./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c -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 2c579ed20cf5b381709dcc4ef9fbcf839f80c68ac017a29b947b11bd3a57dd56 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:44:25,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:44:25,829 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:44:25,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:44:25,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:44:25,857 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:44:25,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:44:25,858 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:44:25,858 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:44:25,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:44:25,859 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:44:25,859 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:44:25,859 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:44:25,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:44:25,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:44:25,860 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:44:25,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:44:25,860 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:44:25,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:44:25,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:44:25,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:44:25,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:44:25,864 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:44:25,864 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:44:25,865 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:44:25,865 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:44:25,865 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:44:25,865 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:44:25,865 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:44:25,866 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:44:25,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:44:25,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:44:25,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:44:25,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:44:25,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:44:25,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:44:25,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:44:25,870 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:44:25,870 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:44:25,870 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:44:25,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:44:25,871 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c579ed20cf5b381709dcc4ef9fbcf839f80c68ac017a29b947b11bd3a57dd56 [2024-11-16 23:44:26,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:44:26,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:44:26,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:44:26,097 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:44:26,098 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:44:26,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2024-11-16 23:44:27,454 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:44:27,636 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:44:27,637 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2024-11-16 23:44:27,644 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e920287b2/4870f68bbcac402bbf1ab72ccb532057/FLAGfbfdf027c [2024-11-16 23:44:28,030 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e920287b2/4870f68bbcac402bbf1ab72ccb532057 [2024-11-16 23:44:28,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:44:28,033 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:44:28,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:44:28,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:44:28,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:44:28,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26b6d4f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28, skipping insertion in model container [2024-11-16 23:44:28,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:44:28,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:44:28,223 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:44:28,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:44:28,309 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:44:28,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28 WrapperNode [2024-11-16 23:44:28,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:44:28,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:44:28,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:44:28,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:44:28,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,363 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 14, calls inlined = 18, statements flattened = 327 [2024-11-16 23:44:28,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:44:28,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:44:28,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:44:28,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:44:28,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,401 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,404 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:44:28,409 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:44:28,409 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:44:28,409 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:44:28,409 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28" (1/1) ... [2024-11-16 23:44:28,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:44:28,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:44:28,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 23:44:28,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 23:44:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-16 23:44:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:44:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-16 23:44:28,491 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-16 23:44:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-16 23:44:28,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-16 23:44:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:44:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-16 23:44:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:44:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:44:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:44:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:44:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:44:28,494 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:44:28,600 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:44:28,602 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:44:29,160 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:44:29,160 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:44:29,187 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:44:29,187 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:44:29,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:44:29 BoogieIcfgContainer [2024-11-16 23:44:29,188 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:44:29,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:44:29,189 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:44:29,191 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:44:29,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:44:28" (1/3) ... [2024-11-16 23:44:29,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af93e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:44:29, skipping insertion in model container [2024-11-16 23:44:29,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:44:28" (2/3) ... [2024-11-16 23:44:29,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af93e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:44:29, skipping insertion in model container [2024-11-16 23:44:29,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:44:29" (3/3) ... [2024-11-16 23:44:29,195 INFO L112 eAbstractionObserver]: Analyzing ICFG loop-tiling-eq.wvr.c [2024-11-16 23:44:29,210 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:44:29,210 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2024-11-16 23:44:29,210 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:44:29,303 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 23:44:29,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 514 places, 537 transitions, 1088 flow [2024-11-16 23:44:29,457 INFO L124 PetriNetUnfolderBase]: 30/535 cut-off events. [2024-11-16 23:44:29,457 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:44:29,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 535 events. 30/535 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 902 event pairs, 0 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 353. Up to 2 conditions per place. [2024-11-16 23:44:29,469 INFO L82 GeneralOperation]: Start removeDead. Operand has 514 places, 537 transitions, 1088 flow [2024-11-16 23:44:29,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 493 places, 515 transitions, 1042 flow [2024-11-16 23:44:29,488 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:44:29,495 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;@9e73c46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:44:29,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2024-11-16 23:44:29,503 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:44:29,504 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-16 23:44:29,504 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:44:29,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:29,505 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] [2024-11-16 23:44:29,505 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:29,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:29,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1314924018, now seen corresponding path program 1 times [2024-11-16 23:44:29,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:29,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270460382] [2024-11-16 23:44:29,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:29,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:29,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:29,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:29,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270460382] [2024-11-16 23:44:29,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270460382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:29,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:29,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:29,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601026807] [2024-11-16 23:44:29,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:29,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:29,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:29,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:29,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:29,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 537 [2024-11-16 23:44:29,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 515 transitions, 1042 flow. Second operand has 3 states, 3 states have (on average 499.3333333333333) internal successors, (1498), 3 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:29,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:29,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 537 [2024-11-16 23:44:29,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:29,941 INFO L124 PetriNetUnfolderBase]: 13/500 cut-off events. [2024-11-16 23:44:29,942 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-16 23:44:29,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 500 events. 13/500 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 885 event pairs, 2 based on Foata normal form. 21/445 useless extension candidates. Maximal degree in co-relation 347. Up to 20 conditions per place. [2024-11-16 23:44:29,946 INFO L140 encePairwiseOnDemand]: 516/537 looper letters, 15 selfloop transitions, 2 changer transitions 11/496 dead transitions. [2024-11-16 23:44:29,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 496 transitions, 1038 flow [2024-11-16 23:44:29,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:29,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:29,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1530 transitions. [2024-11-16 23:44:29,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9497206703910615 [2024-11-16 23:44:29,974 INFO L175 Difference]: Start difference. First operand has 493 places, 515 transitions, 1042 flow. Second operand 3 states and 1530 transitions. [2024-11-16 23:44:29,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 496 transitions, 1038 flow [2024-11-16 23:44:29,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 496 transitions, 1030 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-16 23:44:29,993 INFO L231 Difference]: Finished difference. Result has 490 places, 485 transitions, 978 flow [2024-11-16 23:44:29,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=978, PETRI_PLACES=490, PETRI_TRANSITIONS=485} [2024-11-16 23:44:30,000 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -3 predicate places. [2024-11-16 23:44:30,001 INFO L471 AbstractCegarLoop]: Abstraction has has 490 places, 485 transitions, 978 flow [2024-11-16 23:44:30,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 499.3333333333333) internal successors, (1498), 3 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:30,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:30,003 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] [2024-11-16 23:44:30,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:44:30,004 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:30,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:30,006 INFO L85 PathProgramCache]: Analyzing trace with hash 910083558, now seen corresponding path program 1 times [2024-11-16 23:44:30,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:30,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044688266] [2024-11-16 23:44:30,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:30,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:30,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:30,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:30,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044688266] [2024-11-16 23:44:30,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044688266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:30,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:30,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:30,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930106052] [2024-11-16 23:44:30,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:30,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:30,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:30,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:30,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:30,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 537 [2024-11-16 23:44:30,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 485 transitions, 978 flow. Second operand has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:30,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:30,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 537 [2024-11-16 23:44:30,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:30,238 INFO L124 PetriNetUnfolderBase]: 18/536 cut-off events. [2024-11-16 23:44:30,242 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-16 23:44:30,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574 conditions, 536 events. 18/536 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1191 event pairs, 4 based on Foata normal form. 0/472 useless extension candidates. Maximal degree in co-relation 542. Up to 30 conditions per place. [2024-11-16 23:44:30,245 INFO L140 encePairwiseOnDemand]: 528/537 looper letters, 20 selfloop transitions, 1 changer transitions 0/477 dead transitions. [2024-11-16 23:44:30,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 477 transitions, 1004 flow [2024-11-16 23:44:30,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:30,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:30,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1493 transitions. [2024-11-16 23:44:30,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9267535692116697 [2024-11-16 23:44:30,251 INFO L175 Difference]: Start difference. First operand has 490 places, 485 transitions, 978 flow. Second operand 3 states and 1493 transitions. [2024-11-16 23:44:30,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 477 transitions, 1004 flow [2024-11-16 23:44:30,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 477 transitions, 1000 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:44:30,267 INFO L231 Difference]: Finished difference. Result has 471 places, 477 transitions, 960 flow [2024-11-16 23:44:30,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=960, PETRI_PLACES=471, PETRI_TRANSITIONS=477} [2024-11-16 23:44:30,271 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -22 predicate places. [2024-11-16 23:44:30,271 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 477 transitions, 960 flow [2024-11-16 23:44:30,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 489.0) internal successors, (1467), 3 states have internal predecessors, (1467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:30,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:30,272 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] [2024-11-16 23:44:30,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:44:30,272 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:30,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:30,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1825135450, now seen corresponding path program 1 times [2024-11-16 23:44:30,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:30,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290537937] [2024-11-16 23:44:30,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:30,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:30,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:30,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:30,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290537937] [2024-11-16 23:44:30,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290537937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:30,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:30,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:30,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356494597] [2024-11-16 23:44:30,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:30,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:30,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:30,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:30,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:30,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 497 out of 537 [2024-11-16 23:44:30,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 477 transitions, 960 flow. Second operand has 3 states, 3 states have (on average 498.3333333333333) internal successors, (1495), 3 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:30,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:30,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 497 of 537 [2024-11-16 23:44:30,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:30,434 INFO L124 PetriNetUnfolderBase]: 14/531 cut-off events. [2024-11-16 23:44:30,435 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-16 23:44:30,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 531 events. 14/531 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1081 event pairs, 1 based on Foata normal form. 0/468 useless extension candidates. Maximal degree in co-relation 526. Up to 20 conditions per place. [2024-11-16 23:44:30,437 INFO L140 encePairwiseOnDemand]: 534/537 looper letters, 16 selfloop transitions, 2 changer transitions 0/476 dead transitions. [2024-11-16 23:44:30,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 476 transitions, 994 flow [2024-11-16 23:44:30,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:30,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:30,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1510 transitions. [2024-11-16 23:44:30,443 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9373060211049038 [2024-11-16 23:44:30,443 INFO L175 Difference]: Start difference. First operand has 471 places, 477 transitions, 960 flow. Second operand 3 states and 1510 transitions. [2024-11-16 23:44:30,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 476 transitions, 994 flow [2024-11-16 23:44:30,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 476 transitions, 993 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:44:30,449 INFO L231 Difference]: Finished difference. Result has 471 places, 476 transitions, 961 flow [2024-11-16 23:44:30,450 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=957, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=961, PETRI_PLACES=471, PETRI_TRANSITIONS=476} [2024-11-16 23:44:30,450 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -22 predicate places. [2024-11-16 23:44:30,450 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 476 transitions, 961 flow [2024-11-16 23:44:30,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 498.3333333333333) internal successors, (1495), 3 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:30,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:30,452 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] [2024-11-16 23:44:30,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:44:30,452 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:30,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:30,452 INFO L85 PathProgramCache]: Analyzing trace with hash 429693785, now seen corresponding path program 1 times [2024-11-16 23:44:30,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:30,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862796264] [2024-11-16 23:44:30,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:30,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:30,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:30,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:30,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862796264] [2024-11-16 23:44:30,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862796264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:30,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:30,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:30,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795650661] [2024-11-16 23:44:30,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:30,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:30,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:30,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:30,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:30,522 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 485 out of 537 [2024-11-16 23:44:30,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 476 transitions, 961 flow. Second operand has 3 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:30,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:30,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 485 of 537 [2024-11-16 23:44:30,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:30,576 INFO L124 PetriNetUnfolderBase]: 15/522 cut-off events. [2024-11-16 23:44:30,576 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-16 23:44:30,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 522 events. 15/522 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1069 event pairs, 2 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 527. Up to 27 conditions per place. [2024-11-16 23:44:30,579 INFO L140 encePairwiseOnDemand]: 527/537 looper letters, 22 selfloop transitions, 1 changer transitions 0/467 dead transitions. [2024-11-16 23:44:30,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 467 transitions, 989 flow [2024-11-16 23:44:30,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:30,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:30,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1487 transitions. [2024-11-16 23:44:30,582 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9230291744258224 [2024-11-16 23:44:30,582 INFO L175 Difference]: Start difference. First operand has 471 places, 476 transitions, 961 flow. Second operand 3 states and 1487 transitions. [2024-11-16 23:44:30,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 467 transitions, 989 flow [2024-11-16 23:44:30,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 467 transitions, 985 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:44:30,588 INFO L231 Difference]: Finished difference. Result has 462 places, 467 transitions, 941 flow [2024-11-16 23:44:30,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=941, PETRI_PLACES=462, PETRI_TRANSITIONS=467} [2024-11-16 23:44:30,589 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -31 predicate places. [2024-11-16 23:44:30,589 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 467 transitions, 941 flow [2024-11-16 23:44:30,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 486.0) internal successors, (1458), 3 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:30,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:30,591 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:30,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:44:30,591 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:30,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:30,591 INFO L85 PathProgramCache]: Analyzing trace with hash 300888046, now seen corresponding path program 1 times [2024-11-16 23:44:30,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:30,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038364258] [2024-11-16 23:44:30,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:30,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:30,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:30,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:30,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038364258] [2024-11-16 23:44:30,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038364258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:30,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:30,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:30,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875565939] [2024-11-16 23:44:30,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:30,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:30,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:30,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:30,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:30,661 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 537 [2024-11-16 23:44:30,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 467 transitions, 941 flow. Second operand has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:30,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:30,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 537 [2024-11-16 23:44:30,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:30,706 INFO L124 PetriNetUnfolderBase]: 13/502 cut-off events. [2024-11-16 23:44:30,706 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:44:30,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 502 events. 