./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.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/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:09:54,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:09:54,263 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 17:09:54,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:09:54,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:09:54,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:09:54,301 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:09:54,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:09:54,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:09:54,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:09:54,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:09:54,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:09:54,304 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:09:54,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:09:54,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 17:09:54,308 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 17:09:54,308 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:09:54,308 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 17:09:54,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:09:54,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 17:09:54,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:09:54,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 17:09:54,314 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 17:09:54,314 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:09:54,314 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:09:54,314 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 17:09:54,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 17:09:54,315 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:09:54,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:09:54,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:09:54,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:09:54,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:09:54,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:09:54,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:09:54,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 17:09:54,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:09:54,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:09:54,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:09:54,318 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:09:54,318 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:09:54,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:09:54,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2024-10-11 17:09:54,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:09:54,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:09:54,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:09:54,623 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:09:54,623 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:09:54,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-10-11 17:09:56,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:09:56,360 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:09:56,361 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-10-11 17:09:56,373 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4b069c7e0/dc8e15f2612a4fc9b41aa273757cdbc6/FLAGba0326513 [2024-10-11 17:09:56,686 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/4b069c7e0/dc8e15f2612a4fc9b41aa273757cdbc6 [2024-10-11 17:09:56,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:09:56,690 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:09:56,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:09:56,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:09:56,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:09:56,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:09:56" (1/1) ... [2024-10-11 17:09:56,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fe8552f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:56, skipping insertion in model container [2024-10-11 17:09:56,698 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:09:56" (1/1) ... [2024-10-11 17:09:56,738 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:09:57,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:09:57,129 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:09:57,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:09:57,226 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:09:57,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57 WrapperNode [2024-10-11 17:09:57,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:09:57,230 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:09:57,230 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:09:57,230 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:09:57,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57" (1/1) ... [2024-10-11 17:09:57,252 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57" (1/1) ... [2024-10-11 17:09:57,284 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 178 [2024-10-11 17:09:57,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:09:57,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:09:57,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:09:57,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:09:57,301 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57" (1/1) ... [2024-10-11 17:09:57,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57" (1/1) ... [2024-10-11 17:09:57,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57" (1/1) ... [2024-10-11 17:09:57,306 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57" (1/1) ... [2024-10-11 17:09:57,317 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57" (1/1) ... [2024-10-11 17:09:57,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57" (1/1) ... [2024-10-11 17:09:57,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57" (1/1) ... [2024-10-11 17:09:57,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57" (1/1) ... [2024-10-11 17:09:57,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:09:57,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:09:57,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:09:57,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:09:57,334 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57" (1/1) ... [2024-10-11 17:09:57,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:09:57,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:09:57,378 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 17:09:57,383 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 17:09:57,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 17:09:57,450 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-10-11 17:09:57,450 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-10-11 17:09:57,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 17:09:57,450 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 17:09:57,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 17:09:57,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 17:09:57,450 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 17:09:57,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:09:57,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:09:57,454 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 17:09:57,598 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:09:57,599 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:09:57,977 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 17:09:57,977 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:09:58,008 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:09:58,008 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-11 17:09:58,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:09:58 BoogieIcfgContainer [2024-10-11 17:09:58,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:09:58,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:09:58,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:09:58,013 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:09:58,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:09:56" (1/3) ... [2024-10-11 17:09:58,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c20890e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:09:58, skipping insertion in model container [2024-10-11 17:09:58,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:09:57" (2/3) ... [2024-10-11 17:09:58,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c20890e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:09:58, skipping insertion in model container [2024-10-11 17:09:58,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:09:58" (3/3) ... [2024-10-11 17:09:58,015 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-10-11 17:09:58,032 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:09:58,033 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-11 17:09:58,033 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 17:09:58,124 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 17:09:58,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 209 transitions, 422 flow [2024-10-11 17:09:58,243 INFO L124 PetriNetUnfolderBase]: 12/208 cut-off events. [2024-10-11 17:09:58,243 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:09:58,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 208 events. 12/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 409 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2024-10-11 17:09:58,256 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 209 transitions, 422 flow [2024-10-11 17:09:58,263 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 208 transitions, 419 flow [2024-10-11 17:09:58,271 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:09:58,278 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;@2dcaf64b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:09:58,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-10-11 17:09:58,286 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 17:09:58,286 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-10-11 17:09:58,286 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 17:09:58,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:09:58,287 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:09:58,288 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:09:58,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:09:58,293 INFO L85 PathProgramCache]: Analyzing trace with hash -70160838, now seen corresponding path program 1 times [2024-10-11 17:09:58,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:09:58,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103488489] [2024-10-11 17:09:58,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:09:58,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:09:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:09:59,143 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 17:09:59,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:09:59,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103488489] [2024-10-11 17:09:59,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103488489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:09:59,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:09:59,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:09:59,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380390041] [2024-10-11 17:09:59,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:09:59,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:09:59,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:09:59,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:09:59,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:09:59,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 209 [2024-10-11 17:09:59,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 208 transitions, 419 flow. Second operand has 6 states, 6 states have (on average 147.33333333333334) internal successors, (884), 6 states have internal predecessors, (884), 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 17:09:59,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:09:59,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 209 [2024-10-11 17:09:59,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:09:59,931 INFO L124 PetriNetUnfolderBase]: 479/2039 cut-off events. [2024-10-11 17:09:59,932 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:09:59,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2925 conditions, 2039 events. 479/2039 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 14607 event pairs, 378 based on Foata normal form. 151/1993 useless extension candidates. Maximal degree in co-relation 2866. Up to 877 conditions per place. [2024-10-11 17:09:59,956 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 47 selfloop transitions, 5 changer transitions 0/193 dead transitions. [2024-10-11 17:09:59,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 193 transitions, 493 flow [2024-10-11 17:09:59,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:09:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:09:59,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 937 transitions. [2024-10-11 17:09:59,981 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7472089314194578 [2024-10-11 17:09:59,983 INFO L175 Difference]: Start difference. First operand has 200 places, 208 transitions, 419 flow. Second operand 6 states and 937 transitions. [2024-10-11 17:09:59,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 193 transitions, 493 flow [2024-10-11 17:09:59,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 193 transitions, 492 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 17:09:59,995 INFO L231 Difference]: Finished difference. Result has 196 places, 193 transitions, 398 flow [2024-10-11 17:09:59,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=398, PETRI_PLACES=196, PETRI_TRANSITIONS=193} [2024-10-11 17:10:00,001 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, -4 predicate places. [2024-10-11 17:10:00,001 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 193 transitions, 398 flow [2024-10-11 17:10:00,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.33333333333334) internal successors, (884), 6 states have internal predecessors, (884), 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 17:10:00,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:00,002 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:10:00,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:10:00,004 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:00,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:00,005 INFO L85 PathProgramCache]: Analyzing trace with hash 736634007, now seen corresponding path program 1 times [2024-10-11 17:10:00,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:00,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609509234] [2024-10-11 17:10:00,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:00,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:00,451 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 17:10:00,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:00,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609509234] [2024-10-11 17:10:00,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609509234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:00,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:00,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:10:00,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84314589] [2024-10-11 17:10:00,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:00,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:10:00,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:00,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:10:00,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:10:00,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 209 [2024-10-11 17:10:00,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 193 transitions, 398 flow. Second operand has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 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 17:10:00,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:00,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 209 [2024-10-11 17:10:00,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:01,346 INFO L124 PetriNetUnfolderBase]: 592/2764 cut-off events. [2024-10-11 17:10:01,347 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 17:10:01,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3879 conditions, 2764 events. 592/2764 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 21828 event pairs, 70 based on Foata normal form. 0/2532 useless extension candidates. Maximal degree in co-relation 3835. Up to 653 conditions per place. [2024-10-11 17:10:01,363 INFO L140 encePairwiseOnDemand]: 173/209 looper letters, 76 selfloop transitions, 43 changer transitions 0/260 dead transitions. [2024-10-11 17:10:01,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 260 transitions, 770 flow [2024-10-11 17:10:01,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:10:01,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:10:01,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1006 transitions. [2024-10-11 17:10:01,367 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8022328548644339 [2024-10-11 17:10:01,367 INFO L175 Difference]: Start difference. First operand has 196 places, 193 transitions, 398 flow. Second operand 6 states and 1006 transitions. [2024-10-11 17:10:01,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 260 transitions, 770 flow [2024-10-11 17:10:01,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 260 transitions, 760 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 17:10:01,376 INFO L231 Difference]: Finished difference. Result has 201 places, 236 transitions, 718 flow [2024-10-11 17:10:01,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=718, PETRI_PLACES=201, PETRI_TRANSITIONS=236} [2024-10-11 17:10:01,381 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 1 predicate places. [2024-10-11 17:10:01,381 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 236 transitions, 718 flow [2024-10-11 17:10:01,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 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 17:10:01,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:01,383 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:10:01,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:10:01,384 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:01,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:01,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1489049592, now seen corresponding path program 1 times [2024-10-11 17:10:01,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:01,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357548907] [2024-10-11 17:10:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:01,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:01,715 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 17:10:01,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:01,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357548907] [2024-10-11 17:10:01,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357548907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:01,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:01,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:10:01,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643234742] [2024-10-11 17:10:01,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:01,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:10:01,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:01,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:10:01,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:10:02,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 209 [2024-10-11 17:10:02,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 236 transitions, 718 flow. Second operand has 6 states, 6 states have (on average 167.16666666666666) internal successors, (1003), 6 states have internal predecessors, (1003), 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 17:10:02,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:02,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 209 [2024-10-11 17:10:02,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:02,633 INFO L124 PetriNetUnfolderBase]: 620/3630 cut-off events. [2024-10-11 17:10:02,634 INFO L125 PetriNetUnfolderBase]: For 676/756 co-relation queries the response was YES. [2024-10-11 17:10:02,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6107 conditions, 3630 events. 620/3630 cut-off events. For 676/756 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 29776 event pairs, 75 based on Foata normal form. 12/3432 useless extension candidates. Maximal degree in co-relation 6050. Up to 758 conditions per place. [2024-10-11 17:10:02,655 INFO L140 encePairwiseOnDemand]: 191/209 looper letters, 66 selfloop transitions, 36 changer transitions 0/287 dead transitions. [2024-10-11 17:10:02,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 287 transitions, 1066 flow [2024-10-11 17:10:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:10:02,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:10:02,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1069 transitions. [2024-10-11 17:10:02,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8524720893141946 [2024-10-11 17:10:02,658 INFO L175 Difference]: Start difference. First operand has 201 places, 236 transitions, 718 flow. Second operand 6 states and 1069 transitions. [2024-10-11 17:10:02,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 287 transitions, 1066 flow [2024-10-11 17:10:02,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 287 transitions, 1066 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:10:02,669 INFO L231 Difference]: Finished difference. Result has 211 places, 271 transitions, 1018 flow [2024-10-11 17:10:02,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1018, PETRI_PLACES=211, PETRI_TRANSITIONS=271} [2024-10-11 17:10:02,670 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 11 predicate places. [2024-10-11 17:10:02,670 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 271 transitions, 1018 flow [2024-10-11 17:10:02,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.16666666666666) internal successors, (1003), 6 states have internal predecessors, (1003), 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 17:10:02,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:02,671 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:10:02,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:10:02,672 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:02,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:02,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1342110901, now seen corresponding path program 1 times [2024-10-11 17:10:02,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:02,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336408374] [2024-10-11 17:10:02,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:02,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:03,083 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 17:10:03,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:03,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336408374] [2024-10-11 17:10:03,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336408374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:03,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:03,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:10:03,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460303286] [2024-10-11 17:10:03,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:03,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:10:03,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:03,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:10:03,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:10:03,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 209 [2024-10-11 17:10:03,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 271 transitions, 1018 flow. Second operand has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 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 17:10:03,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:03,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 209 [2024-10-11 17:10:03,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:04,778 INFO L124 PetriNetUnfolderBase]: 2543/8449 cut-off events. [2024-10-11 17:10:04,779 INFO L125 PetriNetUnfolderBase]: For 4965/5276 co-relation queries the response was YES. [2024-10-11 17:10:04,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19213 conditions, 8449 events. 2543/8449 cut-off events. For 4965/5276 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 71927 event pairs, 840 based on Foata normal form. 117/8103 useless extension candidates. Maximal degree in co-relation 19151. Up to 4332 conditions per place. [2024-10-11 17:10:04,843 INFO L140 encePairwiseOnDemand]: 178/209 looper letters, 129 selfloop transitions, 153 changer transitions 0/427 dead transitions. [2024-10-11 17:10:04,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 427 transitions, 2278 flow [2024-10-11 17:10:04,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:10:04,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:10:04,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1039 transitions. [2024-10-11 17:10:04,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.828548644338118 [2024-10-11 17:10:04,847 INFO L175 Difference]: Start difference. First operand has 211 places, 271 transitions, 1018 flow. Second operand 6 states and 1039 transitions. [2024-10-11 17:10:04,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 427 transitions, 2278 flow [2024-10-11 17:10:04,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 427 transitions, 2278 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 17:10:04,876 INFO L231 Difference]: Finished difference. Result has 221 places, 414 transitions, 2408 flow [2024-10-11 17:10:04,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=1018, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2408, PETRI_PLACES=221, PETRI_TRANSITIONS=414} [2024-10-11 17:10:04,877 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 21 predicate places. [2024-10-11 17:10:04,877 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 414 transitions, 2408 flow [2024-10-11 17:10:04,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 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 17:10:04,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:04,878 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] [2024-10-11 17:10:04,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:10:04,879 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:04,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:04,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1913560309, now seen corresponding path program 1 times [2024-10-11 17:10:04,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:04,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218700044] [2024-10-11 17:10:04,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:04,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:05,680 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 17:10:05,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:05,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218700044] [2024-10-11 17:10:05,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218700044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:05,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:05,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:05,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810539313] [2024-10-11 17:10:05,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:05,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:05,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:05,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:05,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:06,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:06,446 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 414 transitions, 2408 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:06,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:06,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:06,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:07,520 INFO L124 PetriNetUnfolderBase]: 1532/6775 cut-off events. [2024-10-11 17:10:07,520 INFO L125 PetriNetUnfolderBase]: For 6212/7269 co-relation queries the response was YES. [2024-10-11 17:10:07,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15961 conditions, 6775 events. 1532/6775 cut-off events. For 6212/7269 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 62153 event pairs, 63 based on Foata normal form. 59/6504 useless extension candidates. Maximal degree in co-relation 15896. Up to 1360 conditions per place. [2024-10-11 17:10:07,570 INFO L140 encePairwiseOnDemand]: 197/209 looper letters, 40 selfloop transitions, 16 changer transitions 0/449 dead transitions. [2024-10-11 17:10:07,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 449 transitions, 2632 flow [2024-10-11 17:10:07,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:07,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1496 transitions. [2024-10-11 17:10:07,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8947368421052632 [2024-10-11 17:10:07,575 INFO L175 Difference]: Start difference. First operand has 221 places, 414 transitions, 2408 flow. Second operand 8 states and 1496 transitions. [2024-10-11 17:10:07,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 449 transitions, 2632 flow [2024-10-11 17:10:07,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 449 transitions, 2494 flow, removed 69 selfloop flow, removed 0 redundant places. [2024-10-11 17:10:07,632 INFO L231 Difference]: Finished difference. Result has 231 places, 423 transitions, 2350 flow [2024-10-11 17:10:07,633 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2276, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2350, PETRI_PLACES=231, PETRI_TRANSITIONS=423} [2024-10-11 17:10:07,634 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 31 predicate places. [2024-10-11 17:10:07,636 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 423 transitions, 2350 flow [2024-10-11 17:10:07,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:07,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:07,637 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] [2024-10-11 17:10:07,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:10:07,638 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:07,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:07,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1524466853, now seen corresponding path program 2 times [2024-10-11 17:10:07,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:07,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94764932] [2024-10-11 17:10:07,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:07,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:08,196 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 17:10:08,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:08,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94764932] [2024-10-11 17:10:08,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94764932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:08,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:08,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:08,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318209148] [2024-10-11 17:10:08,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:08,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:08,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:08,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:08,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:08,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:08,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 423 transitions, 2350 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:08,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:08,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:08,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:10,222 INFO L124 PetriNetUnfolderBase]: 2147/8829 cut-off events. [2024-10-11 17:10:10,223 INFO L125 PetriNetUnfolderBase]: For 8322/9709 co-relation queries the response was YES. [2024-10-11 17:10:10,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21908 conditions, 8829 events. 2147/8829 cut-off events. For 8322/9709 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 83350 event pairs, 74 based on Foata normal form. 105/8518 useless extension candidates. Maximal degree in co-relation 21838. Up to 1752 conditions per place. [2024-10-11 17:10:10,381 INFO L140 encePairwiseOnDemand]: 197/209 looper letters, 49 selfloop transitions, 20 changer transitions 0/462 dead transitions. [2024-10-11 17:10:10,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 462 transitions, 2664 flow [2024-10-11 17:10:10,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:10,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:10,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1496 transitions. [2024-10-11 17:10:10,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8947368421052632 [2024-10-11 17:10:10,385 INFO L175 Difference]: Start difference. First operand has 231 places, 423 transitions, 2350 flow. Second operand 8 states and 1496 transitions. [2024-10-11 17:10:10,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 462 transitions, 2664 flow [2024-10-11 17:10:10,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 462 transitions, 2633 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 17:10:10,432 INFO L231 Difference]: Finished difference. Result has 238 places, 433 transitions, 2452 flow [2024-10-11 17:10:10,432 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2341, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2452, PETRI_PLACES=238, PETRI_TRANSITIONS=433} [2024-10-11 17:10:10,433 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 38 predicate places. [2024-10-11 17:10:10,433 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 433 transitions, 2452 flow [2024-10-11 17:10:10,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:10,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:10,435 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] [2024-10-11 17:10:10,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:10:10,435 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:10,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:10,436 INFO L85 PathProgramCache]: Analyzing trace with hash 2064841145, now seen corresponding path program 3 times [2024-10-11 17:10:10,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:10,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363983233] [2024-10-11 17:10:10,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:10,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:10,907 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 17:10:10,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:10,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363983233] [2024-10-11 17:10:10,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363983233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:10,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:10,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:10,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154641203] [2024-10-11 17:10:10,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:10,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:10,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:10,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:10,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:11,588 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:11,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 433 transitions, 2452 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:11,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:11,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:11,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:13,242 INFO L124 PetriNetUnfolderBase]: 2870/11873 cut-off events. [2024-10-11 17:10:13,242 INFO L125 PetriNetUnfolderBase]: For 13201/15033 co-relation queries the response was YES. [2024-10-11 17:10:13,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30692 conditions, 11873 events. 2870/11873 cut-off events. For 13201/15033 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 120262 event pairs, 112 based on Foata normal form. 184/11515 useless extension candidates. Maximal degree in co-relation 30619. Up to 2506 conditions per place. [2024-10-11 17:10:13,309 INFO L140 encePairwiseOnDemand]: 196/209 looper letters, 65 selfloop transitions, 23 changer transitions 0/481 dead transitions. [2024-10-11 17:10:13,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 481 transitions, 2934 flow [2024-10-11 17:10:13,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:13,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:13,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1501 transitions. [2024-10-11 17:10:13,313 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8977272727272727 [2024-10-11 17:10:13,313 INFO L175 Difference]: Start difference. First operand has 238 places, 433 transitions, 2452 flow. Second operand 8 states and 1501 transitions. [2024-10-11 17:10:13,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 481 transitions, 2934 flow [2024-10-11 17:10:13,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 481 transitions, 2889 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-11 17:10:13,378 INFO L231 Difference]: Finished difference. Result has 246 places, 447 transitions, 2619 flow [2024-10-11 17:10:13,379 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2435, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2619, PETRI_PLACES=246, PETRI_TRANSITIONS=447} [2024-10-11 17:10:13,379 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 46 predicate places. [2024-10-11 17:10:13,379 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 447 transitions, 2619 flow [2024-10-11 17:10:13,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:13,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:13,381 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] [2024-10-11 17:10:13,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:10:13,381 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:13,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:13,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1841241191, now seen corresponding path program 4 times [2024-10-11 17:10:13,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:13,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391423200] [2024-10-11 17:10:13,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:13,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:14,025 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 17:10:14,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:14,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391423200] [2024-10-11 17:10:14,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391423200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:14,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:14,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:14,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076732972] [2024-10-11 17:10:14,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:14,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:14,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:14,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:14,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:14,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:14,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 447 transitions, 2619 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:14,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:14,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:14,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:16,418 INFO L124 PetriNetUnfolderBase]: 3565/14527 cut-off events. [2024-10-11 17:10:16,419 INFO L125 PetriNetUnfolderBase]: For 19022/21252 co-relation queries the response was YES. [2024-10-11 17:10:16,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38446 conditions, 14527 events. 3565/14527 cut-off events. For 19022/21252 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 153782 event pairs, 128 based on Foata normal form. 228/14121 useless extension candidates. Maximal degree in co-relation 38369. Up to 3015 conditions per place. [2024-10-11 17:10:16,723 INFO L140 encePairwiseOnDemand]: 196/209 looper letters, 80 selfloop transitions, 27 changer transitions 0/500 dead transitions. [2024-10-11 17:10:16,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 500 transitions, 3230 flow [2024-10-11 17:10:16,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:16,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1502 transitions. [2024-10-11 17:10:16,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8983253588516746 [2024-10-11 17:10:16,727 INFO L175 Difference]: Start difference. First operand has 246 places, 447 transitions, 2619 flow. Second operand 8 states and 1502 transitions. [2024-10-11 17:10:16,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 500 transitions, 3230 flow [2024-10-11 17:10:16,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 500 transitions, 3180 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-10-11 17:10:16,813 INFO L231 Difference]: Finished difference. Result has 254 places, 460 transitions, 2791 flow [2024-10-11 17:10:16,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2597, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2791, PETRI_PLACES=254, PETRI_TRANSITIONS=460} [2024-10-11 17:10:16,814 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 54 predicate places. [2024-10-11 17:10:16,815 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 460 transitions, 2791 flow [2024-10-11 17:10:16,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:16,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:16,816 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] [2024-10-11 17:10:16,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:10:16,816 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:16,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:16,817 INFO L85 PathProgramCache]: Analyzing trace with hash 618469067, now seen corresponding path program 5 times [2024-10-11 17:10:16,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:16,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86586636] [2024-10-11 17:10:16,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:16,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:17,253 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 17:10:17,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:17,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86586636] [2024-10-11 17:10:17,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86586636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:17,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:17,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:17,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186690465] [2024-10-11 17:10:17,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:17,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:17,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:17,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:17,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:17,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:17,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 460 transitions, 2791 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:17,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:17,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:17,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:20,379 INFO L124 PetriNetUnfolderBase]: 4324/17689 cut-off events. [2024-10-11 17:10:20,379 INFO L125 PetriNetUnfolderBase]: For 28409/31095 co-relation queries the response was YES. [2024-10-11 17:10:20,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48631 conditions, 17689 events. 4324/17689 cut-off events. For 28409/31095 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 197258 event pairs, 176 based on Foata normal form. 257/17182 useless extension candidates. Maximal degree in co-relation 48550. Up to 3697 conditions per place. [2024-10-11 17:10:20,584 INFO L140 encePairwiseOnDemand]: 196/209 looper letters, 91 selfloop transitions, 28 changer transitions 0/512 dead transitions. [2024-10-11 17:10:20,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 512 transitions, 3466 flow [2024-10-11 17:10:20,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:20,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1507 transitions. [2024-10-11 17:10:20,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9013157894736842 [2024-10-11 17:10:20,589 INFO L175 Difference]: Start difference. First operand has 254 places, 460 transitions, 2791 flow. Second operand 8 states and 1507 transitions. [2024-10-11 17:10:20,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 512 transitions, 3466 flow [2024-10-11 17:10:20,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 512 transitions, 3403 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-10-11 17:10:20,709 INFO L231 Difference]: Finished difference. Result has 263 places, 478 transitions, 3038 flow [2024-10-11 17:10:20,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2754, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3038, PETRI_PLACES=263, PETRI_TRANSITIONS=478} [2024-10-11 17:10:20,710 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 63 predicate places. [2024-10-11 17:10:20,710 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 478 transitions, 3038 flow [2024-10-11 17:10:20,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:20,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:20,711 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] [2024-10-11 17:10:20,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:10:20,712 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:20,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:20,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1741101501, now seen corresponding path program 6 times [2024-10-11 17:10:20,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:20,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452967791] [2024-10-11 17:10:20,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:20,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:21,063 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 17:10:21,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:21,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452967791] [2024-10-11 17:10:21,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452967791] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:21,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:21,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:21,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987626185] [2024-10-11 17:10:21,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:21,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:21,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:21,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:21,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:21,677 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:21,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 478 transitions, 3038 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:21,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:21,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:21,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:24,340 INFO L124 PetriNetUnfolderBase]: 4321/17877 cut-off events. [2024-10-11 17:10:24,340 INFO L125 PetriNetUnfolderBase]: For 32060/34809 co-relation queries the response was YES. [2024-10-11 17:10:24,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49207 conditions, 17877 events. 4321/17877 cut-off events. For 32060/34809 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 200195 event pairs, 177 based on Foata normal form. 360/17460 useless extension candidates. Maximal degree in co-relation 49121. Up to 3797 conditions per place. [2024-10-11 17:10:24,480 INFO L140 encePairwiseOnDemand]: 196/209 looper letters, 96 selfloop transitions, 38 changer transitions 0/527 dead transitions. [2024-10-11 17:10:24,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 527 transitions, 3728 flow [2024-10-11 17:10:24,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:24,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:24,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1504 transitions. [2024-10-11 17:10:24,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8995215311004785 [2024-10-11 17:10:24,486 INFO L175 Difference]: Start difference. First operand has 263 places, 478 transitions, 3038 flow. Second operand 8 states and 1504 transitions. [2024-10-11 17:10:24,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 527 transitions, 3728 flow [2024-10-11 17:10:24,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 527 transitions, 3679 flow, removed 24 selfloop flow, removed 1 redundant places. [2024-10-11 17:10:24,633 INFO L231 Difference]: Finished difference. Result has 274 places, 491 transitions, 3279 flow [2024-10-11 17:10:24,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2989, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3279, PETRI_PLACES=274, PETRI_TRANSITIONS=491} [2024-10-11 17:10:24,636 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 74 predicate places. [2024-10-11 17:10:24,636 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 491 transitions, 3279 flow [2024-10-11 17:10:24,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:24,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:24,637 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] [2024-10-11 17:10:24,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 17:10:24,637 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:24,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:24,639 INFO L85 PathProgramCache]: Analyzing trace with hash -824567777, now seen corresponding path program 7 times [2024-10-11 17:10:24,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:24,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868317737] [2024-10-11 17:10:24,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:24,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:25,123 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 17:10:25,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:25,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868317737] [2024-10-11 17:10:25,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868317737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:25,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:25,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:25,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932419999] [2024-10-11 17:10:25,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:25,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:25,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:25,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:25,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:25,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:25,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 491 transitions, 3279 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:25,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:25,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:25,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:28,341 INFO L124 PetriNetUnfolderBase]: 4322/17811 cut-off events. [2024-10-11 17:10:28,342 INFO L125 PetriNetUnfolderBase]: For 36996/39616 co-relation queries the response was YES. [2024-10-11 17:10:28,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50209 conditions, 17811 events. 4322/17811 cut-off events. For 36996/39616 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 198851 event pairs, 176 based on Foata normal form. 324/17371 useless extension candidates. Maximal degree in co-relation 50117. Up to 3722 conditions per place. [2024-10-11 17:10:28,475 INFO L140 encePairwiseOnDemand]: 196/209 looper letters, 103 selfloop transitions, 39 changer transitions 0/535 dead transitions. [2024-10-11 17:10:28,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 535 transitions, 3938 flow [2024-10-11 17:10:28,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:28,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:28,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1503 transitions. [2024-10-11 17:10:28,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8989234449760766 [2024-10-11 17:10:28,480 INFO L175 Difference]: Start difference. First operand has 274 places, 491 transitions, 3279 flow. Second operand 8 states and 1503 transitions. [2024-10-11 17:10:28,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 535 transitions, 3938 flow [2024-10-11 17:10:28,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 535 transitions, 3869 flow, removed 34 selfloop flow, removed 1 redundant places. [2024-10-11 17:10:28,639 INFO L231 Difference]: Finished difference. Result has 284 places, 501 transitions, 3451 flow [2024-10-11 17:10:28,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3210, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3451, PETRI_PLACES=284, PETRI_TRANSITIONS=501} [2024-10-11 17:10:28,640 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 84 predicate places. [2024-10-11 17:10:28,640 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 501 transitions, 3451 flow [2024-10-11 17:10:28,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:28,642 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:28,642 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] [2024-10-11 17:10:28,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 17:10:28,642 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:28,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:28,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1959137705, now seen corresponding path program 8 times [2024-10-11 17:10:28,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:28,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511378578] [2024-10-11 17:10:28,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:28,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:29,080 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 17:10:29,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:29,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511378578] [2024-10-11 17:10:29,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511378578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:29,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:29,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:29,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531262759] [2024-10-11 17:10:29,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:29,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:29,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:29,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:29,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:29,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:29,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 501 transitions, 3451 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:29,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:29,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:29,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:32,440 INFO L124 PetriNetUnfolderBase]: 4367/18224 cut-off events. [2024-10-11 17:10:32,440 INFO L125 PetriNetUnfolderBase]: For 44113/46864 co-relation queries the response was YES. [2024-10-11 17:10:32,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52548 conditions, 18224 events. 4367/18224 cut-off events. For 44113/46864 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 204931 event pairs, 173 based on Foata normal form. 249/17686 useless extension candidates. Maximal degree in co-relation 52451. Up to 3797 conditions per place. [2024-10-11 17:10:32,596 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 105 selfloop transitions, 41 changer transitions 0/539 dead transitions. [2024-10-11 17:10:32,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 539 transitions, 4150 flow [2024-10-11 17:10:32,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:32,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:32,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1509 transitions. [2024-10-11 17:10:32,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.902511961722488 [2024-10-11 17:10:32,601 INFO L175 Difference]: Start difference. First operand has 284 places, 501 transitions, 3451 flow. Second operand 8 states and 1509 transitions. [2024-10-11 17:10:32,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 539 transitions, 4150 flow [2024-10-11 17:10:32,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 539 transitions, 4073 flow, removed 24 selfloop flow, removed 3 redundant places. [2024-10-11 17:10:32,763 INFO L231 Difference]: Finished difference. Result has 291 places, 517 transitions, 3742 flow [2024-10-11 17:10:32,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3396, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=501, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3742, PETRI_PLACES=291, PETRI_TRANSITIONS=517} [2024-10-11 17:10:32,764 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 91 predicate places. [2024-10-11 17:10:32,764 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 517 transitions, 3742 flow [2024-10-11 17:10:32,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:32,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:32,765 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] [2024-10-11 17:10:32,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 17:10:32,766 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:32,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:32,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1081149943, now seen corresponding path program 9 times [2024-10-11 17:10:32,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:32,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277180896] [2024-10-11 17:10:32,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:32,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:33,252 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 17:10:33,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:33,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277180896] [2024-10-11 17:10:33,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277180896] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:33,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:33,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:33,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47242293] [2024-10-11 17:10:33,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:33,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:33,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:33,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:33,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:33,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:33,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 517 transitions, 3742 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:33,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:33,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:33,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:36,322 INFO L124 PetriNetUnfolderBase]: 3696/15904 cut-off events. [2024-10-11 17:10:36,322 INFO L125 PetriNetUnfolderBase]: For 40462/42817 co-relation queries the response was YES. [2024-10-11 17:10:36,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45799 conditions, 15904 events. 3696/15904 cut-off events. For 40462/42817 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 173182 event pairs, 141 based on Foata normal form. 214/15416 useless extension candidates. Maximal degree in co-relation 45699. Up to 3293 conditions per place. [2024-10-11 17:10:36,455 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 107 selfloop transitions, 51 changer transitions 0/551 dead transitions. [2024-10-11 17:10:36,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 551 transitions, 4420 flow [2024-10-11 17:10:36,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:36,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:36,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1505 transitions. [2024-10-11 17:10:36,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9001196172248804 [2024-10-11 17:10:36,459 INFO L175 Difference]: Start difference. First operand has 291 places, 517 transitions, 3742 flow. Second operand 8 states and 1505 transitions. [2024-10-11 17:10:36,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 551 transitions, 4420 flow [2024-10-11 17:10:36,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 551 transitions, 4341 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-10-11 17:10:36,601 INFO L231 Difference]: Finished difference. Result has 297 places, 530 transitions, 4030 flow [2024-10-11 17:10:36,602 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3626, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=471, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4030, PETRI_PLACES=297, PETRI_TRANSITIONS=530} [2024-10-11 17:10:36,603 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 97 predicate places. [2024-10-11 17:10:36,603 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 530 transitions, 4030 flow [2024-10-11 17:10:36,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:36,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:36,604 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] [2024-10-11 17:10:36,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 17:10:36,604 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:36,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:36,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1378700735, now seen corresponding path program 10 times [2024-10-11 17:10:36,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:36,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122915020] [2024-10-11 17:10:36,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:36,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:37,231 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 17:10:37,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:37,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122915020] [2024-10-11 17:10:37,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122915020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:37,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:37,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:37,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419396441] [2024-10-11 17:10:37,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:37,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:37,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:37,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:37,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:37,804 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:37,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 530 transitions, 4030 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:37,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:37,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:37,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:39,899 INFO L124 PetriNetUnfolderBase]: 3098/13963 cut-off events. [2024-10-11 17:10:39,899 INFO L125 PetriNetUnfolderBase]: For 39408/41721 co-relation queries the response was YES. [2024-10-11 17:10:39,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40461 conditions, 13963 events. 3098/13963 cut-off events. For 39408/41721 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 148142 event pairs, 118 based on Foata normal form. 270/13623 useless extension candidates. Maximal degree in co-relation 40358. Up to 2853 conditions per place. [2024-10-11 17:10:40,014 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 118 selfloop transitions, 59 changer transitions 0/570 dead transitions. [2024-10-11 17:10:40,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 570 transitions, 4810 flow [2024-10-11 17:10:40,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:40,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:40,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1501 transitions. [2024-10-11 17:10:40,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8977272727272727 [2024-10-11 17:10:40,019 INFO L175 Difference]: Start difference. First operand has 297 places, 530 transitions, 4030 flow. Second operand 8 states and 1501 transitions. [2024-10-11 17:10:40,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 570 transitions, 4810 flow [2024-10-11 17:10:40,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 570 transitions, 4687 flow, removed 29 selfloop flow, removed 4 redundant places. [2024-10-11 17:10:40,145 INFO L231 Difference]: Finished difference. Result has 303 places, 543 transitions, 4280 flow [2024-10-11 17:10:40,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3872, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4280, PETRI_PLACES=303, PETRI_TRANSITIONS=543} [2024-10-11 17:10:40,146 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 103 predicate places. [2024-10-11 17:10:40,147 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 543 transitions, 4280 flow [2024-10-11 17:10:40,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:40,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:40,148 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] [2024-10-11 17:10:40,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 17:10:40,148 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:40,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:40,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1214011035, now seen corresponding path program 11 times [2024-10-11 17:10:40,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:40,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500914872] [2024-10-11 17:10:40,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:40,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:40,542 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 17:10:40,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:40,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500914872] [2024-10-11 17:10:40,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500914872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:40,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:40,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:40,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247533743] [2024-10-11 17:10:40,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:40,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:40,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:40,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:40,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:41,332 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:41,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 543 transitions, 4280 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:41,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:41,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:41,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:43,384 INFO L124 PetriNetUnfolderBase]: 3122/14118 cut-off events. [2024-10-11 17:10:43,384 INFO L125 PetriNetUnfolderBase]: For 46831/49233 co-relation queries the response was YES. [2024-10-11 17:10:43,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41579 conditions, 14118 events. 3122/14118 cut-off events. For 46831/49233 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 150102 event pairs, 111 based on Foata normal form. 253/13760 useless extension candidates. Maximal degree in co-relation 41473. Up to 2828 conditions per place. [2024-10-11 17:10:43,478 INFO L140 encePairwiseOnDemand]: 196/209 looper letters, 148 selfloop transitions, 34 changer transitions 0/575 dead transitions. [2024-10-11 17:10:43,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 575 transitions, 4949 flow [2024-10-11 17:10:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:43,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:43,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1507 transitions. [2024-10-11 17:10:43,483 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9013157894736842 [2024-10-11 17:10:43,483 INFO L175 Difference]: Start difference. First operand has 303 places, 543 transitions, 4280 flow. Second operand 8 states and 1507 transitions. [2024-10-11 17:10:43,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 575 transitions, 4949 flow [2024-10-11 17:10:43,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 575 transitions, 4857 flow, removed 23 selfloop flow, removed 3 redundant places. [2024-10-11 17:10:43,652 INFO L231 Difference]: Finished difference. Result has 311 places, 553 transitions, 4440 flow [2024-10-11 17:10:43,652 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4196, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4440, PETRI_PLACES=311, PETRI_TRANSITIONS=553} [2024-10-11 17:10:43,653 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 111 predicate places. [2024-10-11 17:10:43,653 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 553 transitions, 4440 flow [2024-10-11 17:10:43,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:43,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:43,654 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] [2024-10-11 17:10:43,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 17:10:43,654 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:43,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:43,654 INFO L85 PathProgramCache]: Analyzing trace with hash 662606125, now seen corresponding path program 12 times [2024-10-11 17:10:43,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:43,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493112034] [2024-10-11 17:10:43,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:43,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:43,936 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 17:10:43,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:43,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493112034] [2024-10-11 17:10:43,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493112034] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:43,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:43,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:43,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343386159] [2024-10-11 17:10:43,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:43,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:43,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:43,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:43,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:44,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:44,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 553 transitions, 4440 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:44,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:44,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:44,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:47,155 INFO L124 PetriNetUnfolderBase]: 3152/14485 cut-off events. [2024-10-11 17:10:47,155 INFO L125 PetriNetUnfolderBase]: For 45727/48139 co-relation queries the response was YES. [2024-10-11 17:10:47,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42603 conditions, 14485 events. 3152/14485 cut-off events. For 45727/48139 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 155457 event pairs, 117 based on Foata normal form. 222/14076 useless extension candidates. Maximal degree in co-relation 42493. Up to 2903 conditions per place. [2024-10-11 17:10:47,274 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 151 selfloop transitions, 45 changer transitions 0/589 dead transitions. [2024-10-11 17:10:47,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 589 transitions, 5228 flow [2024-10-11 17:10:47,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:47,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1506 transitions. [2024-10-11 17:10:47,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9007177033492823 [2024-10-11 17:10:47,277 INFO L175 Difference]: Start difference. First operand has 311 places, 553 transitions, 4440 flow. Second operand 8 states and 1506 transitions. [2024-10-11 17:10:47,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 589 transitions, 5228 flow [2024-10-11 17:10:47,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 589 transitions, 5099 flow, removed 48 selfloop flow, removed 3 redundant places. [2024-10-11 17:10:47,432 INFO L231 Difference]: Finished difference. Result has 318 places, 569 transitions, 4711 flow [2024-10-11 17:10:47,432 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4355, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=4711, PETRI_PLACES=318, PETRI_TRANSITIONS=569} [2024-10-11 17:10:47,432 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 118 predicate places. [2024-10-11 17:10:47,433 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 569 transitions, 4711 flow [2024-10-11 17:10:47,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:47,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:47,433 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] [2024-10-11 17:10:47,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 17:10:47,433 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:47,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:47,434 INFO L85 PathProgramCache]: Analyzing trace with hash 438507949, now seen corresponding path program 13 times [2024-10-11 17:10:47,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:47,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316111151] [2024-10-11 17:10:47,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:47,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:47,998 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 17:10:47,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:47,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316111151] [2024-10-11 17:10:47,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316111151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:47,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:47,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:47,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427173915] [2024-10-11 17:10:47,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:47,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:48,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:48,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:48,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:48,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:48,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 569 transitions, 4711 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:48,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:48,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:48,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:50,500 INFO L124 PetriNetUnfolderBase]: 2496/12225 cut-off events. [2024-10-11 17:10:50,500 INFO L125 PetriNetUnfolderBase]: For 38774/40812 co-relation queries the response was YES. [2024-10-11 17:10:50,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35627 conditions, 12225 events. 2496/12225 cut-off events. For 38774/40812 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 127548 event pairs, 96 based on Foata normal form. 171/11847 useless extension candidates. Maximal degree in co-relation 35514. Up to 2422 conditions per place. [2024-10-11 17:10:50,594 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 147 selfloop transitions, 51 changer transitions 0/591 dead transitions. [2024-10-11 17:10:50,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 591 transitions, 5355 flow [2024-10-11 17:10:50,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:50,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1509 transitions. [2024-10-11 17:10:50,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.902511961722488 [2024-10-11 17:10:50,597 INFO L175 Difference]: Start difference. First operand has 318 places, 569 transitions, 4711 flow. Second operand 8 states and 1509 transitions. [2024-10-11 17:10:50,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 591 transitions, 5355 flow [2024-10-11 17:10:50,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 591 transitions, 5282 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-10-11 17:10:50,732 INFO L231 Difference]: Finished difference. Result has 324 places, 582 transitions, 5012 flow [2024-10-11 17:10:50,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4599, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5012, PETRI_PLACES=324, PETRI_TRANSITIONS=582} [2024-10-11 17:10:50,733 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 124 predicate places. [2024-10-11 17:10:50,733 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 582 transitions, 5012 flow [2024-10-11 17:10:50,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:50,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:50,734 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] [2024-10-11 17:10:50,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 17:10:50,734 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:50,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:50,735 INFO L85 PathProgramCache]: Analyzing trace with hash -87831373, now seen corresponding path program 14 times [2024-10-11 17:10:50,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:50,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753671869] [2024-10-11 17:10:50,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:50,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:51,143 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 17:10:51,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:51,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753671869] [2024-10-11 17:10:51,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753671869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:51,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:51,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 17:10:51,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399362992] [2024-10-11 17:10:51,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:51,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 17:10:51,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:51,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 17:10:51,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-11 17:10:51,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 209 [2024-10-11 17:10:51,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 582 transitions, 5012 flow. Second operand has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:51,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:51,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 209 [2024-10-11 17:10:51,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:52,571 INFO L124 PetriNetUnfolderBase]: 355/3866 cut-off events. [2024-10-11 17:10:52,571 INFO L125 PetriNetUnfolderBase]: For 13649/13827 co-relation queries the response was YES. [2024-10-11 17:10:52,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10724 conditions, 3866 events. 355/3866 cut-off events. For 13649/13827 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 35999 event pairs, 14 based on Foata normal form. 62/3753 useless extension candidates. Maximal degree in co-relation 10608. Up to 738 conditions per place. [2024-10-11 17:10:52,592 INFO L140 encePairwiseOnDemand]: 195/209 looper letters, 111 selfloop transitions, 88 changer transitions 0/373 dead transitions. [2024-10-11 17:10:52,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 373 transitions, 3878 flow [2024-10-11 17:10:52,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:52,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:52,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1500 transitions. [2024-10-11 17:10:52,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8971291866028708 [2024-10-11 17:10:52,594 INFO L175 Difference]: Start difference. First operand has 324 places, 582 transitions, 5012 flow. Second operand 8 states and 1500 transitions. [2024-10-11 17:10:52,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 373 transitions, 3878 flow [2024-10-11 17:10:52,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 373 transitions, 3435 flow, removed 96 selfloop flow, removed 18 redundant places. [2024-10-11 17:10:52,632 INFO L231 Difference]: Finished difference. Result has 308 places, 370 transitions, 3264 flow [2024-10-11 17:10:52,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2840, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3264, PETRI_PLACES=308, PETRI_TRANSITIONS=370} [2024-10-11 17:10:52,633 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 108 predicate places. [2024-10-11 17:10:52,633 INFO L471 AbstractCegarLoop]: Abstraction has has 308 places, 370 transitions, 3264 flow [2024-10-11 17:10:52,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.375) internal successors, (1459), 8 states have internal predecessors, (1459), 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 17:10:52,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:52,633 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] [2024-10-11 17:10:52,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 17:10:52,634 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting workerErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:52,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:52,634 INFO L85 PathProgramCache]: Analyzing trace with hash 262692781, now seen corresponding path program 1 times [2024-10-11 17:10:52,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:52,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953142861] [2024-10-11 17:10:52,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:52,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:52,825 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 17:10:52,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:52,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953142861] [2024-10-11 17:10:52,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953142861] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:52,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:52,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 17:10:52,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180211570] [2024-10-11 17:10:52,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:52,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 17:10:52,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:52,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 17:10:52,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 17:10:53,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 209 [2024-10-11 17:10:53,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 370 transitions, 3264 flow. Second operand has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 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 17:10:53,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:53,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 209 [2024-10-11 17:10:53,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:54,016 INFO L124 PetriNetUnfolderBase]: 417/4637 cut-off events. [2024-10-11 17:10:54,016 INFO L125 PetriNetUnfolderBase]: For 14390/14537 co-relation queries the response was YES. [2024-10-11 17:10:54,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10641 conditions, 4637 events. 417/4637 cut-off events. For 14390/14537 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 41255 event pairs, 11 based on Foata normal form. 113/4568 useless extension candidates. Maximal degree in co-relation 10522. Up to 567 conditions per place. [2024-10-11 17:10:54,039 INFO L140 encePairwiseOnDemand]: 198/209 looper letters, 167 selfloop transitions, 24 changer transitions 0/425 dead transitions. [2024-10-11 17:10:54,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 425 transitions, 4352 flow [2024-10-11 17:10:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 17:10:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 17:10:54,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1433 transitions. [2024-10-11 17:10:54,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8570574162679426 [2024-10-11 17:10:54,041 INFO L175 Difference]: Start difference. First operand has 308 places, 370 transitions, 3264 flow. Second operand 8 states and 1433 transitions. [2024-10-11 17:10:54,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 425 transitions, 4352 flow [2024-10-11 17:10:54,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 425 transitions, 4189 flow, removed 27 selfloop flow, removed 5 redundant places. [2024-10-11 17:10:54,077 INFO L231 Difference]: Finished difference. Result has 314 places, 389 transitions, 3497 flow [2024-10-11 17:10:54,078 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3121, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3497, PETRI_PLACES=314, PETRI_TRANSITIONS=389} [2024-10-11 17:10:54,078 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 114 predicate places. [2024-10-11 17:10:54,078 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 389 transitions, 3497 flow [2024-10-11 17:10:54,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 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 17:10:54,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 17:10:54,079 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] [2024-10-11 17:10:54,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 17:10:54,079 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting workerErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2024-10-11 17:10:54,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:10:54,079 INFO L85 PathProgramCache]: Analyzing trace with hash 796513834, now seen corresponding path program 1 times [2024-10-11 17:10:54,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:10:54,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738334080] [2024-10-11 17:10:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:10:54,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:10:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:10:54,372 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 17:10:54,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:10:54,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738334080] [2024-10-11 17:10:54,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738334080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:10:54,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:10:54,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 17:10:54,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030196660] [2024-10-11 17:10:54,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:10:54,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 17:10:54,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:10:54,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 17:10:54,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 17:10:54,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 209 [2024-10-11 17:10:54,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 389 transitions, 3497 flow. Second operand has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 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 17:10:54,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 17:10:54,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 209 [2024-10-11 17:10:54,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 17:10:55,284 INFO L124 PetriNetUnfolderBase]: 705/5112 cut-off events. [2024-10-11 17:10:55,284 INFO L125 PetriNetUnfolderBase]: For 23436/24023 co-relation queries the response was YES. [2024-10-11 17:10:55,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14681 conditions, 5112 events. 705/5112 cut-off events. For 23436/24023 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 44608 event pairs, 157 based on Foata normal form. 550/5495 useless extension candidates. Maximal degree in co-relation 14557. Up to 2314 conditions per place. [2024-10-11 17:10:55,308 INFO L140 encePairwiseOnDemand]: 203/209 looper letters, 0 selfloop transitions, 0 changer transitions 388/388 dead transitions. [2024-10-11 17:10:55,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 388 transitions, 3843 flow [2024-10-11 17:10:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 17:10:55,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 17:10:55,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 904 transitions. [2024-10-11 17:10:55,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7208931419457735 [2024-10-11 17:10:55,310 INFO L175 Difference]: Start difference. First operand has 314 places, 389 transitions, 3497 flow. Second operand 6 states and 904 transitions. [2024-10-11 17:10:55,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 388 transitions, 3843 flow [2024-10-11 17:10:55,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 388 transitions, 3837 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 17:10:55,358 INFO L231 Difference]: Finished difference. Result has 316 places, 0 transitions, 0 flow [2024-10-11 17:10:55,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=3489, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=316, PETRI_TRANSITIONS=0} [2024-10-11 17:10:55,359 INFO L277 CegarLoopForPetriNet]: 200 programPoint places, 116 predicate places. [2024-10-11 17:10:55,359 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 0 transitions, 0 flow [2024-10-11 17:10:55,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 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 17:10:55,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 17 remaining) [2024-10-11 17:10:55,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2024-10-11 17:10:55,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2024-10-11 17:10:55,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2024-10-11 17:10:55,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 17 remaining) [2024-10-11 17:10:55,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2024-10-11 17:10:55,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2024-10-11 17:10:55,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2024-10-11 17:10:55,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2024-10-11 17:10:55,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2024-10-11 17:10:55,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2024-10-11 17:10:55,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2024-10-11 17:10:55,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2024-10-11 17:10:55,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2024-10-11 17:10:55,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2024-10-11 17:10:55,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2024-10-11 17:10:55,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2024-10-11 17:10:55,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 17:10:55,364 INFO L407 BasicCegarLoop]: Path program histogram: [14, 1, 1, 1, 1, 1, 1] [2024-10-11 17:10:55,369 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 17:10:55,369 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:10:55,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:10:55 BasicIcfg [2024-10-11 17:10:55,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:10:55,374 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:10:55,374 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:10:55,375 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:10:55,375 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:09:58" (3/4) ... [2024-10-11 17:10:55,376 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 17:10:55,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2024-10-11 17:10:55,383 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-11 17:10:55,383 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 17:10:55,384 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 17:10:55,384 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 17:10:55,463 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 17:10:55,463 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 17:10:55,463 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:10:55,464 INFO L158 Benchmark]: Toolchain (without parser) took 58774.01ms. Allocated memory was 146.8MB in the beginning and 13.1GB in the end (delta: 12.9GB). Free memory was 110.5MB in the beginning and 11.0GB in the end (delta: -10.9GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2024-10-11 17:10:55,464 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 146.8MB. Free memory is still 113.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:10:55,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 535.78ms. Allocated memory is still 146.8MB. Free memory was 109.9MB in the beginning and 87.4MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 17:10:55,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.97ms. Allocated memory is still 146.8MB. Free memory was 87.4MB in the beginning and 84.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:10:55,465 INFO L158 Benchmark]: Boogie Preprocessor took 39.14ms. Allocated memory is still 146.8MB. Free memory was 84.1MB in the beginning and 82.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:10:55,465 INFO L158 Benchmark]: RCFGBuilder took 676.15ms. Allocated memory is still 146.8MB. Free memory was 81.4MB in the beginning and 95.1MB in the end (delta: -13.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-11 17:10:55,465 INFO L158 Benchmark]: TraceAbstraction took 57363.46ms. Allocated memory was 146.8MB in the beginning and 13.1GB in the end (delta: 12.9GB). Free memory was 94.2MB in the beginning and 11.0GB in the end (delta: -10.9GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2024-10-11 17:10:55,465 INFO L158 Benchmark]: Witness Printer took 88.67ms. Allocated memory is still 13.1GB. Free memory was 11.0GB in the beginning and 11.0GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 17:10:55,467 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 146.8MB. Free memory is still 113.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 535.78ms. Allocated memory is still 146.8MB. Free memory was 109.9MB in the beginning and 87.4MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.97ms. Allocated memory is still 146.8MB. Free memory was 87.4MB in the beginning and 84.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.14ms. Allocated memory is still 146.8MB. Free memory was 84.1MB in the beginning and 82.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 676.15ms. Allocated memory is still 146.8MB. Free memory was 81.4MB in the beginning and 95.1MB in the end (delta: -13.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 57363.46ms. Allocated memory was 146.8MB in the beginning and 13.1GB in the end (delta: 12.9GB). Free memory was 94.2MB in the beginning and 11.0GB in the end (delta: -10.9GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. * Witness Printer took 88.67ms. Allocated memory is still 13.1GB. Free memory was 11.0GB in the beginning and 11.0GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 726]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 299 locations, 17 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 57.2s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 47.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9685 SdHoareTripleChecker+Valid, 12.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7488 mSDsluCounter, 9232 SdHoareTripleChecker+Invalid, 10.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8564 mSDsCounter, 294 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18440 IncrementalHoareTripleChecker+Invalid, 18734 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 294 mSolverCounterUnsat, 668 mSDtfsCounter, 18440 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5012occurred in iteration=17, InterpolantAutomatonStates: 150, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 1650 NumberOfCodeBlocks, 1650 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1630 ConstructedInterpolants, 0 QuantifiedInterpolants, 6193 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 17:10:55,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE