./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:45:01,907 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:45:01,999 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 16:45:02,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:45:02,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:45:02,036 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:45:02,037 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:45:02,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:45:02,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:45:02,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:45:02,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:45:02,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:45:02,041 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:45:02,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:45:02,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:45:02,042 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:45:02,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:45:02,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:45:02,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:45:02,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:45:02,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:45:02,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:45:02,046 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 16:45:02,046 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:45:02,046 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 16:45:02,046 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:45:02,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:45:02,047 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:45:02,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:45:02,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:45:02,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:45:02,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:45:02,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:45:02,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:45:02,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:45:02,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:45:02,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:45:02,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:45:02,050 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:45:02,050 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:45:02,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:45:02,051 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cc273f13a619f37768d5108c297b75ab7c37145fe391daced9c134730721251 [2024-10-11 16:45:02,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:45:02,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:45:02,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:45:02,382 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:45:02,383 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:45:02,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i [2024-10-11 16:45:03,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:45:04,171 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:45:04,172 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_ok.i [2024-10-11 16:45:04,197 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b3053a85a/347d55d4efc8476484f261c2a3459d97/FLAGe2f9d2f94 [2024-10-11 16:45:04,216 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/b3053a85a/347d55d4efc8476484f261c2a3459d97 [2024-10-11 16:45:04,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:45:04,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:45:04,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:45:04,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:45:04,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:45:04,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:04,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a740ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04, skipping insertion in model container [2024-10-11 16:45:04,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:04,288 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:45:04,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:45:04,851 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:45:04,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:45:04,973 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:45:04,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04 WrapperNode [2024-10-11 16:45:04,974 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:45:04,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:45:04,975 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:45:04,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:45:04,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:05,007 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:05,049 INFO L138 Inliner]: procedures = 274, calls = 51, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 374 [2024-10-11 16:45:05,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:45:05,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:45:05,054 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:45:05,054 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:45:05,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:05,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:05,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:05,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:05,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:05,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:05,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:05,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:05,118 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:45:05,123 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:45:05,123 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:45:05,123 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:45:05,124 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04" (1/1) ... [2024-10-11 16:45:05,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:45:05,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:05,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 16:45:05,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 16:45:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-10-11 16:45:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-10-11 16:45:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-10-11 16:45:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-10-11 16:45:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 16:45:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 16:45:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 16:45:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 16:45:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:45:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 16:45:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:45:05,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:45:05,232 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 16:45:05,396 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:45:05,398 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:45:06,083 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 16:45:06,083 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:45:06,129 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:45:06,130 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 16:45:06,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:06 BoogieIcfgContainer [2024-10-11 16:45:06,130 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:45:06,132 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:45:06,133 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:45:06,136 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:45:06,136 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:45:04" (1/3) ... [2024-10-11 16:45:06,137 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22551260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:06, skipping insertion in model container [2024-10-11 16:45:06,137 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:04" (2/3) ... [2024-10-11 16:45:06,138 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22551260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:06, skipping insertion in model container [2024-10-11 16:45:06,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:06" (3/3) ... [2024-10-11 16:45:06,139 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok.i [2024-10-11 16:45:06,154 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:45:06,154 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2024-10-11 16:45:06,154 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 16:45:06,343 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 16:45:06,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 425 places, 433 transitions, 880 flow [2024-10-11 16:45:06,614 INFO L124 PetriNetUnfolderBase]: 15/431 cut-off events. [2024-10-11 16:45:06,615 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 16:45:06,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 431 events. 15/431 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 717 event pairs, 0 based on Foata normal form. 0/383 useless extension candidates. Maximal degree in co-relation 311. Up to 3 conditions per place. [2024-10-11 16:45:06,629 INFO L82 GeneralOperation]: Start removeDead. Operand has 425 places, 433 transitions, 880 flow [2024-10-11 16:45:06,644 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 418 places, 426 transitions, 861 flow [2024-10-11 16:45:06,654 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:45:06,660 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;@15f5da70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:45:06,660 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-10-11 16:45:06,667 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:45:06,667 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-10-11 16:45:06,667 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:45:06,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:06,668 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:06,669 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:06,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:06,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1452446528, now seen corresponding path program 1 times [2024-10-11 16:45:06,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:06,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440211770] [2024-10-11 16:45:06,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:06,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:06,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:06,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:06,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440211770] [2024-10-11 16:45:06,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440211770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:06,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:06,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:06,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641097869] [2024-10-11 16:45:06,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:06,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:06,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:06,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:06,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:07,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 406 out of 433 [2024-10-11 16:45:07,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 426 transitions, 861 flow. Second operand has 3 states, 3 states have (on average 407.3333333333333) internal successors, (1222), 3 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:07,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:07,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 406 of 433 [2024-10-11 16:45:07,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:07,418 INFO L124 PetriNetUnfolderBase]: 40/945 cut-off events. [2024-10-11 16:45:07,419 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-10-11 16:45:07,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 945 events. 40/945 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4370 event pairs, 19 based on Foata normal form. 13/850 useless extension candidates. Maximal degree in co-relation 881. Up to 52 conditions per place. [2024-10-11 16:45:07,432 INFO L140 encePairwiseOnDemand]: 425/433 looper letters, 13 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2024-10-11 16:45:07,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 411 transitions, 861 flow [2024-10-11 16:45:07,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:07,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:07,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1239 transitions. [2024-10-11 16:45:07,454 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.953810623556582 [2024-10-11 16:45:07,458 INFO L175 Difference]: Start difference. First operand has 418 places, 426 transitions, 861 flow. Second operand 3 states and 1239 transitions. [2024-10-11 16:45:07,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 411 transitions, 861 flow [2024-10-11 16:45:07,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 411 transitions, 856 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 16:45:07,475 INFO L231 Difference]: Finished difference. Result has 408 places, 411 transitions, 830 flow [2024-10-11 16:45:07,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=408, PETRI_TRANSITIONS=411} [2024-10-11 16:45:07,483 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -10 predicate places. [2024-10-11 16:45:07,484 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 411 transitions, 830 flow [2024-10-11 16:45:07,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 407.3333333333333) internal successors, (1222), 3 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:07,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:07,486 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] [2024-10-11 16:45:07,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:45:07,487 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:07,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:07,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1611174636, now seen corresponding path program 1 times [2024-10-11 16:45:07,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:07,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024037671] [2024-10-11 16:45:07,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:07,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:07,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:07,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:07,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024037671] [2024-10-11 16:45:07,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024037671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:07,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:07,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:07,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895498171] [2024-10-11 16:45:07,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:07,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:07,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:07,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:07,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:07,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 406 out of 433 [2024-10-11 16:45:07,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 411 transitions, 830 flow. Second operand has 3 states, 3 states have (on average 407.3333333333333) internal successors, (1222), 3 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:07,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:07,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 406 of 433 [2024-10-11 16:45:07,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:07,839 INFO L124 PetriNetUnfolderBase]: 43/1073 cut-off events. [2024-10-11 16:45:07,839 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-11 16:45:07,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1140 conditions, 1073 events. 43/1073 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5429 event pairs, 19 based on Foata normal form. 0/955 useless extension candidates. Maximal degree in co-relation 1104. Up to 52 conditions per place. [2024-10-11 16:45:07,850 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 13 selfloop transitions, 2 changer transitions 0/410 dead transitions. [2024-10-11 16:45:07,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 410 transitions, 858 flow [2024-10-11 16:45:07,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:07,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:07,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1234 transitions. [2024-10-11 16:45:07,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9499615088529638 [2024-10-11 16:45:07,854 INFO L175 Difference]: Start difference. First operand has 408 places, 411 transitions, 830 flow. Second operand 3 states and 1234 transitions. [2024-10-11 16:45:07,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 410 transitions, 858 flow [2024-10-11 16:45:07,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 410 transitions, 854 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:07,862 INFO L231 Difference]: Finished difference. Result has 407 places, 410 transitions, 828 flow [2024-10-11 16:45:07,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=828, PETRI_PLACES=407, PETRI_TRANSITIONS=410} [2024-10-11 16:45:07,863 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -11 predicate places. [2024-10-11 16:45:07,864 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 410 transitions, 828 flow [2024-10-11 16:45:07,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 407.3333333333333) internal successors, (1222), 3 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:07,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:07,865 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] [2024-10-11 16:45:07,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 16:45:07,866 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:07,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:07,867 INFO L85 PathProgramCache]: Analyzing trace with hash -2020235762, now seen corresponding path program 1 times [2024-10-11 16:45:07,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:07,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866197246] [2024-10-11 16:45:07,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:07,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:08,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:08,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866197246] [2024-10-11 16:45:08,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866197246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:08,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:08,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:08,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870960131] [2024-10-11 16:45:08,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:08,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:08,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:08,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:08,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:08,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 433 [2024-10-11 16:45:08,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 410 transitions, 828 flow. Second operand has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:08,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:08,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 433 [2024-10-11 16:45:08,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:10,783 INFO L124 PetriNetUnfolderBase]: 2177/9143 cut-off events. [2024-10-11 16:45:10,784 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-11 16:45:10,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13244 conditions, 9143 events. 2177/9143 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 79959 event pairs, 1832 based on Foata normal form. 0/8187 useless extension candidates. Maximal degree in co-relation 13204. Up to 4013 conditions per place. [2024-10-11 16:45:10,845 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 100 selfloop transitions, 5 changer transitions 0/409 dead transitions. [2024-10-11 16:45:10,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 409 transitions, 1036 flow [2024-10-11 16:45:10,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:10,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2008 transitions. [2024-10-11 16:45:10,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729022324865281 [2024-10-11 16:45:10,851 INFO L175 Difference]: Start difference. First operand has 407 places, 410 transitions, 828 flow. Second operand 6 states and 2008 transitions. [2024-10-11 16:45:10,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 409 transitions, 1036 flow [2024-10-11 16:45:10,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 409 transitions, 1032 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:10,859 INFO L231 Difference]: Finished difference. Result has 409 places, 409 transitions, 832 flow [2024-10-11 16:45:10,860 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=832, PETRI_PLACES=409, PETRI_TRANSITIONS=409} [2024-10-11 16:45:10,862 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -9 predicate places. [2024-10-11 16:45:10,862 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 409 transitions, 832 flow [2024-10-11 16:45:10,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:10,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:10,864 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] [2024-10-11 16:45:10,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 16:45:10,864 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:10,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:10,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1817878975, now seen corresponding path program 1 times [2024-10-11 16:45:10,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:10,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140377097] [2024-10-11 16:45:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:10,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:11,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:11,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:11,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140377097] [2024-10-11 16:45:11,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140377097] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:11,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:11,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:11,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582666831] [2024-10-11 16:45:11,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:11,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:11,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:11,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:11,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:11,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 433 [2024-10-11 16:45:11,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 409 transitions, 832 flow. Second operand has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:11,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:11,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 433 [2024-10-11 16:45:11,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:13,276 INFO L124 PetriNetUnfolderBase]: 2177/9142 cut-off events. [2024-10-11 16:45:13,277 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-11 16:45:13,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13246 conditions, 9142 events. 2177/9142 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 80013 event pairs, 1832 based on Foata normal form. 0/8187 useless extension candidates. Maximal degree in co-relation 13190. Up to 4013 conditions per place. [2024-10-11 16:45:13,444 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 100 selfloop transitions, 5 changer transitions 0/408 dead transitions. [2024-10-11 16:45:13,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 408 transitions, 1040 flow [2024-10-11 16:45:13,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:13,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:13,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2008 transitions. [2024-10-11 16:45:13,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729022324865281 [2024-10-11 16:45:13,450 INFO L175 Difference]: Start difference. First operand has 409 places, 409 transitions, 832 flow. Second operand 6 states and 2008 transitions. [2024-10-11 16:45:13,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 408 transitions, 1040 flow [2024-10-11 16:45:13,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 408 transitions, 1030 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:13,459 INFO L231 Difference]: Finished difference. Result has 408 places, 408 transitions, 830 flow [2024-10-11 16:45:13,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=830, PETRI_PLACES=408, PETRI_TRANSITIONS=408} [2024-10-11 16:45:13,461 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -10 predicate places. [2024-10-11 16:45:13,461 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 408 transitions, 830 flow [2024-10-11 16:45:13,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:13,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:13,463 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] [2024-10-11 16:45:13,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 16:45:13,464 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:13,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:13,464 INFO L85 PathProgramCache]: Analyzing trace with hash 2145519330, now seen corresponding path program 1 times [2024-10-11 16:45:13,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:13,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540800833] [2024-10-11 16:45:13,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:13,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:13,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:13,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:13,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540800833] [2024-10-11 16:45:13,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540800833] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:13,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:13,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:13,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796050583] [2024-10-11 16:45:13,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:13,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:13,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:13,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:13,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:14,206 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 433 [2024-10-11 16:45:14,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 408 transitions, 830 flow. Second operand has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:14,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:14,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 433 [2024-10-11 16:45:14,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:15,604 INFO L124 PetriNetUnfolderBase]: 2177/9141 cut-off events. [2024-10-11 16:45:15,604 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-11 16:45:15,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13245 conditions, 9141 events. 2177/9141 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 79896 event pairs, 1832 based on Foata normal form. 0/8187 useless extension candidates. Maximal degree in co-relation 13181. Up to 4013 conditions per place. [2024-10-11 16:45:15,670 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 100 selfloop transitions, 5 changer transitions 0/407 dead transitions. [2024-10-11 16:45:15,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 407 transitions, 1038 flow [2024-10-11 16:45:15,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:15,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:15,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2008 transitions. [2024-10-11 16:45:15,677 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729022324865281 [2024-10-11 16:45:15,678 INFO L175 Difference]: Start difference. First operand has 408 places, 408 transitions, 830 flow. Second operand 6 states and 2008 transitions. [2024-10-11 16:45:15,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 407 transitions, 1038 flow [2024-10-11 16:45:15,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 407 transitions, 1028 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:15,693 INFO L231 Difference]: Finished difference. Result has 407 places, 407 transitions, 828 flow [2024-10-11 16:45:15,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=828, PETRI_PLACES=407, PETRI_TRANSITIONS=407} [2024-10-11 16:45:15,698 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -11 predicate places. [2024-10-11 16:45:15,698 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 407 transitions, 828 flow [2024-10-11 16:45:15,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 318.3333333333333) internal successors, (1910), 6 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:15,700 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:15,700 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] [2024-10-11 16:45:15,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 16:45:15,702 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:15,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:15,702 INFO L85 PathProgramCache]: Analyzing trace with hash 391065413, now seen corresponding path program 1 times [2024-10-11 16:45:15,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:15,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36528878] [2024-10-11 16:45:15,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:15,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:16,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:16,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36528878] [2024-10-11 16:45:16,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36528878] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:16,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:16,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:16,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318051472] [2024-10-11 16:45:16,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:16,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:16,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:16,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:16,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:16,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 433 [2024-10-11 16:45:16,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 407 transitions, 828 flow. Second operand has 6 states, 6 states have (on average 366.1666666666667) internal successors, (2197), 6 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:16,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:16,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 433 [2024-10-11 16:45:16,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:17,535 INFO L124 PetriNetUnfolderBase]: 502/4866 cut-off events. [2024-10-11 16:45:17,535 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:45:17,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5736 conditions, 4866 events. 502/4866 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 39114 event pairs, 344 based on Foata normal form. 0/4284 useless extension candidates. Maximal degree in co-relation 5654. Up to 811 conditions per place. [2024-10-11 16:45:17,564 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 54 selfloop transitions, 5 changer transitions 0/406 dead transitions. [2024-10-11 16:45:17,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 406 transitions, 944 flow [2024-10-11 16:45:17,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:17,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:17,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2238 transitions. [2024-10-11 16:45:17,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8614318706697459 [2024-10-11 16:45:17,570 INFO L175 Difference]: Start difference. First operand has 407 places, 407 transitions, 828 flow. Second operand 6 states and 2238 transitions. [2024-10-11 16:45:17,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 406 transitions, 944 flow [2024-10-11 16:45:17,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 406 transitions, 934 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:17,578 INFO L231 Difference]: Finished difference. Result has 406 places, 406 transitions, 826 flow [2024-10-11 16:45:17,579 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=826, PETRI_PLACES=406, PETRI_TRANSITIONS=406} [2024-10-11 16:45:17,579 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -12 predicate places. [2024-10-11 16:45:17,581 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 406 transitions, 826 flow [2024-10-11 16:45:17,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 366.1666666666667) internal successors, (2197), 6 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:17,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:17,583 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] [2024-10-11 16:45:17,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 16:45:17,584 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:17,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:17,584 INFO L85 PathProgramCache]: Analyzing trace with hash -454542045, now seen corresponding path program 1 times [2024-10-11 16:45:17,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:17,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428915403] [2024-10-11 16:45:17,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:17,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:18,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:18,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:18,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428915403] [2024-10-11 16:45:18,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428915403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:18,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:18,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:18,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704183133] [2024-10-11 16:45:18,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:18,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:18,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:18,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:18,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:18,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 433 [2024-10-11 16:45:18,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 406 transitions, 826 flow. Second operand has 6 states, 6 states have (on average 366.1666666666667) internal successors, (2197), 6 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:18,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:18,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 433 [2024-10-11 16:45:18,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:19,500 INFO L124 PetriNetUnfolderBase]: 502/4865 cut-off events. [2024-10-11 16:45:19,500 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:45:19,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5735 conditions, 4865 events. 502/4865 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 39089 event pairs, 344 based on Foata normal form. 0/4284 useless extension candidates. Maximal degree in co-relation 5615. Up to 811 conditions per place. [2024-10-11 16:45:19,533 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 54 selfloop transitions, 5 changer transitions 0/405 dead transitions. [2024-10-11 16:45:19,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 405 transitions, 942 flow [2024-10-11 16:45:19,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:19,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:19,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2238 transitions. [2024-10-11 16:45:19,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8614318706697459 [2024-10-11 16:45:19,539 INFO L175 Difference]: Start difference. First operand has 406 places, 406 transitions, 826 flow. Second operand 6 states and 2238 transitions. [2024-10-11 16:45:19,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 405 transitions, 942 flow [2024-10-11 16:45:19,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 405 transitions, 932 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:19,548 INFO L231 Difference]: Finished difference. Result has 405 places, 405 transitions, 824 flow [2024-10-11 16:45:19,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=824, PETRI_PLACES=405, PETRI_TRANSITIONS=405} [2024-10-11 16:45:19,550 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -13 predicate places. [2024-10-11 16:45:19,550 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 405 transitions, 824 flow [2024-10-11 16:45:19,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 366.1666666666667) internal successors, (2197), 6 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:19,552 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:19,552 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] [2024-10-11 16:45:19,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 16:45:19,553 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:19,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:19,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1463677188, now seen corresponding path program 1 times [2024-10-11 16:45:19,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:19,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881024592] [2024-10-11 16:45:19,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:19,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:19,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:19,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:19,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881024592] [2024-10-11 16:45:19,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881024592] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:19,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:19,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:19,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329376890] [2024-10-11 16:45:19,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:19,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:19,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:19,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:19,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:19,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 433 [2024-10-11 16:45:19,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 405 transitions, 824 flow. Second operand has 3 states, 3 states have (on average 411.6666666666667) internal successors, (1235), 3 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:19,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:19,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 433 [2024-10-11 16:45:19,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:19,833 INFO L124 PetriNetUnfolderBase]: 53/997 cut-off events. [2024-10-11 16:45:19,834 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-11 16:45:19,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 997 events. 53/997 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4917 event pairs, 14 based on Foata normal form. 0/893 useless extension candidates. Maximal degree in co-relation 1006. Up to 56 conditions per place. [2024-10-11 16:45:19,845 INFO L140 encePairwiseOnDemand]: 428/433 looper letters, 17 selfloop transitions, 4 changer transitions 0/413 dead transitions. [2024-10-11 16:45:19,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 413 transitions, 885 flow [2024-10-11 16:45:19,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:19,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1252 transitions. [2024-10-11 16:45:19,849 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9638183217859893 [2024-10-11 16:45:19,849 INFO L175 Difference]: Start difference. First operand has 405 places, 405 transitions, 824 flow. Second operand 3 states and 1252 transitions. [2024-10-11 16:45:19,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 413 transitions, 885 flow [2024-10-11 16:45:19,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 413 transitions, 875 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:19,861 INFO L231 Difference]: Finished difference. Result has 404 places, 408 transitions, 844 flow [2024-10-11 16:45:19,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=814, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=844, PETRI_PLACES=404, PETRI_TRANSITIONS=408} [2024-10-11 16:45:19,863 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -14 predicate places. [2024-10-11 16:45:19,864 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 408 transitions, 844 flow [2024-10-11 16:45:19,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.6666666666667) internal successors, (1235), 3 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:19,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:19,866 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] [2024-10-11 16:45:19,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 16:45:19,866 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:19,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:19,869 INFO L85 PathProgramCache]: Analyzing trace with hash 759729093, now seen corresponding path program 1 times [2024-10-11 16:45:19,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:19,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193978599] [2024-10-11 16:45:19,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:19,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:19,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:19,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:19,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193978599] [2024-10-11 16:45:19,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193978599] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:19,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:19,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:19,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210995439] [2024-10-11 16:45:19,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:19,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:19,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:19,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:19,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:19,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 433 [2024-10-11 16:45:19,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 408 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 412.0) internal successors, (1236), 3 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:19,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:19,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 433 [2024-10-11 16:45:19,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:20,208 INFO L124 PetriNetUnfolderBase]: 96/2060 cut-off events. [2024-10-11 16:45:20,208 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-10-11 16:45:20,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2238 conditions, 2060 events. 96/2060 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 13671 event pairs, 22 based on Foata normal form. 0/1839 useless extension candidates. Maximal degree in co-relation 1965. Up to 85 conditions per place. [2024-10-11 16:45:20,226 INFO L140 encePairwiseOnDemand]: 428/433 looper letters, 16 selfloop transitions, 4 changer transitions 0/415 dead transitions. [2024-10-11 16:45:20,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 415 transitions, 899 flow [2024-10-11 16:45:20,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:20,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:20,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1251 transitions. [2024-10-11 16:45:20,231 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9630484988452656 [2024-10-11 16:45:20,231 INFO L175 Difference]: Start difference. First operand has 404 places, 408 transitions, 844 flow. Second operand 3 states and 1251 transitions. [2024-10-11 16:45:20,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 415 transitions, 899 flow [2024-10-11 16:45:20,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 415 transitions, 891 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:20,241 INFO L231 Difference]: Finished difference. Result has 406 places, 411 transitions, 866 flow [2024-10-11 16:45:20,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=866, PETRI_PLACES=406, PETRI_TRANSITIONS=411} [2024-10-11 16:45:20,242 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -12 predicate places. [2024-10-11 16:45:20,242 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 411 transitions, 866 flow [2024-10-11 16:45:20,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 412.0) internal successors, (1236), 3 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:20,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:20,244 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:20,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 16:45:20,244 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:20,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:20,245 INFO L85 PathProgramCache]: Analyzing trace with hash 883360349, now seen corresponding path program 1 times [2024-10-11 16:45:20,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:20,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772601137] [2024-10-11 16:45:20,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:20,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:20,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:20,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:20,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772601137] [2024-10-11 16:45:20,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772601137] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:20,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:20,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:20,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274136627] [2024-10-11 16:45:20,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:20,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:20,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:20,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:20,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:20,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 412 out of 433 [2024-10-11 16:45:20,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 411 transitions, 866 flow. Second operand has 3 states, 3 states have (on average 413.6666666666667) internal successors, (1241), 3 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:20,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:20,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 412 of 433 [2024-10-11 16:45:20,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:20,697 INFO L124 PetriNetUnfolderBase]: 81/2136 cut-off events. [2024-10-11 16:45:20,697 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-11 16:45:20,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2325 conditions, 2136 events. 81/2136 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 12389 event pairs, 33 based on Foata normal form. 7/1929 useless extension candidates. Maximal degree in co-relation 1934. Up to 103 conditions per place. [2024-10-11 16:45:20,713 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 13 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2024-10-11 16:45:20,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 415 transitions, 906 flow [2024-10-11 16:45:20,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1252 transitions. [2024-10-11 16:45:20,718 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9638183217859893 [2024-10-11 16:45:20,718 INFO L175 Difference]: Start difference. First operand has 406 places, 411 transitions, 866 flow. Second operand 3 states and 1252 transitions. [2024-10-11 16:45:20,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 415 transitions, 906 flow [2024-10-11 16:45:20,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 415 transitions, 898 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:20,727 INFO L231 Difference]: Finished difference. Result has 407 places, 412 transitions, 870 flow [2024-10-11 16:45:20,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=870, PETRI_PLACES=407, PETRI_TRANSITIONS=412} [2024-10-11 16:45:20,728 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -11 predicate places. [2024-10-11 16:45:20,728 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 412 transitions, 870 flow [2024-10-11 16:45:20,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 413.6666666666667) internal successors, (1241), 3 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:20,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:20,730 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] [2024-10-11 16:45:20,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 16:45:20,730 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:20,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:20,731 INFO L85 PathProgramCache]: Analyzing trace with hash 502052831, now seen corresponding path program 1 times [2024-10-11 16:45:20,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:20,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045588605] [2024-10-11 16:45:20,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:20,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:20,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:20,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:20,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045588605] [2024-10-11 16:45:20,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045588605] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:20,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:20,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:20,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115983651] [2024-10-11 16:45:20,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:20,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:20,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:20,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:20,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:20,834 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 412 out of 433 [2024-10-11 16:45:20,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 412 transitions, 870 flow. Second operand has 3 states, 3 states have (on average 414.0) internal successors, (1242), 3 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:20,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:20,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 412 of 433 [2024-10-11 16:45:20,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:21,397 INFO L124 PetriNetUnfolderBase]: 136/3784 cut-off events. [2024-10-11 16:45:21,398 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-11 16:45:21,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4005 conditions, 3784 events. 136/3784 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 26236 event pairs, 40 based on Foata normal form. 9/3393 useless extension candidates. Maximal degree in co-relation 3630. Up to 113 conditions per place. [2024-10-11 16:45:21,433 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 13 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2024-10-11 16:45:21,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 416 transitions, 909 flow [2024-10-11 16:45:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:21,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:21,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1252 transitions. [2024-10-11 16:45:21,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9638183217859893 [2024-10-11 16:45:21,438 INFO L175 Difference]: Start difference. First operand has 407 places, 412 transitions, 870 flow. Second operand 3 states and 1252 transitions. [2024-10-11 16:45:21,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 416 transitions, 909 flow [2024-10-11 16:45:21,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 416 transitions, 907 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:21,447 INFO L231 Difference]: Finished difference. Result has 409 places, 413 transitions, 880 flow [2024-10-11 16:45:21,448 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=868, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=880, PETRI_PLACES=409, PETRI_TRANSITIONS=413} [2024-10-11 16:45:21,449 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -9 predicate places. [2024-10-11 16:45:21,449 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 413 transitions, 880 flow [2024-10-11 16:45:21,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 414.0) internal successors, (1242), 3 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:21,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:21,450 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] [2024-10-11 16:45:21,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 16:45:21,451 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:21,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:21,451 INFO L85 PathProgramCache]: Analyzing trace with hash 771778809, now seen corresponding path program 1 times [2024-10-11 16:45:21,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:21,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91013267] [2024-10-11 16:45:21,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:21,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:23,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:23,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:23,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91013267] [2024-10-11 16:45:23,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91013267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:23,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:23,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-11 16:45:23,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343436651] [2024-10-11 16:45:23,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:23,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 16:45:23,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:23,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 16:45:23,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-10-11 16:45:24,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 433 [2024-10-11 16:45:24,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 413 transitions, 880 flow. Second operand has 13 states, 13 states have (on average 385.9230769230769) internal successors, (5017), 13 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:24,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:24,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 433 [2024-10-11 16:45:24,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:25,152 INFO L124 PetriNetUnfolderBase]: 296/4732 cut-off events. [2024-10-11 16:45:25,152 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-10-11 16:45:25,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5381 conditions, 4732 events. 296/4732 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 40451 event pairs, 101 based on Foata normal form. 0/4213 useless extension candidates. Maximal degree in co-relation 4939. Up to 402 conditions per place. [2024-10-11 16:45:25,197 INFO L140 encePairwiseOnDemand]: 415/433 looper letters, 27 selfloop transitions, 17 changer transitions 0/417 dead transitions. [2024-10-11 16:45:25,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 417 transitions, 979 flow [2024-10-11 16:45:25,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 16:45:25,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 16:45:25,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4653 transitions. [2024-10-11 16:45:25,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8954965357967667 [2024-10-11 16:45:25,208 INFO L175 Difference]: Start difference. First operand has 409 places, 413 transitions, 880 flow. Second operand 12 states and 4653 transitions. [2024-10-11 16:45:25,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 417 transitions, 979 flow [2024-10-11 16:45:25,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 417 transitions, 977 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:25,217 INFO L231 Difference]: Finished difference. Result has 417 places, 411 transitions, 919 flow [2024-10-11 16:45:25,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=919, PETRI_PLACES=417, PETRI_TRANSITIONS=411} [2024-10-11 16:45:25,219 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -1 predicate places. [2024-10-11 16:45:25,219 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 411 transitions, 919 flow [2024-10-11 16:45:25,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 385.9230769230769) internal successors, (5017), 13 states have internal predecessors, (5017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:25,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:25,222 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] [2024-10-11 16:45:25,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 16:45:25,222 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:25,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:25,222 INFO L85 PathProgramCache]: Analyzing trace with hash -2139061273, now seen corresponding path program 1 times [2024-10-11 16:45:25,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:25,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491873399] [2024-10-11 16:45:25,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:25,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:25,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:25,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:25,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491873399] [2024-10-11 16:45:25,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491873399] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:25,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:25,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:25,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416526168] [2024-10-11 16:45:25,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:25,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:25,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:25,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:25,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:26,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 433 [2024-10-11 16:45:26,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 411 transitions, 919 flow. Second operand has 6 states, 6 states have (on average 356.5) internal successors, (2139), 6 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:26,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:26,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 433 [2024-10-11 16:45:26,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:30,135 INFO L124 PetriNetUnfolderBase]: 4032/25116 cut-off events. [2024-10-11 16:45:30,135 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-10-11 16:45:30,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33200 conditions, 25116 events. 4032/25116 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 292583 event pairs, 1615 based on Foata normal form. 0/22411 useless extension candidates. Maximal degree in co-relation 32442. Up to 5670 conditions per place. [2024-10-11 16:45:30,377 INFO L140 encePairwiseOnDemand]: 400/433 looper letters, 83 selfloop transitions, 66 changer transitions 0/490 dead transitions. [2024-10-11 16:45:30,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 490 transitions, 1383 flow [2024-10-11 16:45:30,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:30,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:30,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2270 transitions. [2024-10-11 16:45:30,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8737490377213241 [2024-10-11 16:45:30,384 INFO L175 Difference]: Start difference. First operand has 417 places, 411 transitions, 919 flow. Second operand 6 states and 2270 transitions. [2024-10-11 16:45:30,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 490 transitions, 1383 flow [2024-10-11 16:45:30,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 490 transitions, 1356 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-10-11 16:45:30,397 INFO L231 Difference]: Finished difference. Result has 417 places, 475 transitions, 1346 flow [2024-10-11 16:45:30,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1346, PETRI_PLACES=417, PETRI_TRANSITIONS=475} [2024-10-11 16:45:30,399 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -1 predicate places. [2024-10-11 16:45:30,400 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 475 transitions, 1346 flow [2024-10-11 16:45:30,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 356.5) internal successors, (2139), 6 states have internal predecessors, (2139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:30,401 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:30,401 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] [2024-10-11 16:45:30,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 16:45:30,401 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:30,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:30,402 INFO L85 PathProgramCache]: Analyzing trace with hash -655660397, now seen corresponding path program 1 times [2024-10-11 16:45:30,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:30,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789037097] [2024-10-11 16:45:30,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:30,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:30,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:30,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:30,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789037097] [2024-10-11 16:45:30,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789037097] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:30,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:30,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:30,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458812380] [2024-10-11 16:45:30,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:30,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:30,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:30,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:30,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:30,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 433 [2024-10-11 16:45:30,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 475 transitions, 1346 flow. Second operand has 3 states, 3 states have (on average 413.0) internal successors, (1239), 3 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:30,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:30,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 433 [2024-10-11 16:45:30,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:31,040 INFO L124 PetriNetUnfolderBase]: 85/2798 cut-off events. [2024-10-11 16:45:31,041 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-10-11 16:45:31,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3371 conditions, 2798 events. 85/2798 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 17266 event pairs, 17 based on Foata normal form. 4/2539 useless extension candidates. Maximal degree in co-relation 2929. Up to 169 conditions per place. [2024-10-11 16:45:31,052 INFO L140 encePairwiseOnDemand]: 429/433 looper letters, 14 selfloop transitions, 3 changer transitions 0/408 dead transitions. [2024-10-11 16:45:31,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 408 transitions, 995 flow [2024-10-11 16:45:31,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:31,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:31,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1251 transitions. [2024-10-11 16:45:31,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9630484988452656 [2024-10-11 16:45:31,055 INFO L175 Difference]: Start difference. First operand has 417 places, 475 transitions, 1346 flow. Second operand 3 states and 1251 transitions. [2024-10-11 16:45:31,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 408 transitions, 995 flow [2024-10-11 16:45:31,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 408 transitions, 903 flow, removed 22 selfloop flow, removed 12 redundant places. [2024-10-11 16:45:31,066 INFO L231 Difference]: Finished difference. Result has 404 places, 403 transitions, 867 flow [2024-10-11 16:45:31,067 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=867, PETRI_PLACES=404, PETRI_TRANSITIONS=403} [2024-10-11 16:45:31,068 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -14 predicate places. [2024-10-11 16:45:31,068 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 403 transitions, 867 flow [2024-10-11 16:45:31,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 413.0) internal successors, (1239), 3 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:31,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:31,069 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] [2024-10-11 16:45:31,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 16:45:31,069 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:31,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:31,070 INFO L85 PathProgramCache]: Analyzing trace with hash 548621147, now seen corresponding path program 1 times [2024-10-11 16:45:31,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:31,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001483777] [2024-10-11 16:45:31,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:31,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:31,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:31,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:31,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001483777] [2024-10-11 16:45:31,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001483777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:31,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:31,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:31,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042829281] [2024-10-11 16:45:31,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:31,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:31,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:31,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:31,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:31,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 433 [2024-10-11 16:45:31,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 403 transitions, 867 flow. Second operand has 6 states, 6 states have (on average 312.8333333333333) internal successors, (1877), 6 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:31,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:31,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 433 [2024-10-11 16:45:31,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:32,530 INFO L124 PetriNetUnfolderBase]: 692/3392 cut-off events. [2024-10-11 16:45:32,530 INFO L125 PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES. [2024-10-11 16:45:32,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5237 conditions, 3392 events. 692/3392 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 23997 event pairs, 604 based on Foata normal form. 0/3130 useless extension candidates. Maximal degree in co-relation 4406. Up to 1497 conditions per place. [2024-10-11 16:45:32,544 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 122 selfloop transitions, 5 changer transitions 0/414 dead transitions. [2024-10-11 16:45:32,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 414 transitions, 1151 flow [2024-10-11 16:45:32,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:32,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:32,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1970 transitions. [2024-10-11 16:45:32,549 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7582755966127791 [2024-10-11 16:45:32,549 INFO L175 Difference]: Start difference. First operand has 404 places, 403 transitions, 867 flow. Second operand 6 states and 1970 transitions. [2024-10-11 16:45:32,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 414 transitions, 1151 flow [2024-10-11 16:45:32,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 414 transitions, 1145 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:32,558 INFO L231 Difference]: Finished difference. Result has 406 places, 402 transitions, 869 flow [2024-10-11 16:45:32,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=869, PETRI_PLACES=406, PETRI_TRANSITIONS=402} [2024-10-11 16:45:32,559 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -12 predicate places. [2024-10-11 16:45:32,559 INFO L471 AbstractCegarLoop]: Abstraction has has 406 places, 402 transitions, 869 flow [2024-10-11 16:45:32,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 312.8333333333333) internal successors, (1877), 6 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:32,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:32,560 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] [2024-10-11 16:45:32,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 16:45:32,561 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:32,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:32,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1718961312, now seen corresponding path program 1 times [2024-10-11 16:45:32,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:32,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912438502] [2024-10-11 16:45:32,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:32,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:32,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:32,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:32,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912438502] [2024-10-11 16:45:32,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912438502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:32,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:32,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:32,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434639492] [2024-10-11 16:45:32,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:32,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:32,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:32,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:32,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:33,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 433 [2024-10-11 16:45:33,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 402 transitions, 869 flow. Second operand has 6 states, 6 states have (on average 374.1666666666667) internal successors, (2245), 6 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:33,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:33,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 433 [2024-10-11 16:45:33,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:34,202 INFO L124 PetriNetUnfolderBase]: 296/2747 cut-off events. [2024-10-11 16:45:34,202 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2024-10-11 16:45:34,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3565 conditions, 2747 events. 296/2747 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 16428 event pairs, 214 based on Foata normal form. 0/2518 useless extension candidates. Maximal degree in co-relation 2966. Up to 533 conditions per place. [2024-10-11 16:45:34,212 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 59 selfloop transitions, 5 changer transitions 0/413 dead transitions. [2024-10-11 16:45:34,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 413 transitions, 1027 flow [2024-10-11 16:45:34,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:34,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2285 transitions. [2024-10-11 16:45:34,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8795227097767514 [2024-10-11 16:45:34,216 INFO L175 Difference]: Start difference. First operand has 406 places, 402 transitions, 869 flow. Second operand 6 states and 2285 transitions. [2024-10-11 16:45:34,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 413 transitions, 1027 flow [2024-10-11 16:45:34,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 413 transitions, 1017 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:34,224 INFO L231 Difference]: Finished difference. Result has 405 places, 401 transitions, 867 flow [2024-10-11 16:45:34,224 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=857, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=867, PETRI_PLACES=405, PETRI_TRANSITIONS=401} [2024-10-11 16:45:34,225 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -13 predicate places. [2024-10-11 16:45:34,225 INFO L471 AbstractCegarLoop]: Abstraction has has 405 places, 401 transitions, 867 flow [2024-10-11 16:45:34,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 374.1666666666667) internal successors, (2245), 6 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:34,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:34,226 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] [2024-10-11 16:45:34,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 16:45:34,227 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:34,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:34,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1272337691, now seen corresponding path program 1 times [2024-10-11 16:45:34,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:34,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333330858] [2024-10-11 16:45:34,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:34,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:34,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:34,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:34,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333330858] [2024-10-11 16:45:34,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333330858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:34,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:34,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:34,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634020589] [2024-10-11 16:45:34,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:34,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:34,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:34,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:34,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:35,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 433 [2024-10-11 16:45:35,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 401 transitions, 867 flow. Second operand has 6 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:35,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:35,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 433 [2024-10-11 16:45:35,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:35,620 INFO L124 PetriNetUnfolderBase]: 566/3250 cut-off events. [2024-10-11 16:45:35,620 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2024-10-11 16:45:35,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4746 conditions, 3250 events. 566/3250 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22473 event pairs, 478 based on Foata normal form. 0/3004 useless extension candidates. Maximal degree in co-relation 4121. Up to 1203 conditions per place. [2024-10-11 16:45:35,631 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 101 selfloop transitions, 5 changer transitions 0/412 dead transitions. [2024-10-11 16:45:35,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 412 transitions, 1109 flow [2024-10-11 16:45:35,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:35,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:35,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2075 transitions. [2024-10-11 16:45:35,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7986913010007698 [2024-10-11 16:45:35,636 INFO L175 Difference]: Start difference. First operand has 405 places, 401 transitions, 867 flow. Second operand 6 states and 2075 transitions. [2024-10-11 16:45:35,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 412 transitions, 1109 flow [2024-10-11 16:45:35,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 412 transitions, 1099 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:35,643 INFO L231 Difference]: Finished difference. Result has 404 places, 400 transitions, 865 flow [2024-10-11 16:45:35,643 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=865, PETRI_PLACES=404, PETRI_TRANSITIONS=400} [2024-10-11 16:45:35,644 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -14 predicate places. [2024-10-11 16:45:35,644 INFO L471 AbstractCegarLoop]: Abstraction has has 404 places, 400 transitions, 865 flow [2024-10-11 16:45:35,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:35,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:35,646 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] [2024-10-11 16:45:35,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 16:45:35,646 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:35,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:35,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1583194156, now seen corresponding path program 1 times [2024-10-11 16:45:35,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:35,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849229279] [2024-10-11 16:45:35,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:35,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:36,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:36,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:36,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849229279] [2024-10-11 16:45:36,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849229279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:36,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:36,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:36,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640824162] [2024-10-11 16:45:36,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:36,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:36,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:36,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:36,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:36,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 433 [2024-10-11 16:45:36,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 400 transitions, 865 flow. Second operand has 6 states, 6 states have (on average 320.3333333333333) internal successors, (1922), 6 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:36,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:36,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 433 [2024-10-11 16:45:36,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:37,166 INFO L124 PetriNetUnfolderBase]: 656/3332 cut-off events. [2024-10-11 16:45:37,167 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-10-11 16:45:37,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5098 conditions, 3332 events. 656/3332 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 23479 event pairs, 568 based on Foata normal form. 0/3102 useless extension candidates. Maximal degree in co-relation 4325. Up to 1413 conditions per place. [2024-10-11 16:45:37,179 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 116 selfloop transitions, 5 changer transitions 0/411 dead transitions. [2024-10-11 16:45:37,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 411 transitions, 1137 flow [2024-10-11 16:45:37,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:37,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:37,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2000 transitions. [2024-10-11 16:45:37,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7698229407236336 [2024-10-11 16:45:37,183 INFO L175 Difference]: Start difference. First operand has 404 places, 400 transitions, 865 flow. Second operand 6 states and 2000 transitions. [2024-10-11 16:45:37,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 411 transitions, 1137 flow [2024-10-11 16:45:37,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 411 transitions, 1127 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:37,190 INFO L231 Difference]: Finished difference. Result has 403 places, 399 transitions, 863 flow [2024-10-11 16:45:37,191 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=853, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=863, PETRI_PLACES=403, PETRI_TRANSITIONS=399} [2024-10-11 16:45:37,192 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -15 predicate places. [2024-10-11 16:45:37,192 INFO L471 AbstractCegarLoop]: Abstraction has has 403 places, 399 transitions, 863 flow [2024-10-11 16:45:37,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 320.3333333333333) internal successors, (1922), 6 states have internal predecessors, (1922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:37,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:37,193 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] [2024-10-11 16:45:37,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 16:45:37,193 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:37,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:37,194 INFO L85 PathProgramCache]: Analyzing trace with hash -805606806, now seen corresponding path program 1 times [2024-10-11 16:45:37,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:37,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771426414] [2024-10-11 16:45:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:37,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:37,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:37,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771426414] [2024-10-11 16:45:37,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771426414] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:37,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:37,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:37,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726286610] [2024-10-11 16:45:37,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:37,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:37,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:37,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:37,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:38,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 433 [2024-10-11 16:45:38,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 399 transitions, 863 flow. Second operand has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:38,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:38,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 433 [2024-10-11 16:45:38,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:38,486 INFO L124 PetriNetUnfolderBase]: 650/3318 cut-off events. [2024-10-11 16:45:38,486 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2024-10-11 16:45:38,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5074 conditions, 3318 events. 650/3318 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 23344 event pairs, 562 based on Foata normal form. 0/3088 useless extension candidates. Maximal degree in co-relation 4311. Up to 1407 conditions per place. [2024-10-11 16:45:38,498 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 116 selfloop transitions, 5 changer transitions 0/410 dead transitions. [2024-10-11 16:45:38,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 410 transitions, 1135 flow [2024-10-11 16:45:38,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:38,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:38,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2000 transitions. [2024-10-11 16:45:38,502 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7698229407236336 [2024-10-11 16:45:38,502 INFO L175 Difference]: Start difference. First operand has 403 places, 399 transitions, 863 flow. Second operand 6 states and 2000 transitions. [2024-10-11 16:45:38,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 410 transitions, 1135 flow [2024-10-11 16:45:38,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 410 transitions, 1125 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:38,510 INFO L231 Difference]: Finished difference. Result has 402 places, 398 transitions, 861 flow [2024-10-11 16:45:38,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=851, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=861, PETRI_PLACES=402, PETRI_TRANSITIONS=398} [2024-10-11 16:45:38,511 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -16 predicate places. [2024-10-11 16:45:38,511 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 398 transitions, 861 flow [2024-10-11 16:45:38,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.1666666666667) internal successors, (1927), 6 states have internal predecessors, (1927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:38,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:38,512 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] [2024-10-11 16:45:38,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 16:45:38,512 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t1Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:38,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:38,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1799594946, now seen corresponding path program 1 times [2024-10-11 16:45:38,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:38,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466058520] [2024-10-11 16:45:38,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:38,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:39,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:39,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:39,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466058520] [2024-10-11 16:45:39,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466058520] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:39,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:39,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:39,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772773598] [2024-10-11 16:45:39,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:39,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:39,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:39,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:39,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:39,460 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 308 out of 433 [2024-10-11 16:45:39,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 398 transitions, 861 flow. Second operand has 6 states, 6 states have (on average 317.1666666666667) internal successors, (1903), 6 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:39,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:39,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 308 of 433 [2024-10-11 16:45:39,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:40,040 INFO L124 PetriNetUnfolderBase]: 671/3334 cut-off events. [2024-10-11 16:45:40,040 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-10-11 16:45:40,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5150 conditions, 3334 events. 671/3334 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 23504 event pairs, 583 based on Foata normal form. 0/3110 useless extension candidates. Maximal degree in co-relation 4942. Up to 1453 conditions per place. [2024-10-11 16:45:40,057 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 122 selfloop transitions, 5 changer transitions 0/409 dead transitions. [2024-10-11 16:45:40,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 409 transitions, 1145 flow [2024-10-11 16:45:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:40,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:40,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1975 transitions. [2024-10-11 16:45:40,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7602001539645882 [2024-10-11 16:45:40,061 INFO L175 Difference]: Start difference. First operand has 402 places, 398 transitions, 861 flow. Second operand 6 states and 1975 transitions. [2024-10-11 16:45:40,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 409 transitions, 1145 flow [2024-10-11 16:45:40,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 409 transitions, 1135 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:40,068 INFO L231 Difference]: Finished difference. Result has 401 places, 397 transitions, 859 flow [2024-10-11 16:45:40,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=859, PETRI_PLACES=401, PETRI_TRANSITIONS=397} [2024-10-11 16:45:40,069 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -17 predicate places. [2024-10-11 16:45:40,069 INFO L471 AbstractCegarLoop]: Abstraction has has 401 places, 397 transitions, 859 flow [2024-10-11 16:45:40,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 317.1666666666667) internal successors, (1903), 6 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:40,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:40,070 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] [2024-10-11 16:45:40,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 16:45:40,070 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:40,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:40,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1624299871, now seen corresponding path program 1 times [2024-10-11 16:45:40,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:40,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963429148] [2024-10-11 16:45:40,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:40,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:40,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:40,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:40,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963429148] [2024-10-11 16:45:40,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963429148] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:40,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888764254] [2024-10-11 16:45:40,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:40,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:40,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:40,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:40,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 16:45:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:40,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 16:45:40,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:40,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 16:45:40,484 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:40,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888764254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:40,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:40,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 16:45:40,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698906909] [2024-10-11 16:45:40,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:40,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:40,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:40,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:40,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:40,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 433 [2024-10-11 16:45:40,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 397 transitions, 859 flow. Second operand has 3 states, 3 states have (on average 410.3333333333333) internal successors, (1231), 3 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:40,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:40,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 433 [2024-10-11 16:45:40,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:40,703 INFO L124 PetriNetUnfolderBase]: 63/1643 cut-off events. [2024-10-11 16:45:40,703 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-11 16:45:40,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1861 conditions, 1643 events. 63/1643 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 7463 event pairs, 29 based on Foata normal form. 0/1554 useless extension candidates. Maximal degree in co-relation 1467. Up to 79 conditions per place. [2024-10-11 16:45:40,712 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 15 selfloop transitions, 2 changer transitions 0/399 dead transitions. [2024-10-11 16:45:40,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 399 transitions, 899 flow [2024-10-11 16:45:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:40,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:40,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1242 transitions. [2024-10-11 16:45:40,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9561200923787528 [2024-10-11 16:45:40,714 INFO L175 Difference]: Start difference. First operand has 401 places, 397 transitions, 859 flow. Second operand 3 states and 1242 transitions. [2024-10-11 16:45:40,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 399 transitions, 899 flow [2024-10-11 16:45:40,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 399 transitions, 889 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:40,721 INFO L231 Difference]: Finished difference. Result has 397 places, 396 transitions, 851 flow [2024-10-11 16:45:40,723 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=851, PETRI_PLACES=397, PETRI_TRANSITIONS=396} [2024-10-11 16:45:40,723 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -21 predicate places. [2024-10-11 16:45:40,724 INFO L471 AbstractCegarLoop]: Abstraction has has 397 places, 396 transitions, 851 flow [2024-10-11 16:45:40,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 410.3333333333333) internal successors, (1231), 3 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:40,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:40,725 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] [2024-10-11 16:45:40,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 16:45:40,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:40,926 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:40,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:40,926 INFO L85 PathProgramCache]: Analyzing trace with hash -939005070, now seen corresponding path program 1 times [2024-10-11 16:45:40,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:40,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181214335] [2024-10-11 16:45:40,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:40,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:41,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:41,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:41,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181214335] [2024-10-11 16:45:41,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181214335] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:41,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841829566] [2024-10-11 16:45:41,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:41,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:41,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:41,128 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:41,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 16:45:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:41,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 16:45:41,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:41,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 16:45:41,371 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:41,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841829566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:41,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:41,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 16:45:41,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028118425] [2024-10-11 16:45:41,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:41,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:41,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:41,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:41,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:41,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 433 [2024-10-11 16:45:41,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 396 transitions, 851 flow. Second operand has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:41,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:41,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 433 [2024-10-11 16:45:41,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:41,671 INFO L124 PetriNetUnfolderBase]: 135/3325 cut-off events. [2024-10-11 16:45:41,671 INFO L125 PetriNetUnfolderBase]: For 41/48 co-relation queries the response was YES. [2024-10-11 16:45:41,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3640 conditions, 3325 events. 135/3325 cut-off events. For 41/48 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 22225 event pairs, 38 based on Foata normal form. 1/3072 useless extension candidates. Maximal degree in co-relation 3260. Up to 129 conditions per place. [2024-10-11 16:45:41,683 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 17 selfloop transitions, 7 changer transitions 1/404 dead transitions. [2024-10-11 16:45:41,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 404 transitions, 925 flow [2024-10-11 16:45:41,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:41,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:41,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1247 transitions. [2024-10-11 16:45:41,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9599692070823711 [2024-10-11 16:45:41,685 INFO L175 Difference]: Start difference. First operand has 397 places, 396 transitions, 851 flow. Second operand 3 states and 1247 transitions. [2024-10-11 16:45:41,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 404 transitions, 925 flow [2024-10-11 16:45:41,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 404 transitions, 921 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:41,692 INFO L231 Difference]: Finished difference. Result has 399 places, 401 transitions, 903 flow [2024-10-11 16:45:41,692 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=399, PETRI_TRANSITIONS=401} [2024-10-11 16:45:41,695 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -19 predicate places. [2024-10-11 16:45:41,695 INFO L471 AbstractCegarLoop]: Abstraction has has 399 places, 401 transitions, 903 flow [2024-10-11 16:45:41,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:41,695 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:41,696 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] [2024-10-11 16:45:41,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 16:45:41,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:41,901 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:41,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:41,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1252146744, now seen corresponding path program 1 times [2024-10-11 16:45:41,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:41,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254995630] [2024-10-11 16:45:41,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:41,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:42,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 16:45:42,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:42,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254995630] [2024-10-11 16:45:42,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254995630] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:42,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:42,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:42,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646460321] [2024-10-11 16:45:42,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:42,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:42,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:42,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:42,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:42,062 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 433 [2024-10-11 16:45:42,063 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 401 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 416.0) internal successors, (1248), 3 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:42,063 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:42,063 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 433 [2024-10-11 16:45:42,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:42,161 INFO L124 PetriNetUnfolderBase]: 22/890 cut-off events. [2024-10-11 16:45:42,161 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-10-11 16:45:42,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 890 events. 22/890 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2210 event pairs, 0 based on Foata normal form. 2/852 useless extension candidates. Maximal degree in co-relation 677. Up to 26 conditions per place. [2024-10-11 16:45:42,164 INFO L140 encePairwiseOnDemand]: 429/433 looper letters, 7 selfloop transitions, 3 changer transitions 14/394 dead transitions. [2024-10-11 16:45:42,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 394 transitions, 880 flow [2024-10-11 16:45:42,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:42,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:42,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1255 transitions. [2024-10-11 16:45:42,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9661277906081601 [2024-10-11 16:45:42,166 INFO L175 Difference]: Start difference. First operand has 399 places, 401 transitions, 903 flow. Second operand 3 states and 1255 transitions. [2024-10-11 16:45:42,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 394 transitions, 880 flow [2024-10-11 16:45:42,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 394 transitions, 860 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-11 16:45:42,172 INFO L231 Difference]: Finished difference. Result has 395 places, 378 transitions, 807 flow [2024-10-11 16:45:42,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=807, PETRI_PLACES=395, PETRI_TRANSITIONS=378} [2024-10-11 16:45:42,174 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -23 predicate places. [2024-10-11 16:45:42,174 INFO L471 AbstractCegarLoop]: Abstraction has has 395 places, 378 transitions, 807 flow [2024-10-11 16:45:42,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.0) internal successors, (1248), 3 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:42,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:42,175 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] [2024-10-11 16:45:42,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 16:45:42,176 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:42,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:42,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1220099169, now seen corresponding path program 1 times [2024-10-11 16:45:42,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:42,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205075774] [2024-10-11 16:45:42,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:42,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:42,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:42,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205075774] [2024-10-11 16:45:42,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205075774] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:42,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059602003] [2024-10-11 16:45:42,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:42,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:42,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:42,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:42,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 16:45:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:42,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 16:45:42,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:42,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:42,714 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:42,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:42,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059602003] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:42,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:42,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-11 16:45:42,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579896008] [2024-10-11 16:45:42,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:42,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 16:45:42,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:42,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 16:45:42,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 16:45:42,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 433 [2024-10-11 16:45:42,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 378 transitions, 807 flow. Second operand has 10 states, 10 states have (on average 411.2) internal successors, (4112), 10 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:42,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:42,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 433 [2024-10-11 16:45:42,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:43,184 INFO L124 PetriNetUnfolderBase]: 41/1304 cut-off events. [2024-10-11 16:45:43,184 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-11 16:45:43,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 1304 events. 41/1304 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 3127 event pairs, 8 based on Foata normal form. 4/1241 useless extension candidates. Maximal degree in co-relation 935. Up to 28 conditions per place. [2024-10-11 16:45:43,189 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 20 selfloop transitions, 9 changer transitions 0/393 dead transitions. [2024-10-11 16:45:43,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 393 transitions, 911 flow [2024-10-11 16:45:43,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 16:45:43,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 16:45:43,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3712 transitions. [2024-10-11 16:45:43,193 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9525275853220426 [2024-10-11 16:45:43,193 INFO L175 Difference]: Start difference. First operand has 395 places, 378 transitions, 807 flow. Second operand 9 states and 3712 transitions. [2024-10-11 16:45:43,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 393 transitions, 911 flow [2024-10-11 16:45:43,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 393 transitions, 902 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-11 16:45:43,200 INFO L231 Difference]: Finished difference. Result has 392 places, 384 transitions, 848 flow [2024-10-11 16:45:43,200 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=848, PETRI_PLACES=392, PETRI_TRANSITIONS=384} [2024-10-11 16:45:43,201 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -26 predicate places. [2024-10-11 16:45:43,201 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 384 transitions, 848 flow [2024-10-11 16:45:43,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 411.2) internal successors, (4112), 10 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:43,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:43,203 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:43,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 16:45:43,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:43,404 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:43,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:43,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1909001055, now seen corresponding path program 2 times [2024-10-11 16:45:43,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:43,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523827784] [2024-10-11 16:45:43,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:43,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:43,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:43,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523827784] [2024-10-11 16:45:43,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523827784] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:43,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870090070] [2024-10-11 16:45:43,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 16:45:43,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:43,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:43,800 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:43,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 16:45:44,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 16:45:44,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 16:45:44,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 16:45:44,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:44,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 16:45:44,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-10-11 16:45:44,181 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:44,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-10-11 16:45:44,214 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:44,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-10-11 16:45:44,243 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-10-11 16:45:44,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:44,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870090070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:44,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:44,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-11 16:45:44,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861283950] [2024-10-11 16:45:44,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:44,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:44,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:44,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:44,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-11 16:45:44,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 433 [2024-10-11 16:45:44,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 384 transitions, 848 flow. Second operand has 6 states, 6 states have (on average 369.6666666666667) internal successors, (2218), 6 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:44,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:44,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 433 [2024-10-11 16:45:44,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:45,185 INFO L124 PetriNetUnfolderBase]: 125/1382 cut-off events. [2024-10-11 16:45:45,185 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-10-11 16:45:45,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1382 events. 125/1382 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4254 event pairs, 93 based on Foata normal form. 0/1320 useless extension candidates. Maximal degree in co-relation 1195. Up to 296 conditions per place. [2024-10-11 16:45:45,192 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 57 selfloop transitions, 5 changer transitions 0/387 dead transitions. [2024-10-11 16:45:45,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 387 transitions, 982 flow [2024-10-11 16:45:45,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:45,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2241 transitions. [2024-10-11 16:45:45,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8625866050808314 [2024-10-11 16:45:45,195 INFO L175 Difference]: Start difference. First operand has 392 places, 384 transitions, 848 flow. Second operand 6 states and 2241 transitions. [2024-10-11 16:45:45,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 387 transitions, 982 flow [2024-10-11 16:45:45,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 387 transitions, 976 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:45,202 INFO L231 Difference]: Finished difference. Result has 395 places, 383 transitions, 850 flow [2024-10-11 16:45:45,203 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=850, PETRI_PLACES=395, PETRI_TRANSITIONS=383} [2024-10-11 16:45:45,203 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -23 predicate places. [2024-10-11 16:45:45,204 INFO L471 AbstractCegarLoop]: Abstraction has has 395 places, 383 transitions, 850 flow [2024-10-11 16:45:45,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 369.6666666666667) internal successors, (2218), 6 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:45,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:45,205 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:45,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 16:45:45,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-11 16:45:45,406 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t2Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:45,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:45,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1520704861, now seen corresponding path program 1 times [2024-10-11 16:45:45,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:45,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416504851] [2024-10-11 16:45:45,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:45,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:45,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:45,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416504851] [2024-10-11 16:45:45,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416504851] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:45,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911060102] [2024-10-11 16:45:45,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:45,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:45,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:45,798 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:45,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 16:45:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:46,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 16:45:46,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:46,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 228 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:46,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911060102] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:46,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:46,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-11 16:45:46,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891845600] [2024-10-11 16:45:46,735 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:46,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 16:45:46,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:46,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 16:45:46,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-11 16:45:46,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 433 [2024-10-11 16:45:46,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 383 transitions, 850 flow. Second operand has 18 states, 18 states have (on average 411.1111111111111) internal successors, (7400), 18 states have internal predecessors, (7400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:46,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:46,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 433 [2024-10-11 16:45:46,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:47,281 INFO L124 PetriNetUnfolderBase]: 65/2068 cut-off events. [2024-10-11 16:45:47,281 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-10-11 16:45:47,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2403 conditions, 2068 events. 65/2068 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 4603 event pairs, 8 based on Foata normal form. 8/2005 useless extension candidates. Maximal degree in co-relation 1834. Up to 34 conditions per place. [2024-10-11 16:45:47,289 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 36 selfloop transitions, 21 changer transitions 0/420 dead transitions. [2024-10-11 16:45:47,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 420 transitions, 1128 flow [2024-10-11 16:45:47,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-11 16:45:47,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-11 16:45:47,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8650 transitions. [2024-10-11 16:45:47,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9512812053227757 [2024-10-11 16:45:47,293 INFO L175 Difference]: Start difference. First operand has 395 places, 383 transitions, 850 flow. Second operand 21 states and 8650 transitions. [2024-10-11 16:45:47,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 420 transitions, 1128 flow [2024-10-11 16:45:47,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 420 transitions, 1118 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:47,300 INFO L231 Difference]: Finished difference. Result has 415 places, 396 transitions, 970 flow [2024-10-11 16:45:47,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=970, PETRI_PLACES=415, PETRI_TRANSITIONS=396} [2024-10-11 16:45:47,302 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -3 predicate places. [2024-10-11 16:45:47,302 INFO L471 AbstractCegarLoop]: Abstraction has has 415 places, 396 transitions, 970 flow [2024-10-11 16:45:47,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 411.1111111111111) internal successors, (7400), 18 states have internal predecessors, (7400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:47,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:47,304 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:47,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 16:45:47,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 16:45:47,505 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t2Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:47,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:47,506 INFO L85 PathProgramCache]: Analyzing trace with hash -278628539, now seen corresponding path program 2 times [2024-10-11 16:45:47,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:47,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440212984] [2024-10-11 16:45:47,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:47,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:48,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 1582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:48,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:48,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440212984] [2024-10-11 16:45:48,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440212984] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:48,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570428449] [2024-10-11 16:45:48,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 16:45:48,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:48,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:48,597 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:48,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 16:45:48,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 16:45:48,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 16:45:48,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 16:45:48,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:48,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 16:45:49,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-10-11 16:45:49,029 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:49,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-10-11 16:45:49,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:45:49,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-10-11 16:45:49,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-10-11 16:45:49,082 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:49,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570428449] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:49,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:49,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-11 16:45:49,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80430031] [2024-10-11 16:45:49,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:49,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:49,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:49,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:49,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-11 16:45:49,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 433 [2024-10-11 16:45:49,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 396 transitions, 970 flow. Second operand has 6 states, 6 states have (on average 369.6666666666667) internal successors, (2218), 6 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:49,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:49,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 433 [2024-10-11 16:45:49,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:50,162 INFO L124 PetriNetUnfolderBase]: 213/2210 cut-off events. [2024-10-11 16:45:50,162 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-10-11 16:45:50,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3276 conditions, 2210 events. 213/2210 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 6561 event pairs, 173 based on Foata normal form. 0/2144 useless extension candidates. Maximal degree in co-relation 2551. Up to 536 conditions per place. [2024-10-11 16:45:50,174 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 57 selfloop transitions, 5 changer transitions 0/399 dead transitions. [2024-10-11 16:45:50,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 399 transitions, 1104 flow [2024-10-11 16:45:50,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:50,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:50,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2241 transitions. [2024-10-11 16:45:50,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8625866050808314 [2024-10-11 16:45:50,177 INFO L175 Difference]: Start difference. First operand has 415 places, 396 transitions, 970 flow. Second operand 6 states and 2241 transitions. [2024-10-11 16:45:50,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 399 transitions, 1104 flow [2024-10-11 16:45:50,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 399 transitions, 1080 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-11 16:45:50,185 INFO L231 Difference]: Finished difference. Result has 413 places, 395 transitions, 954 flow [2024-10-11 16:45:50,185 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=954, PETRI_PLACES=413, PETRI_TRANSITIONS=395} [2024-10-11 16:45:50,186 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -5 predicate places. [2024-10-11 16:45:50,186 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 395 transitions, 954 flow [2024-10-11 16:45:50,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 369.6666666666667) internal successors, (2218), 6 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:50,187 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:50,187 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:50,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 16:45:50,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-11 16:45:50,388 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:50,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:50,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1619984550, now seen corresponding path program 1 times [2024-10-11 16:45:50,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:50,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948236611] [2024-10-11 16:45:50,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:50,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:50,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1583 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-10-11 16:45:50,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:50,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948236611] [2024-10-11 16:45:50,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948236611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:50,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:50,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 16:45:50,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915274482] [2024-10-11 16:45:50,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:50,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 16:45:50,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:50,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 16:45:50,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 16:45:50,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 433 [2024-10-11 16:45:50,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 395 transitions, 954 flow. Second operand has 4 states, 4 states have (on average 411.5) internal successors, (1646), 4 states have internal predecessors, (1646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:50,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:50,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 433 [2024-10-11 16:45:50,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:51,309 INFO L124 PetriNetUnfolderBase]: 55/2478 cut-off events. [2024-10-11 16:45:51,310 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2024-10-11 16:45:51,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2775 conditions, 2478 events. 55/2478 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 7528 event pairs, 15 based on Foata normal form. 4/2378 useless extension candidates. Maximal degree in co-relation 1876. Up to 52 conditions per place. [2024-10-11 16:45:51,323 INFO L140 encePairwiseOnDemand]: 428/433 looper letters, 14 selfloop transitions, 4 changer transitions 0/400 dead transitions. [2024-10-11 16:45:51,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 400 transitions, 1002 flow [2024-10-11 16:45:51,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 16:45:51,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 16:45:51,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1655 transitions. [2024-10-11 16:45:51,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9555427251732102 [2024-10-11 16:45:51,326 INFO L175 Difference]: Start difference. First operand has 413 places, 395 transitions, 954 flow. Second operand 4 states and 1655 transitions. [2024-10-11 16:45:51,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 400 transitions, 1002 flow [2024-10-11 16:45:51,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 400 transitions, 992 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:51,334 INFO L231 Difference]: Finished difference. Result has 413 places, 398 transitions, 972 flow [2024-10-11 16:45:51,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=972, PETRI_PLACES=413, PETRI_TRANSITIONS=398} [2024-10-11 16:45:51,335 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -5 predicate places. [2024-10-11 16:45:51,335 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 398 transitions, 972 flow [2024-10-11 16:45:51,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 411.5) internal successors, (1646), 4 states have internal predecessors, (1646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:51,336 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:51,336 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:51,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-11 16:45:51,336 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:51,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:51,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1068255428, now seen corresponding path program 1 times [2024-10-11 16:45:51,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:51,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633491013] [2024-10-11 16:45:51,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:51,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:51,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1583 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-10-11 16:45:51,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:51,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633491013] [2024-10-11 16:45:51,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633491013] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:51,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996921259] [2024-10-11 16:45:51,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:51,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:51,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:51,796 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:51,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 16:45:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:52,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 2139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 16:45:52,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:52,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1583 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1583 trivial. 0 not checked. [2024-10-11 16:45:52,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:45:52,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996921259] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:52,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:45:52,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 16:45:52,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061657143] [2024-10-11 16:45:52,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:52,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:52,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:52,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:52,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:52,417 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 433 [2024-10-11 16:45:52,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 398 transitions, 972 flow. Second operand has 3 states, 3 states have (on average 411.6666666666667) internal successors, (1235), 3 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:52,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:52,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 433 [2024-10-11 16:45:52,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:52,850 INFO L124 PetriNetUnfolderBase]: 47/2466 cut-off events. [2024-10-11 16:45:52,850 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-10-11 16:45:52,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2759 conditions, 2466 events. 47/2466 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 7377 event pairs, 9 based on Foata normal form. 0/2366 useless extension candidates. Maximal degree in co-relation 2263. Up to 34 conditions per place. [2024-10-11 16:45:52,859 INFO L140 encePairwiseOnDemand]: 430/433 looper letters, 12 selfloop transitions, 2 changer transitions 0/398 dead transitions. [2024-10-11 16:45:52,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 398 transitions, 1001 flow [2024-10-11 16:45:52,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:52,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1239 transitions. [2024-10-11 16:45:52,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.953810623556582 [2024-10-11 16:45:52,861 INFO L175 Difference]: Start difference. First operand has 413 places, 398 transitions, 972 flow. Second operand 3 states and 1239 transitions. [2024-10-11 16:45:52,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 398 transitions, 1001 flow [2024-10-11 16:45:52,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 398 transitions, 999 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:52,868 INFO L231 Difference]: Finished difference. Result has 413 places, 397 transitions, 972 flow [2024-10-11 16:45:52,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=968, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=972, PETRI_PLACES=413, PETRI_TRANSITIONS=397} [2024-10-11 16:45:52,869 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, -5 predicate places. [2024-10-11 16:45:52,869 INFO L471 AbstractCegarLoop]: Abstraction has has 413 places, 397 transitions, 972 flow [2024-10-11 16:45:52,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.6666666666667) internal successors, (1235), 3 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:52,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:52,870 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:52,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-11 16:45:53,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-11 16:45:53,071 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:53,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:53,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1946786064, now seen corresponding path program 1 times [2024-10-11 16:45:53,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:53,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425251651] [2024-10-11 16:45:53,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:53,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:54,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 1582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:54,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:54,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425251651] [2024-10-11 16:45:54,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425251651] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:54,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344827979] [2024-10-11 16:45:54,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:54,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:54,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:54,134 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:54,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 16:45:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:54,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 2153 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 16:45:54,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:55,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 1582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:55,295 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1582 backedges. 0 proven. 1582 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:55,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344827979] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:55,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:55,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-11 16:45:55,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811605588] [2024-10-11 16:45:55,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:55,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-11 16:45:55,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:55,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-11 16:45:55,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 16:45:56,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 433 [2024-10-11 16:45:56,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 397 transitions, 972 flow. Second operand has 34 states, 34 states have (on average 411.05882352941177) internal successors, (13976), 34 states have internal predecessors, (13976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:56,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:56,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 433 [2024-10-11 16:45:56,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:57,560 INFO L124 PetriNetUnfolderBase]: 117/4026 cut-off events. [2024-10-11 16:45:57,560 INFO L125 PetriNetUnfolderBase]: For 575/575 co-relation queries the response was YES. [2024-10-11 16:45:57,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4802 conditions, 4026 events. 117/4026 cut-off events. For 575/575 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 10664 event pairs, 8 based on Foata normal form. 16/3925 useless extension candidates. Maximal degree in co-relation 4748. Up to 66 conditions per place. [2024-10-11 16:45:57,573 INFO L140 encePairwiseOnDemand]: 427/433 looper letters, 68 selfloop transitions, 45 changer transitions 0/477 dead transitions. [2024-10-11 16:45:57,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 477 transitions, 1642 flow [2024-10-11 16:45:57,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-11 16:45:57,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-10-11 16:45:57,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 18526 transitions. [2024-10-11 16:45:57,584 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.950782653323069 [2024-10-11 16:45:57,584 INFO L175 Difference]: Start difference. First operand has 413 places, 397 transitions, 972 flow. Second operand 45 states and 18526 transitions. [2024-10-11 16:45:57,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 477 transitions, 1642 flow [2024-10-11 16:45:57,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 477 transitions, 1638 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:57,595 INFO L231 Difference]: Finished difference. Result has 464 places, 422 transitions, 1270 flow [2024-10-11 16:45:57,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=968, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=1270, PETRI_PLACES=464, PETRI_TRANSITIONS=422} [2024-10-11 16:45:57,596 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, 46 predicate places. [2024-10-11 16:45:57,596 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 422 transitions, 1270 flow [2024-10-11 16:45:57,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 411.05882352941177) internal successors, (13976), 34 states have internal predecessors, (13976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:45:57,599 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:57,599 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:57,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 16:45:57,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:57,800 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:45:57,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:57,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1938185008, now seen corresponding path program 2 times [2024-10-11 16:45:57,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:57,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062206720] [2024-10-11 16:45:57,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:57,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:01,253 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:01,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:01,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062206720] [2024-10-11 16:46:01,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062206720] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:46:01,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353534617] [2024-10-11 16:46:01,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 16:46:01,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:46:01,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:46:01,255 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:46:01,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 16:46:01,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 16:46:01,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 16:46:01,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 16:46:01,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:46:01,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 16:46:02,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-10-11 16:46:02,038 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:46:02,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-10-11 16:46:02,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-11 16:46:02,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-10-11 16:46:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7890 trivial. 0 not checked. [2024-10-11 16:46:02,123 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:46:02,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353534617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:02,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:46:02,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-10-11 16:46:02,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267477010] [2024-10-11 16:46:02,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:02,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:46:02,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:02,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:46:02,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 16:46:02,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 433 [2024-10-11 16:46:02,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 422 transitions, 1270 flow. Second operand has 6 states, 6 states have (on average 359.6666666666667) internal successors, (2158), 6 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:02,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:02,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 433 [2024-10-11 16:46:02,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:04,048 INFO L124 PetriNetUnfolderBase]: 461/4344 cut-off events. [2024-10-11 16:46:04,049 INFO L125 PetriNetUnfolderBase]: For 574/574 co-relation queries the response was YES. [2024-10-11 16:46:04,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6791 conditions, 4344 events. 461/4344 cut-off events. For 574/574 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 14940 event pairs, 351 based on Foata normal form. 0/4268 useless extension candidates. Maximal degree in co-relation 5403. Up to 1078 conditions per place. [2024-10-11 16:46:04,073 INFO L140 encePairwiseOnDemand]: 424/433 looper letters, 64 selfloop transitions, 6 changer transitions 0/423 dead transitions. [2024-10-11 16:46:04,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 423 transitions, 1416 flow [2024-10-11 16:46:04,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:46:04,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:46:04,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2191 transitions. [2024-10-11 16:46:04,075 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8433410315627405 [2024-10-11 16:46:04,075 INFO L175 Difference]: Start difference. First operand has 464 places, 422 transitions, 1270 flow. Second operand 6 states and 2191 transitions. [2024-10-11 16:46:04,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 423 transitions, 1416 flow [2024-10-11 16:46:04,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 423 transitions, 1360 flow, removed 10 selfloop flow, removed 18 redundant places. [2024-10-11 16:46:04,087 INFO L231 Difference]: Finished difference. Result has 448 places, 419 transitions, 1220 flow [2024-10-11 16:46:04,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=1208, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1220, PETRI_PLACES=448, PETRI_TRANSITIONS=419} [2024-10-11 16:46:04,088 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, 30 predicate places. [2024-10-11 16:46:04,089 INFO L471 AbstractCegarLoop]: Abstraction has has 448 places, 419 transitions, 1220 flow [2024-10-11 16:46:04,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.6666666666667) internal successors, (2158), 6 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:04,089 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:04,090 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:04,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-11 16:46:04,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:46:04,290 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t2Err13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:46:04,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:04,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2012554120, now seen corresponding path program 1 times [2024-10-11 16:46:04,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:04,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123074660] [2024-10-11 16:46:04,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:04,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:05,420 INFO L134 CoverageAnalysis]: Checked inductivity of 7891 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7890 trivial. 0 not checked. [2024-10-11 16:46:05,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:05,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123074660] [2024-10-11 16:46:05,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123074660] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:46:05,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208354422] [2024-10-11 16:46:05,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:05,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:46:05,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:46:05,424 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:46:05,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 16:46:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:06,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 4075 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 16:46:06,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:46:06,534 INFO L134 CoverageAnalysis]: Checked inductivity of 7891 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7891 trivial. 0 not checked. [2024-10-11 16:46:06,535 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 16:46:06,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208354422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:06,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 16:46:06,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 16:46:06,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920914883] [2024-10-11 16:46:06,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:06,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:46:06,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:06,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:46:06,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:46:06,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 433 [2024-10-11 16:46:06,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 419 transitions, 1220 flow. Second operand has 3 states, 3 states have (on average 411.6666666666667) internal successors, (1235), 3 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:06,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:06,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 433 [2024-10-11 16:46:06,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:07,503 INFO L124 PetriNetUnfolderBase]: 59/3938 cut-off events. [2024-10-11 16:46:07,503 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2024-10-11 16:46:07,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4557 conditions, 3938 events. 59/3938 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9653 event pairs, 7 based on Foata normal form. 4/3850 useless extension candidates. Maximal degree in co-relation 3768. Up to 60 conditions per place. [2024-10-11 16:46:07,525 INFO L140 encePairwiseOnDemand]: 431/433 looper letters, 9 selfloop transitions, 0 changer transitions 3/419 dead transitions. [2024-10-11 16:46:07,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 419 transitions, 1245 flow [2024-10-11 16:46:07,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:46:07,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:46:07,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1237 transitions. [2024-10-11 16:46:07,526 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9522709776751347 [2024-10-11 16:46:07,527 INFO L175 Difference]: Start difference. First operand has 448 places, 419 transitions, 1220 flow. Second operand 3 states and 1237 transitions. [2024-10-11 16:46:07,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 419 transitions, 1245 flow [2024-10-11 16:46:07,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 419 transitions, 1233 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:46:07,537 INFO L231 Difference]: Finished difference. Result has 444 places, 416 transitions, 1202 flow [2024-10-11 16:46:07,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=433, PETRI_DIFFERENCE_MINUEND_FLOW=1206, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1202, PETRI_PLACES=444, PETRI_TRANSITIONS=416} [2024-10-11 16:46:07,538 INFO L277 CegarLoopForPetriNet]: 418 programPoint places, 26 predicate places. [2024-10-11 16:46:07,538 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 416 transitions, 1202 flow [2024-10-11 16:46:07,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 411.6666666666667) internal successors, (1235), 3 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:07,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:07,538 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:07,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 16:46:07,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-10-11 16:46:07,739 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t2Err4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-11 16:46:07,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:07,740 INFO L85 PathProgramCache]: Analyzing trace with hash -386475884, now seen corresponding path program 1 times [2024-10-11 16:46:07,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:07,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323011825] [2024-10-11 16:46:07,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:07,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:10,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:10,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323011825] [2024-10-11 16:46:10,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323011825] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:46:10,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561518831] [2024-10-11 16:46:10,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:10,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:46:10,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:46:10,960 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:46:10,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 16:46:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:12,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 4107 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-11 16:46:12,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:46:13,205 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:13,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:46:14,548 INFO L134 CoverageAnalysis]: Checked inductivity of 7890 backedges. 0 proven. 7890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:14,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561518831] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:46:14,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:46:14,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 43 [2024-10-11 16:46:14,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056204820] [2024-10-11 16:46:14,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:46:14,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-10-11 16:46:14,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:14,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-10-11 16:46:14,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2024-10-11 16:46:14,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 433 [2024-10-11 16:46:14,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 416 transitions, 1202 flow. Second operand has 43 states, 43 states have (on average 411.09302325581393) internal successors, (17677), 43 states have internal predecessors, (17677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:14,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:14,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 433 [2024-10-11 16:46:14,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand