 10:03:08,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 421 transitions, 5629 flow [2024-10-13 10:03:08,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 421 transitions, 5502 flow, removed 61 selfloop flow, removed 2 redundant places. [2024-10-13 10:03:08,316 INFO L231 Difference]: Finished difference. Result has 205 places, 377 transitions, 4683 flow [2024-10-13 10:03:08,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=3824, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4683, PETRI_PLACES=205, PETRI_TRANSITIONS=377} [2024-10-13 10:03:08,318 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 116 predicate places. [2024-10-13 10:03:08,318 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 377 transitions, 4683 flow [2024-10-13 10:03:08,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:08,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:08,319 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:08,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-13 10:03:08,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-13 10:03:08,521 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:03:08,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:08,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1204398042, now seen corresponding path program 4 times [2024-10-13 10:03:08,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:08,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104060373] [2024-10-13 10:03:08,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:08,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:09,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:09,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104060373] [2024-10-13 10:03:09,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104060373] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:09,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320357545] [2024-10-13 10:03:09,163 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 10:03:09,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:09,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:09,165 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:03:09,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 10:03:09,261 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 10:03:09,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:03:09,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-13 10:03:09,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:03:09,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 11 [2024-10-13 10:03:09,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 10:03:09,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 10:03:09,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 10:03:09,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:09,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:09,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:09,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:09,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:09,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-13 10:03:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:09,607 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:03:09,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320357545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:09,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:03:09,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-13 10:03:09,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784680952] [2024-10-13 10:03:09,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:09,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:03:09,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:09,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:03:09,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:03:10,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-13 10:03:10,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 377 transitions, 4683 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:10,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:10,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-13 10:03:10,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:11,007 INFO L124 PetriNetUnfolderBase]: 878/3316 cut-off events. [2024-10-13 10:03:11,007 INFO L125 PetriNetUnfolderBase]: For 15240/15342 co-relation queries the response was YES. [2024-10-13 10:03:11,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16135 conditions, 3316 events. 878/3316 cut-off events. For 15240/15342 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 30830 event pairs, 88 based on Foata normal form. 17/3318 useless extension candidates. Maximal degree in co-relation 16072. Up to 768 conditions per place. [2024-10-13 10:03:11,059 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 486 selfloop transitions, 127 changer transitions 0/659 dead transitions. [2024-10-13 10:03:11,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 659 transitions, 9268 flow [2024-10-13 10:03:11,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 10:03:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-13 10:03:11,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1057 transitions. [2024-10-13 10:03:11,063 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6908496732026144 [2024-10-13 10:03:11,063 INFO L175 Difference]: Start difference. First operand has 205 places, 377 transitions, 4683 flow. Second operand 17 states and 1057 transitions. [2024-10-13 10:03:11,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 659 transitions, 9268 flow [2024-10-13 10:03:11,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 659 transitions, 9160 flow, removed 23 selfloop flow, removed 7 redundant places. [2024-10-13 10:03:11,319 INFO L231 Difference]: Finished difference. Result has 222 places, 435 transitions, 6015 flow [2024-10-13 10:03:11,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=4614, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=6015, PETRI_PLACES=222, PETRI_TRANSITIONS=435} [2024-10-13 10:03:11,320 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 133 predicate places. [2024-10-13 10:03:11,321 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 435 transitions, 6015 flow [2024-10-13 10:03:11,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:11,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:11,321 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:11,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 10:03:11,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:11,526 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:03:11,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:11,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1681440684, now seen corresponding path program 5 times [2024-10-13 10:03:11,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:11,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059260998] [2024-10-13 10:03:11,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:11,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:12,290 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:12,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:12,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059260998] [2024-10-13 10:03:12,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059260998] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:12,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415519684] [2024-10-13 10:03:12,291 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 10:03:12,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:12,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:12,293 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:03:12,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 10:03:12,413 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 10:03:12,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:03:12,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-13 10:03:12,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:03:12,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 11 [2024-10-13 10:03:12,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 10:03:12,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 10:03:12,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 10:03:12,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:12,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:12,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:12,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:12,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:12,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-13 10:03:12,769 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:12,769 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:03:12,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415519684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:12,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:03:12,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-13 10:03:12,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346640189] [2024-10-13 10:03:12,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:12,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:03:12,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:12,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:03:12,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=379, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:03:13,167 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-13 10:03:13,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 435 transitions, 6015 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:13,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:13,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-13 10:03:13,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:14,301 INFO L124 PetriNetUnfolderBase]: 1063/3932 cut-off events. [2024-10-13 10:03:14,301 INFO L125 PetriNetUnfolderBase]: For 21592/21715 co-relation queries the response was YES. [2024-10-13 10:03:14,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20012 conditions, 3932 events. 1063/3932 cut-off events. For 21592/21715 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 37876 event pairs, 81 based on Foata normal form. 18/3935 useless extension candidates. Maximal degree in co-relation 19941. Up to 1457 conditions per place. [2024-10-13 10:03:14,335 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 536 selfloop transitions, 134 changer transitions 0/716 dead transitions. [2024-10-13 10:03:14,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 716 transitions, 10691 flow [2024-10-13 10:03:14,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 10:03:14,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-13 10:03:14,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1006 transitions. [2024-10-13 10:03:14,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6986111111111111 [2024-10-13 10:03:14,338 INFO L175 Difference]: Start difference. First operand has 222 places, 435 transitions, 6015 flow. Second operand 16 states and 1006 transitions. [2024-10-13 10:03:14,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 716 transitions, 10691 flow [2024-10-13 10:03:14,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 716 transitions, 10485 flow, removed 96 selfloop flow, removed 2 redundant places. [2024-10-13 10:03:14,656 INFO L231 Difference]: Finished difference. Result has 244 places, 485 transitions, 7210 flow [2024-10-13 10:03:14,656 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=5811, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7210, PETRI_PLACES=244, PETRI_TRANSITIONS=485} [2024-10-13 10:03:14,657 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 155 predicate places. [2024-10-13 10:03:14,659 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 485 transitions, 7210 flow [2024-10-13 10:03:14,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:14,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:14,660 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:14,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 10:03:14,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:14,861 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:03:14,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:14,861 INFO L85 PathProgramCache]: Analyzing trace with hash -208675799, now seen corresponding path program 3 times [2024-10-13 10:03:14,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:14,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962344581] [2024-10-13 10:03:14,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:14,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:15,585 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:15,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:15,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962344581] [2024-10-13 10:03:15,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962344581] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:15,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081529833] [2024-10-13 10:03:15,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 10:03:15,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:15,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:15,589 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:03:15,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 10:03:15,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-13 10:03:15,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:03:15,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-13 10:03:15,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:03:15,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2024-10-13 10:03:15,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-13 10:03:15,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-10-13 10:03:15,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-10-13 10:03:16,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:16,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:16,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:16,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:16,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:16,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-10-13 10:03:16,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:16,109 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:03:16,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081529833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:16,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:03:16,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-13 10:03:16,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123995300] [2024-10-13 10:03:16,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:16,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:03:16,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:16,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:03:16,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:03:16,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-10-13 10:03:16,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 485 transitions, 7210 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:16,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:16,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-10-13 10:03:16,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:18,123 INFO L124 PetriNetUnfolderBase]: 1129/4377 cut-off events. [2024-10-13 10:03:18,123 INFO L125 PetriNetUnfolderBase]: For 28552/28850 co-relation queries the response was YES. [2024-10-13 10:03:18,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22870 conditions, 4377 events. 1129/4377 cut-off events. For 28552/28850 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 44078 event pairs, 92 based on Foata normal form. 62/4426 useless extension candidates. Maximal degree in co-relation 22790. Up to 1905 conditions per place. [2024-10-13 10:03:18,175 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 368 selfloop transitions, 191 changer transitions 0/635 dead transitions. [2024-10-13 10:03:18,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 635 transitions, 10411 flow [2024-10-13 10:03:18,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-13 10:03:18,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-13 10:03:18,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1514 transitions. [2024-10-13 10:03:18,179 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7314009661835749 [2024-10-13 10:03:18,179 INFO L175 Difference]: Start difference. First operand has 244 places, 485 transitions, 7210 flow. Second operand 23 states and 1514 transitions. [2024-10-13 10:03:18,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 635 transitions, 10411 flow [2024-10-13 10:03:18,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 635 transitions, 10121 flow, removed 125 selfloop flow, removed 3 redundant places. [2024-10-13 10:03:18,649 INFO L231 Difference]: Finished difference. Result has 275 places, 573 transitions, 9070 flow [2024-10-13 10:03:18,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=6938, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=9070, PETRI_PLACES=275, PETRI_TRANSITIONS=573} [2024-10-13 10:03:18,651 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 186 predicate places. [2024-10-13 10:03:18,651 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 573 transitions, 9070 flow [2024-10-13 10:03:18,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:18,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:18,655 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:18,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-13 10:03:18,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-13 10:03:18,860 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:03:18,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:18,860 INFO L85 PathProgramCache]: Analyzing trace with hash 361098670, now seen corresponding path program 6 times [2024-10-13 10:03:18,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:18,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902163154] [2024-10-13 10:03:18,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:18,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:19,767 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:19,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:19,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902163154] [2024-10-13 10:03:19,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902163154] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:19,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995171525] [2024-10-13 10:03:19,768 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-13 10:03:19,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:19,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:19,769 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:03:19,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 10:03:19,866 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-13 10:03:19,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:03:19,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-13 10:03:19,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:03:19,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 11 [2024-10-13 10:03:20,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 10:03:20,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 10:03:20,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 10:03:20,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:20,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:20,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:20,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:20,150 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:20,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-13 10:03:20,156 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:20,157 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:03:20,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995171525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:20,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:03:20,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-13 10:03:20,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658298511] [2024-10-13 10:03:20,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:20,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:03:20,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:20,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:03:20,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:03:20,611 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-13 10:03:20,612 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 573 transitions, 9070 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:20,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:20,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-13 10:03:20,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:21,920 INFO L124 PetriNetUnfolderBase]: 1182/4554 cut-off events. [2024-10-13 10:03:21,920 INFO L125 PetriNetUnfolderBase]: For 33273/33392 co-relation queries the response was YES. [2024-10-13 10:03:21,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25054 conditions, 4554 events. 1182/4554 cut-off events. For 33273/33392 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 46016 event pairs, 114 based on Foata normal form. 22/4561 useless extension candidates. Maximal degree in co-relation 24963. Up to 1131 conditions per place. [2024-10-13 10:03:21,968 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 594 selfloop transitions, 169 changer transitions 0/821 dead transitions. [2024-10-13 10:03:21,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 821 transitions, 13770 flow [2024-10-13 10:03:21,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 10:03:21,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 10:03:21,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 941 transitions. [2024-10-13 10:03:21,971 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.697037037037037 [2024-10-13 10:03:21,971 INFO L175 Difference]: Start difference. First operand has 275 places, 573 transitions, 9070 flow. Second operand 15 states and 941 transitions. [2024-10-13 10:03:21,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 821 transitions, 13770 flow [2024-10-13 10:03:22,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 821 transitions, 13690 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-10-13 10:03:22,655 INFO L231 Difference]: Finished difference. Result has 292 places, 610 transitions, 10293 flow [2024-10-13 10:03:22,656 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=8993, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=10293, PETRI_PLACES=292, PETRI_TRANSITIONS=610} [2024-10-13 10:03:22,657 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 203 predicate places. [2024-10-13 10:03:22,657 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 610 transitions, 10293 flow [2024-10-13 10:03:22,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:22,658 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:22,658 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:22,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-13 10:03:22,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-13 10:03:22,859 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:03:22,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:22,859 INFO L85 PathProgramCache]: Analyzing trace with hash 300743488, now seen corresponding path program 7 times [2024-10-13 10:03:22,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:22,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167423004] [2024-10-13 10:03:22,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:22,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:23,611 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:23,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:23,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167423004] [2024-10-13 10:03:23,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167423004] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:23,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884432229] [2024-10-13 10:03:23,611 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-13 10:03:23,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:23,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:23,613 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:03:23,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 10:03:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:23,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-13 10:03:23,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:03:23,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 11 [2024-10-13 10:03:23,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 10:03:23,826 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:23,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 10:03:23,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:23,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 10:03:23,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:23,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:23,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:23,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:23,946 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:23,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-13 10:03:23,953 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:23,953 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:03:23,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884432229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:23,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:03:23,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-13 10:03:23,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884545498] [2024-10-13 10:03:23,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:23,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:03:23,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:23,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:03:23,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:03:24,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-13 10:03:24,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 610 transitions, 10293 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:24,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:24,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-13 10:03:24,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:25,722 INFO L124 PetriNetUnfolderBase]: 1193/4585 cut-off events. [2024-10-13 10:03:25,723 INFO L125 PetriNetUnfolderBase]: For 39150/39279 co-relation queries the response was YES. [2024-10-13 10:03:25,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26218 conditions, 4585 events. 1193/4585 cut-off events. For 39150/39279 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 46442 event pairs, 99 based on Foata normal form. 16/4590 useless extension candidates. Maximal degree in co-relation 26119. Up to 1721 conditions per place. [2024-10-13 10:03:25,900 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 518 selfloop transitions, 174 changer transitions 0/750 dead transitions. [2024-10-13 10:03:25,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 750 transitions, 13515 flow [2024-10-13 10:03:25,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 10:03:25,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-13 10:03:25,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 881 transitions. [2024-10-13 10:03:25,903 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6992063492063492 [2024-10-13 10:03:25,903 INFO L175 Difference]: Start difference. First operand has 292 places, 610 transitions, 10293 flow. Second operand 14 states and 881 transitions. [2024-10-13 10:03:25,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 750 transitions, 13515 flow [2024-10-13 10:03:26,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 750 transitions, 12984 flow, removed 159 selfloop flow, removed 7 redundant places. [2024-10-13 10:03:26,467 INFO L231 Difference]: Finished difference. Result has 304 places, 638 transitions, 10753 flow [2024-10-13 10:03:26,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=9776, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10753, PETRI_PLACES=304, PETRI_TRANSITIONS=638} [2024-10-13 10:03:26,468 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 215 predicate places. [2024-10-13 10:03:26,468 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 638 transitions, 10753 flow [2024-10-13 10:03:26,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:26,468 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:26,468 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:26,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-13 10:03:26,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-13 10:03:26,669 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:03:26,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:26,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1447400219, now seen corresponding path program 4 times [2024-10-13 10:03:26,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:26,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016739630] [2024-10-13 10:03:26,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:26,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:27,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:27,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:27,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016739630] [2024-10-13 10:03:27,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016739630] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:27,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558881874] [2024-10-13 10:03:27,316 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-13 10:03:27,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:27,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:27,318 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:03:27,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-13 10:03:27,432 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-13 10:03:27,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:03:27,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-13 10:03:27,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:03:27,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2024-10-13 10:03:27,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-13 10:03:27,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2024-10-13 10:03:27,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2024-10-13 10:03:27,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:27,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:27,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:27,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:27,790 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:27,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 47 [2024-10-13 10:03:27,797 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:27,797 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:03:27,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558881874] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:27,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:03:27,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-13 10:03:27,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731364140] [2024-10-13 10:03:27,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:27,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:03:27,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:27,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:03:27,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:03:28,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 90 [2024-10-13 10:03:28,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 638 transitions, 10753 flow. Second operand has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:28,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:28,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 90 [2024-10-13 10:03:28,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:30,015 INFO L124 PetriNetUnfolderBase]: 1313/5136 cut-off events. [2024-10-13 10:03:30,015 INFO L125 PetriNetUnfolderBase]: For 45174/45544 co-relation queries the response was YES. [2024-10-13 10:03:30,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29574 conditions, 5136 events. 1313/5136 cut-off events. For 45174/45544 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 53660 event pairs, 96 based on Foata normal form. 90/5215 useless extension candidates. Maximal degree in co-relation 29469. Up to 1975 conditions per place. [2024-10-13 10:03:30,070 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 465 selfloop transitions, 267 changer transitions 0/816 dead transitions. [2024-10-13 10:03:30,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 816 transitions, 15015 flow [2024-10-13 10:03:30,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-13 10:03:30,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-13 10:03:30,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1528 transitions. [2024-10-13 10:03:30,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7381642512077294 [2024-10-13 10:03:30,073 INFO L175 Difference]: Start difference. First operand has 304 places, 638 transitions, 10753 flow. Second operand 23 states and 1528 transitions. [2024-10-13 10:03:30,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 816 transitions, 15015 flow [2024-10-13 10:03:30,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 816 transitions, 14712 flow, removed 26 selfloop flow, removed 7 redundant places. [2024-10-13 10:03:30,648 INFO L231 Difference]: Finished difference. Result has 329 places, 723 transitions, 12979 flow [2024-10-13 10:03:30,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=10494, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=12979, PETRI_PLACES=329, PETRI_TRANSITIONS=723} [2024-10-13 10:03:30,649 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 240 predicate places. [2024-10-13 10:03:30,650 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 723 transitions, 12979 flow [2024-10-13 10:03:30,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 62.916666666666664) internal successors, (755), 12 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:30,650 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:30,650 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:30,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-13 10:03:30,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-13 10:03:30,851 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:03:30,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:30,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1274136676, now seen corresponding path program 8 times [2024-10-13 10:03:30,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:30,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536046638] [2024-10-13 10:03:30,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:30,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:31,592 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:31,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:31,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536046638] [2024-10-13 10:03:31,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536046638] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:31,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472330850] [2024-10-13 10:03:31,593 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 10:03:31,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:31,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:31,595 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:03:31,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-13 10:03:31,720 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 10:03:31,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:03:31,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-13 10:03:31,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:03:31,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 11 [2024-10-13 10:03:31,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 10:03:31,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 10:03:31,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 10:03:32,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:32,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:32,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:32,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:32,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:32,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 67 [2024-10-13 10:03:32,137 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:32,137 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:03:32,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472330850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:32,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:03:32,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 22 [2024-10-13 10:03:32,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613743773] [2024-10-13 10:03:32,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:32,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:03:32,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:32,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:03:32,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2024-10-13 10:03:32,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 90 [2024-10-13 10:03:32,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 723 transitions, 12979 flow. Second operand has 12 states, 12 states have (on average 56.25) internal successors, (675), 12 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:32,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:32,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 90 [2024-10-13 10:03:32,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:34,455 INFO L124 PetriNetUnfolderBase]: 1446/5469 cut-off events. [2024-10-13 10:03:34,455 INFO L125 PetriNetUnfolderBase]: For 55606/55749 co-relation queries the response was YES. [2024-10-13 10:03:34,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33505 conditions, 5469 events. 1446/5469 cut-off events. For 55606/55749 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 57241 event pairs, 163 based on Foata normal form. 16/5463 useless extension candidates. Maximal degree in co-relation 33390. Up to 1476 conditions per place. [2024-10-13 10:03:34,538 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 622 selfloop transitions, 227 changer transitions 0/887 dead transitions. [2024-10-13 10:03:34,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 887 transitions, 17176 flow [2024-10-13 10:03:34,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 10:03:34,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-13 10:03:34,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 808 transitions. [2024-10-13 10:03:34,541 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6905982905982906 [2024-10-13 10:03:34,541 INFO L175 Difference]: Start difference. First operand has 329 places, 723 transitions, 12979 flow. Second operand 13 states and 808 transitions. [2024-10-13 10:03:34,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 887 transitions, 17176 flow [2024-10-13 10:03:35,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 887 transitions, 17062 flow, removed 47 selfloop flow, removed 3 redundant places. [2024-10-13 10:03:35,480 INFO L231 Difference]: Finished difference. Result has 344 places, 753 transitions, 14242 flow [2024-10-13 10:03:35,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=12866, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=198, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=14242, PETRI_PLACES=344, PETRI_TRANSITIONS=753} [2024-10-13 10:03:35,482 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 255 predicate places. [2024-10-13 10:03:35,482 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 753 transitions, 14242 flow [2024-10-13 10:03:35,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 56.25) internal successors, (675), 12 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:35,482 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:35,482 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:35,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-13 10:03:35,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-13 10:03:35,683 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:03:35,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:35,684 INFO L85 PathProgramCache]: Analyzing trace with hash -27766914, now seen corresponding path program 9 times [2024-10-13 10:03:35,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:35,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782284581] [2024-10-13 10:03:35,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:35,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:36,424 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:36,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:36,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782284581] [2024-10-13 10:03:36,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782284581] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:36,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953846670] [2024-10-13 10:03:36,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 10:03:36,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:36,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:36,427 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:03:36,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-13 10:03:36,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-13 10:03:36,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:03:36,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-13 10:03:36,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:03:36,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 11 [2024-10-13 10:03:36,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 10:03:36,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 10:03:36,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 10:03:36,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:36,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:36,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:36,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:36,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:36,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 60 [2024-10-13 10:03:36,871 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:36,871 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 10:03:36,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953846670] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:36,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 10:03:36,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2024-10-13 10:03:36,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747890429] [2024-10-13 10:03:36,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:36,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:03:36,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:36,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:03:36,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:03:37,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 90 [2024-10-13 10:03:37,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 753 transitions, 14242 flow. Second operand has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:37,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:37,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 90 [2024-10-13 10:03:37,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:38,908 INFO L124 PetriNetUnfolderBase]: 1375/5326 cut-off events. [2024-10-13 10:03:38,908 INFO L125 PetriNetUnfolderBase]: For 60242/60359 co-relation queries the response was YES. [2024-10-13 10:03:38,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33689 conditions, 5326 events. 1375/5326 cut-off events. For 60242/60359 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 56124 event pairs, 100 based on Foata normal form. 27/5336 useless extension candidates. Maximal degree in co-relation 33567. Up to 2201 conditions per place. [2024-10-13 10:03:38,986 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 632 selfloop transitions, 213 changer transitions 0/916 dead transitions. [2024-10-13 10:03:38,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 916 transitions, 18410 flow [2024-10-13 10:03:38,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 10:03:38,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-13 10:03:38,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1053 transitions. [2024-10-13 10:03:38,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6882352941176471 [2024-10-13 10:03:38,988 INFO L175 Difference]: Start difference. First operand has 344 places, 753 transitions, 14242 flow. Second operand 17 states and 1053 transitions. [2024-10-13 10:03:38,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 916 transitions, 18410 flow [2024-10-13 10:03:39,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 916 transitions, 18219 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-10-13 10:03:39,885 INFO L231 Difference]: Finished difference. Result has 361 places, 781 transitions, 15217 flow [2024-10-13 10:03:39,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=14051, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=753, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=15217, PETRI_PLACES=361, PETRI_TRANSITIONS=781} [2024-10-13 10:03:39,886 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, 272 predicate places. [2024-10-13 10:03:39,886 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 781 transitions, 15217 flow [2024-10-13 10:03:39,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 57.25) internal successors, (687), 12 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:39,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:39,886 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:39,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-13 10:03:40,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-13 10:03:40,087 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-10-13 10:03:40,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:40,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1313629989, now seen corresponding path program 5 times [2024-10-13 10:03:40,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:40,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589987652] [2024-10-13 10:03:40,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:40,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:40,698 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:40,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:40,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589987652] [2024-10-13 10:03:40,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589987652] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:40,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952150222] [2024-10-13 10:03:40,699 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-13 10:03:40,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:03:40,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:40,702 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:03:40,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-13 10:03:40,838 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 10:03:40,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:03:40,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-10-13 10:03:40,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:03:41,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 11 treesize of output 7 [2024-10-13 10:03:41,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 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 [2024-10-13 10:03:41,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 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 [2024-10-13 10:03:41,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 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 [2024-10-13 10:03:41,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:03:41,355 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:03:41,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 48 treesize of output 41 [2024-10-13 10:03:41,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:41,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:03:44,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:44,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952150222] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-13 10:03:44,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-13 10:03:44,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12, 14] total 34 [2024-10-13 10:03:44,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973110857] [2024-10-13 10:03:44,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:44,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 10:03:44,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:44,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 10:03:44,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1013, Unknown=0, NotChecked=0, Total=1190 [2024-10-13 10:03:48,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-13 10:03:52,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-13 10:03:55,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-13 10:03:57,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-10-13 10:04:01,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]