./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/weaver/popl20-three-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:15:18,980 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:15:19,038 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-14 17:15:19,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:15:19,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:15:19,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:15:19,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:15:19,065 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:15:19,066 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:15:19,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:15:19,066 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:15:19,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:15:19,067 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:15:19,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:15:19,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 17:15:19,068 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:15:19,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:15:19,068 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:15:19,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:15:19,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 17:15:19,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:15:19,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 17:15:19,070 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-14 17:15:19,070 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:15:19,071 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:15:19,071 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:15:19,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 17:15:19,071 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:15:19,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:15:19,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:15:19,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:15:19,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:15:19,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:15:19,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:15:19,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 17:15:19,073 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:15:19,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:15:19,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:15:19,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:15:19,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:15:19,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:15:19,075 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e [2024-10-14 17:15:19,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:15:19,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:15:19,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:15:19,346 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:15:19,346 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:15:19,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-10-14 17:15:20,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:15:21,013 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:15:21,013 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-10-14 17:15:21,022 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9065bab94/7cb77e3e202947f999bfda721ec7c45d/FLAG4580acdda [2024-10-14 17:15:21,035 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9065bab94/7cb77e3e202947f999bfda721ec7c45d [2024-10-14 17:15:21,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:15:21,037 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:15:21,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:15:21,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:15:21,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:15:21,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658820a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21, skipping insertion in model container [2024-10-14 17:15:21,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,067 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:15:21,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:15:21,228 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:15:21,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:15:21,279 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:15:21,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21 WrapperNode [2024-10-14 17:15:21,279 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:15:21,280 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:15:21,280 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:15:21,280 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:15:21,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,294 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,325 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 189 [2024-10-14 17:15:21,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:15:21,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:15:21,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:15:21,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:15:21,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,352 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:15:21,361 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:15:21,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:15:21,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:15:21,362 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (1/1) ... [2024-10-14 17:15:21,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:15:21,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:15:21,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:15:21,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:15:21,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:15:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 17:15:21,471 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 17:15:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 17:15:21,471 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 17:15:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-14 17:15:21,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-14 17:15:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-14 17:15:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-14 17:15:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 17:15:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 17:15:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 17:15:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:15:21,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:15:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-14 17:15:21,474 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 17:15:21,592 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:15:21,597 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:15:22,068 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 17:15:22,069 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:15:22,212 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:15:22,213 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-14 17:15:22,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:15:22 BoogieIcfgContainer [2024-10-14 17:15:22,214 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:15:22,216 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:15:22,216 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:15:22,218 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:15:22,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:15:21" (1/3) ... [2024-10-14 17:15:22,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3ac52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:15:22, skipping insertion in model container [2024-10-14 17:15:22,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:15:21" (2/3) ... [2024-10-14 17:15:22,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3ac52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:15:22, skipping insertion in model container [2024-10-14 17:15:22,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:15:22" (3/3) ... [2024-10-14 17:15:22,221 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-10-14 17:15:22,234 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:15:22,235 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2024-10-14 17:15:22,235 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 17:15:22,335 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-14 17:15:22,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 344 transitions, 709 flow [2024-10-14 17:15:22,454 INFO L124 PetriNetUnfolderBase]: 20/341 cut-off events. [2024-10-14 17:15:22,454 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 17:15:22,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 341 events. 20/341 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 460 event pairs, 0 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 291. Up to 2 conditions per place. [2024-10-14 17:15:22,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 344 transitions, 709 flow [2024-10-14 17:15:22,466 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 324 transitions, 666 flow [2024-10-14 17:15:22,473 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:15:22,478 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;@7ce82eba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:15:22,478 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-10-14 17:15:22,482 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 17:15:22,482 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-10-14 17:15:22,482 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 17:15:22,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:22,483 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] [2024-10-14 17:15:22,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:22,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:22,488 INFO L85 PathProgramCache]: Analyzing trace with hash 335780089, now seen corresponding path program 1 times [2024-10-14 17:15:22,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:22,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243857485] [2024-10-14 17:15:22,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:22,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:22,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:22,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:22,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243857485] [2024-10-14 17:15:22,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243857485] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:22,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:22,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:22,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691541237] [2024-10-14 17:15:22,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:22,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:22,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:22,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:22,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:22,693 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 344 [2024-10-14 17:15:22,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 324 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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) [2024-10-14 17:15:22,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:22,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 344 [2024-10-14 17:15:22,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:22,938 INFO L124 PetriNetUnfolderBase]: 85/884 cut-off events. [2024-10-14 17:15:22,938 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-14 17:15:22,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 884 events. 85/884 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4499 event pairs, 51 based on Foata normal form. 9/749 useless extension candidates. Maximal degree in co-relation 759. Up to 134 conditions per place. [2024-10-14 17:15:22,950 INFO L140 encePairwiseOnDemand]: 317/344 looper letters, 18 selfloop transitions, 2 changer transitions 6/299 dead transitions. [2024-10-14 17:15:22,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 299 transitions, 656 flow [2024-10-14 17:15:22,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:22,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:22,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 933 transitions. [2024-10-14 17:15:22,967 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9040697674418605 [2024-10-14 17:15:22,970 INFO L175 Difference]: Start difference. First operand has 315 places, 324 transitions, 666 flow. Second operand 3 states and 933 transitions. [2024-10-14 17:15:22,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 299 transitions, 656 flow [2024-10-14 17:15:22,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 299 transitions, 644 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-14 17:15:22,980 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 596 flow [2024-10-14 17:15:22,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=298, PETRI_TRANSITIONS=293} [2024-10-14 17:15:22,987 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -17 predicate places. [2024-10-14 17:15:22,988 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 596 flow [2024-10-14 17:15:22,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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) [2024-10-14 17:15:22,989 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:22,989 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:22,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:15:22,989 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:22,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:22,990 INFO L85 PathProgramCache]: Analyzing trace with hash -948979931, now seen corresponding path program 1 times [2024-10-14 17:15:22,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:22,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753146546] [2024-10-14 17:15:22,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:22,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:23,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:23,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:23,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753146546] [2024-10-14 17:15:23,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753146546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:23,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:23,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:23,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488208342] [2024-10-14 17:15:23,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:23,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:23,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:23,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:23,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:23,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 344 [2024-10-14 17:15:23,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 293 transitions, 596 flow. Second operand has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 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) [2024-10-14 17:15:23,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:23,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 344 [2024-10-14 17:15:23,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:23,205 INFO L124 PetriNetUnfolderBase]: 213/995 cut-off events. [2024-10-14 17:15:23,205 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-10-14 17:15:23,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 995 events. 213/995 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5265 event pairs, 128 based on Foata normal form. 0/858 useless extension candidates. Maximal degree in co-relation 1281. Up to 297 conditions per place. [2024-10-14 17:15:23,213 INFO L140 encePairwiseOnDemand]: 337/344 looper letters, 21 selfloop transitions, 1 changer transitions 0/287 dead transitions. [2024-10-14 17:15:23,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 287 transitions, 628 flow [2024-10-14 17:15:23,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:23,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:23,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2024-10-14 17:15:23,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8701550387596899 [2024-10-14 17:15:23,216 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 596 flow. Second operand 3 states and 898 transitions. [2024-10-14 17:15:23,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 287 transitions, 628 flow [2024-10-14 17:15:23,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 287 transitions, 624 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:23,224 INFO L231 Difference]: Finished difference. Result has 286 places, 287 transitions, 582 flow [2024-10-14 17:15:23,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=286, PETRI_TRANSITIONS=287} [2024-10-14 17:15:23,225 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -29 predicate places. [2024-10-14 17:15:23,225 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 287 transitions, 582 flow [2024-10-14 17:15:23,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 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) [2024-10-14 17:15:23,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:23,226 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:23,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:15:23,226 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:23,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:23,227 INFO L85 PathProgramCache]: Analyzing trace with hash 785090757, now seen corresponding path program 1 times [2024-10-14 17:15:23,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:23,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584027636] [2024-10-14 17:15:23,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:23,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:23,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:23,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:23,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584027636] [2024-10-14 17:15:23,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584027636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:23,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:23,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:15:23,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143729793] [2024-10-14 17:15:23,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:23,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:15:23,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:23,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:15:23,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:15:23,832 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 344 [2024-10-14 17:15:23,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 287 transitions, 582 flow. Second operand has 6 states, 6 states have (on average 260.5) internal successors, (1563), 6 states have internal predecessors, (1563), 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) [2024-10-14 17:15:23,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:23,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 344 [2024-10-14 17:15:23,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:24,021 INFO L124 PetriNetUnfolderBase]: 157/944 cut-off events. [2024-10-14 17:15:24,022 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-10-14 17:15:24,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 944 events. 157/944 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4613 event pairs, 100 based on Foata normal form. 0/822 useless extension candidates. Maximal degree in co-relation 1221. Up to 263 conditions per place. [2024-10-14 17:15:24,029 INFO L140 encePairwiseOnDemand]: 326/344 looper letters, 41 selfloop transitions, 15 changer transitions 0/284 dead transitions. [2024-10-14 17:15:24,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 284 transitions, 688 flow [2024-10-14 17:15:24,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:15:24,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:15:24,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1613 transitions. [2024-10-14 17:15:24,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7814922480620154 [2024-10-14 17:15:24,032 INFO L175 Difference]: Start difference. First operand has 286 places, 287 transitions, 582 flow. Second operand 6 states and 1613 transitions. [2024-10-14 17:15:24,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 284 transitions, 688 flow [2024-10-14 17:15:24,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 284 transitions, 687 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:15:24,036 INFO L231 Difference]: Finished difference. Result has 287 places, 284 transitions, 605 flow [2024-10-14 17:15:24,037 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=605, PETRI_PLACES=287, PETRI_TRANSITIONS=284} [2024-10-14 17:15:24,037 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -28 predicate places. [2024-10-14 17:15:24,037 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 284 transitions, 605 flow [2024-10-14 17:15:24,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 260.5) internal successors, (1563), 6 states have internal predecessors, (1563), 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) [2024-10-14 17:15:24,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:24,039 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] [2024-10-14 17:15:24,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 17:15:24,039 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:24,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:24,043 INFO L85 PathProgramCache]: Analyzing trace with hash 82838698, now seen corresponding path program 1 times [2024-10-14 17:15:24,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:24,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829120594] [2024-10-14 17:15:24,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:24,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:24,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:24,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:24,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829120594] [2024-10-14 17:15:24,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829120594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:24,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:24,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:24,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601409476] [2024-10-14 17:15:24,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:24,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:24,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:24,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:24,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:24,101 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 344 [2024-10-14 17:15:24,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 284 transitions, 605 flow. Second operand has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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) [2024-10-14 17:15:24,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:24,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 344 [2024-10-14 17:15:24,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:24,187 INFO L124 PetriNetUnfolderBase]: 45/439 cut-off events. [2024-10-14 17:15:24,187 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-14 17:15:24,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 439 events. 45/439 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1327 event pairs, 23 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 500. Up to 67 conditions per place. [2024-10-14 17:15:24,189 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 13 selfloop transitions, 2 changer transitions 0/283 dead transitions. [2024-10-14 17:15:24,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 283 transitions, 633 flow [2024-10-14 17:15:24,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:24,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:24,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2024-10-14 17:15:24,191 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8905038759689923 [2024-10-14 17:15:24,191 INFO L175 Difference]: Start difference. First operand has 287 places, 284 transitions, 605 flow. Second operand 3 states and 919 transitions. [2024-10-14 17:15:24,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 283 transitions, 633 flow [2024-10-14 17:15:24,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 283 transitions, 603 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-14 17:15:24,195 INFO L231 Difference]: Finished difference. Result has 283 places, 283 transitions, 577 flow [2024-10-14 17:15:24,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=577, PETRI_PLACES=283, PETRI_TRANSITIONS=283} [2024-10-14 17:15:24,197 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-10-14 17:15:24,197 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 283 transitions, 577 flow [2024-10-14 17:15:24,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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) [2024-10-14 17:15:24,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:24,198 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] [2024-10-14 17:15:24,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:15:24,199 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:24,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:24,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1979469290, now seen corresponding path program 1 times [2024-10-14 17:15:24,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:24,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692255721] [2024-10-14 17:15:24,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:24,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:24,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:24,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:24,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692255721] [2024-10-14 17:15:24,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692255721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:24,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:24,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:24,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654291651] [2024-10-14 17:15:24,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:24,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:24,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:24,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:24,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:24,256 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 344 [2024-10-14 17:15:24,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 283 transitions, 577 flow. Second operand has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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) [2024-10-14 17:15:24,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:24,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 344 [2024-10-14 17:15:24,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:24,340 INFO L124 PetriNetUnfolderBase]: 45/438 cut-off events. [2024-10-14 17:15:24,341 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-14 17:15:24,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 438 events. 45/438 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1305 event pairs, 23 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 486. Up to 67 conditions per place. [2024-10-14 17:15:24,343 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 13 selfloop transitions, 2 changer transitions 0/282 dead transitions. [2024-10-14 17:15:24,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 282 transitions, 605 flow [2024-10-14 17:15:24,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:24,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:24,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2024-10-14 17:15:24,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8905038759689923 [2024-10-14 17:15:24,345 INFO L175 Difference]: Start difference. First operand has 283 places, 283 transitions, 577 flow. Second operand 3 states and 919 transitions. [2024-10-14 17:15:24,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 282 transitions, 605 flow [2024-10-14 17:15:24,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 282 transitions, 601 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:24,349 INFO L231 Difference]: Finished difference. Result has 282 places, 282 transitions, 575 flow [2024-10-14 17:15:24,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=575, PETRI_PLACES=282, PETRI_TRANSITIONS=282} [2024-10-14 17:15:24,351 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -33 predicate places. [2024-10-14 17:15:24,351 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 282 transitions, 575 flow [2024-10-14 17:15:24,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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) [2024-10-14 17:15:24,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:24,353 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] [2024-10-14 17:15:24,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 17:15:24,353 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:24,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:24,354 INFO L85 PathProgramCache]: Analyzing trace with hash -166747507, now seen corresponding path program 1 times [2024-10-14 17:15:24,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:24,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219149528] [2024-10-14 17:15:24,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:24,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:24,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:24,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:24,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219149528] [2024-10-14 17:15:24,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219149528] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:24,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:24,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:24,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787019646] [2024-10-14 17:15:24,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:24,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:24,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:24,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:24,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:24,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-10-14 17:15:24,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 282 transitions, 575 flow. Second operand has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 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) [2024-10-14 17:15:24,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:24,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-10-14 17:15:24,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:24,515 INFO L124 PetriNetUnfolderBase]: 28/352 cut-off events. [2024-10-14 17:15:24,515 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-14 17:15:24,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 352 events. 28/352 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 779 event pairs, 12 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 374. Up to 44 conditions per place. [2024-10-14 17:15:24,517 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 12 selfloop transitions, 2 changer transitions 0/281 dead transitions. [2024-10-14 17:15:24,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 281 transitions, 601 flow [2024-10-14 17:15:24,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:24,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:24,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2024-10-14 17:15:24,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8924418604651163 [2024-10-14 17:15:24,520 INFO L175 Difference]: Start difference. First operand has 282 places, 282 transitions, 575 flow. Second operand 3 states and 921 transitions. [2024-10-14 17:15:24,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 281 transitions, 601 flow [2024-10-14 17:15:24,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 281 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:24,524 INFO L231 Difference]: Finished difference. Result has 281 places, 281 transitions, 573 flow [2024-10-14 17:15:24,524 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=573, PETRI_PLACES=281, PETRI_TRANSITIONS=281} [2024-10-14 17:15:24,525 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -34 predicate places. [2024-10-14 17:15:24,526 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 281 transitions, 573 flow [2024-10-14 17:15:24,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 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) [2024-10-14 17:15:24,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:24,527 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:24,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 17:15:24,528 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:24,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:24,528 INFO L85 PathProgramCache]: Analyzing trace with hash 2088733689, now seen corresponding path program 1 times [2024-10-14 17:15:24,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:24,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403416469] [2024-10-14 17:15:24,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:24,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:24,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:24,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403416469] [2024-10-14 17:15:24,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403416469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:24,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:24,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:24,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996499787] [2024-10-14 17:15:24,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:24,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:24,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:24,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:24,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:24,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-10-14 17:15:24,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 281 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 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) [2024-10-14 17:15:24,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:24,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-10-14 17:15:24,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:24,703 INFO L124 PetriNetUnfolderBase]: 84/726 cut-off events. [2024-10-14 17:15:24,704 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-10-14 17:15:24,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 870 conditions, 726 events. 84/726 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3137 event pairs, 23 based on Foata normal form. 0/652 useless extension candidates. Maximal degree in co-relation 838. Up to 70 conditions per place. [2024-10-14 17:15:24,706 INFO L140 encePairwiseOnDemand]: 339/344 looper letters, 16 selfloop transitions, 3 changer transitions 0/284 dead transitions. [2024-10-14 17:15:24,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 284 transitions, 619 flow [2024-10-14 17:15:24,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:24,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:24,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 927 transitions. [2024-10-14 17:15:24,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8982558139534884 [2024-10-14 17:15:24,708 INFO L175 Difference]: Start difference. First operand has 281 places, 281 transitions, 573 flow. Second operand 3 states and 927 transitions. [2024-10-14 17:15:24,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 284 transitions, 619 flow [2024-10-14 17:15:24,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 284 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:24,712 INFO L231 Difference]: Finished difference. Result has 279 places, 279 transitions, 571 flow [2024-10-14 17:15:24,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=571, PETRI_PLACES=279, PETRI_TRANSITIONS=279} [2024-10-14 17:15:24,713 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -36 predicate places. [2024-10-14 17:15:24,713 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 279 transitions, 571 flow [2024-10-14 17:15:24,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 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) [2024-10-14 17:15:24,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:24,714 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:24,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:15:24,714 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:24,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:24,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1523378363, now seen corresponding path program 1 times [2024-10-14 17:15:24,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:24,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54806470] [2024-10-14 17:15:24,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:24,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:24,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:24,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54806470] [2024-10-14 17:15:24,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54806470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:24,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:24,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:24,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930802357] [2024-10-14 17:15:24,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:24,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:24,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:24,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:24,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:24,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 344 [2024-10-14 17:15:24,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 279 transitions, 571 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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) [2024-10-14 17:15:24,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:24,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 344 [2024-10-14 17:15:24,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:24,851 INFO L124 PetriNetUnfolderBase]: 76/765 cut-off events. [2024-10-14 17:15:24,851 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-10-14 17:15:24,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 765 events. 76/765 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3511 event pairs, 8 based on Foata normal form. 0/692 useless extension candidates. Maximal degree in co-relation 878. Up to 99 conditions per place. [2024-10-14 17:15:24,854 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 19 selfloop transitions, 2 changer transitions 0/287 dead transitions. [2024-10-14 17:15:24,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 287 transitions, 634 flow [2024-10-14 17:15:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:24,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:24,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions. [2024-10-14 17:15:24,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9079457364341085 [2024-10-14 17:15:24,856 INFO L175 Difference]: Start difference. First operand has 279 places, 279 transitions, 571 flow. Second operand 3 states and 937 transitions. [2024-10-14 17:15:24,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 287 transitions, 634 flow [2024-10-14 17:15:24,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 287 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:24,860 INFO L231 Difference]: Finished difference. Result has 279 places, 280 transitions, 577 flow [2024-10-14 17:15:24,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=577, PETRI_PLACES=279, PETRI_TRANSITIONS=280} [2024-10-14 17:15:24,861 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -36 predicate places. [2024-10-14 17:15:24,861 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 280 transitions, 577 flow [2024-10-14 17:15:24,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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) [2024-10-14 17:15:24,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:24,862 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:24,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 17:15:24,862 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:24,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:24,862 INFO L85 PathProgramCache]: Analyzing trace with hash -273573217, now seen corresponding path program 1 times [2024-10-14 17:15:24,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:24,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391539183] [2024-10-14 17:15:24,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:24,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:24,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:24,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:24,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391539183] [2024-10-14 17:15:24,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391539183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:24,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:24,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 17:15:24,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794210381] [2024-10-14 17:15:24,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:24,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 17:15:24,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:24,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 17:15:24,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 17:15:25,277 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 344 [2024-10-14 17:15:25,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 280 transitions, 577 flow. Second operand has 7 states, 7 states have (on average 280.14285714285717) internal successors, (1961), 7 states have internal predecessors, (1961), 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) [2024-10-14 17:15:25,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:25,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 344 [2024-10-14 17:15:25,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:25,736 INFO L124 PetriNetUnfolderBase]: 193/1399 cut-off events. [2024-10-14 17:15:25,737 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-10-14 17:15:25,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1932 conditions, 1399 events. 193/1399 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6802 event pairs, 96 based on Foata normal form. 9/1319 useless extension candidates. Maximal degree in co-relation 1898. Up to 201 conditions per place. [2024-10-14 17:15:25,741 INFO L140 encePairwiseOnDemand]: 315/344 looper letters, 52 selfloop transitions, 42 changer transitions 0/331 dead transitions. [2024-10-14 17:15:25,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 331 transitions, 885 flow [2024-10-14 17:15:25,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 17:15:25,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 17:15:25,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2852 transitions. [2024-10-14 17:15:25,746 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8290697674418605 [2024-10-14 17:15:25,746 INFO L175 Difference]: Start difference. First operand has 279 places, 280 transitions, 577 flow. Second operand 10 states and 2852 transitions. [2024-10-14 17:15:25,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 331 transitions, 885 flow [2024-10-14 17:15:25,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 331 transitions, 885 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:15:25,750 INFO L231 Difference]: Finished difference. Result has 292 places, 305 transitions, 769 flow [2024-10-14 17:15:25,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=769, PETRI_PLACES=292, PETRI_TRANSITIONS=305} [2024-10-14 17:15:25,750 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-10-14 17:15:25,751 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 305 transitions, 769 flow [2024-10-14 17:15:25,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 280.14285714285717) internal successors, (1961), 7 states have internal predecessors, (1961), 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) [2024-10-14 17:15:25,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:25,752 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:25,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 17:15:25,752 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:25,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:25,752 INFO L85 PathProgramCache]: Analyzing trace with hash 172631913, now seen corresponding path program 1 times [2024-10-14 17:15:25,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:25,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036960745] [2024-10-14 17:15:25,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:25,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:25,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:25,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:25,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036960745] [2024-10-14 17:15:25,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036960745] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:25,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:25,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:25,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658883172] [2024-10-14 17:15:25,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:25,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:25,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:25,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:25,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:25,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 344 [2024-10-14 17:15:25,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 305 transitions, 769 flow. Second operand has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 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) [2024-10-14 17:15:25,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:25,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 344 [2024-10-14 17:15:25,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:25,901 INFO L124 PetriNetUnfolderBase]: 81/937 cut-off events. [2024-10-14 17:15:25,902 INFO L125 PetriNetUnfolderBase]: For 73/75 co-relation queries the response was YES. [2024-10-14 17:15:25,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1229 conditions, 937 events. 81/937 cut-off events. For 73/75 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3505 event pairs, 30 based on Foata normal form. 0/887 useless extension candidates. Maximal degree in co-relation 1189. Up to 112 conditions per place. [2024-10-14 17:15:25,905 INFO L140 encePairwiseOnDemand]: 342/344 looper letters, 11 selfloop transitions, 1 changer transitions 0/304 dead transitions. [2024-10-14 17:15:25,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 304 transitions, 791 flow [2024-10-14 17:15:25,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:25,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:25,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 930 transitions. [2024-10-14 17:15:25,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9011627906976745 [2024-10-14 17:15:25,907 INFO L175 Difference]: Start difference. First operand has 292 places, 305 transitions, 769 flow. Second operand 3 states and 930 transitions. [2024-10-14 17:15:25,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 304 transitions, 791 flow [2024-10-14 17:15:25,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 304 transitions, 791 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:15:25,915 INFO L231 Difference]: Finished difference. Result has 293 places, 304 transitions, 769 flow [2024-10-14 17:15:25,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=769, PETRI_PLACES=293, PETRI_TRANSITIONS=304} [2024-10-14 17:15:25,916 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -22 predicate places. [2024-10-14 17:15:25,916 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 304 transitions, 769 flow [2024-10-14 17:15:25,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.6666666666667) internal successors, (926), 3 states have internal predecessors, (926), 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) [2024-10-14 17:15:25,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:25,921 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:25,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 17:15:25,921 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:25,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:25,921 INFO L85 PathProgramCache]: Analyzing trace with hash 34836619, now seen corresponding path program 1 times [2024-10-14 17:15:25,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:25,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303074782] [2024-10-14 17:15:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:25,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:15:26,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:26,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303074782] [2024-10-14 17:15:26,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303074782] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:26,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:26,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:26,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218350598] [2024-10-14 17:15:26,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:26,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:26,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:26,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:26,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:26,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-10-14 17:15:26,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 304 transitions, 769 flow. Second operand has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 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) [2024-10-14 17:15:26,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:26,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-10-14 17:15:26,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:26,310 INFO L124 PetriNetUnfolderBase]: 128/1063 cut-off events. [2024-10-14 17:15:26,313 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-10-14 17:15:26,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1461 conditions, 1063 events. 128/1063 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4499 event pairs, 37 based on Foata normal form. 4/1009 useless extension candidates. Maximal degree in co-relation 1424. Up to 136 conditions per place. [2024-10-14 17:15:26,322 INFO L140 encePairwiseOnDemand]: 339/344 looper letters, 15 selfloop transitions, 2 changer transitions 28/307 dead transitions. [2024-10-14 17:15:26,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 307 transitions, 817 flow [2024-10-14 17:15:26,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:26,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:26,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 926 transitions. [2024-10-14 17:15:26,327 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8972868217054264 [2024-10-14 17:15:26,327 INFO L175 Difference]: Start difference. First operand has 293 places, 304 transitions, 769 flow. Second operand 3 states and 926 transitions. [2024-10-14 17:15:26,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 307 transitions, 817 flow [2024-10-14 17:15:26,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 307 transitions, 816 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 17:15:26,332 INFO L231 Difference]: Finished difference. Result has 292 places, 274 transitions, 644 flow [2024-10-14 17:15:26,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=292, PETRI_TRANSITIONS=274} [2024-10-14 17:15:26,336 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-10-14 17:15:26,336 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 274 transitions, 644 flow [2024-10-14 17:15:26,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 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) [2024-10-14 17:15:26,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:26,340 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:26,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 17:15:26,340 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:26,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:26,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1634000130, now seen corresponding path program 1 times [2024-10-14 17:15:26,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:26,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176034049] [2024-10-14 17:15:26,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:26,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:27,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 17:15:27,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:27,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176034049] [2024-10-14 17:15:27,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176034049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:27,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:27,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:15:27,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389552136] [2024-10-14 17:15:27,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:27,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:15:27,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:27,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:15:27,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:15:27,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 344 [2024-10-14 17:15:27,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 274 transitions, 644 flow. Second operand has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 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) [2024-10-14 17:15:27,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:27,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 344 [2024-10-14 17:15:27,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:27,953 INFO L124 PetriNetUnfolderBase]: 228/1362 cut-off events. [2024-10-14 17:15:27,954 INFO L125 PetriNetUnfolderBase]: For 162/169 co-relation queries the response was YES. [2024-10-14 17:15:27,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2020 conditions, 1362 events. 228/1362 cut-off events. For 162/169 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 8198 event pairs, 74 based on Foata normal form. 0/1268 useless extension candidates. Maximal degree in co-relation 1978. Up to 282 conditions per place. [2024-10-14 17:15:27,961 INFO L140 encePairwiseOnDemand]: 336/344 looper letters, 47 selfloop transitions, 10 changer transitions 0/299 dead transitions. [2024-10-14 17:15:27,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 299 transitions, 824 flow [2024-10-14 17:15:27,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:15:27,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:15:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1773 transitions. [2024-10-14 17:15:27,964 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8590116279069767 [2024-10-14 17:15:27,964 INFO L175 Difference]: Start difference. First operand has 292 places, 274 transitions, 644 flow. Second operand 6 states and 1773 transitions. [2024-10-14 17:15:27,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 299 transitions, 824 flow [2024-10-14 17:15:27,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 299 transitions, 768 flow, removed 8 selfloop flow, removed 9 redundant places. [2024-10-14 17:15:27,968 INFO L231 Difference]: Finished difference. Result has 282 places, 283 transitions, 668 flow [2024-10-14 17:15:27,969 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=668, PETRI_PLACES=282, PETRI_TRANSITIONS=283} [2024-10-14 17:15:27,969 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -33 predicate places. [2024-10-14 17:15:27,969 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 283 transitions, 668 flow [2024-10-14 17:15:27,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 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) [2024-10-14 17:15:27,970 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:27,970 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:27,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 17:15:27,971 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:27,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:27,971 INFO L85 PathProgramCache]: Analyzing trace with hash 999190661, now seen corresponding path program 1 times [2024-10-14 17:15:27,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:27,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231358803] [2024-10-14 17:15:27,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:27,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 17:15:28,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:28,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231358803] [2024-10-14 17:15:28,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231358803] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:28,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:28,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:28,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046529755] [2024-10-14 17:15:28,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:28,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:28,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:28,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:28,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:28,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-10-14 17:15:28,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 283 transitions, 668 flow. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 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) [2024-10-14 17:15:28,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:28,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-10-14 17:15:28,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:28,193 INFO L124 PetriNetUnfolderBase]: 254/1386 cut-off events. [2024-10-14 17:15:28,193 INFO L125 PetriNetUnfolderBase]: For 672/672 co-relation queries the response was YES. [2024-10-14 17:15:28,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2298 conditions, 1386 events. 254/1386 cut-off events. For 672/672 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8323 event pairs, 84 based on Foata normal form. 0/1298 useless extension candidates. Maximal degree in co-relation 2260. Up to 265 conditions per place. [2024-10-14 17:15:28,203 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 22 selfloop transitions, 2 changer transitions 0/288 dead transitions. [2024-10-14 17:15:28,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 288 transitions, 738 flow [2024-10-14 17:15:28,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:28,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:28,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 925 transitions. [2024-10-14 17:15:28,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8963178294573644 [2024-10-14 17:15:28,205 INFO L175 Difference]: Start difference. First operand has 282 places, 283 transitions, 668 flow. Second operand 3 states and 925 transitions. [2024-10-14 17:15:28,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 288 transitions, 738 flow [2024-10-14 17:15:28,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 288 transitions, 728 flow, removed 5 selfloop flow, removed 0 redundant places. [2024-10-14 17:15:28,209 INFO L231 Difference]: Finished difference. Result has 283 places, 282 transitions, 662 flow [2024-10-14 17:15:28,210 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=283, PETRI_TRANSITIONS=282} [2024-10-14 17:15:28,210 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-10-14 17:15:28,210 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 282 transitions, 662 flow [2024-10-14 17:15:28,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 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) [2024-10-14 17:15:28,211 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:28,211 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:28,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 17:15:28,211 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:28,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:28,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1211790518, now seen corresponding path program 1 times [2024-10-14 17:15:28,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:28,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379522373] [2024-10-14 17:15:28,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:28,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:28,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 17:15:28,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:28,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379522373] [2024-10-14 17:15:28,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379522373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:28,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:28,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:28,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797870593] [2024-10-14 17:15:28,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:28,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:28,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:28,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:28,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:28,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 344 [2024-10-14 17:15:28,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 282 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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) [2024-10-14 17:15:28,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:28,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 344 [2024-10-14 17:15:28,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:28,394 INFO L124 PetriNetUnfolderBase]: 187/1151 cut-off events. [2024-10-14 17:15:28,395 INFO L125 PetriNetUnfolderBase]: For 407/418 co-relation queries the response was YES. [2024-10-14 17:15:28,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1847 conditions, 1151 events. 187/1151 cut-off events. For 407/418 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6057 event pairs, 4 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 1808. Up to 213 conditions per place. [2024-10-14 17:15:28,400 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 21 selfloop transitions, 7 changer transitions 0/293 dead transitions. [2024-10-14 17:15:28,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 293 transitions, 764 flow [2024-10-14 17:15:28,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:28,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:28,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 935 transitions. [2024-10-14 17:15:28,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9060077519379846 [2024-10-14 17:15:28,402 INFO L175 Difference]: Start difference. First operand has 283 places, 282 transitions, 662 flow. Second operand 3 states and 935 transitions. [2024-10-14 17:15:28,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 293 transitions, 764 flow [2024-10-14 17:15:28,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 293 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:28,406 INFO L231 Difference]: Finished difference. Result has 283 places, 287 transitions, 721 flow [2024-10-14 17:15:28,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=721, PETRI_PLACES=283, PETRI_TRANSITIONS=287} [2024-10-14 17:15:28,406 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-10-14 17:15:28,407 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 287 transitions, 721 flow [2024-10-14 17:15:28,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 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) [2024-10-14 17:15:28,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:28,407 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:28,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 17:15:28,408 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:28,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:28,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2014053489, now seen corresponding path program 1 times [2024-10-14 17:15:28,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:28,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524935406] [2024-10-14 17:15:28,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:28,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:30,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 17:15:30,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:30,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524935406] [2024-10-14 17:15:30,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524935406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:30,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:30,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-10-14 17:15:30,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111402841] [2024-10-14 17:15:30,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:30,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-14 17:15:30,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:30,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-14 17:15:30,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-10-14 17:15:32,097 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 344 [2024-10-14 17:15:32,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 287 transitions, 721 flow. Second operand has 22 states, 22 states have (on average 252.54545454545453) internal successors, (5556), 22 states have internal predecessors, (5556), 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) [2024-10-14 17:15:32,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:32,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 344 [2024-10-14 17:15:32,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:34,020 INFO L124 PetriNetUnfolderBase]: 672/2542 cut-off events. [2024-10-14 17:15:34,021 INFO L125 PetriNetUnfolderBase]: For 915/946 co-relation queries the response was YES. [2024-10-14 17:15:34,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4685 conditions, 2542 events. 672/2542 cut-off events. For 915/946 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 18430 event pairs, 168 based on Foata normal form. 26/2406 useless extension candidates. Maximal degree in co-relation 4642. Up to 363 conditions per place. [2024-10-14 17:15:34,040 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 77 selfloop transitions, 35 changer transitions 0/318 dead transitions. [2024-10-14 17:15:34,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 318 transitions, 1037 flow [2024-10-14 17:15:34,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-14 17:15:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-10-14 17:15:34,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 8098 transitions. [2024-10-14 17:15:34,056 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7356468023255814 [2024-10-14 17:15:34,056 INFO L175 Difference]: Start difference. First operand has 283 places, 287 transitions, 721 flow. Second operand 32 states and 8098 transitions. [2024-10-14 17:15:34,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 318 transitions, 1037 flow [2024-10-14 17:15:34,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 318 transitions, 1037 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-14 17:15:34,063 INFO L231 Difference]: Finished difference. Result has 313 places, 286 transitions, 787 flow [2024-10-14 17:15:34,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=787, PETRI_PLACES=313, PETRI_TRANSITIONS=286} [2024-10-14 17:15:34,064 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -2 predicate places. [2024-10-14 17:15:34,064 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 286 transitions, 787 flow [2024-10-14 17:15:34,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 252.54545454545453) internal successors, (5556), 22 states have internal predecessors, (5556), 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) [2024-10-14 17:15:34,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:34,066 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:34,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 17:15:34,067 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:34,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:34,067 INFO L85 PathProgramCache]: Analyzing trace with hash 336067950, now seen corresponding path program 1 times [2024-10-14 17:15:34,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:34,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658061488] [2024-10-14 17:15:34,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:34,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:34,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 17:15:34,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:34,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658061488] [2024-10-14 17:15:34,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658061488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:34,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:34,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 17:15:34,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856160795] [2024-10-14 17:15:34,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:34,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 17:15:34,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:34,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 17:15:34,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-14 17:15:34,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 344 [2024-10-14 17:15:34,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 286 transitions, 787 flow. Second operand has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 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) [2024-10-14 17:15:34,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:34,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 344 [2024-10-14 17:15:34,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:35,092 INFO L124 PetriNetUnfolderBase]: 370/1801 cut-off events. [2024-10-14 17:15:35,092 INFO L125 PetriNetUnfolderBase]: For 1458/1466 co-relation queries the response was YES. [2024-10-14 17:15:35,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3466 conditions, 1801 events. 370/1801 cut-off events. For 1458/1466 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 11607 event pairs, 85 based on Foata normal form. 8/1711 useless extension candidates. Maximal degree in co-relation 3425. Up to 413 conditions per place. [2024-10-14 17:15:35,103 INFO L140 encePairwiseOnDemand]: 336/344 looper letters, 56 selfloop transitions, 15 changer transitions 0/315 dead transitions. [2024-10-14 17:15:35,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 315 transitions, 1047 flow [2024-10-14 17:15:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 17:15:35,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 17:15:35,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1773 transitions. [2024-10-14 17:15:35,106 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8590116279069767 [2024-10-14 17:15:35,106 INFO L175 Difference]: Start difference. First operand has 313 places, 286 transitions, 787 flow. Second operand 6 states and 1773 transitions. [2024-10-14 17:15:35,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 315 transitions, 1047 flow [2024-10-14 17:15:35,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 315 transitions, 975 flow, removed 0 selfloop flow, removed 31 redundant places. [2024-10-14 17:15:35,111 INFO L231 Difference]: Finished difference. Result has 292 places, 299 transitions, 869 flow [2024-10-14 17:15:35,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=869, PETRI_PLACES=292, PETRI_TRANSITIONS=299} [2024-10-14 17:15:35,112 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-10-14 17:15:35,112 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 299 transitions, 869 flow [2024-10-14 17:15:35,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 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) [2024-10-14 17:15:35,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:35,113 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:35,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 17:15:35,113 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:35,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:35,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1382227983, now seen corresponding path program 1 times [2024-10-14 17:15:35,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:35,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856183429] [2024-10-14 17:15:35,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:35,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:35,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 17:15:35,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:35,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856183429] [2024-10-14 17:15:35,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856183429] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:35,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:35,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:15:35,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544149531] [2024-10-14 17:15:35,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:35,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:15:35,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:35,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:15:35,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:15:35,178 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-10-14 17:15:35,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 299 transitions, 869 flow. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 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) [2024-10-14 17:15:35,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:35,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-10-14 17:15:35,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:35,369 INFO L124 PetriNetUnfolderBase]: 426/1665 cut-off events. [2024-10-14 17:15:35,369 INFO L125 PetriNetUnfolderBase]: For 3481/3508 co-relation queries the response was YES. [2024-10-14 17:15:35,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3884 conditions, 1665 events. 426/1665 cut-off events. For 3481/3508 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9866 event pairs, 92 based on Foata normal form. 0/1568 useless extension candidates. Maximal degree in co-relation 3840. Up to 429 conditions per place. [2024-10-14 17:15:35,420 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 36 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2024-10-14 17:15:35,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 305 transitions, 987 flow [2024-10-14 17:15:35,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:15:35,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 17:15:35,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 925 transitions. [2024-10-14 17:15:35,424 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8963178294573644 [2024-10-14 17:15:35,424 INFO L175 Difference]: Start difference. First operand has 292 places, 299 transitions, 869 flow. Second operand 3 states and 925 transitions. [2024-10-14 17:15:35,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 305 transitions, 987 flow [2024-10-14 17:15:35,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 305 transitions, 957 flow, removed 15 selfloop flow, removed 0 redundant places. [2024-10-14 17:15:35,430 INFO L231 Difference]: Finished difference. Result has 293 places, 298 transitions, 847 flow [2024-10-14 17:15:35,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=847, PETRI_PLACES=293, PETRI_TRANSITIONS=298} [2024-10-14 17:15:35,430 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -22 predicate places. [2024-10-14 17:15:35,430 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 298 transitions, 847 flow [2024-10-14 17:15:35,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 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) [2024-10-14 17:15:35,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:35,431 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:35,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 17:15:35,431 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:35,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:35,432 INFO L85 PathProgramCache]: Analyzing trace with hash -503447583, now seen corresponding path program 1 times [2024-10-14 17:15:35,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:35,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000231223] [2024-10-14 17:15:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:35,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 17:15:36,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:36,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000231223] [2024-10-14 17:15:36,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000231223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:36,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:36,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 17:15:36,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133766023] [2024-10-14 17:15:36,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:36,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 17:15:36,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:36,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 17:15:36,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:15:37,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 344 [2024-10-14 17:15:37,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 298 transitions, 847 flow. Second operand has 15 states, 15 states have (on average 261.2) internal successors, (3918), 15 states have internal predecessors, (3918), 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) [2024-10-14 17:15:37,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:37,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 344 [2024-10-14 17:15:37,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:38,783 INFO L124 PetriNetUnfolderBase]: 1557/5365 cut-off events. [2024-10-14 17:15:38,783 INFO L125 PetriNetUnfolderBase]: For 5978/6629 co-relation queries the response was YES. [2024-10-14 17:15:38,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11007 conditions, 5365 events. 1557/5365 cut-off events. For 5978/6629 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 44867 event pairs, 286 based on Foata normal form. 148/5032 useless extension candidates. Maximal degree in co-relation 10959. Up to 793 conditions per place. [2024-10-14 17:15:38,815 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 109 selfloop transitions, 58 changer transitions 4/388 dead transitions. [2024-10-14 17:15:38,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 388 transitions, 1728 flow [2024-10-14 17:15:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-14 17:15:38,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-10-14 17:15:38,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 6556 transitions. [2024-10-14 17:15:38,823 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7623255813953488 [2024-10-14 17:15:38,823 INFO L175 Difference]: Start difference. First operand has 293 places, 298 transitions, 847 flow. Second operand 25 states and 6556 transitions. [2024-10-14 17:15:38,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 388 transitions, 1728 flow [2024-10-14 17:15:38,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 388 transitions, 1724 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 17:15:38,831 INFO L231 Difference]: Finished difference. Result has 320 places, 326 transitions, 1258 flow [2024-10-14 17:15:38,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1258, PETRI_PLACES=320, PETRI_TRANSITIONS=326} [2024-10-14 17:15:38,832 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 5 predicate places. [2024-10-14 17:15:38,832 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 326 transitions, 1258 flow [2024-10-14 17:15:38,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 261.2) internal successors, (3918), 15 states have internal predecessors, (3918), 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) [2024-10-14 17:15:38,834 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:38,834 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:38,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 17:15:38,834 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:38,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:38,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1741826335, now seen corresponding path program 2 times [2024-10-14 17:15:38,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:38,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691638598] [2024-10-14 17:15:38,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:38,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-14 17:15:39,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:39,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691638598] [2024-10-14 17:15:39,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691638598] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:15:39,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:15:39,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-14 17:15:39,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074201435] [2024-10-14 17:15:39,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:15:39,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 17:15:39,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:39,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 17:15:39,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 17:15:40,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 344 [2024-10-14 17:15:40,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 326 transitions, 1258 flow. Second operand has 15 states, 15 states have (on average 261.2) internal successors, (3918), 15 states have internal predecessors, (3918), 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) [2024-10-14 17:15:40,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:40,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 344 [2024-10-14 17:15:40,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:42,343 INFO L124 PetriNetUnfolderBase]: 2193/7771 cut-off events. [2024-10-14 17:15:42,344 INFO L125 PetriNetUnfolderBase]: For 13462/14318 co-relation queries the response was YES. [2024-10-14 17:15:42,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17981 conditions, 7771 events. 2193/7771 cut-off events. For 13462/14318 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 74199 event pairs, 418 based on Foata normal form. 188/7281 useless extension candidates. Maximal degree in co-relation 17928. Up to 1834 conditions per place. [2024-10-14 17:15:42,397 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 124 selfloop transitions, 57 changer transitions 0/398 dead transitions. [2024-10-14 17:15:42,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 398 transitions, 2201 flow [2024-10-14 17:15:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-14 17:15:42,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-10-14 17:15:42,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6287 transitions. [2024-10-14 17:15:42,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7615067829457365 [2024-10-14 17:15:42,403 INFO L175 Difference]: Start difference. First operand has 320 places, 326 transitions, 1258 flow. Second operand 24 states and 6287 transitions. [2024-10-14 17:15:42,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 398 transitions, 2201 flow [2024-10-14 17:15:42,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 398 transitions, 2156 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-10-14 17:15:42,418 INFO L231 Difference]: Finished difference. Result has 325 places, 351 transitions, 1631 flow [2024-10-14 17:15:42,419 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=1213, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1631, PETRI_PLACES=325, PETRI_TRANSITIONS=351} [2024-10-14 17:15:42,419 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 10 predicate places. [2024-10-14 17:15:42,419 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 351 transitions, 1631 flow [2024-10-14 17:15:42,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 261.2) internal successors, (3918), 15 states have internal predecessors, (3918), 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) [2024-10-14 17:15:42,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:42,424 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:42,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 17:15:42,424 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:42,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:42,425 INFO L85 PathProgramCache]: Analyzing trace with hash 961056649, now seen corresponding path program 1 times [2024-10-14 17:15:42,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:42,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097313727] [2024-10-14 17:15:42,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:42,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:42,707 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 17:15:42,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:42,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097313727] [2024-10-14 17:15:42,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097313727] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:15:42,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853724972] [2024-10-14 17:15:42,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:42,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:15:42,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:15:42,710 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:15:42,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 17:15:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:42,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 17:15:42,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:15:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 17:15:43,200 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:15:43,492 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 17:15:43,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853724972] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:15:43,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:15:43,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-10-14 17:15:43,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723185181] [2024-10-14 17:15:43,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:15:43,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-14 17:15:43,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:43,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-14 17:15:43,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-10-14 17:15:44,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 344 [2024-10-14 17:15:44,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 351 transitions, 1631 flow. Second operand has 24 states, 24 states have (on average 267.125) internal successors, (6411), 24 states have internal predecessors, (6411), 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) [2024-10-14 17:15:44,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:44,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 344 [2024-10-14 17:15:44,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:47,434 INFO L124 PetriNetUnfolderBase]: 3509/12442 cut-off events. [2024-10-14 17:15:47,435 INFO L125 PetriNetUnfolderBase]: For 19649/24009 co-relation queries the response was YES. [2024-10-14 17:15:47,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30260 conditions, 12442 events. 3509/12442 cut-off events. For 19649/24009 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 125566 event pairs, 1294 based on Foata normal form. 332/12017 useless extension candidates. Maximal degree in co-relation 30204. Up to 3344 conditions per place. [2024-10-14 17:15:47,627 INFO L140 encePairwiseOnDemand]: 302/344 looper letters, 152 selfloop transitions, 90 changer transitions 0/491 dead transitions. [2024-10-14 17:15:47,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 491 transitions, 2906 flow [2024-10-14 17:15:47,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 17:15:47,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-14 17:15:47,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6226 transitions. [2024-10-14 17:15:47,637 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7869059656218402 [2024-10-14 17:15:47,641 INFO L175 Difference]: Start difference. First operand has 325 places, 351 transitions, 1631 flow. Second operand 23 states and 6226 transitions. [2024-10-14 17:15:47,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 491 transitions, 2906 flow [2024-10-14 17:15:47,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 491 transitions, 2785 flow, removed 35 selfloop flow, removed 18 redundant places. [2024-10-14 17:15:47,729 INFO L231 Difference]: Finished difference. Result has 342 places, 411 transitions, 2130 flow [2024-10-14 17:15:47,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=1550, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2130, PETRI_PLACES=342, PETRI_TRANSITIONS=411} [2024-10-14 17:15:47,729 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 27 predicate places. [2024-10-14 17:15:47,729 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 411 transitions, 2130 flow [2024-10-14 17:15:47,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 267.125) internal successors, (6411), 24 states have internal predecessors, (6411), 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) [2024-10-14 17:15:47,735 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:47,735 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:47,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 17:15:47,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:15:47,937 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:47,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:47,937 INFO L85 PathProgramCache]: Analyzing trace with hash -99120851, now seen corresponding path program 1 times [2024-10-14 17:15:47,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:47,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087682943] [2024-10-14 17:15:47,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:47,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:48,321 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 17:15:48,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:48,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087682943] [2024-10-14 17:15:48,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087682943] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:15:48,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079492386] [2024-10-14 17:15:48,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:48,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:15:48,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:15:48,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:15:48,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 17:15:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:48,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 17:15:48,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:15:48,865 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 17:15:48,865 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:15:49,201 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 17:15:49,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079492386] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:15:49,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:15:49,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-10-14 17:15:49,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326560582] [2024-10-14 17:15:49,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:15:49,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-14 17:15:49,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:15:49,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-14 17:15:49,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-10-14 17:15:50,301 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 344 [2024-10-14 17:15:50,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 411 transitions, 2130 flow. Second operand has 24 states, 24 states have (on average 267.0833333333333) internal successors, (6410), 24 states have internal predecessors, (6410), 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) [2024-10-14 17:15:50,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 17:15:50,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 344 [2024-10-14 17:15:50,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 17:15:52,852 INFO L124 PetriNetUnfolderBase]: 2135/10074 cut-off events. [2024-10-14 17:15:52,852 INFO L125 PetriNetUnfolderBase]: For 20714/20996 co-relation queries the response was YES. [2024-10-14 17:15:52,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26728 conditions, 10074 events. 2135/10074 cut-off events. For 20714/20996 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 97286 event pairs, 709 based on Foata normal form. 80/9770 useless extension candidates. Maximal degree in co-relation 26656. Up to 1606 conditions per place. [2024-10-14 17:15:52,933 INFO L140 encePairwiseOnDemand]: 302/344 looper letters, 92 selfloop transitions, 44 changer transitions 148/524 dead transitions. [2024-10-14 17:15:52,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 524 transitions, 3543 flow [2024-10-14 17:15:52,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 17:15:52,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-14 17:15:52,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6238 transitions. [2024-10-14 17:15:52,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.788422649140546 [2024-10-14 17:15:52,940 INFO L175 Difference]: Start difference. First operand has 342 places, 411 transitions, 2130 flow. Second operand 23 states and 6238 transitions. [2024-10-14 17:15:52,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 524 transitions, 3543 flow [2024-10-14 17:15:52,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 524 transitions, 3505 flow, removed 14 selfloop flow, removed 1 redundant places. [2024-10-14 17:15:53,000 INFO L231 Difference]: Finished difference. Result has 368 places, 363 transitions, 1872 flow [2024-10-14 17:15:53,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=2092, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1872, PETRI_PLACES=368, PETRI_TRANSITIONS=363} [2024-10-14 17:15:53,001 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 53 predicate places. [2024-10-14 17:15:53,001 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 363 transitions, 1872 flow [2024-10-14 17:15:53,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 267.0833333333333) internal successors, (6410), 24 states have internal predecessors, (6410), 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) [2024-10-14 17:15:53,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 17:15:53,003 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 17:15:53,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 17:15:53,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-14 17:15:53,206 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-14 17:15:53,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:15:53,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1544387834, now seen corresponding path program 2 times [2024-10-14 17:15:53,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:15:53,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93570063] [2024-10-14 17:15:53,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:15:53,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:15:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:15:55,330 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-14 17:15:55,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:15:55,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93570063] [2024-10-14 17:15:55,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93570063] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:15:55,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799175124] [2024-10-14 17:15:55,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 17:15:55,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:15:55,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:15:55,333 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:15:55,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 17:15:55,508 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 17:15:55,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 17:15:55,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-10-14 17:15:55,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:15:55,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-14 17:15:55,989 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-14 17:15:55,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-10-14 17:15:56,535 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-10-14 17:15:56,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-10-14 17:15:57,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-14 17:15:57,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-14 17:15:57,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-10-14 17:15:57,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2024-10-14 17:15:57,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:15:57,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:15:57,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:15:57,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-14 17:15:57,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 31 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 138 [2024-10-14 17:15:57,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 104 [2024-10-14 17:15:57,903 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-14 17:15:57,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:16:29,489 INFO L349 Elim1Store]: treesize reduction 1170, result has 8.1 percent of original size [2024-10-14 17:16:29,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 165 [2024-10-14 17:16:29,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 3 [2024-10-14 17:16:29,499 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:16:29,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 151 treesize of output 141 [2024-10-14 17:16:29,513 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:16:29,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 17 [2024-10-14 17:16:29,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-14 17:16:29,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 116 treesize of output 323 [2024-10-14 17:16:29,676 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-14 17:16:29,725 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-10-14 17:16:29,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 150 treesize of output 1 [2024-10-14 17:16:29,728 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-14 17:16:29,770 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-10-14 17:16:29,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 151 treesize of output 1 [2024-10-14 17:16:29,773 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-14 17:16:29,814 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-10-14 17:16:29,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 151 treesize of output 1 [2024-10-14 17:16:42,547 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 4 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-14 17:16:42,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799175124] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:16:42,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:16:42,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 35, 18] total 74 [2024-10-14 17:16:42,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481707042] [2024-10-14 17:16:42,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:16:42,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-10-14 17:16:42,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:16:42,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-10-14 17:16:42,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=5159, Unknown=46, NotChecked=0, Total=5550 [2024-10-14 17:16:49,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]