13/502 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 955 event pairs, 1 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 493. Up to 14 conditions per place. [2024-11-16 23:44:30,708 INFO L140 encePairwiseOnDemand]: 534/537 looper letters, 10 selfloop transitions, 2 changer transitions 0/466 dead transitions. [2024-11-16 23:44:30,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 466 transitions, 963 flow [2024-11-16 23:44:30,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:30,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:30,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1522 transitions. [2024-11-16 23:44:30,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9447548106765984 [2024-11-16 23:44:30,711 INFO L175 Difference]: Start difference. First operand has 462 places, 467 transitions, 941 flow. Second operand 3 states and 1522 transitions. [2024-11-16 23:44:30,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 466 transitions, 963 flow [2024-11-16 23:44:30,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 466 transitions, 962 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:44:30,717 INFO L231 Difference]: Finished difference. Result has 462 places, 466 transitions, 942 flow [2024-11-16 23:44:30,718 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=938, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=942, PETRI_PLACES=462, PETRI_TRANSITIONS=466} [2024-11-16 23:44:30,718 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -31 predicate places. [2024-11-16 23:44:30,719 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 466 transitions, 942 flow [2024-11-16 23:44:30,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:30,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:30,720 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:30,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:44:30,720 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:30,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:30,721 INFO L85 PathProgramCache]: Analyzing trace with hash 159978891, now seen corresponding path program 1 times [2024-11-16 23:44:30,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:30,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666510725] [2024-11-16 23:44:30,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:30,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:30,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:30,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666510725] [2024-11-16 23:44:30,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666510725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:30,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:30,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:30,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254166072] [2024-11-16 23:44:30,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:30,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:30,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:30,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:30,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:30,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 537 [2024-11-16 23:44:30,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 466 transitions, 942 flow. Second operand has 3 states, 3 states have (on average 504.0) internal successors, (1512), 3 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:30,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:30,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 537 [2024-11-16 23:44:30,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:30,825 INFO L124 PetriNetUnfolderBase]: 14/499 cut-off events. [2024-11-16 23:44:30,825 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:44:30,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 499 events. 14/499 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 942 event pairs, 2 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 495. Up to 15 conditions per place. [2024-11-16 23:44:30,827 INFO L140 encePairwiseOnDemand]: 533/537 looper letters, 10 selfloop transitions, 1 changer transitions 0/463 dead transitions. [2024-11-16 23:44:30,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 463 transitions, 958 flow [2024-11-16 23:44:30,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:30,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:30,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1523 transitions. [2024-11-16 23:44:30,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9453755431409062 [2024-11-16 23:44:30,830 INFO L175 Difference]: Start difference. First operand has 462 places, 466 transitions, 942 flow. Second operand 3 states and 1523 transitions. [2024-11-16 23:44:30,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 463 transitions, 958 flow [2024-11-16 23:44:30,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 463 transitions, 954 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:44:30,836 INFO L231 Difference]: Finished difference. Result has 459 places, 463 transitions, 934 flow [2024-11-16 23:44:30,837 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=934, PETRI_PLACES=459, PETRI_TRANSITIONS=463} [2024-11-16 23:44:30,837 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -34 predicate places. [2024-11-16 23:44:30,837 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 463 transitions, 934 flow [2024-11-16 23:44:30,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 504.0) internal successors, (1512), 3 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:30,838 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:30,839 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:30,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:44:30,839 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:30,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:30,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1053875503, now seen corresponding path program 1 times [2024-11-16 23:44:30,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:30,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186452854] [2024-11-16 23:44:30,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:30,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:30,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:30,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:30,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186452854] [2024-11-16 23:44:30,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186452854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:30,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:30,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:30,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125893653] [2024-11-16 23:44:30,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:30,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:30,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:30,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:30,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:30,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 504 out of 537 [2024-11-16 23:44:30,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 463 transitions, 934 flow. Second operand has 3 states, 3 states have (on average 505.3333333333333) internal successors, (1516), 3 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:30,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:30,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 504 of 537 [2024-11-16 23:44:30,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:30,987 INFO L124 PetriNetUnfolderBase]: 14/520 cut-off events. [2024-11-16 23:44:30,987 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:44:30,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 520 events. 14/520 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1079 event pairs, 1 based on Foata normal form. 0/472 useless extension candidates. Maximal degree in co-relation 510. Up to 12 conditions per place. [2024-11-16 23:44:30,989 INFO L140 encePairwiseOnDemand]: 534/537 looper letters, 9 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2024-11-16 23:44:30,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 462 transitions, 954 flow [2024-11-16 23:44:30,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:30,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:30,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1524 transitions. [2024-11-16 23:44:30,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9459962756052142 [2024-11-16 23:44:30,993 INFO L175 Difference]: Start difference. First operand has 459 places, 463 transitions, 934 flow. Second operand 3 states and 1524 transitions. [2024-11-16 23:44:30,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 462 transitions, 954 flow [2024-11-16 23:44:30,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 462 transitions, 953 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:44:31,000 INFO L231 Difference]: Finished difference. Result has 459 places, 462 transitions, 935 flow [2024-11-16 23:44:31,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=935, PETRI_PLACES=459, PETRI_TRANSITIONS=462} [2024-11-16 23:44:31,002 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -34 predicate places. [2024-11-16 23:44:31,002 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 462 transitions, 935 flow [2024-11-16 23:44:31,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 505.3333333333333) internal successors, (1516), 3 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:31,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:31,003 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:31,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:44:31,004 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:31,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:31,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1621640673, now seen corresponding path program 1 times [2024-11-16 23:44:31,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:31,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855482205] [2024-11-16 23:44:31,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:31,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:31,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:31,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:31,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855482205] [2024-11-16 23:44:31,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855482205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:31,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:31,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:44:31,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212814172] [2024-11-16 23:44:31,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:31,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:44:31,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:31,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:44:31,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:44:31,713 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 537 [2024-11-16 23:44:31,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 462 transitions, 935 flow. Second operand has 6 states, 6 states have (on average 436.5) internal successors, (2619), 6 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:31,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:31,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 537 [2024-11-16 23:44:31,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:31,881 INFO L124 PetriNetUnfolderBase]: 172/1161 cut-off events. [2024-11-16 23:44:31,881 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-11-16 23:44:31,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1525 conditions, 1161 events. 172/1161 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5709 event pairs, 116 based on Foata normal form. 0/1024 useless extension candidates. Maximal degree in co-relation 1494. Up to 332 conditions per place. [2024-11-16 23:44:31,886 INFO L140 encePairwiseOnDemand]: 519/537 looper letters, 64 selfloop transitions, 15 changer transitions 0/459 dead transitions. [2024-11-16 23:44:31,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 459 transitions, 1087 flow [2024-11-16 23:44:31,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:44:31,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:44:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2692 transitions. [2024-11-16 23:44:31,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8355058969584109 [2024-11-16 23:44:31,891 INFO L175 Difference]: Start difference. First operand has 459 places, 462 transitions, 935 flow. Second operand 6 states and 2692 transitions. [2024-11-16 23:44:31,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 459 transitions, 1087 flow [2024-11-16 23:44:31,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 459 transitions, 1083 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:44:31,897 INFO L231 Difference]: Finished difference. Result has 459 places, 459 transitions, 955 flow [2024-11-16 23:44:31,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=925, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=955, PETRI_PLACES=459, PETRI_TRANSITIONS=459} [2024-11-16 23:44:31,898 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -34 predicate places. [2024-11-16 23:44:31,898 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 459 transitions, 955 flow [2024-11-16 23:44:31,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 436.5) internal successors, (2619), 6 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:31,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:31,900 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:31,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:44:31,900 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:31,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:31,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1813611578, now seen corresponding path program 1 times [2024-11-16 23:44:31,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:31,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013792390] [2024-11-16 23:44:31,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:31,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:31,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:31,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:31,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013792390] [2024-11-16 23:44:31,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013792390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:31,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:31,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:31,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701353194] [2024-11-16 23:44:31,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:31,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:31,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:31,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:31,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:31,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 504 out of 537 [2024-11-16 23:44:31,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 459 transitions, 955 flow. Second operand has 3 states, 3 states have (on average 505.3333333333333) internal successors, (1516), 3 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:31,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:31,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 504 of 537 [2024-11-16 23:44:31,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:32,006 INFO L124 PetriNetUnfolderBase]: 16/519 cut-off events. [2024-11-16 23:44:32,007 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:44:32,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 519 events. 16/519 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1112 event pairs, 3 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 528. Up to 16 conditions per place. [2024-11-16 23:44:32,009 INFO L140 encePairwiseOnDemand]: 534/537 looper letters, 9 selfloop transitions, 2 changer transitions 0/458 dead transitions. [2024-11-16 23:44:32,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 458 transitions, 975 flow [2024-11-16 23:44:32,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:32,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:32,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1524 transitions. [2024-11-16 23:44:32,012 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9459962756052142 [2024-11-16 23:44:32,012 INFO L175 Difference]: Start difference. First operand has 459 places, 459 transitions, 955 flow. Second operand 3 states and 1524 transitions. [2024-11-16 23:44:32,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 458 transitions, 975 flow [2024-11-16 23:44:32,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 458 transitions, 945 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:44:32,019 INFO L231 Difference]: Finished difference. Result has 455 places, 458 transitions, 927 flow [2024-11-16 23:44:32,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=927, PETRI_PLACES=455, PETRI_TRANSITIONS=458} [2024-11-16 23:44:32,020 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -38 predicate places. [2024-11-16 23:44:32,020 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 458 transitions, 927 flow [2024-11-16 23:44:32,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 505.3333333333333) internal successors, (1516), 3 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:32,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:32,021 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:32,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:44:32,021 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:32,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:32,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1799978438, now seen corresponding path program 1 times [2024-11-16 23:44:32,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:32,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476033904] [2024-11-16 23:44:32,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:32,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:32,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:32,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476033904] [2024-11-16 23:44:32,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476033904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:32,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:32,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:32,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447132846] [2024-11-16 23:44:32,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:32,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:32,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:32,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:32,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:32,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 537 [2024-11-16 23:44:32,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 458 transitions, 927 flow. Second operand has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:32,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:32,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 537 [2024-11-16 23:44:32,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:32,140 INFO L124 PetriNetUnfolderBase]: 12/459 cut-off events. [2024-11-16 23:44:32,140 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:44:32,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 459 events. 12/459 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 718 event pairs, 1 based on Foata normal form. 0/423 useless extension candidates. Maximal degree in co-relation 451. Up to 13 conditions per place. [2024-11-16 23:44:32,142 INFO L140 encePairwiseOnDemand]: 534/537 looper letters, 10 selfloop transitions, 2 changer transitions 0/457 dead transitions. [2024-11-16 23:44:32,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 457 transitions, 949 flow [2024-11-16 23:44:32,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:32,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:32,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1522 transitions. [2024-11-16 23:44:32,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9447548106765984 [2024-11-16 23:44:32,145 INFO L175 Difference]: Start difference. First operand has 455 places, 458 transitions, 927 flow. Second operand 3 states and 1522 transitions. [2024-11-16 23:44:32,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 457 transitions, 949 flow [2024-11-16 23:44:32,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 457 transitions, 945 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:44:32,150 INFO L231 Difference]: Finished difference. Result has 454 places, 457 transitions, 925 flow [2024-11-16 23:44:32,151 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=925, PETRI_PLACES=454, PETRI_TRANSITIONS=457} [2024-11-16 23:44:32,151 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -39 predicate places. [2024-11-16 23:44:32,152 INFO L471 AbstractCegarLoop]: Abstraction has has 454 places, 457 transitions, 925 flow [2024-11-16 23:44:32,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 504.3333333333333) internal successors, (1513), 3 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:32,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:32,153 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:32,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:44:32,153 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:32,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:32,154 INFO L85 PathProgramCache]: Analyzing trace with hash 511284432, now seen corresponding path program 1 times [2024-11-16 23:44:32,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:32,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355916807] [2024-11-16 23:44:32,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:32,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:32,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:32,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:32,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355916807] [2024-11-16 23:44:32,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355916807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:32,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:32,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:44:32,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078835631] [2024-11-16 23:44:32,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:32,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:44:32,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:32,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:44:32,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:44:32,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 537 [2024-11-16 23:44:32,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 457 transitions, 925 flow. Second operand has 5 states, 5 states have (on average 501.6) internal successors, (2508), 5 states have internal predecessors, (2508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:32,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:32,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 537 [2024-11-16 23:44:32,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:32,380 INFO L124 PetriNetUnfolderBase]: 18/793 cut-off events. [2024-11-16 23:44:32,380 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:44:32,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 793 events. 18/793 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2237 event pairs, 0 based on Foata normal form. 1/728 useless extension candidates. Maximal degree in co-relation 798. Up to 12 conditions per place. [2024-11-16 23:44:32,384 INFO L140 encePairwiseOnDemand]: 529/537 looper letters, 16 selfloop transitions, 7 changer transitions 0/464 dead transitions. [2024-11-16 23:44:32,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 464 transitions, 989 flow [2024-11-16 23:44:32,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 23:44:32,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 23:44:32,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2524 transitions. [2024-11-16 23:44:32,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9400372439478585 [2024-11-16 23:44:32,388 INFO L175 Difference]: Start difference. First operand has 454 places, 457 transitions, 925 flow. Second operand 5 states and 2524 transitions. [2024-11-16 23:44:32,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 464 transitions, 989 flow [2024-11-16 23:44:32,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 464 transitions, 985 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:44:32,396 INFO L231 Difference]: Finished difference. Result has 458 places, 459 transitions, 952 flow [2024-11-16 23:44:32,397 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=952, PETRI_PLACES=458, PETRI_TRANSITIONS=459} [2024-11-16 23:44:32,397 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -35 predicate places. [2024-11-16 23:44:32,398 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 459 transitions, 952 flow [2024-11-16 23:44:32,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 501.6) internal successors, (2508), 5 states have internal predecessors, (2508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:32,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:32,399 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:32,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:44:32,400 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:32,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:32,400 INFO L85 PathProgramCache]: Analyzing trace with hash -238333748, now seen corresponding path program 1 times [2024-11-16 23:44:32,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:32,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720748617] [2024-11-16 23:44:32,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:32,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:32,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:32,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:32,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720748617] [2024-11-16 23:44:32,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720748617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:32,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:32,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:32,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916729818] [2024-11-16 23:44:32,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:32,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:32,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:32,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:32,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:32,455 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 503 out of 537 [2024-11-16 23:44:32,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 459 transitions, 952 flow. Second operand has 3 states, 3 states have (on average 504.0) internal successors, (1512), 3 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:32,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:32,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 503 of 537 [2024-11-16 23:44:32,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:32,557 INFO L124 PetriNetUnfolderBase]: 38/1136 cut-off events. [2024-11-16 23:44:32,557 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-16 23:44:32,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1206 conditions, 1136 events. 38/1136 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 4228 event pairs, 0 based on Foata normal form. 0/1029 useless extension candidates. Maximal degree in co-relation 1172. Up to 30 conditions per place. [2024-11-16 23:44:32,562 INFO L140 encePairwiseOnDemand]: 531/537 looper letters, 15 selfloop transitions, 3 changer transitions 0/463 dead transitions. [2024-11-16 23:44:32,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 463 transitions, 1000 flow [2024-11-16 23:44:32,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:32,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:32,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1530 transitions. [2024-11-16 23:44:32,564 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9497206703910615 [2024-11-16 23:44:32,565 INFO L175 Difference]: Start difference. First operand has 458 places, 459 transitions, 952 flow. Second operand 3 states and 1530 transitions. [2024-11-16 23:44:32,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 463 transitions, 1000 flow [2024-11-16 23:44:32,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 463 transitions, 993 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:44:32,570 INFO L231 Difference]: Finished difference. Result has 456 places, 459 transitions, 960 flow [2024-11-16 23:44:32,571 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=960, PETRI_PLACES=456, PETRI_TRANSITIONS=459} [2024-11-16 23:44:32,572 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -37 predicate places. [2024-11-16 23:44:32,572 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 459 transitions, 960 flow [2024-11-16 23:44:32,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 504.0) internal successors, (1512), 3 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:32,573 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:32,573 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:32,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 23:44:32,573 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:32,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:32,574 INFO L85 PathProgramCache]: Analyzing trace with hash 855873398, now seen corresponding path program 1 times [2024-11-16 23:44:32,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:32,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814555777] [2024-11-16 23:44:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:32,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:32,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:32,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814555777] [2024-11-16 23:44:32,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814555777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:32,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:32,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:32,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048112035] [2024-11-16 23:44:32,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:32,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:32,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:32,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:32,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:32,623 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 537 [2024-11-16 23:44:32,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 459 transitions, 960 flow. Second operand has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:32,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:32,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 537 [2024-11-16 23:44:32,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:32,747 INFO L124 PetriNetUnfolderBase]: 55/1381 cut-off events. [2024-11-16 23:44:32,747 INFO L125 PetriNetUnfolderBase]: For 12/28 co-relation queries the response was YES. [2024-11-16 23:44:32,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 1381 events. 55/1381 cut-off events. For 12/28 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 6042 event pairs, 0 based on Foata normal form. 0/1242 useless extension candidates. Maximal degree in co-relation 1453. Up to 43 conditions per place. [2024-11-16 23:44:32,752 INFO L140 encePairwiseOnDemand]: 533/537 looper letters, 12 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2024-11-16 23:44:32,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 462 transitions, 997 flow [2024-11-16 23:44:32,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:32,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:32,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1534 transitions. [2024-11-16 23:44:32,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.952203600248293 [2024-11-16 23:44:32,755 INFO L175 Difference]: Start difference. First operand has 456 places, 459 transitions, 960 flow. Second operand 3 states and 1534 transitions. [2024-11-16 23:44:32,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 462 transitions, 997 flow [2024-11-16 23:44:32,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 462 transitions, 997 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:44:32,761 INFO L231 Difference]: Finished difference. Result has 457 places, 459 transitions, 970 flow [2024-11-16 23:44:32,761 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=970, PETRI_PLACES=457, PETRI_TRANSITIONS=459} [2024-11-16 23:44:32,762 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -36 predicate places. [2024-11-16 23:44:32,762 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 459 transitions, 970 flow [2024-11-16 23:44:32,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:32,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:32,763 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:32,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:44:32,763 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:32,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:32,763 INFO L85 PathProgramCache]: Analyzing trace with hash -2139351497, now seen corresponding path program 1 times [2024-11-16 23:44:32,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:32,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008453128] [2024-11-16 23:44:32,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:32,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:32,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:32,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:32,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008453128] [2024-11-16 23:44:32,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008453128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:32,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:32,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:32,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544365013] [2024-11-16 23:44:32,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:32,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:32,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:32,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:32,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:32,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 537 [2024-11-16 23:44:32,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 459 transitions, 970 flow. Second operand has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:32,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:32,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 537 [2024-11-16 23:44:32,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:32,985 INFO L124 PetriNetUnfolderBase]: 95/2049 cut-off events. [2024-11-16 23:44:32,985 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-16 23:44:32,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2238 conditions, 2049 events. 95/2049 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11997 event pairs, 8 based on Foata normal form. 0/1833 useless extension candidates. Maximal degree in co-relation 2203. Up to 84 conditions per place. [2024-11-16 23:44:32,993 INFO L140 encePairwiseOnDemand]: 533/537 looper letters, 12 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2024-11-16 23:44:32,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 462 transitions, 1007 flow [2024-11-16 23:44:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:32,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:32,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1534 transitions. [2024-11-16 23:44:32,995 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.952203600248293 [2024-11-16 23:44:32,995 INFO L175 Difference]: Start difference. First operand has 457 places, 459 transitions, 970 flow. Second operand 3 states and 1534 transitions. [2024-11-16 23:44:32,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 462 transitions, 1007 flow [2024-11-16 23:44:32,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 462 transitions, 1007 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:44:33,001 INFO L231 Difference]: Finished difference. Result has 458 places, 459 transitions, 980 flow [2024-11-16 23:44:33,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=966, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=980, PETRI_PLACES=458, PETRI_TRANSITIONS=459} [2024-11-16 23:44:33,002 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -35 predicate places. [2024-11-16 23:44:33,002 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 459 transitions, 980 flow [2024-11-16 23:44:33,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 507.3333333333333) internal successors, (1522), 3 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:33,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:33,003 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:33,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:44:33,003 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:33,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:33,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1460079910, now seen corresponding path program 1 times [2024-11-16 23:44:33,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:33,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569784216] [2024-11-16 23:44:33,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:33,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:33,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:33,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:33,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569784216] [2024-11-16 23:44:33,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569784216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:33,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:33,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 23:44:33,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771606180] [2024-11-16 23:44:33,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:33,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:44:33,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:33,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:44:33,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 23:44:33,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 537 [2024-11-16 23:44:33,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 459 transitions, 980 flow. Second operand has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:33,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:33,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 537 [2024-11-16 23:44:33,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:33,693 INFO L124 PetriNetUnfolderBase]: 123/2892 cut-off events. [2024-11-16 23:44:33,693 INFO L125 PetriNetUnfolderBase]: For 19/37 co-relation queries the response was YES. [2024-11-16 23:44:33,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3304 conditions, 2892 events. 123/2892 cut-off events. For 19/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 18189 event pairs, 18 based on Foata normal form. 8/2634 useless extension candidates. Maximal degree in co-relation 3267. Up to 100 conditions per place. [2024-11-16 23:44:33,705 INFO L140 encePairwiseOnDemand]: 516/537 looper letters, 44 selfloop transitions, 28 changer transitions 0/494 dead transitions. [2024-11-16 23:44:33,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 494 transitions, 1199 flow [2024-11-16 23:44:33,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 23:44:33,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 23:44:33,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4873 transitions. [2024-11-16 23:44:33,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9074487895716946 [2024-11-16 23:44:33,712 INFO L175 Difference]: Start difference. First operand has 458 places, 459 transitions, 980 flow. Second operand 10 states and 4873 transitions. [2024-11-16 23:44:33,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 494 transitions, 1199 flow [2024-11-16 23:44:33,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 494 transitions, 1199 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:44:33,718 INFO L231 Difference]: Finished difference. Result has 471 places, 475 transitions, 1109 flow [2024-11-16 23:44:33,719 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=980, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1109, PETRI_PLACES=471, PETRI_TRANSITIONS=475} [2024-11-16 23:44:33,719 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -22 predicate places. [2024-11-16 23:44:33,720 INFO L471 AbstractCegarLoop]: Abstraction has has 471 places, 475 transitions, 1109 flow [2024-11-16 23:44:33,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:33,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:33,721 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:33,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:44:33,721 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:33,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:33,722 INFO L85 PathProgramCache]: Analyzing trace with hash 292444249, now seen corresponding path program 1 times [2024-11-16 23:44:33,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:33,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089662664] [2024-11-16 23:44:33,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:33,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:33,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:33,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:33,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089662664] [2024-11-16 23:44:33,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089662664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:33,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:33,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:44:33,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287183411] [2024-11-16 23:44:33,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:33,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:44:33,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:33,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:44:33,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:44:33,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 537 [2024-11-16 23:44:33,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 475 transitions, 1109 flow. Second operand has 5 states, 5 states have (on average 502.0) internal successors, (2510), 5 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:33,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:33,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 537 [2024-11-16 23:44:33,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:34,168 INFO L124 PetriNetUnfolderBase]: 120/2434 cut-off events. [2024-11-16 23:44:34,168 INFO L125 PetriNetUnfolderBase]: For 86/89 co-relation queries the response was YES. [2024-11-16 23:44:34,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2845 conditions, 2434 events. 120/2434 cut-off events. For 86/89 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 14418 event pairs, 33 based on Foata normal form. 5/2234 useless extension candidates. Maximal degree in co-relation 2801. Up to 114 conditions per place. [2024-11-16 23:44:34,180 INFO L140 encePairwiseOnDemand]: 529/537 looper letters, 17 selfloop transitions, 7 changer transitions 0/483 dead transitions. [2024-11-16 23:44:34,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 483 transitions, 1178 flow [2024-11-16 23:44:34,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 23:44:34,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 23:44:34,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2525 transitions. [2024-11-16 23:44:34,184 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9404096834264432 [2024-11-16 23:44:34,184 INFO L175 Difference]: Start difference. First operand has 471 places, 475 transitions, 1109 flow. Second operand 5 states and 2525 transitions. [2024-11-16 23:44:34,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 483 transitions, 1178 flow [2024-11-16 23:44:34,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 483 transitions, 1178 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:44:34,191 INFO L231 Difference]: Finished difference. Result has 477 places, 477 transitions, 1140 flow [2024-11-16 23:44:34,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=1109, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=475, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1140, PETRI_PLACES=477, PETRI_TRANSITIONS=477} [2024-11-16 23:44:34,192 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -16 predicate places. [2024-11-16 23:44:34,193 INFO L471 AbstractCegarLoop]: Abstraction has has 477 places, 477 transitions, 1140 flow [2024-11-16 23:44:34,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 502.0) internal successors, (2510), 5 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:34,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:34,194 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:34,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 23:44:34,194 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:34,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:34,195 INFO L85 PathProgramCache]: Analyzing trace with hash 344510805, now seen corresponding path program 1 times [2024-11-16 23:44:34,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:34,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522048632] [2024-11-16 23:44:34,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:34,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:34,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:34,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:34,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522048632] [2024-11-16 23:44:34,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522048632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:34,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:34,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:44:34,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446873851] [2024-11-16 23:44:34,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:34,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:44:34,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:34,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:44:34,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:44:34,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 501 out of 537 [2024-11-16 23:44:34,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 477 transitions, 1140 flow. Second operand has 5 states, 5 states have (on average 503.0) internal successors, (2515), 5 states have internal predecessors, (2515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:34,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:34,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 501 of 537 [2024-11-16 23:44:34,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:34,642 INFO L124 PetriNetUnfolderBase]: 104/2598 cut-off events. [2024-11-16 23:44:34,643 INFO L125 PetriNetUnfolderBase]: For 164/167 co-relation queries the response was YES. [2024-11-16 23:44:34,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3060 conditions, 2598 events. 104/2598 cut-off events. For 164/167 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 14823 event pairs, 24 based on Foata normal form. 5/2391 useless extension candidates. Maximal degree in co-relation 3012. Up to 78 conditions per place. [2024-11-16 23:44:34,656 INFO L140 encePairwiseOnDemand]: 528/537 looper letters, 17 selfloop transitions, 12 changer transitions 0/486 dead transitions. [2024-11-16 23:44:34,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 486 transitions, 1224 flow [2024-11-16 23:44:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:44:34,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:44:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3032 transitions. [2024-11-16 23:44:34,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9410304158907511 [2024-11-16 23:44:34,660 INFO L175 Difference]: Start difference. First operand has 477 places, 477 transitions, 1140 flow. Second operand 6 states and 3032 transitions. [2024-11-16 23:44:34,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 486 transitions, 1224 flow [2024-11-16 23:44:34,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 486 transitions, 1215 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-16 23:44:34,668 INFO L231 Difference]: Finished difference. Result has 484 places, 481 transitions, 1197 flow [2024-11-16 23:44:34,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=1126, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1197, PETRI_PLACES=484, PETRI_TRANSITIONS=481} [2024-11-16 23:44:34,669 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -9 predicate places. [2024-11-16 23:44:34,669 INFO L471 AbstractCegarLoop]: Abstraction has has 484 places, 481 transitions, 1197 flow [2024-11-16 23:44:34,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 503.0) internal successors, (2515), 5 states have internal predecessors, (2515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:34,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:34,671 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:34,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 23:44:34,671 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:34,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1427191740, now seen corresponding path program 1 times [2024-11-16 23:44:34,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:34,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711695829] [2024-11-16 23:44:34,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:34,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:34,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:34,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711695829] [2024-11-16 23:44:34,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711695829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:34,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:34,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:34,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280977652] [2024-11-16 23:44:34,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:34,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:34,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:34,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:34,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:34,728 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 537 [2024-11-16 23:44:34,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 481 transitions, 1197 flow. Second operand has 3 states, 3 states have (on average 504.6666666666667) internal successors, (1514), 3 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:34,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:34,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 537 [2024-11-16 23:44:34,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:34,982 INFO L124 PetriNetUnfolderBase]: 64/2308 cut-off events. [2024-11-16 23:44:34,983 INFO L125 PetriNetUnfolderBase]: For 123/129 co-relation queries the response was YES. [2024-11-16 23:44:34,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2761 conditions, 2308 events. 64/2308 cut-off events. For 123/129 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 11905 event pairs, 0 based on Foata normal form. 0/2129 useless extension candidates. Maximal degree in co-relation 2709. Up to 99 conditions per place. [2024-11-16 23:44:34,991 INFO L140 encePairwiseOnDemand]: 534/537 looper letters, 11 selfloop transitions, 2 changer transitions 0/480 dead transitions. [2024-11-16 23:44:34,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 480 transitions, 1221 flow [2024-11-16 23:44:34,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:34,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:34,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1520 transitions. [2024-11-16 23:44:34,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9435133457479826 [2024-11-16 23:44:34,994 INFO L175 Difference]: Start difference. First operand has 484 places, 481 transitions, 1197 flow. Second operand 3 states and 1520 transitions. [2024-11-16 23:44:34,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 480 transitions, 1221 flow [2024-11-16 23:44:34,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 480 transitions, 1212 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-16 23:44:35,001 INFO L231 Difference]: Finished difference. Result has 484 places, 480 transitions, 1190 flow [2024-11-16 23:44:35,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=1186, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=478, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1190, PETRI_PLACES=484, PETRI_TRANSITIONS=480} [2024-11-16 23:44:35,002 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -9 predicate places. [2024-11-16 23:44:35,002 INFO L471 AbstractCegarLoop]: Abstraction has has 484 places, 480 transitions, 1190 flow [2024-11-16 23:44:35,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 504.6666666666667) internal successors, (1514), 3 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:35,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:35,002 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:35,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 23:44:35,003 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:35,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:35,003 INFO L85 PathProgramCache]: Analyzing trace with hash -2056422687, now seen corresponding path program 1 times [2024-11-16 23:44:35,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:35,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686085878] [2024-11-16 23:44:35,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:35,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:35,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:35,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:35,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686085878] [2024-11-16 23:44:35,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686085878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:35,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:35,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:44:35,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607275989] [2024-11-16 23:44:35,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:35,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:44:35,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:35,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:44:35,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:44:35,600 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 537 [2024-11-16 23:44:35,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 484 places, 480 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 455.6666666666667) internal successors, (2734), 6 states have internal predecessors, (2734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:35,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:35,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 537 [2024-11-16 23:44:35,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:36,042 INFO L124 PetriNetUnfolderBase]: 258/3182 cut-off events. [2024-11-16 23:44:36,042 INFO L125 PetriNetUnfolderBase]: For 191/191 co-relation queries the response was YES. [2024-11-16 23:44:36,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4290 conditions, 3182 events. 258/3182 cut-off events. For 191/191 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 20420 event pairs, 164 based on Foata normal form. 0/2932 useless extension candidates. Maximal degree in co-relation 4237. Up to 654 conditions per place. [2024-11-16 23:44:36,056 INFO L140 encePairwiseOnDemand]: 531/537 looper letters, 60 selfloop transitions, 5 changer transitions 0/479 dead transitions. [2024-11-16 23:44:36,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 479 transitions, 1318 flow [2024-11-16 23:44:36,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:44:36,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:44:36,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2786 transitions. [2024-11-16 23:44:36,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8646803227808815 [2024-11-16 23:44:36,061 INFO L175 Difference]: Start difference. First operand has 484 places, 480 transitions, 1190 flow. Second operand 6 states and 2786 transitions. [2024-11-16 23:44:36,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 479 transitions, 1318 flow [2024-11-16 23:44:36,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 479 transitions, 1314 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:44:36,068 INFO L231 Difference]: Finished difference. Result has 486 places, 479 transitions, 1194 flow [2024-11-16 23:44:36,069 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=1184, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=479, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1194, PETRI_PLACES=486, PETRI_TRANSITIONS=479} [2024-11-16 23:44:36,069 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -7 predicate places. [2024-11-16 23:44:36,070 INFO L471 AbstractCegarLoop]: Abstraction has has 486 places, 479 transitions, 1194 flow [2024-11-16 23:44:36,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 455.6666666666667) internal successors, (2734), 6 states have internal predecessors, (2734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:36,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:36,070 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:36,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 23:44:36,071 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:36,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:36,071 INFO L85 PathProgramCache]: Analyzing trace with hash 546294066, now seen corresponding path program 1 times [2024-11-16 23:44:36,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:36,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437441658] [2024-11-16 23:44:36,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:36,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:36,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:36,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:36,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437441658] [2024-11-16 23:44:36,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437441658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:36,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:36,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:36,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082229120] [2024-11-16 23:44:36,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:36,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:36,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:36,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:36,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:36,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 537 [2024-11-16 23:44:36,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 479 transitions, 1194 flow. Second operand has 3 states, 3 states have (on average 504.6666666666667) internal successors, (1514), 3 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:36,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:36,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 537 [2024-11-16 23:44:36,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:36,356 INFO L124 PetriNetUnfolderBase]: 64/2293 cut-off events. [2024-11-16 23:44:36,356 INFO L125 PetriNetUnfolderBase]: For 100/106 co-relation queries the response was YES. [2024-11-16 23:44:36,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2753 conditions, 2293 events. 64/2293 cut-off events. For 100/106 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 11818 event pairs, 0 based on Foata normal form. 0/2129 useless extension candidates. Maximal degree in co-relation 2701. Up to 99 conditions per place. [2024-11-16 23:44:36,366 INFO L140 encePairwiseOnDemand]: 534/537 looper letters, 11 selfloop transitions, 2 changer transitions 0/478 dead transitions. [2024-11-16 23:44:36,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 478 transitions, 1218 flow [2024-11-16 23:44:36,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:36,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1520 transitions. [2024-11-16 23:44:36,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9435133457479826 [2024-11-16 23:44:36,369 INFO L175 Difference]: Start difference. First operand has 486 places, 479 transitions, 1194 flow. Second operand 3 states and 1520 transitions. [2024-11-16 23:44:36,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 478 transitions, 1218 flow [2024-11-16 23:44:36,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 478 transitions, 1208 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:44:36,379 INFO L231 Difference]: Finished difference. Result has 482 places, 478 transitions, 1186 flow [2024-11-16 23:44:36,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=1182, PETRI_DIFFERENCE_MINUEND_PLACES=480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1186, PETRI_PLACES=482, PETRI_TRANSITIONS=478} [2024-11-16 23:44:36,382 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -11 predicate places. [2024-11-16 23:44:36,383 INFO L471 AbstractCegarLoop]: Abstraction has has 482 places, 478 transitions, 1186 flow [2024-11-16 23:44:36,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 504.6666666666667) internal successors, (1514), 3 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:36,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:36,383 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:36,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 23:44:36,384 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:36,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:36,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1442014731, now seen corresponding path program 1 times [2024-11-16 23:44:36,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:36,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795991092] [2024-11-16 23:44:36,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:36,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:36,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:36,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795991092] [2024-11-16 23:44:36,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795991092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:36,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:36,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:36,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443773259] [2024-11-16 23:44:36,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:36,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:36,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:36,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:36,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:36,447 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 537 [2024-11-16 23:44:36,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 478 transitions, 1186 flow. Second operand has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:36,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:36,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 537 [2024-11-16 23:44:36,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:36,663 INFO L124 PetriNetUnfolderBase]: 64/2251 cut-off events. [2024-11-16 23:44:36,663 INFO L125 PetriNetUnfolderBase]: For 100/106 co-relation queries the response was YES. [2024-11-16 23:44:36,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2721 conditions, 2251 events. 64/2251 cut-off events. For 100/106 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 11461 event pairs, 0 based on Foata normal form. 0/2129 useless extension candidates. Maximal degree in co-relation 2670. Up to 84 conditions per place. [2024-11-16 23:44:36,672 INFO L140 encePairwiseOnDemand]: 532/537 looper letters, 12 selfloop transitions, 1 changer transitions 0/474 dead transitions. [2024-11-16 23:44:36,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 480 places, 474 transitions, 1204 flow [2024-11-16 23:44:36,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:36,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:36,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1517 transitions. [2024-11-16 23:44:36,675 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9416511483550589 [2024-11-16 23:44:36,675 INFO L175 Difference]: Start difference. First operand has 482 places, 478 transitions, 1186 flow. Second operand 3 states and 1517 transitions. [2024-11-16 23:44:36,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 480 places, 474 transitions, 1204 flow [2024-11-16 23:44:36,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 474 transitions, 1200 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:44:36,681 INFO L231 Difference]: Finished difference. Result has 478 places, 474 transitions, 1176 flow [2024-11-16 23:44:36,682 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=1174, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1176, PETRI_PLACES=478, PETRI_TRANSITIONS=474} [2024-11-16 23:44:36,682 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -15 predicate places. [2024-11-16 23:44:36,682 INFO L471 AbstractCegarLoop]: Abstraction has has 478 places, 474 transitions, 1176 flow [2024-11-16 23:44:36,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:36,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:36,683 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:36,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 23:44:36,683 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:36,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:36,684 INFO L85 PathProgramCache]: Analyzing trace with hash 749744510, now seen corresponding path program 1 times [2024-11-16 23:44:36,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:36,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188936859] [2024-11-16 23:44:36,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:36,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:37,086 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 23:44:37,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:37,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188936859] [2024-11-16 23:44:37,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188936859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:37,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:37,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:44:37,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457526902] [2024-11-16 23:44:37,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:37,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:44:37,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:37,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:44:37,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:44:37,660 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 478 out of 537 [2024-11-16 23:44:37,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 474 transitions, 1176 flow. Second operand has 6 states, 6 states have (on average 480.8333333333333) internal successors, (2885), 6 states have internal predecessors, (2885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:37,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:37,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 478 of 537 [2024-11-16 23:44:37,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:38,085 INFO L124 PetriNetUnfolderBase]: 242/3506 cut-off events. [2024-11-16 23:44:38,085 INFO L125 PetriNetUnfolderBase]: For 196/197 co-relation queries the response was YES. [2024-11-16 23:44:38,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4486 conditions, 3506 events. 242/3506 cut-off events. For 196/197 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 23108 event pairs, 82 based on Foata normal form. 0/3273 useless extension candidates. Maximal degree in co-relation 4434. Up to 402 conditions per place. [2024-11-16 23:44:38,103 INFO L140 encePairwiseOnDemand]: 526/537 looper letters, 44 selfloop transitions, 22 changer transitions 0/499 dead transitions. [2024-11-16 23:44:38,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 499 transitions, 1362 flow [2024-11-16 23:44:38,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:44:38,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:44:38,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2933 transitions. [2024-11-16 23:44:38,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9103041589075108 [2024-11-16 23:44:38,111 INFO L175 Difference]: Start difference. First operand has 478 places, 474 transitions, 1176 flow. Second operand 6 states and 2933 transitions. [2024-11-16 23:44:38,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 499 transitions, 1362 flow [2024-11-16 23:44:38,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 499 transitions, 1361 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:44:38,118 INFO L231 Difference]: Finished difference. Result has 487 places, 495 transitions, 1325 flow [2024-11-16 23:44:38,119 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=1175, PETRI_DIFFERENCE_MINUEND_PLACES=477, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=474, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1325, PETRI_PLACES=487, PETRI_TRANSITIONS=495} [2024-11-16 23:44:38,119 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -6 predicate places. [2024-11-16 23:44:38,119 INFO L471 AbstractCegarLoop]: Abstraction has has 487 places, 495 transitions, 1325 flow [2024-11-16 23:44:38,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 480.8333333333333) internal successors, (2885), 6 states have internal predecessors, (2885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:38,120 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:38,120 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:38,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 23:44:38,120 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:38,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:38,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1953394833, now seen corresponding path program 1 times [2024-11-16 23:44:38,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:38,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693541169] [2024-11-16 23:44:38,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:38,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:38,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:44:38,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:38,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693541169] [2024-11-16 23:44:38,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693541169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:38,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:38,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:44:38,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139427724] [2024-11-16 23:44:38,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:38,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:44:38,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:38,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:44:38,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:44:38,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 500 out of 537 [2024-11-16 23:44:38,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 495 transitions, 1325 flow. Second operand has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:38,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:38,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 500 of 537 [2024-11-16 23:44:38,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:38,552 INFO L124 PetriNetUnfolderBase]: 128/2819 cut-off events. [2024-11-16 23:44:38,552 INFO L125 PetriNetUnfolderBase]: For 132/141 co-relation queries the response was YES. [2024-11-16 23:44:38,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3528 conditions, 2819 events. 128/2819 cut-off events. For 132/141 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 16332 event pairs, 4 based on Foata normal form. 0/2704 useless extension candidates. Maximal degree in co-relation 3473. Up to 105 conditions per place. [2024-11-16 23:44:38,566 INFO L140 encePairwiseOnDemand]: 530/537 looper letters, 12 selfloop transitions, 3 changer transitions 0/493 dead transitions. [2024-11-16 23:44:38,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 493 transitions, 1351 flow [2024-11-16 23:44:38,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:44:38,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:44:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1519 transitions. [2024-11-16 23:44:38,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9428926132836747 [2024-11-16 23:44:38,569 INFO L175 Difference]: Start difference. First operand has 487 places, 495 transitions, 1325 flow. Second operand 3 states and 1519 transitions. [2024-11-16 23:44:38,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 493 transitions, 1351 flow [2024-11-16 23:44:38,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 485 places, 493 transitions, 1351 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:44:38,577 INFO L231 Difference]: Finished difference. Result has 486 places, 493 transitions, 1334 flow [2024-11-16 23:44:38,577 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=1317, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1334, PETRI_PLACES=486, PETRI_TRANSITIONS=493} [2024-11-16 23:44:38,578 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, -7 predicate places. [2024-11-16 23:44:38,578 INFO L471 AbstractCegarLoop]: Abstraction has has 486 places, 493 transitions, 1334 flow [2024-11-16 23:44:38,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 502.3333333333333) internal successors, (1507), 3 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:38,578 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:38,578 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:38,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 23:44:38,579 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:38,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:38,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1967381713, now seen corresponding path program 1 times [2024-11-16 23:44:38,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:38,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370821975] [2024-11-16 23:44:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:38,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:44:38,992 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 23:44:38,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:44:38,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370821975] [2024-11-16 23:44:38,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370821975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:44:38,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:44:38,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:44:38,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447588600] [2024-11-16 23:44:38,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:44:38,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:44:38,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:44:38,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:44:38,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:44:39,326 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 537 [2024-11-16 23:44:39,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 486 places, 493 transitions, 1334 flow. Second operand has 6 states, 6 states have (on average 459.6666666666667) internal successors, (2758), 6 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:39,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:44:39,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 537 [2024-11-16 23:44:39,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:44:39,916 INFO L124 PetriNetUnfolderBase]: 575/4353 cut-off events. [2024-11-16 23:44:39,917 INFO L125 PetriNetUnfolderBase]: For 594/619 co-relation queries the response was YES. [2024-11-16 23:44:39,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6757 conditions, 4353 events. 575/4353 cut-off events. For 594/619 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 30674 event pairs, 232 based on Foata normal form. 4/4123 useless extension candidates. Maximal degree in co-relation 6700. Up to 1126 conditions per place. [2024-11-16 23:44:39,937 INFO L140 encePairwiseOnDemand]: 518/537 looper letters, 85 selfloop transitions, 55 changer transitions 0/550 dead transitions. [2024-11-16 23:44:39,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 550 transitions, 1764 flow [2024-11-16 23:44:39,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:44:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:44:39,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2855 transitions. [2024-11-16 23:44:39,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8860955927995035 [2024-11-16 23:44:39,941 INFO L175 Difference]: Start difference. First operand has 486 places, 493 transitions, 1334 flow. Second operand 6 states and 2855 transitions. [2024-11-16 23:44:39,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 550 transitions, 1764 flow [2024-11-16 23:44:39,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 491 places, 550 transitions, 1764 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:44:39,951 INFO L231 Difference]: Finished difference. Result has 496 places, 546 transitions, 1728 flow [2024-11-16 23:44:39,951 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=537, PETRI_DIFFERENCE_MINUEND_FLOW=1334, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1728, PETRI_PLACES=496, PETRI_TRANSITIONS=546} [2024-11-16 23:44:39,952 INFO L277 CegarLoopForPetriNet]: 493 programPoint places, 3 predicate places. [2024-11-16 23:44:39,952 INFO L471 AbstractCegarLoop]: Abstraction has has 496 places, 546 transitions, 1728 flow [2024-11-16 23:44:39,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 459.6666666666667) internal successors, (2758), 6 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:44:39,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:44:39,953 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:44:39,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 23:44:39,953 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err4ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2024-11-16 23:44:39,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:44:39,953 INFO L85 PathProgramCache]: Analyzing trace with hash -796282788, now seen corresponding path program 1 times [2024-11-16 23:44:39,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:44:39,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153746201] [2024-11-16 23:44:39,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:44:39,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:44:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat