./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_19-nested_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 e4a3fff277216174585e9d802eee36c2b619da26d56e48ed5261f2ab62942b7a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:51:12,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:51:12,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:51:12,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:51:12,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:51:12,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:51:12,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:51:12,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:51:12,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:51:12,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:51:12,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:51:12,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:51:12,664 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:51:12,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:51:12,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:51:12,665 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:51:12,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:51:12,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:51:12,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:51:12,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:51:12,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:51:12,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:51:12,670 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:51:12,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:51:12,671 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:51:12,671 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:51:12,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:51:12,671 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:51:12,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:51:12,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:51:12,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:51:12,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:51:12,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:51:12,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:51:12,673 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:51:12,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:51:12,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:51:12,674 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:51:12,674 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:51:12,674 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:51:12,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:51:12,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4a3fff277216174585e9d802eee36c2b619da26d56e48ed5261f2ab62942b7a [2024-10-13 09:51:12,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:51:12,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:51:12,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:51:12,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:51:12,992 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:51:12,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i [2024-10-13 09:51:14,451 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:51:14,741 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:51:14,742 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i [2024-10-13 09:51:14,765 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/909a01151/79d64e062f244003bb41baf979638aa5/FLAG04401cfa1 [2024-10-13 09:51:14,781 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/909a01151/79d64e062f244003bb41baf979638aa5 [2024-10-13 09:51:14,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:51:14,786 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:51:14,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:51:14,788 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:51:14,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:51:14,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:51:14" (1/1) ... [2024-10-13 09:51:14,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4310a0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:14, skipping insertion in model container [2024-10-13 09:51:14,802 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:51:14" (1/1) ... [2024-10-13 09:51:14,858 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:51:15,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:51:15,429 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:51:15,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:51:15,594 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:51:15,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15 WrapperNode [2024-10-13 09:51:15,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:51:15,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:51:15,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:51:15,596 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:51:15,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15" (1/1) ... [2024-10-13 09:51:15,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15" (1/1) ... [2024-10-13 09:51:15,681 INFO L138 Inliner]: procedures = 370, calls = 27, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 240 [2024-10-13 09:51:15,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:51:15,684 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:51:15,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:51:15,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:51:15,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15" (1/1) ... [2024-10-13 09:51:15,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15" (1/1) ... [2024-10-13 09:51:15,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15" (1/1) ... [2024-10-13 09:51:15,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15" (1/1) ... [2024-10-13 09:51:15,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15" (1/1) ... [2024-10-13 09:51:15,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15" (1/1) ... [2024-10-13 09:51:15,746 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15" (1/1) ... [2024-10-13 09:51:15,748 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15" (1/1) ... [2024-10-13 09:51:15,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:51:15,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:51:15,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:51:15,752 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:51:15,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15" (1/1) ... [2024-10-13 09:51:15,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:51:15,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:15,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:51:15,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:51:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-13 09:51:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:51:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:51:15,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:51:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:51:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 09:51:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:51:15,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-13 09:51:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:51:15,865 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:51:15,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:51:15,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:51:15,866 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:51:16,078 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:51:16,081 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:51:16,561 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:51:16,561 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:51:16,602 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:51:16,602 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 09:51:16,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:51:16 BoogieIcfgContainer [2024-10-13 09:51:16,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:51:16,605 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:51:16,605 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:51:16,609 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:51:16,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:51:14" (1/3) ... [2024-10-13 09:51:16,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3c4190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:51:16, skipping insertion in model container [2024-10-13 09:51:16,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:15" (2/3) ... [2024-10-13 09:51:16,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3c4190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:51:16, skipping insertion in model container [2024-10-13 09:51:16,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:51:16" (3/3) ... [2024-10-13 09:51:16,612 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_19-nested_nr.i [2024-10-13 09:51:16,624 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:51:16,625 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-13 09:51:16,625 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:51:16,735 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:51:16,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 279 places, 281 transitions, 566 flow [2024-10-13 09:51:16,909 INFO L124 PetriNetUnfolderBase]: 6/280 cut-off events. [2024-10-13 09:51:16,910 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:51:16,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 280 events. 6/280 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 401 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2024-10-13 09:51:16,918 INFO L82 GeneralOperation]: Start removeDead. Operand has 279 places, 281 transitions, 566 flow [2024-10-13 09:51:16,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 278 places, 280 transitions, 563 flow [2024-10-13 09:51:16,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:51:16,952 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;@68737e29, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:51:16,952 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-13 09:51:16,971 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:51:16,972 INFO L124 PetriNetUnfolderBase]: 4/69 cut-off events. [2024-10-13 09:51:16,972 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:51:16,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:16,974 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:16,974 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:16,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:16,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1393934220, now seen corresponding path program 1 times [2024-10-13 09:51:16,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:16,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992921905] [2024-10-13 09:51:16,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:16,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:17,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:17,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:17,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992921905] [2024-10-13 09:51:17,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992921905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:17,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:17,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:51:17,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225367415] [2024-10-13 09:51:17,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:17,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:51:17,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:17,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:51:17,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:51:17,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 281 [2024-10-13 09:51:17,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 280 transitions, 563 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:17,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:17,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 281 [2024-10-13 09:51:17,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:17,616 INFO L124 PetriNetUnfolderBase]: 8/356 cut-off events. [2024-10-13 09:51:17,616 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:51:17,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 356 events. 8/356 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 874 event pairs, 6 based on Foata normal form. 6/331 useless extension candidates. Maximal degree in co-relation 219. Up to 24 conditions per place. [2024-10-13 09:51:17,621 INFO L140 encePairwiseOnDemand]: 274/281 looper letters, 10 selfloop transitions, 2 changer transitions 1/277 dead transitions. [2024-10-13 09:51:17,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 277 transitions, 581 flow [2024-10-13 09:51:17,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:51:17,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:51:17,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2024-10-13 09:51:17,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9679715302491103 [2024-10-13 09:51:17,648 INFO L175 Difference]: Start difference. First operand has 278 places, 280 transitions, 563 flow. Second operand 3 states and 816 transitions. [2024-10-13 09:51:17,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 277 transitions, 581 flow [2024-10-13 09:51:17,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 277 transitions, 580 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:17,663 INFO L231 Difference]: Finished difference. Result has 280 places, 276 transitions, 564 flow [2024-10-13 09:51:17,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=564, PETRI_PLACES=280, PETRI_TRANSITIONS=276} [2024-10-13 09:51:17,669 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 2 predicate places. [2024-10-13 09:51:17,670 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 276 transitions, 564 flow [2024-10-13 09:51:17,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:17,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:17,672 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] [2024-10-13 09:51:17,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:51:17,672 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:17,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:17,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1411063159, now seen corresponding path program 1 times [2024-10-13 09:51:17,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:17,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706537437] [2024-10-13 09:51:17,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:17,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:17,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:17,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:17,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706537437] [2024-10-13 09:51:17,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706537437] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:17,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756811044] [2024-10-13 09:51:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:17,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:17,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:17,909 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:17,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:51:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:18,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:51:18,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:18,089 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:18,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:18,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756811044] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:18,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:18,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:51:18,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914449762] [2024-10-13 09:51:18,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:18,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:51:18,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:18,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:51:18,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:51:18,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 281 [2024-10-13 09:51:18,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 276 transitions, 564 flow. Second operand has 10 states, 10 states have (on average 264.8) internal successors, (2648), 10 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:18,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:18,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 281 [2024-10-13 09:51:18,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:18,328 INFO L124 PetriNetUnfolderBase]: 8/362 cut-off events. [2024-10-13 09:51:18,329 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:51:18,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 362 events. 8/362 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 870 event pairs, 6 based on Foata normal form. 2/334 useless extension candidates. Maximal degree in co-relation 384. Up to 24 conditions per place. [2024-10-13 09:51:18,332 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 14 selfloop transitions, 9 changer transitions 0/284 dead transitions. [2024-10-13 09:51:18,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 284 transitions, 628 flow [2024-10-13 09:51:18,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:51:18,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:51:18,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2392 transitions. [2024-10-13 09:51:18,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9458283906682483 [2024-10-13 09:51:18,339 INFO L175 Difference]: Start difference. First operand has 280 places, 276 transitions, 564 flow. Second operand 9 states and 2392 transitions. [2024-10-13 09:51:18,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 284 transitions, 628 flow [2024-10-13 09:51:18,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 284 transitions, 626 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:18,347 INFO L231 Difference]: Finished difference. Result has 289 places, 282 transitions, 612 flow [2024-10-13 09:51:18,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=612, PETRI_PLACES=289, PETRI_TRANSITIONS=282} [2024-10-13 09:51:18,350 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 11 predicate places. [2024-10-13 09:51:18,350 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 282 transitions, 612 flow [2024-10-13 09:51:18,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 264.8) internal successors, (2648), 10 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:18,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:18,352 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-13 09:51:18,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 09:51:18,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:18,557 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:18,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:18,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1731829655, now seen corresponding path program 2 times [2024-10-13 09:51:18,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:18,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928134136] [2024-10-13 09:51:18,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:18,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:18,796 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:18,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:18,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928134136] [2024-10-13 09:51:18,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928134136] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:18,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279025668] [2024-10-13 09:51:18,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:51:18,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:18,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:18,800 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:18,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:51:18,912 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:51:18,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:51:18,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 09:51:18,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:18,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-13 09:51:18,983 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 [2024-10-13 09:51:19,016 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:19,016 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 [2024-10-13 09:51:19,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:19,064 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 [2024-10-13 09:51:19,096 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:51:19,096 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:51:19,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279025668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:19,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:51:19,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-13 09:51:19,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402806080] [2024-10-13 09:51:19,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:19,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:19,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:19,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:19,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:51:19,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 281 [2024-10-13 09:51:19,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 282 transitions, 612 flow. Second operand has 6 states, 6 states have (on average 195.33333333333334) internal successors, (1172), 6 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:19,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:19,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 281 [2024-10-13 09:51:19,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:20,073 INFO L124 PetriNetUnfolderBase]: 366/1637 cut-off events. [2024-10-13 09:51:20,074 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-13 09:51:20,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2479 conditions, 1637 events. 366/1637 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10043 event pairs, 364 based on Foata normal form. 0/1511 useless extension candidates. Maximal degree in co-relation 2426. Up to 800 conditions per place. [2024-10-13 09:51:20,084 INFO L140 encePairwiseOnDemand]: 269/281 looper letters, 71 selfloop transitions, 10 changer transitions 0/280 dead transitions. [2024-10-13 09:51:20,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 280 transitions, 770 flow [2024-10-13 09:51:20,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:20,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1247 transitions. [2024-10-13 09:51:20,088 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7396204033214709 [2024-10-13 09:51:20,089 INFO L175 Difference]: Start difference. First operand has 289 places, 282 transitions, 612 flow. Second operand 6 states and 1247 transitions. [2024-10-13 09:51:20,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 280 transitions, 770 flow [2024-10-13 09:51:20,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 280 transitions, 764 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:20,095 INFO L231 Difference]: Finished difference. Result has 291 places, 280 transitions, 622 flow [2024-10-13 09:51:20,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=622, PETRI_PLACES=291, PETRI_TRANSITIONS=280} [2024-10-13 09:51:20,096 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 13 predicate places. [2024-10-13 09:51:20,096 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 280 transitions, 622 flow [2024-10-13 09:51:20,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.33333333333334) internal successors, (1172), 6 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:20,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:20,097 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-13 09:51:20,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 09:51:20,298 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,SelfDestructingSolverStorable2 [2024-10-13 09:51:20,300 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:20,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:20,300 INFO L85 PathProgramCache]: Analyzing trace with hash 600231293, now seen corresponding path program 1 times [2024-10-13 09:51:20,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:20,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517669006] [2024-10-13 09:51:20,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:20,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:20,357 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:51:20,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:20,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517669006] [2024-10-13 09:51:20,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517669006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:20,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:20,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:51:20,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460463138] [2024-10-13 09:51:20,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:20,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:51:20,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:20,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:51:20,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:51:20,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 281 [2024-10-13 09:51:20,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 280 transitions, 622 flow. Second operand has 3 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:20,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:20,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 281 [2024-10-13 09:51:20,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:20,476 INFO L124 PetriNetUnfolderBase]: 8/471 cut-off events. [2024-10-13 09:51:20,477 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 09:51:20,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 471 events. 8/471 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 866 event pairs, 6 based on Foata normal form. 1/438 useless extension candidates. Maximal degree in co-relation 494. Up to 24 conditions per place. [2024-10-13 09:51:20,479 INFO L140 encePairwiseOnDemand]: 278/281 looper letters, 10 selfloop transitions, 2 changer transitions 0/281 dead transitions. [2024-10-13 09:51:20,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 281 transitions, 648 flow [2024-10-13 09:51:20,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:51:20,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:51:20,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2024-10-13 09:51:20,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9620403321470937 [2024-10-13 09:51:20,482 INFO L175 Difference]: Start difference. First operand has 291 places, 280 transitions, 622 flow. Second operand 3 states and 811 transitions. [2024-10-13 09:51:20,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 281 transitions, 648 flow [2024-10-13 09:51:20,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 281 transitions, 628 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:20,487 INFO L231 Difference]: Finished difference. Result has 289 places, 281 transitions, 614 flow [2024-10-13 09:51:20,488 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=614, PETRI_PLACES=289, PETRI_TRANSITIONS=281} [2024-10-13 09:51:20,489 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 11 predicate places. [2024-10-13 09:51:20,489 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 281 transitions, 614 flow [2024-10-13 09:51:20,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:20,490 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:20,490 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-13 09:51:20,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:51:20,491 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:20,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:20,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1475726743, now seen corresponding path program 1 times [2024-10-13 09:51:20,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:20,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871408453] [2024-10-13 09:51:20,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:20,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:20,912 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:51:20,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:20,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871408453] [2024-10-13 09:51:20,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871408453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:20,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:20,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:20,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683478937] [2024-10-13 09:51:20,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:20,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:20,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:20,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:20,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:21,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 281 [2024-10-13 09:51:21,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 281 transitions, 614 flow. Second operand has 6 states, 6 states have (on average 195.33333333333334) internal successors, (1172), 6 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:21,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:21,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 281 [2024-10-13 09:51:21,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:21,742 INFO L124 PetriNetUnfolderBase]: 366/1744 cut-off events. [2024-10-13 09:51:21,742 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-13 09:51:21,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2630 conditions, 1744 events. 366/1744 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9980 event pairs, 364 based on Foata normal form. 0/1616 useless extension candidates. Maximal degree in co-relation 2578. Up to 830 conditions per place. [2024-10-13 09:51:21,753 INFO L140 encePairwiseOnDemand]: 269/281 looper letters, 71 selfloop transitions, 10 changer transitions 0/279 dead transitions. [2024-10-13 09:51:21,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 279 transitions, 772 flow [2024-10-13 09:51:21,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:21,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:21,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1247 transitions. [2024-10-13 09:51:21,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7396204033214709 [2024-10-13 09:51:21,757 INFO L175 Difference]: Start difference. First operand has 289 places, 281 transitions, 614 flow. Second operand 6 states and 1247 transitions. [2024-10-13 09:51:21,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 279 transitions, 772 flow [2024-10-13 09:51:21,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 279 transitions, 770 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:21,763 INFO L231 Difference]: Finished difference. Result has 291 places, 279 transitions, 628 flow [2024-10-13 09:51:21,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=628, PETRI_PLACES=291, PETRI_TRANSITIONS=279} [2024-10-13 09:51:21,765 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 13 predicate places. [2024-10-13 09:51:21,765 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 279 transitions, 628 flow [2024-10-13 09:51:21,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.33333333333334) internal successors, (1172), 6 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:21,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:21,767 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-13 09:51:21,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 09:51:21,767 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:21,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:21,767 INFO L85 PathProgramCache]: Analyzing trace with hash -2118446655, now seen corresponding path program 1 times [2024-10-13 09:51:21,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:21,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525932860] [2024-10-13 09:51:21,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:21,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:21,940 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:21,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:21,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525932860] [2024-10-13 09:51:21,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525932860] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:21,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230455857] [2024-10-13 09:51:21,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:21,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:21,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:21,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:21,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:51:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:22,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:51:22,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:22,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:22,226 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:22,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230455857] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:22,227 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:22,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 09:51:22,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606172732] [2024-10-13 09:51:22,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:22,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 09:51:22,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:22,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 09:51:22,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 09:51:22,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 281 [2024-10-13 09:51:22,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 279 transitions, 628 flow. Second operand has 18 states, 18 states have (on average 264.8888888888889) internal successors, (4768), 18 states have internal predecessors, (4768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:22,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:22,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 281 [2024-10-13 09:51:22,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:22,492 INFO L124 PetriNetUnfolderBase]: 8/487 cut-off events. [2024-10-13 09:51:22,492 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-13 09:51:22,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 487 events. 8/487 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 854 event pairs, 6 based on Foata normal form. 4/461 useless extension candidates. Maximal degree in co-relation 491. Up to 24 conditions per place. [2024-10-13 09:51:22,495 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 18 selfloop transitions, 21 changer transitions 0/297 dead transitions. [2024-10-13 09:51:22,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 297 transitions, 794 flow [2024-10-13 09:51:22,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 09:51:22,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 09:51:22,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5566 transitions. [2024-10-13 09:51:22,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9432299610235553 [2024-10-13 09:51:22,507 INFO L175 Difference]: Start difference. First operand has 291 places, 279 transitions, 628 flow. Second operand 21 states and 5566 transitions. [2024-10-13 09:51:22,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 297 transitions, 794 flow [2024-10-13 09:51:22,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 297 transitions, 774 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:22,515 INFO L231 Difference]: Finished difference. Result has 311 places, 292 transitions, 738 flow [2024-10-13 09:51:22,515 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=738, PETRI_PLACES=311, PETRI_TRANSITIONS=292} [2024-10-13 09:51:22,517 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 33 predicate places. [2024-10-13 09:51:22,518 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 292 transitions, 738 flow [2024-10-13 09:51:22,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 264.8888888888889) internal successors, (4768), 18 states have internal predecessors, (4768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:22,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:22,522 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-13 09:51:22,540 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 09:51:22,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:22,724 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:22,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:22,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1566123393, now seen corresponding path program 2 times [2024-10-13 09:51:22,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:22,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483909468] [2024-10-13 09:51:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:22,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:23,144 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:23,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:23,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483909468] [2024-10-13 09:51:23,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483909468] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:23,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760280252] [2024-10-13 09:51:23,145 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:51:23,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:23,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:23,147 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:23,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 09:51:23,262 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:51:23,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:51:23,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 09:51:23,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:23,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-13 09:51:23,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-13 09:51:23,513 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:23,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-13 09:51:23,563 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:23,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-13 09:51:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-13 09:51:23,600 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:51:23,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760280252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:23,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:51:23,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 23 [2024-10-13 09:51:23,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37732352] [2024-10-13 09:51:23,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:23,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:51:23,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:23,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:51:23,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2024-10-13 09:51:24,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 281 [2024-10-13 09:51:24,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 292 transitions, 738 flow. Second operand has 8 states, 8 states have (on average 190.125) internal successors, (1521), 8 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:24,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:24,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 281 [2024-10-13 09:51:24,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:24,472 INFO L124 PetriNetUnfolderBase]: 392/1853 cut-off events. [2024-10-13 09:51:24,472 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-10-13 09:51:24,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2864 conditions, 1853 events. 392/1853 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 10795 event pairs, 390 based on Foata normal form. 0/1720 useless extension candidates. Maximal degree in co-relation 2729. Up to 869 conditions per place. [2024-10-13 09:51:24,482 INFO L140 encePairwiseOnDemand]: 272/281 looper letters, 122 selfloop transitions, 8 changer transitions 0/332 dead transitions. [2024-10-13 09:51:24,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 332 transitions, 1078 flow [2024-10-13 09:51:24,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:51:24,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:51:24,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1635 transitions. [2024-10-13 09:51:24,487 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7273131672597865 [2024-10-13 09:51:24,487 INFO L175 Difference]: Start difference. First operand has 311 places, 292 transitions, 738 flow. Second operand 8 states and 1635 transitions. [2024-10-13 09:51:24,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 332 transitions, 1078 flow [2024-10-13 09:51:24,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 332 transitions, 1054 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-13 09:51:24,498 INFO L231 Difference]: Finished difference. Result has 317 places, 297 transitions, 764 flow [2024-10-13 09:51:24,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=764, PETRI_PLACES=317, PETRI_TRANSITIONS=297} [2024-10-13 09:51:24,500 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 39 predicate places. [2024-10-13 09:51:24,500 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 297 transitions, 764 flow [2024-10-13 09:51:24,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 190.125) internal successors, (1521), 8 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:24,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:24,503 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-13 09:51:24,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 09:51:24,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:24,704 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:24,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:24,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1637244937, now seen corresponding path program 1 times [2024-10-13 09:51:24,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:24,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126096026] [2024-10-13 09:51:24,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:24,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:25,185 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:25,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:25,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126096026] [2024-10-13 09:51:25,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126096026] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:25,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676122214] [2024-10-13 09:51:25,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:25,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:25,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:25,188 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:25,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 09:51:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:25,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:51:25,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:25,437 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:25,437 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:25,656 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:25,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676122214] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:25,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:25,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-13 09:51:25,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881904621] [2024-10-13 09:51:25,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:25,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 09:51:25,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:25,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 09:51:25,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-13 09:51:25,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 281 [2024-10-13 09:51:25,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 297 transitions, 764 flow. Second operand has 23 states, 23 states have (on average 265.0) internal successors, (6095), 23 states have internal predecessors, (6095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:25,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:25,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 281 [2024-10-13 09:51:25,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:26,106 INFO L124 PetriNetUnfolderBase]: 8/501 cut-off events. [2024-10-13 09:51:26,106 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2024-10-13 09:51:26,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 501 events. 8/501 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 865 event pairs, 6 based on Foata normal form. 3/476 useless extension candidates. Maximal degree in co-relation 496. Up to 24 conditions per place. [2024-10-13 09:51:26,109 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 21 selfloop transitions, 30 changer transitions 0/314 dead transitions. [2024-10-13 09:51:26,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 314 transitions, 988 flow [2024-10-13 09:51:26,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-13 09:51:26,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-13 09:51:26,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7944 transitions. [2024-10-13 09:51:26,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9423487544483986 [2024-10-13 09:51:26,127 INFO L175 Difference]: Start difference. First operand has 317 places, 297 transitions, 764 flow. Second operand 30 states and 7944 transitions. [2024-10-13 09:51:26,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 314 transitions, 988 flow [2024-10-13 09:51:26,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 314 transitions, 982 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 09:51:26,135 INFO L231 Difference]: Finished difference. Result has 347 places, 307 transitions, 910 flow [2024-10-13 09:51:26,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=910, PETRI_PLACES=347, PETRI_TRANSITIONS=307} [2024-10-13 09:51:26,137 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 69 predicate places. [2024-10-13 09:51:26,137 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 307 transitions, 910 flow [2024-10-13 09:51:26,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 265.0) internal successors, (6095), 23 states have internal predecessors, (6095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:26,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:26,140 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-13 09:51:26,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-13 09:51:26,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:26,345 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:26,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1347047060, now seen corresponding path program 2 times [2024-10-13 09:51:26,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:26,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057054350] [2024-10-13 09:51:26,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:26,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:26,982 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:26,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:26,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057054350] [2024-10-13 09:51:26,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057054350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:26,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:26,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:26,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567710631] [2024-10-13 09:51:26,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:26,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:26,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:26,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:26,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:27,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 281 [2024-10-13 09:51:27,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 307 transitions, 910 flow. Second operand has 6 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:27,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:27,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 281 [2024-10-13 09:51:27,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:27,635 INFO L124 PetriNetUnfolderBase]: 56/742 cut-off events. [2024-10-13 09:51:27,636 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-10-13 09:51:27,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 742 events. 56/742 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2646 event pairs, 54 based on Foata normal form. 0/690 useless extension candidates. Maximal degree in co-relation 920. Up to 195 conditions per place. [2024-10-13 09:51:27,640 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 61 selfloop transitions, 5 changer transitions 0/306 dead transitions. [2024-10-13 09:51:27,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 306 transitions, 1040 flow [2024-10-13 09:51:27,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:27,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:27,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1352 transitions. [2024-10-13 09:51:27,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8018979833926453 [2024-10-13 09:51:27,644 INFO L175 Difference]: Start difference. First operand has 347 places, 307 transitions, 910 flow. Second operand 6 states and 1352 transitions. [2024-10-13 09:51:27,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 306 transitions, 1040 flow [2024-10-13 09:51:27,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 306 transitions, 994 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-13 09:51:27,652 INFO L231 Difference]: Finished difference. Result has 333 places, 306 transitions, 872 flow [2024-10-13 09:51:27,652 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=872, PETRI_PLACES=333, PETRI_TRANSITIONS=306} [2024-10-13 09:51:27,653 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 55 predicate places. [2024-10-13 09:51:27,653 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 306 transitions, 872 flow [2024-10-13 09:51:27,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.83333333333334) internal successors, (1319), 6 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:27,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:27,654 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-13 09:51:27,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 09:51:27,654 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:27,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:27,655 INFO L85 PathProgramCache]: Analyzing trace with hash -633940923, now seen corresponding path program 1 times [2024-10-13 09:51:27,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:27,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532767439] [2024-10-13 09:51:27,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:27,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:28,228 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:28,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:28,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532767439] [2024-10-13 09:51:28,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532767439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:28,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:28,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:28,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911112227] [2024-10-13 09:51:28,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:28,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:28,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:28,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:28,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:28,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 281 [2024-10-13 09:51:28,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 306 transitions, 872 flow. Second operand has 6 states, 6 states have (on average 222.5) internal successors, (1335), 6 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:28,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:28,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 281 [2024-10-13 09:51:28,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:28,885 INFO L124 PetriNetUnfolderBase]: 38/657 cut-off events. [2024-10-13 09:51:28,885 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-10-13 09:51:28,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 657 events. 38/657 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2080 event pairs, 36 based on Foata normal form. 0/618 useless extension candidates. Maximal degree in co-relation 809. Up to 158 conditions per place. [2024-10-13 09:51:28,889 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 57 selfloop transitions, 5 changer transitions 0/305 dead transitions. [2024-10-13 09:51:28,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 305 transitions, 994 flow [2024-10-13 09:51:28,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:28,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:28,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1367 transitions. [2024-10-13 09:51:28,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8107947805456702 [2024-10-13 09:51:28,893 INFO L175 Difference]: Start difference. First operand has 333 places, 306 transitions, 872 flow. Second operand 6 states and 1367 transitions. [2024-10-13 09:51:28,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 305 transitions, 994 flow [2024-10-13 09:51:28,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 305 transitions, 984 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:28,903 INFO L231 Difference]: Finished difference. Result has 332 places, 305 transitions, 870 flow [2024-10-13 09:51:28,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=870, PETRI_PLACES=332, PETRI_TRANSITIONS=305} [2024-10-13 09:51:28,904 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 54 predicate places. [2024-10-13 09:51:28,904 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 305 transitions, 870 flow [2024-10-13 09:51:28,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 222.5) internal successors, (1335), 6 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:28,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:28,905 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-10-13 09:51:28,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 09:51:28,906 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:28,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:28,906 INFO L85 PathProgramCache]: Analyzing trace with hash -2032327915, now seen corresponding path program 1 times [2024-10-13 09:51:28,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:28,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20530437] [2024-10-13 09:51:28,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:28,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:29,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:29,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20530437] [2024-10-13 09:51:29,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20530437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:29,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:29,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:29,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924132309] [2024-10-13 09:51:29,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:29,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:29,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:29,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:29,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:29,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 281 [2024-10-13 09:51:29,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 305 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 198.16666666666666) internal successors, (1189), 6 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:29,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:29,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 281 [2024-10-13 09:51:29,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:30,172 INFO L124 PetriNetUnfolderBase]: 366/1772 cut-off events. [2024-10-13 09:51:30,172 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-10-13 09:51:30,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2806 conditions, 1772 events. 366/1772 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10003 event pairs, 364 based on Foata normal form. 0/1652 useless extension candidates. Maximal degree in co-relation 2612. Up to 846 conditions per place. [2024-10-13 09:51:30,184 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 83 selfloop transitions, 5 changer transitions 0/304 dead transitions. [2024-10-13 09:51:30,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 304 transitions, 1044 flow [2024-10-13 09:51:30,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:30,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:30,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1237 transitions. [2024-10-13 09:51:30,190 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7336892052194544 [2024-10-13 09:51:30,190 INFO L175 Difference]: Start difference. First operand has 332 places, 305 transitions, 870 flow. Second operand 6 states and 1237 transitions. [2024-10-13 09:51:30,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 304 transitions, 1044 flow [2024-10-13 09:51:30,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 304 transitions, 1034 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:30,196 INFO L231 Difference]: Finished difference. Result has 331 places, 304 transitions, 868 flow [2024-10-13 09:51:30,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=868, PETRI_PLACES=331, PETRI_TRANSITIONS=304} [2024-10-13 09:51:30,198 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 53 predicate places. [2024-10-13 09:51:30,198 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 304 transitions, 868 flow [2024-10-13 09:51:30,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.16666666666666) internal successors, (1189), 6 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:30,199 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:30,199 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:30,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 09:51:30,199 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:30,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:30,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1866865776, now seen corresponding path program 1 times [2024-10-13 09:51:30,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:30,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149721506] [2024-10-13 09:51:30,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:30,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:30,819 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:30,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:30,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149721506] [2024-10-13 09:51:30,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149721506] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:30,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:30,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:30,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539355457] [2024-10-13 09:51:30,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:30,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:30,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:30,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:30,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:31,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 281 [2024-10-13 09:51:31,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 304 transitions, 868 flow. Second operand has 6 states, 6 states have (on average 199.66666666666666) internal successors, (1198), 6 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:31,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:31,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 281 [2024-10-13 09:51:31,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:31,544 INFO L124 PetriNetUnfolderBase]: 366/1770 cut-off events. [2024-10-13 09:51:31,544 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-10-13 09:51:31,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2802 conditions, 1770 events. 366/1770 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10041 event pairs, 364 based on Foata normal form. 0/1652 useless extension candidates. Maximal degree in co-relation 2608. Up to 844 conditions per place. [2024-10-13 09:51:31,555 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 82 selfloop transitions, 5 changer transitions 0/303 dead transitions. [2024-10-13 09:51:31,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 303 transitions, 1040 flow [2024-10-13 09:51:31,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:31,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:31,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1242 transitions. [2024-10-13 09:51:31,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7366548042704626 [2024-10-13 09:51:31,558 INFO L175 Difference]: Start difference. First operand has 331 places, 304 transitions, 868 flow. Second operand 6 states and 1242 transitions. [2024-10-13 09:51:31,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 303 transitions, 1040 flow [2024-10-13 09:51:31,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 303 transitions, 1030 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:31,565 INFO L231 Difference]: Finished difference. Result has 330 places, 303 transitions, 866 flow [2024-10-13 09:51:31,565 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=866, PETRI_PLACES=330, PETRI_TRANSITIONS=303} [2024-10-13 09:51:31,566 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 52 predicate places. [2024-10-13 09:51:31,566 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 303 transitions, 866 flow [2024-10-13 09:51:31,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 199.66666666666666) internal successors, (1198), 6 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:31,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:31,567 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:31,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 09:51:31,567 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:31,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:31,568 INFO L85 PathProgramCache]: Analyzing trace with hash 175255714, now seen corresponding path program 1 times [2024-10-13 09:51:31,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:31,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718357064] [2024-10-13 09:51:31,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:31,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:31,760 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:31,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:31,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718357064] [2024-10-13 09:51:31,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718357064] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:31,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272302211] [2024-10-13 09:51:31,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:31,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:31,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:31,763 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:31,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 09:51:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:32,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:51:32,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:32,173 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:32,173 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:32,333 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:32,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272302211] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:32,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:32,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:51:32,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789451555] [2024-10-13 09:51:32,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:32,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:51:32,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:32,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:51:32,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:51:32,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 281 [2024-10-13 09:51:32,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 303 transitions, 866 flow. Second operand has 10 states, 10 states have (on average 265.0) internal successors, (2650), 10 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:32,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:32,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 281 [2024-10-13 09:51:32,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:32,638 INFO L124 PetriNetUnfolderBase]: 8/601 cut-off events. [2024-10-13 09:51:32,639 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-10-13 09:51:32,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 601 events. 8/601 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 399 event pairs, 6 based on Foata normal form. 2/583 useless extension candidates. Maximal degree in co-relation 632. Up to 24 conditions per place. [2024-10-13 09:51:32,642 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 14 selfloop transitions, 9 changer transitions 0/311 dead transitions. [2024-10-13 09:51:32,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 311 transitions, 930 flow [2024-10-13 09:51:32,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:51:32,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:51:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2392 transitions. [2024-10-13 09:51:32,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9458283906682483 [2024-10-13 09:51:32,645 INFO L175 Difference]: Start difference. First operand has 330 places, 303 transitions, 866 flow. Second operand 9 states and 2392 transitions. [2024-10-13 09:51:32,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 311 transitions, 930 flow [2024-10-13 09:51:32,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 311 transitions, 920 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:32,652 INFO L231 Difference]: Finished difference. Result has 336 places, 309 transitions, 906 flow [2024-10-13 09:51:32,653 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=906, PETRI_PLACES=336, PETRI_TRANSITIONS=309} [2024-10-13 09:51:32,653 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 58 predicate places. [2024-10-13 09:51:32,653 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 309 transitions, 906 flow [2024-10-13 09:51:32,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 265.0) internal successors, (2650), 10 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:32,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:32,655 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:32,674 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 09:51:32,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:32,860 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:32,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:32,860 INFO L85 PathProgramCache]: Analyzing trace with hash 494586492, now seen corresponding path program 1 times [2024-10-13 09:51:32,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:32,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897447271] [2024-10-13 09:51:32,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:32,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:33,539 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-10-13 09:51:33,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:33,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897447271] [2024-10-13 09:51:33,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897447271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:33,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:33,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:33,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906273180] [2024-10-13 09:51:33,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:33,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:33,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:33,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:33,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:33,977 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 281 [2024-10-13 09:51:33,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 309 transitions, 906 flow. Second operand has 6 states, 6 states have (on average 197.16666666666666) internal successors, (1183), 6 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:33,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:33,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 281 [2024-10-13 09:51:33,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:34,545 INFO L124 PetriNetUnfolderBase]: 392/1966 cut-off events. [2024-10-13 09:51:34,545 INFO L125 PetriNetUnfolderBase]: For 145/145 co-relation queries the response was YES. [2024-10-13 09:51:34,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3111 conditions, 1966 events. 392/1966 cut-off events. For 145/145 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9936 event pairs, 390 based on Foata normal form. 2/1842 useless extension candidates. Maximal degree in co-relation 2913. Up to 935 conditions per place. [2024-10-13 09:51:34,556 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 84 selfloop transitions, 10 changer transitions 0/308 dead transitions. [2024-10-13 09:51:34,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 308 transitions, 1090 flow [2024-10-13 09:51:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:34,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:34,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1222 transitions. [2024-10-13 09:51:34,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7247924080664294 [2024-10-13 09:51:34,558 INFO L175 Difference]: Start difference. First operand has 336 places, 309 transitions, 906 flow. Second operand 6 states and 1222 transitions. [2024-10-13 09:51:34,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 308 transitions, 1090 flow [2024-10-13 09:51:34,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 308 transitions, 1086 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-10-13 09:51:34,566 INFO L231 Difference]: Finished difference. Result has 340 places, 308 transitions, 918 flow [2024-10-13 09:51:34,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=918, PETRI_PLACES=340, PETRI_TRANSITIONS=308} [2024-10-13 09:51:34,567 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 62 predicate places. [2024-10-13 09:51:34,567 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 308 transitions, 918 flow [2024-10-13 09:51:34,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.16666666666666) internal successors, (1183), 6 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:34,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:34,568 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 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] [2024-10-13 09:51:34,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 09:51:34,568 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:34,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:34,569 INFO L85 PathProgramCache]: Analyzing trace with hash -458958942, now seen corresponding path program 2 times [2024-10-13 09:51:34,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:34,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718900006] [2024-10-13 09:51:34,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:34,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:35,148 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:35,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:35,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718900006] [2024-10-13 09:51:35,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718900006] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:35,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666386388] [2024-10-13 09:51:35,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:51:35,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:35,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:35,151 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:35,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 09:51:35,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:51:35,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:51:35,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 09:51:35,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:35,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-13 09:51:35,456 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 28 treesize of output 27 [2024-10-13 09:51:35,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:35,480 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 40 treesize of output 42 [2024-10-13 09:51:35,511 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:35,512 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 52 treesize of output 57 [2024-10-13 09:51:35,536 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2024-10-13 09:51:35,537 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:51:35,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666386388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:35,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:51:35,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-13 09:51:35,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266375565] [2024-10-13 09:51:35,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:35,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:35,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:35,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:35,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:51:36,009 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 281 [2024-10-13 09:51:36,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 308 transitions, 918 flow. Second operand has 6 states, 6 states have (on average 224.33333333333334) internal successors, (1346), 6 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:36,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:36,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 281 [2024-10-13 09:51:36,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:36,592 INFO L124 PetriNetUnfolderBase]: 258/1906 cut-off events. [2024-10-13 09:51:36,593 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2024-10-13 09:51:36,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2749 conditions, 1906 events. 258/1906 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10052 event pairs, 36 based on Foata normal form. 0/1780 useless extension candidates. Maximal degree in co-relation 2550. Up to 491 conditions per place. [2024-10-13 09:51:36,602 INFO L140 encePairwiseOnDemand]: 258/281 looper letters, 71 selfloop transitions, 70 changer transitions 0/386 dead transitions. [2024-10-13 09:51:36,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 386 transitions, 1356 flow [2024-10-13 09:51:36,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:36,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:36,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1446 transitions. [2024-10-13 09:51:36,606 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8576512455516014 [2024-10-13 09:51:36,606 INFO L175 Difference]: Start difference. First operand has 340 places, 308 transitions, 918 flow. Second operand 6 states and 1446 transitions. [2024-10-13 09:51:36,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 386 transitions, 1356 flow [2024-10-13 09:51:36,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 386 transitions, 1336 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:36,616 INFO L231 Difference]: Finished difference. Result has 345 places, 377 transitions, 1360 flow [2024-10-13 09:51:36,616 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1360, PETRI_PLACES=345, PETRI_TRANSITIONS=377} [2024-10-13 09:51:36,617 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 67 predicate places. [2024-10-13 09:51:36,617 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 377 transitions, 1360 flow [2024-10-13 09:51:36,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.33333333333334) internal successors, (1346), 6 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:36,618 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:36,618 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 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] [2024-10-13 09:51:36,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-13 09:51:36,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:36,819 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:36,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:36,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1402832561, now seen corresponding path program 1 times [2024-10-13 09:51:36,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:36,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95452524] [2024-10-13 09:51:36,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:36,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:37,406 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:37,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:37,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95452524] [2024-10-13 09:51:37,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95452524] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:37,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876830105] [2024-10-13 09:51:37,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:37,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:37,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:37,409 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:37,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 09:51:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:37,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:51:37,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:38,194 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:38,562 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:38,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876830105] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:38,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:38,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 09:51:38,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877508599] [2024-10-13 09:51:38,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:38,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 09:51:38,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:38,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 09:51:38,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 09:51:38,765 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 281 [2024-10-13 09:51:38,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 377 transitions, 1360 flow. Second operand has 18 states, 18 states have (on average 265.0) internal successors, (4770), 18 states have internal predecessors, (4770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:38,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:38,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 281 [2024-10-13 09:51:38,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:39,293 INFO L124 PetriNetUnfolderBase]: 160/2038 cut-off events. [2024-10-13 09:51:39,293 INFO L125 PetriNetUnfolderBase]: For 314/328 co-relation queries the response was YES. [2024-10-13 09:51:39,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2942 conditions, 2038 events. 160/2038 cut-off events. For 314/328 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7409 event pairs, 23 based on Foata normal form. 4/1956 useless extension candidates. Maximal degree in co-relation 2740. Up to 207 conditions per place. [2024-10-13 09:51:39,308 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 19 selfloop transitions, 21 changer transitions 0/395 dead transitions. [2024-10-13 09:51:39,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 395 transitions, 1528 flow [2024-10-13 09:51:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 09:51:39,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 09:51:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5566 transitions. [2024-10-13 09:51:39,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9432299610235553 [2024-10-13 09:51:39,314 INFO L175 Difference]: Start difference. First operand has 345 places, 377 transitions, 1360 flow. Second operand 21 states and 5566 transitions. [2024-10-13 09:51:39,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 395 transitions, 1528 flow [2024-10-13 09:51:39,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 395 transitions, 1528 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:51:39,330 INFO L231 Difference]: Finished difference. Result has 370 places, 390 transitions, 1490 flow [2024-10-13 09:51:39,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=1360, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1490, PETRI_PLACES=370, PETRI_TRANSITIONS=390} [2024-10-13 09:51:39,331 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 92 predicate places. [2024-10-13 09:51:39,331 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 390 transitions, 1490 flow [2024-10-13 09:51:39,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 265.0) internal successors, (4770), 18 states have internal predecessors, (4770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:39,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:39,333 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 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] [2024-10-13 09:51:39,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-13 09:51:39,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-13 09:51:39,534 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:39,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:39,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1384453297, now seen corresponding path program 2 times [2024-10-13 09:51:39,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:39,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123195487] [2024-10-13 09:51:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:39,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:41,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:41,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:41,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123195487] [2024-10-13 09:51:41,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123195487] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:41,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367805405] [2024-10-13 09:51:41,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:51:41,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:41,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:41,218 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:41,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 09:51:41,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:51:41,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:51:41,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 09:51:41,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:41,783 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 [2024-10-13 09:51:41,799 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 [2024-10-13 09:51:41,826 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:41,827 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 [2024-10-13 09:51:41,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:41,862 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 [2024-10-13 09:51:41,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2447 trivial. 0 not checked. [2024-10-13 09:51:41,900 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:51:41,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367805405] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:41,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:51:41,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-13 09:51:41,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082941204] [2024-10-13 09:51:41,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:41,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:41,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:41,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:41,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-13 09:51:42,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 281 [2024-10-13 09:51:42,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 390 transitions, 1490 flow. Second operand has 6 states, 6 states have (on average 224.16666666666666) internal successors, (1345), 6 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:42,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:42,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 281 [2024-10-13 09:51:42,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:43,399 INFO L124 PetriNetUnfolderBase]: 546/3135 cut-off events. [2024-10-13 09:51:43,400 INFO L125 PetriNetUnfolderBase]: For 988/1081 co-relation queries the response was YES. [2024-10-13 09:51:43,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5643 conditions, 3135 events. 546/3135 cut-off events. For 988/1081 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16148 event pairs, 93 based on Foata normal form. 16/2986 useless extension candidates. Maximal degree in co-relation 5436. Up to 981 conditions per place. [2024-10-13 09:51:43,414 INFO L140 encePairwiseOnDemand]: 258/281 looper letters, 135 selfloop transitions, 130 changer transitions 0/527 dead transitions. [2024-10-13 09:51:43,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 527 transitions, 2670 flow [2024-10-13 09:51:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:43,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:43,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1445 transitions. [2024-10-13 09:51:43,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8570581257413997 [2024-10-13 09:51:43,417 INFO L175 Difference]: Start difference. First operand has 370 places, 390 transitions, 1490 flow. Second operand 6 states and 1445 transitions. [2024-10-13 09:51:43,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 527 transitions, 2670 flow [2024-10-13 09:51:43,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 527 transitions, 2646 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-13 09:51:43,430 INFO L231 Difference]: Finished difference. Result has 374 places, 519 transitions, 2694 flow [2024-10-13 09:51:43,431 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=1466, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2694, PETRI_PLACES=374, PETRI_TRANSITIONS=519} [2024-10-13 09:51:43,431 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 96 predicate places. [2024-10-13 09:51:43,432 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 519 transitions, 2694 flow [2024-10-13 09:51:43,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.16666666666666) internal successors, (1345), 6 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:43,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:43,433 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 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, 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, 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] [2024-10-13 09:51:43,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-13 09:51:43,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-13 09:51:43,634 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:43,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:43,635 INFO L85 PathProgramCache]: Analyzing trace with hash 2019336116, now seen corresponding path program 1 times [2024-10-13 09:51:43,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:43,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676417546] [2024-10-13 09:51:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:43,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:45,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:45,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:45,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676417546] [2024-10-13 09:51:45,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676417546] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:45,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973871778] [2024-10-13 09:51:45,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:45,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:45,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:45,082 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:45,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 09:51:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:45,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 3199 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:51:45,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:46,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:46,690 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:47,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:47,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973871778] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:47,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:47,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-13 09:51:47,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219771377] [2024-10-13 09:51:47,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:47,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 09:51:47,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:47,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 09:51:47,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-13 09:51:47,617 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 281 [2024-10-13 09:51:47,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 519 transitions, 2694 flow. Second operand has 23 states, 23 states have (on average 265.0869565217391) internal successors, (6097), 23 states have internal predecessors, (6097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:47,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:47,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 281 [2024-10-13 09:51:47,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:48,732 INFO L124 PetriNetUnfolderBase]: 414/3126 cut-off events. [2024-10-13 09:51:48,732 INFO L125 PetriNetUnfolderBase]: For 1309/1346 co-relation queries the response was YES. [2024-10-13 09:51:48,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5540 conditions, 3126 events. 414/3126 cut-off events. For 1309/1346 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 13492 event pairs, 39 based on Foata normal form. 7/3025 useless extension candidates. Maximal degree in co-relation 5328. Up to 468 conditions per place. [2024-10-13 09:51:48,750 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 22 selfloop transitions, 30 changer transitions 0/536 dead transitions. [2024-10-13 09:51:48,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 536 transitions, 2920 flow [2024-10-13 09:51:48,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-13 09:51:48,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-13 09:51:48,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7944 transitions. [2024-10-13 09:51:48,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9423487544483986 [2024-10-13 09:51:48,758 INFO L175 Difference]: Start difference. First operand has 374 places, 519 transitions, 2694 flow. Second operand 30 states and 7944 transitions. [2024-10-13 09:51:48,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 536 transitions, 2920 flow [2024-10-13 09:51:48,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 536 transitions, 2920 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:51:48,778 INFO L231 Difference]: Finished difference. Result has 407 places, 529 transitions, 2846 flow [2024-10-13 09:51:48,779 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=2694, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2846, PETRI_PLACES=407, PETRI_TRANSITIONS=529} [2024-10-13 09:51:48,779 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 129 predicate places. [2024-10-13 09:51:48,779 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 529 transitions, 2846 flow [2024-10-13 09:51:48,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 265.0869565217391) internal successors, (6097), 23 states have internal predecessors, (6097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:48,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:48,782 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 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, 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] [2024-10-13 09:51:48,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-13 09:51:48,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-13 09:51:48,983 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:48,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:48,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1891020588, now seen corresponding path program 2 times [2024-10-13 09:51:48,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:48,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070303964] [2024-10-13 09:51:48,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:48,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:51,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2024-10-13 09:51:51,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:51,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070303964] [2024-10-13 09:51:51,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070303964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:51,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:51,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:51,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744826430] [2024-10-13 09:51:51,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:51,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:51,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:51,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:51,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:52,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 281 [2024-10-13 09:51:52,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 529 transitions, 2846 flow. Second operand has 6 states, 6 states have (on average 224.33333333333334) internal successors, (1346), 6 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:52,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:52,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 281 [2024-10-13 09:51:52,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:53,874 INFO L124 PetriNetUnfolderBase]: 822/4216 cut-off events. [2024-10-13 09:51:53,874 INFO L125 PetriNetUnfolderBase]: For 3463/3728 co-relation queries the response was YES. [2024-10-13 09:51:53,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9005 conditions, 4216 events. 822/4216 cut-off events. For 3463/3728 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22411 event pairs, 74 based on Foata normal form. 76/4117 useless extension candidates. Maximal degree in co-relation 8789. Up to 1323 conditions per place. [2024-10-13 09:51:53,907 INFO L140 encePairwiseOnDemand]: 258/281 looper letters, 255 selfloop transitions, 131 changer transitions 5/667 dead transitions. [2024-10-13 09:51:53,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 667 transitions, 4528 flow [2024-10-13 09:51:53,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:53,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:53,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1446 transitions. [2024-10-13 09:51:53,910 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8576512455516014 [2024-10-13 09:51:53,910 INFO L175 Difference]: Start difference. First operand has 407 places, 529 transitions, 2846 flow. Second operand 6 states and 1446 transitions. [2024-10-13 09:51:53,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 667 transitions, 4528 flow [2024-10-13 09:51:53,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 667 transitions, 4482 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-13 09:51:53,936 INFO L231 Difference]: Finished difference. Result has 399 places, 657 transitions, 4280 flow [2024-10-13 09:51:53,936 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=2800, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=491, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4280, PETRI_PLACES=399, PETRI_TRANSITIONS=657} [2024-10-13 09:51:53,937 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 121 predicate places. [2024-10-13 09:51:53,937 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 657 transitions, 4280 flow [2024-10-13 09:51:53,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.33333333333334) internal successors, (1346), 6 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:53,938 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:53,939 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 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, 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] [2024-10-13 09:51:53,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 09:51:53,939 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:53,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:53,940 INFO L85 PathProgramCache]: Analyzing trace with hash 778737856, now seen corresponding path program 1 times [2024-10-13 09:51:53,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:53,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575195618] [2024-10-13 09:51:53,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:53,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:56,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2024-10-13 09:51:56,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:56,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575195618] [2024-10-13 09:51:56,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575195618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:56,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:56,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:56,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479005293] [2024-10-13 09:51:56,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:56,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:56,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:56,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:56,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:56,815 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 281 [2024-10-13 09:51:56,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 657 transitions, 4280 flow. Second operand has 6 states, 6 states have (on average 204.66666666666666) internal successors, (1228), 6 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:56,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:56,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 281 [2024-10-13 09:51:56,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:58,807 INFO L124 PetriNetUnfolderBase]: 1309/5545 cut-off events. [2024-10-13 09:51:58,807 INFO L125 PetriNetUnfolderBase]: For 5022/5079 co-relation queries the response was YES. [2024-10-13 09:51:58,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13623 conditions, 5545 events. 1309/5545 cut-off events. For 5022/5079 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33856 event pairs, 369 based on Foata normal form. 11/5311 useless extension candidates. Maximal degree in co-relation 13403. Up to 2549 conditions per place. [2024-10-13 09:51:58,847 INFO L140 encePairwiseOnDemand]: 262/281 looper letters, 320 selfloop transitions, 84 changer transitions 0/736 dead transitions. [2024-10-13 09:51:58,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 736 transitions, 5486 flow [2024-10-13 09:51:58,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:58,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:58,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1324 transitions. [2024-10-13 09:51:58,849 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7852906287069988 [2024-10-13 09:51:58,850 INFO L175 Difference]: Start difference. First operand has 399 places, 657 transitions, 4280 flow. Second operand 6 states and 1324 transitions. [2024-10-13 09:51:58,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 736 transitions, 5486 flow [2024-10-13 09:51:58,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 736 transitions, 5232 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-10-13 09:51:58,884 INFO L231 Difference]: Finished difference. Result has 408 places, 728 transitions, 4816 flow [2024-10-13 09:51:58,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=4032, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=657, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4816, PETRI_PLACES=408, PETRI_TRANSITIONS=728} [2024-10-13 09:51:58,885 INFO L277 CegarLoopForPetriNet]: 278 programPoint places, 130 predicate places. [2024-10-13 09:51:58,885 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 728 transitions, 4816 flow [2024-10-13 09:51:58,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 204.66666666666666) internal successors, (1228), 6 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:58,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:58,887 INFO L204 CegarLoopForPetriNet]: trace histogram [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, 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, 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] [2024-10-13 09:51:58,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 09:51:58,887 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:58,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:58,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1257134953, now seen corresponding path program 1 times [2024-10-13 09:51:58,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:58,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971405623] [2024-10-13 09:51:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:58,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:52:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat