./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:30:29,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:30:29,229 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:30:29,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:30:29,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:30:29,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:30:29,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:30:29,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:30:29,255 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:30:29,255 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:30:29,256 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:30:29,256 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:30:29,257 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:30:29,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:30:29,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:30:29,258 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:30:29,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:30:29,259 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:30:29,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:30:29,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:30:29,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:30:29,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:30:29,261 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:30:29,261 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:30:29,261 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:30:29,262 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:30:29,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:30:29,262 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:30:29,263 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:30:29,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:30:29,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:30:29,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:30:29,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:30:29,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:30:29,265 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:30:29,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:30:29,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:30:29,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:30:29,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:30:29,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:30:29,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:30:29,267 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 [2024-11-10 14:30:29,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:30:29,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:30:29,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:30:29,557 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:30:29,557 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:30:29,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-11-10 14:30:30,997 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:30:31,254 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:30:31,255 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_17-arrayloop_nr.i [2024-11-10 14:30:31,279 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a986d37c7/81609c323265418eae787aa8f601b6fe/FLAG87e5f9635 [2024-11-10 14:30:31,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a986d37c7/81609c323265418eae787aa8f601b6fe [2024-11-10 14:30:31,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:30:31,565 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:30:31,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:30:31,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:30:31,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:30:31,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:30:31" (1/1) ... [2024-11-10 14:30:31,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7732c60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:31, skipping insertion in model container [2024-11-10 14:30:31,572 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:30:31" (1/1) ... [2024-11-10 14:30:31,619 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:30:32,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:30:32,166 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:30:32,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:30:32,333 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:30:32,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32 WrapperNode [2024-11-10 14:30:32,334 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:30:32,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:30:32,334 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:30:32,335 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:30:32,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32" (1/1) ... [2024-11-10 14:30:32,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32" (1/1) ... [2024-11-10 14:30:32,464 INFO L138 Inliner]: procedures = 370, calls = 86, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 289 [2024-11-10 14:30:32,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:30:32,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:30:32,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:30:32,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:30:32,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32" (1/1) ... [2024-11-10 14:30:32,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32" (1/1) ... [2024-11-10 14:30:32,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32" (1/1) ... [2024-11-10 14:30:32,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32" (1/1) ... [2024-11-10 14:30:32,527 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32" (1/1) ... [2024-11-10 14:30:32,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32" (1/1) ... [2024-11-10 14:30:32,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32" (1/1) ... [2024-11-10 14:30:32,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32" (1/1) ... [2024-11-10 14:30:32,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:30:32,552 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:30:32,553 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:30:32,553 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:30:32,554 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32" (1/1) ... [2024-11-10 14:30:32,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:30:32,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:30:32,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 14:30:32,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 14:30:32,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-10 14:30:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-10 14:30:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:30:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:30:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:30:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:30:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 14:30:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:30:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-10 14:30:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:30:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:30:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:30:32,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:30:32,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:30:32,643 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:30:32,780 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:30:32,782 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:30:33,408 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:30:33,410 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:30:33,441 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:30:33,441 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:30:33,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:30:33 BoogieIcfgContainer [2024-11-10 14:30:33,442 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:30:33,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:30:33,448 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:30:33,452 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:30:33,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:30:31" (1/3) ... [2024-11-10 14:30:33,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48950f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:30:33, skipping insertion in model container [2024-11-10 14:30:33,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:30:32" (2/3) ... [2024-11-10 14:30:33,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48950f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:30:33, skipping insertion in model container [2024-11-10 14:30:33,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:30:33" (3/3) ... [2024-11-10 14:30:33,456 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2024-11-10 14:30:33,474 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:30:33,474 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-10 14:30:33,475 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:30:33,586 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 14:30:33,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 327 transitions, 658 flow [2024-11-10 14:30:33,772 INFO L124 PetriNetUnfolderBase]: 6/326 cut-off events. [2024-11-10 14:30:33,773 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:30:33,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 326 events. 6/326 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 441 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 203. Up to 2 conditions per place. [2024-11-10 14:30:33,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 327 transitions, 658 flow [2024-11-10 14:30:33,794 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 324 places, 326 transitions, 655 flow [2024-11-10 14:30:33,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:30:33,820 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;@313c9000, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:30:33,820 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-10 14:30:33,850 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:30:33,851 INFO L124 PetriNetUnfolderBase]: 3/127 cut-off events. [2024-11-10 14:30:33,851 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:30:33,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:33,852 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:30:33,853 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:30:33,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:33,860 INFO L85 PathProgramCache]: Analyzing trace with hash 439078284, now seen corresponding path program 1 times [2024-11-10 14:30:33,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:33,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627180522] [2024-11-10 14:30:33,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:33,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:34,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:34,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:34,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627180522] [2024-11-10 14:30:34,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627180522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:34,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:34,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:30:34,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309533287] [2024-11-10 14:30:34,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:34,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:34,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:34,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:34,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:30:35,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 327 [2024-11-10 14:30:35,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 326 transitions, 655 flow. Second operand has 6 states, 6 states have (on average 242.33333333333334) internal successors, (1454), 6 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:35,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:35,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 327 [2024-11-10 14:30:35,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:36,806 INFO L124 PetriNetUnfolderBase]: 1265/4973 cut-off events. [2024-11-10 14:30:36,806 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:30:36,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7517 conditions, 4973 events. 1265/4973 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 36890 event pairs, 912 based on Foata normal form. 137/4699 useless extension candidates. Maximal degree in co-relation 7376. Up to 2359 conditions per place. [2024-11-10 14:30:36,847 INFO L140 encePairwiseOnDemand]: 287/327 looper letters, 84 selfloop transitions, 107 changer transitions 0/431 dead transitions. [2024-11-10 14:30:36,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 431 transitions, 1247 flow [2024-11-10 14:30:36,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:36,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:36,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1646 transitions. [2024-11-10 14:30:36,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8389398572884812 [2024-11-10 14:30:36,874 INFO L175 Difference]: Start difference. First operand has 324 places, 326 transitions, 655 flow. Second operand 6 states and 1646 transitions. [2024-11-10 14:30:36,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 431 transitions, 1247 flow [2024-11-10 14:30:36,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 431 transitions, 1246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:30:36,894 INFO L231 Difference]: Finished difference. Result has 332 places, 423 transitions, 1336 flow [2024-11-10 14:30:36,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1336, PETRI_PLACES=332, PETRI_TRANSITIONS=423} [2024-11-10 14:30:36,902 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 8 predicate places. [2024-11-10 14:30:36,903 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 423 transitions, 1336 flow [2024-11-10 14:30:36,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.33333333333334) internal successors, (1454), 6 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:36,904 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:36,904 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:30:36,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:30:36,905 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:30:36,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:36,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1950492721, now seen corresponding path program 1 times [2024-11-10 14:30:36,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:36,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228484385] [2024-11-10 14:30:36,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:36,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:37,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:37,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:37,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228484385] [2024-11-10 14:30:37,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228484385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:37,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:37,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:30:37,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101767579] [2024-11-10 14:30:37,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:37,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:37,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:37,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:37,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:30:38,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 327 [2024-11-10 14:30:38,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 423 transitions, 1336 flow. Second operand has 6 states, 6 states have (on average 242.33333333333334) internal successors, (1454), 6 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:38,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:38,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 327 [2024-11-10 14:30:38,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:39,119 INFO L124 PetriNetUnfolderBase]: 1531/5863 cut-off events. [2024-11-10 14:30:39,120 INFO L125 PetriNetUnfolderBase]: For 1217/1220 co-relation queries the response was YES. [2024-11-10 14:30:39,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10655 conditions, 5863 events. 1531/5863 cut-off events. For 1217/1220 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 45014 event pairs, 936 based on Foata normal form. 0/5419 useless extension candidates. Maximal degree in co-relation 10501. Up to 2637 conditions per place. [2024-11-10 14:30:39,158 INFO L140 encePairwiseOnDemand]: 290/327 looper letters, 180 selfloop transitions, 107 changer transitions 0/531 dead transitions. [2024-11-10 14:30:39,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 531 transitions, 2318 flow [2024-11-10 14:30:39,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:39,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:39,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1639 transitions. [2024-11-10 14:30:39,164 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8353720693170235 [2024-11-10 14:30:39,164 INFO L175 Difference]: Start difference. First operand has 332 places, 423 transitions, 1336 flow. Second operand 6 states and 1639 transitions. [2024-11-10 14:30:39,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 531 transitions, 2318 flow [2024-11-10 14:30:39,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 531 transitions, 2318 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:30:39,187 INFO L231 Difference]: Finished difference. Result has 341 places, 523 transitions, 2216 flow [2024-11-10 14:30:39,188 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=1334, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2216, PETRI_PLACES=341, PETRI_TRANSITIONS=523} [2024-11-10 14:30:39,189 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 17 predicate places. [2024-11-10 14:30:39,189 INFO L471 AbstractCegarLoop]: Abstraction has has 341 places, 523 transitions, 2216 flow [2024-11-10 14:30:39,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.33333333333334) internal successors, (1454), 6 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:39,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:39,191 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:30:39,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:30:39,192 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:30:39,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:39,193 INFO L85 PathProgramCache]: Analyzing trace with hash -770246166, now seen corresponding path program 1 times [2024-11-10 14:30:39,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:39,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851274541] [2024-11-10 14:30:39,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:39,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:39,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:39,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:39,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851274541] [2024-11-10 14:30:39,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851274541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:39,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:39,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:30:39,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831275200] [2024-11-10 14:30:39,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:39,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:30:39,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:39,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:30:39,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:30:39,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 327 [2024-11-10 14:30:39,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 523 transitions, 2216 flow. Second operand has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:39,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:39,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 327 [2024-11-10 14:30:39,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:40,244 INFO L124 PetriNetUnfolderBase]: 1081/4455 cut-off events. [2024-11-10 14:30:40,244 INFO L125 PetriNetUnfolderBase]: For 1100/1106 co-relation queries the response was YES. [2024-11-10 14:30:40,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8865 conditions, 4455 events. 1081/4455 cut-off events. For 1100/1106 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 28827 event pairs, 108 based on Foata normal form. 4/4213 useless extension candidates. Maximal degree in co-relation 8642. Up to 1137 conditions per place. [2024-11-10 14:30:40,272 INFO L140 encePairwiseOnDemand]: 321/327 looper letters, 16 selfloop transitions, 4 changer transitions 0/529 dead transitions. [2024-11-10 14:30:40,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 529 transitions, 2268 flow [2024-11-10 14:30:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:30:40,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:30:40,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2024-11-10 14:30:40,275 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9704383282364933 [2024-11-10 14:30:40,275 INFO L175 Difference]: Start difference. First operand has 341 places, 523 transitions, 2216 flow. Second operand 3 states and 952 transitions. [2024-11-10 14:30:40,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 529 transitions, 2268 flow [2024-11-10 14:30:40,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 529 transitions, 2076 flow, removed 96 selfloop flow, removed 0 redundant places. [2024-11-10 14:30:40,293 INFO L231 Difference]: Finished difference. Result has 344 places, 525 transitions, 2048 flow [2024-11-10 14:30:40,294 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=2024, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=523, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2048, PETRI_PLACES=344, PETRI_TRANSITIONS=525} [2024-11-10 14:30:40,294 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 20 predicate places. [2024-11-10 14:30:40,295 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 525 transitions, 2048 flow [2024-11-10 14:30:40,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:40,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:40,296 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:30:40,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:30:40,297 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:30:40,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:40,297 INFO L85 PathProgramCache]: Analyzing trace with hash -2094762968, now seen corresponding path program 1 times [2024-11-10 14:30:40,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:40,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614062064] [2024-11-10 14:30:40,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:40,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:40,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:40,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:40,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614062064] [2024-11-10 14:30:40,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614062064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:40,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:30:40,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:30:40,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690050048] [2024-11-10 14:30:40,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:40,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:40,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:40,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:40,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:30:41,285 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 327 [2024-11-10 14:30:41,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 525 transitions, 2048 flow. Second operand has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:41,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:41,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 327 [2024-11-10 14:30:41,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:43,518 INFO L124 PetriNetUnfolderBase]: 2970/10761 cut-off events. [2024-11-10 14:30:43,518 INFO L125 PetriNetUnfolderBase]: For 5996/6095 co-relation queries the response was YES. [2024-11-10 14:30:43,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23817 conditions, 10761 events. 2970/10761 cut-off events. For 5996/6095 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 85634 event pairs, 1872 based on Foata normal form. 0/10218 useless extension candidates. Maximal degree in co-relation 23559. Up to 5591 conditions per place. [2024-11-10 14:30:43,599 INFO L140 encePairwiseOnDemand]: 321/327 looper letters, 285 selfloop transitions, 5 changer transitions 0/524 dead transitions. [2024-11-10 14:30:43,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 524 transitions, 2626 flow [2024-11-10 14:30:43,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:43,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:43,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1489 transitions. [2024-11-10 14:30:43,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7589194699286442 [2024-11-10 14:30:43,603 INFO L175 Difference]: Start difference. First operand has 344 places, 525 transitions, 2048 flow. Second operand 6 states and 1489 transitions. [2024-11-10 14:30:43,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 524 transitions, 2626 flow [2024-11-10 14:30:43,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 524 transitions, 2622 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:30:43,624 INFO L231 Difference]: Finished difference. Result has 347 places, 524 transitions, 2052 flow [2024-11-10 14:30:43,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=2042, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2052, PETRI_PLACES=347, PETRI_TRANSITIONS=524} [2024-11-10 14:30:43,625 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 23 predicate places. [2024-11-10 14:30:43,625 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 524 transitions, 2052 flow [2024-11-10 14:30:43,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:43,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:43,627 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:30:43,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:30:43,627 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:30:43,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:43,628 INFO L85 PathProgramCache]: Analyzing trace with hash 430903765, now seen corresponding path program 1 times [2024-11-10 14:30:43,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:43,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963223360] [2024-11-10 14:30:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:43,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:43,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:43,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:43,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963223360] [2024-11-10 14:30:43,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963223360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:30:43,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216389232] [2024-11-10 14:30:43,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:43,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:43,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:30:43,821 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:30:43,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:30:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:44,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:30:44,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:30:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:44,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:30:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:44,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216389232] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:30:44,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:30:44,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:30:44,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793765095] [2024-11-10 14:30:44,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:30:44,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:30:44,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:44,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:30:44,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:30:44,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 327 [2024-11-10 14:30:44,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 524 transitions, 2052 flow. Second operand has 10 states, 10 states have (on average 308.0) internal successors, (3080), 10 states have internal predecessors, (3080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:44,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:44,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 327 [2024-11-10 14:30:44,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:45,596 INFO L124 PetriNetUnfolderBase]: 1095/4613 cut-off events. [2024-11-10 14:30:45,597 INFO L125 PetriNetUnfolderBase]: For 686/692 co-relation queries the response was YES. [2024-11-10 14:30:45,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8916 conditions, 4613 events. 1095/4613 cut-off events. For 686/692 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 29508 event pairs, 106 based on Foata normal form. 2/4358 useless extension candidates. Maximal degree in co-relation 8617. Up to 922 conditions per place. [2024-11-10 14:30:45,633 INFO L140 encePairwiseOnDemand]: 318/327 looper letters, 22 selfloop transitions, 13 changer transitions 0/539 dead transitions. [2024-11-10 14:30:45,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 539 transitions, 2154 flow [2024-11-10 14:30:45,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:30:45,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:30:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2791 transitions. [2024-11-10 14:30:45,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9483520217465171 [2024-11-10 14:30:45,644 INFO L175 Difference]: Start difference. First operand has 347 places, 524 transitions, 2052 flow. Second operand 9 states and 2791 transitions. [2024-11-10 14:30:45,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 539 transitions, 2154 flow [2024-11-10 14:30:45,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 539 transitions, 2144 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:30:45,664 INFO L231 Difference]: Finished difference. Result has 353 places, 531 transitions, 2110 flow [2024-11-10 14:30:45,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=2042, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2110, PETRI_PLACES=353, PETRI_TRANSITIONS=531} [2024-11-10 14:30:45,669 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 29 predicate places. [2024-11-10 14:30:45,670 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 531 transitions, 2110 flow [2024-11-10 14:30:45,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 308.0) internal successors, (3080), 10 states have internal predecessors, (3080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:45,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:45,673 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:30:45,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 14:30:45,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:45,874 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:30:45,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:45,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1765658517, now seen corresponding path program 2 times [2024-11-10 14:30:45,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:45,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535468272] [2024-11-10 14:30:45,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:45,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:46,353 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:46,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:46,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535468272] [2024-11-10 14:30:46,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535468272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:30:46,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942452477] [2024-11-10 14:30:46,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:30:46,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:46,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:30:46,358 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:30:46,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:30:46,520 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:30:46,520 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:30:46,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 14:30:46,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:30:46,564 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 [2024-11-10 14:30:46,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 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 [2024-11-10 14:30:46,611 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:30:46,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-10 14:30:46,653 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:30:46,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-10 14:30:46,682 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-10 14:30:46,682 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:30:46,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942452477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:46,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:30:46,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-10 14:30:46,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294692501] [2024-11-10 14:30:46,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:46,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:46,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:46,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:46,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:30:47,065 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 327 [2024-11-10 14:30:47,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 531 transitions, 2110 flow. Second operand has 6 states, 6 states have (on average 247.66666666666666) internal successors, (1486), 6 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:47,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:47,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 327 [2024-11-10 14:30:47,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:49,934 INFO L124 PetriNetUnfolderBase]: 3572/12380 cut-off events. [2024-11-10 14:30:49,934 INFO L125 PetriNetUnfolderBase]: For 5270/5352 co-relation queries the response was YES. [2024-11-10 14:30:49,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26894 conditions, 12380 events. 3572/12380 cut-off events. For 5270/5352 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 98902 event pairs, 1616 based on Foata normal form. 0/11623 useless extension candidates. Maximal degree in co-relation 26556. Up to 6064 conditions per place. [2024-11-10 14:30:50,047 INFO L140 encePairwiseOnDemand]: 284/327 looper letters, 245 selfloop transitions, 170 changer transitions 0/700 dead transitions. [2024-11-10 14:30:50,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 700 transitions, 3418 flow [2024-11-10 14:30:50,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:50,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:50,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1702 transitions. [2024-11-10 14:30:50,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8674821610601428 [2024-11-10 14:30:50,054 INFO L175 Difference]: Start difference. First operand has 353 places, 531 transitions, 2110 flow. Second operand 6 states and 1702 transitions. [2024-11-10 14:30:50,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 700 transitions, 3418 flow [2024-11-10 14:30:50,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 700 transitions, 3408 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-10 14:30:50,094 INFO L231 Difference]: Finished difference. Result has 362 places, 692 transitions, 3350 flow [2024-11-10 14:30:50,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=2100, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3350, PETRI_PLACES=362, PETRI_TRANSITIONS=692} [2024-11-10 14:30:50,097 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 38 predicate places. [2024-11-10 14:30:50,097 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 692 transitions, 3350 flow [2024-11-10 14:30:50,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 247.66666666666666) internal successors, (1486), 6 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:50,099 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:50,100 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:30:50,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 14:30:50,300 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,SelfDestructingSolverStorable5 [2024-11-10 14:30:50,301 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:30:50,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:50,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1826667375, now seen corresponding path program 1 times [2024-11-10 14:30:50,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:50,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428569813] [2024-11-10 14:30:50,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:50,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:50,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:50,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428569813] [2024-11-10 14:30:50,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428569813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:30:50,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207207047] [2024-11-10 14:30:50,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:50,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:50,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:30:50,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:30:50,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 14:30:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:50,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 14:30:51,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:30:51,236 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:51,237 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:30:51,487 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:51,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207207047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:30:51,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:30:51,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-10 14:30:51,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377132650] [2024-11-10 14:30:51,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:30:51,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 14:30:51,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:51,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 14:30:51,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 14:30:51,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 327 [2024-11-10 14:30:51,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 692 transitions, 3350 flow. Second operand has 18 states, 18 states have (on average 308.0) internal successors, (5544), 18 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:51,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:51,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 327 [2024-11-10 14:30:51,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:53,448 INFO L124 PetriNetUnfolderBase]: 1777/6963 cut-off events. [2024-11-10 14:30:53,448 INFO L125 PetriNetUnfolderBase]: For 3088/3186 co-relation queries the response was YES. [2024-11-10 14:30:53,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16068 conditions, 6963 events. 1777/6963 cut-off events. For 3088/3186 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 48424 event pairs, 163 based on Foata normal form. 4/6661 useless extension candidates. Maximal degree in co-relation 15459. Up to 1392 conditions per place. [2024-11-10 14:30:53,508 INFO L140 encePairwiseOnDemand]: 318/327 looper letters, 26 selfloop transitions, 25 changer transitions 0/716 dead transitions. [2024-11-10 14:30:53,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 716 transitions, 3552 flow [2024-11-10 14:30:53,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 14:30:53,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 14:30:53,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 6481 transitions. [2024-11-10 14:30:53,520 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9437891364496869 [2024-11-10 14:30:53,520 INFO L175 Difference]: Start difference. First operand has 362 places, 692 transitions, 3350 flow. Second operand 21 states and 6481 transitions. [2024-11-10 14:30:53,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 716 transitions, 3552 flow [2024-11-10 14:30:53,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 716 transitions, 3516 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-11-10 14:30:53,568 INFO L231 Difference]: Finished difference. Result has 387 places, 705 transitions, 3458 flow [2024-11-10 14:30:53,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=3314, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=692, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=677, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3458, PETRI_PLACES=387, PETRI_TRANSITIONS=705} [2024-11-10 14:30:53,570 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 63 predicate places. [2024-11-10 14:30:53,570 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 705 transitions, 3458 flow [2024-11-10 14:30:53,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 308.0) internal successors, (5544), 18 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:53,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:53,574 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:30:53,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 14:30:53,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:53,776 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:30:53,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:53,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1454573467, now seen corresponding path program 2 times [2024-11-10 14:30:53,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:53,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946004337] [2024-11-10 14:30:53,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:53,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:30:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:30:54,701 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 0 proven. 896 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:30:54,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:30:54,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946004337] [2024-11-10 14:30:54,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946004337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:30:54,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772242897] [2024-11-10 14:30:54,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:30:54,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:54,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:30:54,706 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) [2024-11-10 14:30:54,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 14:30:54,943 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:30:54,943 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:30:54,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 14:30:54,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:30:54,968 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 13 treesize of output 9 [2024-11-10 14:30:54,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-10 14:30:55,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:30:55,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-11-10 14:30:55,060 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:30:55,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-10 14:30:55,096 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2024-11-10 14:30:55,097 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:30:55,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772242897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:30:55,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:30:55,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-10 14:30:55,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380965540] [2024-11-10 14:30:55,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:30:55,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:30:55,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:30:55,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:30:55,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-10 14:30:55,467 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 327 [2024-11-10 14:30:55,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 705 transitions, 3458 flow. Second operand has 6 states, 6 states have (on average 247.66666666666666) internal successors, (1486), 6 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:55,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:30:55,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 327 [2024-11-10 14:30:55,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:30:59,606 INFO L124 PetriNetUnfolderBase]: 4263/14761 cut-off events. [2024-11-10 14:30:59,606 INFO L125 PetriNetUnfolderBase]: For 10363/10500 co-relation queries the response was YES. [2024-11-10 14:30:59,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37092 conditions, 14761 events. 4263/14761 cut-off events. For 10363/10500 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 120157 event pairs, 1677 based on Foata normal form. 0/13960 useless extension candidates. Maximal degree in co-relation 36390. Up to 6897 conditions per place. [2024-11-10 14:30:59,694 INFO L140 encePairwiseOnDemand]: 284/327 looper letters, 395 selfloop transitions, 170 changer transitions 0/874 dead transitions. [2024-11-10 14:30:59,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 874 transitions, 5366 flow [2024-11-10 14:30:59,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:30:59,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:30:59,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1702 transitions. [2024-11-10 14:30:59,700 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8674821610601428 [2024-11-10 14:30:59,700 INFO L175 Difference]: Start difference. First operand has 387 places, 705 transitions, 3458 flow. Second operand 6 states and 1702 transitions. [2024-11-10 14:30:59,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 874 transitions, 5366 flow [2024-11-10 14:30:59,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 874 transitions, 5340 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-10 14:30:59,764 INFO L231 Difference]: Finished difference. Result has 391 places, 866 transitions, 4982 flow [2024-11-10 14:30:59,765 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=3432, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=705, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=643, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4982, PETRI_PLACES=391, PETRI_TRANSITIONS=866} [2024-11-10 14:30:59,767 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 67 predicate places. [2024-11-10 14:30:59,768 INFO L471 AbstractCegarLoop]: Abstraction has has 391 places, 866 transitions, 4982 flow [2024-11-10 14:30:59,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 247.66666666666666) internal successors, (1486), 6 states have internal predecessors, (1486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:30:59,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:30:59,769 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:30:59,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 14:30:59,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:30:59,974 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:30:59,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:30:59,975 INFO L85 PathProgramCache]: Analyzing trace with hash 730025279, now seen corresponding path program 1 times [2024-11-10 14:30:59,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:30:59,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319373379] [2024-11-10 14:30:59,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:30:59,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:00,996 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 0 proven. 896 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:00,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:00,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319373379] [2024-11-10 14:31:00,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319373379] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:31:00,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246179061] [2024-11-10 14:31:00,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:00,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:31:00,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:31:00,999 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) [2024-11-10 14:31:01,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 14:31:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:01,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 1423 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 14:31:01,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:31:01,776 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 0 proven. 896 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:01,776 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:31:02,316 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 0 proven. 896 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:31:02,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246179061] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:31:02,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:31:02,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-10 14:31:02,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914535050] [2024-11-10 14:31:02,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:31:02,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 14:31:02,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:02,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 14:31:02,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-10 14:31:02,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 327 [2024-11-10 14:31:02,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 866 transitions, 4982 flow. Second operand has 23 states, 23 states have (on average 308.2173913043478) internal successors, (7089), 23 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:31:02,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:02,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 327 [2024-11-10 14:31:02,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:05,089 INFO L124 PetriNetUnfolderBase]: 2466/9311 cut-off events. [2024-11-10 14:31:05,089 INFO L125 PetriNetUnfolderBase]: For 7393/7564 co-relation queries the response was YES. [2024-11-10 14:31:05,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24414 conditions, 9311 events. 2466/9311 cut-off events. For 7393/7564 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 68190 event pairs, 224 based on Foata normal form. 3/8950 useless extension candidates. Maximal degree in co-relation 23539. Up to 2107 conditions per place. [2024-11-10 14:31:05,139 INFO L140 encePairwiseOnDemand]: 318/327 looper letters, 29 selfloop transitions, 34 changer transitions 0/889 dead transitions. [2024-11-10 14:31:05,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 889 transitions, 5242 flow [2024-11-10 14:31:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-10 14:31:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-10 14:31:05,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 9246 transitions. [2024-11-10 14:31:05,157 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9425076452599388 [2024-11-10 14:31:05,157 INFO L175 Difference]: Start difference. First operand has 391 places, 866 transitions, 4982 flow. Second operand 30 states and 9246 transitions. [2024-11-10 14:31:05,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 889 transitions, 5242 flow [2024-11-10 14:31:05,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 889 transitions, 4906 flow, removed 168 selfloop flow, removed 0 redundant places. [2024-11-10 14:31:05,235 INFO L231 Difference]: Finished difference. Result has 424 places, 876 transitions, 4812 flow [2024-11-10 14:31:05,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=4646, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=866, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=839, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=4812, PETRI_PLACES=424, PETRI_TRANSITIONS=876} [2024-11-10 14:31:05,237 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 100 predicate places. [2024-11-10 14:31:05,237 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 876 transitions, 4812 flow [2024-11-10 14:31:05,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 308.2173913043478) internal successors, (7089), 23 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:31:05,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:05,239 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:05,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 14:31:05,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:31:05,441 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:05,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1968167146, now seen corresponding path program 2 times [2024-11-10 14:31:05,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:05,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909270716] [2024-11-10 14:31:05,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:05,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:08,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1910 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1910 trivial. 0 not checked. [2024-11-10 14:31:08,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:08,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909270716] [2024-11-10 14:31:08,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909270716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:08,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:08,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 14:31:08,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531386170] [2024-11-10 14:31:08,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:08,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 14:31:08,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:08,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 14:31:08,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-10 14:31:08,978 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 327 [2024-11-10 14:31:08,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 876 transitions, 4812 flow. Second operand has 11 states, 11 states have (on average 235.0909090909091) internal successors, (2586), 11 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:31:08,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:08,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 327 [2024-11-10 14:31:08,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:14,480 INFO L124 PetriNetUnfolderBase]: 4877/16157 cut-off events. [2024-11-10 14:31:14,480 INFO L125 PetriNetUnfolderBase]: For 17257/17692 co-relation queries the response was YES. [2024-11-10 14:31:14,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46766 conditions, 16157 events. 4877/16157 cut-off events. For 17257/17692 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 130176 event pairs, 1704 based on Foata normal form. 20/15455 useless extension candidates. Maximal degree in co-relation 45729. Up to 5419 conditions per place. [2024-11-10 14:31:14,566 INFO L140 encePairwiseOnDemand]: 279/327 looper letters, 591 selfloop transitions, 145 changer transitions 0/1044 dead transitions. [2024-11-10 14:31:14,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 1044 transitions, 7266 flow [2024-11-10 14:31:14,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-10 14:31:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-10 14:31:14,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3116 transitions. [2024-11-10 14:31:14,572 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7940876656472987 [2024-11-10 14:31:14,572 INFO L175 Difference]: Start difference. First operand has 424 places, 876 transitions, 4812 flow. Second operand 12 states and 3116 transitions. [2024-11-10 14:31:14,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 1044 transitions, 7266 flow [2024-11-10 14:31:14,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1044 transitions, 7218 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-10 14:31:14,665 INFO L231 Difference]: Finished difference. Result has 422 places, 895 transitions, 5390 flow [2024-11-10 14:31:14,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=4764, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=876, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=735, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5390, PETRI_PLACES=422, PETRI_TRANSITIONS=895} [2024-11-10 14:31:14,667 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 98 predicate places. [2024-11-10 14:31:14,667 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 895 transitions, 5390 flow [2024-11-10 14:31:14,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 235.0909090909091) internal successors, (2586), 11 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:31:14,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:14,669 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:14,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:31:14,669 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:14,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:14,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1893902950, now seen corresponding path program 3 times [2024-11-10 14:31:14,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:14,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449308838] [2024-11-10 14:31:14,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:14,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:16,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1910 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1910 trivial. 0 not checked. [2024-11-10 14:31:16,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:16,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449308838] [2024-11-10 14:31:16,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449308838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:16,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:16,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 14:31:16,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663455226] [2024-11-10 14:31:16,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:16,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 14:31:16,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:16,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 14:31:16,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-10 14:31:17,734 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 327 [2024-11-10 14:31:17,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 895 transitions, 5390 flow. Second operand has 11 states, 11 states have (on average 235.0909090909091) internal successors, (2586), 11 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:31:17,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:17,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 327 [2024-11-10 14:31:17,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:23,746 INFO L124 PetriNetUnfolderBase]: 5770/18348 cut-off events. [2024-11-10 14:31:23,747 INFO L125 PetriNetUnfolderBase]: For 24671/24879 co-relation queries the response was YES. [2024-11-10 14:31:23,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57887 conditions, 18348 events. 5770/18348 cut-off events. For 24671/24879 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 149450 event pairs, 1608 based on Foata normal form. 82/17753 useless extension candidates. Maximal degree in co-relation 56747. Up to 4534 conditions per place. [2024-11-10 14:31:23,860 INFO L140 encePairwiseOnDemand]: 286/327 looper letters, 868 selfloop transitions, 148 changer transitions 0/1324 dead transitions. [2024-11-10 14:31:23,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 1324 transitions, 10840 flow [2024-11-10 14:31:23,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-10 14:31:23,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-10 14:31:23,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 5684 transitions. [2024-11-10 14:31:23,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7557505650844303 [2024-11-10 14:31:23,865 INFO L175 Difference]: Start difference. First operand has 422 places, 895 transitions, 5390 flow. Second operand 23 states and 5684 transitions. [2024-11-10 14:31:23,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 1324 transitions, 10840 flow [2024-11-10 14:31:23,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 1324 transitions, 10626 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-10 14:31:23,954 INFO L231 Difference]: Finished difference. Result has 455 places, 1024 transitions, 7054 flow [2024-11-10 14:31:23,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=5274, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=895, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=789, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=7054, PETRI_PLACES=455, PETRI_TRANSITIONS=1024} [2024-11-10 14:31:23,955 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 131 predicate places. [2024-11-10 14:31:23,955 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 1024 transitions, 7054 flow [2024-11-10 14:31:23,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 235.0909090909091) internal successors, (2586), 11 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:31:23,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:23,956 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:23,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 14:31:23,957 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:23,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:23,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1571480440, now seen corresponding path program 4 times [2024-11-10 14:31:23,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:23,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864983839] [2024-11-10 14:31:23,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:23,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:26,166 INFO L134 CoverageAnalysis]: Checked inductivity of 1910 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1910 trivial. 0 not checked. [2024-11-10 14:31:26,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:26,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864983839] [2024-11-10 14:31:26,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864983839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:26,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:26,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 14:31:26,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718604748] [2024-11-10 14:31:26,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:26,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 14:31:26,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:26,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 14:31:26,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-10 14:31:27,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 327 [2024-11-10 14:31:27,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 1024 transitions, 7054 flow. Second operand has 11 states, 11 states have (on average 235.0909090909091) internal successors, (2586), 11 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:31:27,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:27,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 327 [2024-11-10 14:31:27,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:34,161 INFO L124 PetriNetUnfolderBase]: 5852/18592 cut-off events. [2024-11-10 14:31:34,161 INFO L125 PetriNetUnfolderBase]: For 34145/34591 co-relation queries the response was YES. [2024-11-10 14:31:34,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62885 conditions, 18592 events. 5852/18592 cut-off events. For 34145/34591 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 151734 event pairs, 1708 based on Foata normal form. 50/17910 useless extension candidates. Maximal degree in co-relation 61758. Up to 5461 conditions per place. [2024-11-10 14:31:34,317 INFO L140 encePairwiseOnDemand]: 279/327 looper letters, 661 selfloop transitions, 237 changer transitions 0/1206 dead transitions. [2024-11-10 14:31:34,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 1206 transitions, 10251 flow [2024-11-10 14:31:34,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 14:31:34,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 14:31:34,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3352 transitions. [2024-11-10 14:31:34,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7885203481533757 [2024-11-10 14:31:34,322 INFO L175 Difference]: Start difference. First operand has 455 places, 1024 transitions, 7054 flow. Second operand 13 states and 3352 transitions. [2024-11-10 14:31:34,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 1206 transitions, 10251 flow [2024-11-10 14:31:34,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 1206 transitions, 10139 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-10 14:31:34,520 INFO L231 Difference]: Finished difference. Result has 472 places, 1053 transitions, 8215 flow [2024-11-10 14:31:34,520 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=6988, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1024, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=210, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=796, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8215, PETRI_PLACES=472, PETRI_TRANSITIONS=1053} [2024-11-10 14:31:34,521 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 148 predicate places. [2024-11-10 14:31:34,521 INFO L471 AbstractCegarLoop]: Abstraction has has 472 places, 1053 transitions, 8215 flow [2024-11-10 14:31:34,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 235.0909090909091) internal successors, (2586), 11 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:31:34,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:34,523 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:34,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 14:31:34,524 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:34,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:34,524 INFO L85 PathProgramCache]: Analyzing trace with hash -465293878, now seen corresponding path program 5 times [2024-11-10 14:31:34,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:34,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179862647] [2024-11-10 14:31:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:34,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:31:36,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1910 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1910 trivial. 0 not checked. [2024-11-10 14:31:36,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:31:36,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179862647] [2024-11-10 14:31:36,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179862647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:31:36,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:31:36,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 14:31:36,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557556209] [2024-11-10 14:31:36,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:31:36,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 14:31:36,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:31:36,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 14:31:36,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-10 14:31:37,047 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 327 [2024-11-10 14:31:37,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 1053 transitions, 8215 flow. Second operand has 11 states, 11 states have (on average 235.0909090909091) internal successors, (2586), 11 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:31:37,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:31:37,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 327 [2024-11-10 14:31:37,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:31:44,586 INFO L124 PetriNetUnfolderBase]: 6728/20694 cut-off events. [2024-11-10 14:31:44,587 INFO L125 PetriNetUnfolderBase]: For 53404/54102 co-relation queries the response was YES. [2024-11-10 14:31:44,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76662 conditions, 20694 events. 6728/20694 cut-off events. For 53404/54102 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 171675 event pairs, 2033 based on Foata normal form. 98/20016 useless extension candidates. Maximal degree in co-relation 75397. Up to 9355 conditions per place. [2024-11-10 14:31:44,807 INFO L140 encePairwiseOnDemand]: 286/327 looper letters, 860 selfloop transitions, 197 changer transitions 0/1365 dead transitions. [2024-11-10 14:31:44,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 1365 transitions, 13670 flow [2024-11-10 14:31:44,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 14:31:44,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-10 14:31:44,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4906 transitions. [2024-11-10 14:31:44,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7501529051987768 [2024-11-10 14:31:44,813 INFO L175 Difference]: Start difference. First operand has 472 places, 1053 transitions, 8215 flow. Second operand 20 states and 4906 transitions. [2024-11-10 14:31:44,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 1365 transitions, 13670 flow [2024-11-10 14:31:45,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 1365 transitions, 13382 flow, removed 26 selfloop flow, removed 6 redundant places. [2024-11-10 14:31:45,087 INFO L231 Difference]: Finished difference. Result has 500 places, 1165 transitions, 10416 flow [2024-11-10 14:31:45,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=327, PETRI_DIFFERENCE_MINUEND_FLOW=8026, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=884, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=10416, PETRI_PLACES=500, PETRI_TRANSITIONS=1165} [2024-11-10 14:31:45,089 INFO L277 CegarLoopForPetriNet]: 324 programPoint places, 176 predicate places. [2024-11-10 14:31:45,089 INFO L471 AbstractCegarLoop]: Abstraction has has 500 places, 1165 transitions, 10416 flow [2024-11-10 14:31:45,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 235.0909090909091) internal successors, (2586), 11 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:31:45,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:31:45,090 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:31:45,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 14:31:45,091 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-11-10 14:31:45,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:31:45,091 INFO L85 PathProgramCache]: Analyzing trace with hash 696705514, now seen corresponding path program 6 times [2024-11-10 14:31:45,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:31:45,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778375242] [2024-11-10 14:31:45,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:31:45,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:31:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat