./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 a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/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-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 10:00:51,162 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 10:00:51,226 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 10:00:51,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 10:00:51,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 10:00:51,262 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 10:00:51,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 10:00:51,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 10:00:51,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 10:00:51,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 10:00:51,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 10:00:51,267 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 10:00:51,267 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 10:00:51,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 10:00:51,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 10:00:51,269 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 10:00:51,269 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 10:00:51,269 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 10:00:51,270 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 10:00:51,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 10:00:51,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 10:00:51,274 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 10:00:51,274 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 10:00:51,274 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 10:00:51,275 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 10:00:51,275 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 10:00:51,275 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 10:00:51,275 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 10:00:51,275 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 10:00:51,275 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 10:00:51,276 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 10:00:51,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:00:51,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 10:00:51,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 10:00:51,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 10:00:51,276 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 10:00:51,277 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 10:00:51,277 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 10:00:51,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 10:00:51,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 10:00:51,277 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 10:00:51,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d27b7f98ac68d2da6120346c107c87df7f6f708200f0d5d2c806741122116e [2024-10-13 10:00:51,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 10:00:51,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 10:00:51,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 10:00:51,514 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 10:00:51,516 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 10:00:51,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-10-13 10:00:53,046 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 10:00:53,228 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 10:00:53,229 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-three-array-sum.wvr.c [2024-10-13 10:00:53,238 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/899ddac7e/08d6001ac0374ab8acf1061d23c5bbce/FLAGa45012365 [2024-10-13 10:00:53,251 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/899ddac7e/08d6001ac0374ab8acf1061d23c5bbce [2024-10-13 10:00:53,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 10:00:53,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 10:00:53,256 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 10:00:53,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 10:00:53,262 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 10:00:53,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c604f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53, skipping insertion in model container [2024-10-13 10:00:53,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,284 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 10:00:53,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:00:53,521 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 10:00:53,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:00:53,562 INFO L204 MainTranslator]: Completed translation [2024-10-13 10:00:53,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53 WrapperNode [2024-10-13 10:00:53,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 10:00:53,563 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 10:00:53,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 10:00:53,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 10:00:53,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,584 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,612 INFO L138 Inliner]: procedures = 25, calls = 30, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 189 [2024-10-13 10:00:53,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 10:00:53,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 10:00:53,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 10:00:53,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 10:00:53,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,632 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,635 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 10:00:53,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 10:00:53,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 10:00:53,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 10:00:53,648 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53" (1/1) ... [2024-10-13 10:00:53,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:00:53,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:00:53,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 10:00:53,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 10:00:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 10:00:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-13 10:00:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-13 10:00:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-13 10:00:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-13 10:00:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-13 10:00:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-13 10:00:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 10:00:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 10:00:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 10:00:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 10:00:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 10:00:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 10:00:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 10:00:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 10:00:53,733 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 10:00:53,835 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 10:00:53,837 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 10:00:54,263 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 10:00:54,263 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 10:00:54,401 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 10:00:54,402 INFO L314 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-13 10:00:54,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:00:54 BoogieIcfgContainer [2024-10-13 10:00:54,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 10:00:54,404 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 10:00:54,404 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 10:00:54,407 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 10:00:54,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:00:53" (1/3) ... [2024-10-13 10:00:54,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a288220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:00:54, skipping insertion in model container [2024-10-13 10:00:54,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:00:53" (2/3) ... [2024-10-13 10:00:54,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a288220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:00:54, skipping insertion in model container [2024-10-13 10:00:54,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:00:54" (3/3) ... [2024-10-13 10:00:54,409 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2024-10-13 10:00:54,423 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 10:00:54,424 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2024-10-13 10:00:54,424 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 10:00:54,503 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-13 10:00:54,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 344 transitions, 709 flow [2024-10-13 10:00:54,705 INFO L124 PetriNetUnfolderBase]: 20/341 cut-off events. [2024-10-13 10:00:54,706 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-13 10:00:54,716 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. [2024-10-13 10:00:54,717 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 344 transitions, 709 flow [2024-10-13 10:00:54,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 315 places, 324 transitions, 666 flow [2024-10-13 10:00:54,738 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 10:00:54,746 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;@6ff191a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 10:00:54,747 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-10-13 10:00:54,754 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 10:00:54,756 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-10-13 10:00:54,756 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 10:00:54,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:00:54,757 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] [2024-10-13 10:00:54,757 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)] === [2024-10-13 10:00:54,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:00:54,764 INFO L85 PathProgramCache]: Analyzing trace with hash 335780089, now seen corresponding path program 1 times [2024-10-13 10:00:54,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:00:54,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679176589] [2024-10-13 10:00:54,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:00:54,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:00:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:00:54,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:00:54,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:00:54,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679176589] [2024-10-13 10:00:54,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679176589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:00:54,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:00:54,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:00:54,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145171982] [2024-10-13 10:00:54,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:00:54,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:00:54,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:00:54,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:00:54,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:00:55,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 344 [2024-10-13 10:00:55,026 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) [2024-10-13 10:00:55,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:00:55,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 344 [2024-10-13 10:00:55,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:00:55,200 INFO L124 PetriNetUnfolderBase]: 85/884 cut-off events. [2024-10-13 10:00:55,200 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-10-13 10:00:55,207 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. [2024-10-13 10:00:55,211 INFO L140 encePairwiseOnDemand]: 317/344 looper letters, 18 selfloop transitions, 2 changer transitions 6/299 dead transitions. [2024-10-13 10:00:55,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 299 transitions, 656 flow [2024-10-13 10:00:55,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:00:55,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:00:55,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 933 transitions. [2024-10-13 10:00:55,226 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9040697674418605 [2024-10-13 10:00:55,227 INFO L175 Difference]: Start difference. First operand has 315 places, 324 transitions, 666 flow. Second operand 3 states and 933 transitions. [2024-10-13 10:00:55,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 299 transitions, 656 flow [2024-10-13 10:00:55,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 299 transitions, 644 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-13 10:00:55,237 INFO L231 Difference]: Finished difference. Result has 298 places, 293 transitions, 596 flow [2024-10-13 10:00:55,238 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} [2024-10-13 10:00:55,241 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -17 predicate places. [2024-10-13 10:00:55,242 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 293 transitions, 596 flow [2024-10-13 10:00:55,242 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) [2024-10-13 10:00:55,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:00:55,243 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] [2024-10-13 10:00:55,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 10:00:55,243 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)] === [2024-10-13 10:00:55,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:00:55,244 INFO L85 PathProgramCache]: Analyzing trace with hash -948979931, now seen corresponding path program 1 times [2024-10-13 10:00:55,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:00:55,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867950829] [2024-10-13 10:00:55,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:00:55,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:00:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:00:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:00:55,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:00:55,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867950829] [2024-10-13 10:00:55,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867950829] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:00:55,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:00:55,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:00:55,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513924730] [2024-10-13 10:00:55,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:00:55,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:00:55,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:00:55,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:00:55,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:00:55,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 344 [2024-10-13 10:00:55,394 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) [2024-10-13 10:00:55,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:00:55,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 344 [2024-10-13 10:00:55,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:00:55,632 INFO L124 PetriNetUnfolderBase]: 213/995 cut-off events. [2024-10-13 10:00:55,633 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-10-13 10:00:55,638 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. [2024-10-13 10:00:55,647 INFO L140 encePairwiseOnDemand]: 337/344 looper letters, 21 selfloop transitions, 1 changer transitions 0/287 dead transitions. [2024-10-13 10:00:55,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 287 transitions, 628 flow [2024-10-13 10:00:55,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:00:55,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:00:55,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2024-10-13 10:00:55,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8701550387596899 [2024-10-13 10:00:55,651 INFO L175 Difference]: Start difference. First operand has 298 places, 293 transitions, 596 flow. Second operand 3 states and 898 transitions. [2024-10-13 10:00:55,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 287 transitions, 628 flow [2024-10-13 10:00:55,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 287 transitions, 624 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:00:55,656 INFO L231 Difference]: Finished difference. Result has 286 places, 287 transitions, 582 flow [2024-10-13 10:00:55,656 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} [2024-10-13 10:00:55,657 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -29 predicate places. [2024-10-13 10:00:55,657 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 287 transitions, 582 flow [2024-10-13 10:00:55,658 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) [2024-10-13 10:00:55,658 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:00:55,658 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] [2024-10-13 10:00:55,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 10:00:55,658 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)] === [2024-10-13 10:00:55,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:00:55,659 INFO L85 PathProgramCache]: Analyzing trace with hash 785090757, now seen corresponding path program 1 times [2024-10-13 10:00:55,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:00:55,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415157274] [2024-10-13 10:00:55,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:00:55,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:00:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:00:56,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:00:56,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:00:56,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415157274] [2024-10-13 10:00:56,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415157274] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:00:56,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:00:56,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:00:56,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344643476] [2024-10-13 10:00:56,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:00:56,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:00:56,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:00:56,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:00:56,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:00:56,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 344 [2024-10-13 10:00:56,528 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) [2024-10-13 10:00:56,529 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:00:56,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 344 [2024-10-13 10:00:56,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:00:56,706 INFO L124 PetriNetUnfolderBase]: 157/944 cut-off events. [2024-10-13 10:00:56,707 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-10-13 10:00:56,709 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. [2024-10-13 10:00:56,712 INFO L140 encePairwiseOnDemand]: 326/344 looper letters, 41 selfloop transitions, 15 changer transitions 0/284 dead transitions. [2024-10-13 10:00:56,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 284 transitions, 688 flow [2024-10-13 10:00:56,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:00:56,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:00:56,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1613 transitions. [2024-10-13 10:00:56,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7814922480620154 [2024-10-13 10:00:56,716 INFO L175 Difference]: Start difference. First operand has 286 places, 287 transitions, 582 flow. Second operand 6 states and 1613 transitions. [2024-10-13 10:00:56,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 284 transitions, 688 flow [2024-10-13 10:00:56,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 284 transitions, 687 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 10:00:56,719 INFO L231 Difference]: Finished difference. Result has 287 places, 284 transitions, 605 flow [2024-10-13 10:00:56,720 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} [2024-10-13 10:00:56,721 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -28 predicate places. [2024-10-13 10:00:56,721 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 284 transitions, 605 flow [2024-10-13 10:00:56,723 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) [2024-10-13 10:00:56,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:00:56,723 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] [2024-10-13 10:00:56,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 10:00:56,723 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)] === [2024-10-13 10:00:56,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:00:56,724 INFO L85 PathProgramCache]: Analyzing trace with hash 82838698, now seen corresponding path program 1 times [2024-10-13 10:00:56,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:00:56,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895376456] [2024-10-13 10:00:56,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:00:56,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:00:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:00:56,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:00:56,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:00:56,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895376456] [2024-10-13 10:00:56,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895376456] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:00:56,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:00:56,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:00:56,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185110435] [2024-10-13 10:00:56,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:00:56,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:00:56,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:00:56,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:00:56,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:00:56,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 344 [2024-10-13 10:00:56,773 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) [2024-10-13 10:00:56,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:00:56,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 344 [2024-10-13 10:00:56,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:00:56,856 INFO L124 PetriNetUnfolderBase]: 45/439 cut-off events. [2024-10-13 10:00:56,856 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-13 10:00:56,857 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. [2024-10-13 10:00:56,858 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 13 selfloop transitions, 2 changer transitions 0/283 dead transitions. [2024-10-13 10:00:56,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 283 transitions, 633 flow [2024-10-13 10:00:56,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:00:56,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:00:56,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2024-10-13 10:00:56,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8905038759689923 [2024-10-13 10:00:56,861 INFO L175 Difference]: Start difference. First operand has 287 places, 284 transitions, 605 flow. Second operand 3 states and 919 transitions. [2024-10-13 10:00:56,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 283 transitions, 633 flow [2024-10-13 10:00:56,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 283 transitions, 603 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 10:00:56,865 INFO L231 Difference]: Finished difference. Result has 283 places, 283 transitions, 577 flow [2024-10-13 10:00:56,865 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} [2024-10-13 10:00:56,866 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-10-13 10:00:56,867 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 283 transitions, 577 flow [2024-10-13 10:00:56,868 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) [2024-10-13 10:00:56,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:00:56,868 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] [2024-10-13 10:00:56,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 10:00:56,869 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)] === [2024-10-13 10:00:56,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:00:56,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1979469290, now seen corresponding path program 1 times [2024-10-13 10:00:56,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:00:56,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672743618] [2024-10-13 10:00:56,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:00:56,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:00:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:00:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:00:56,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:00:56,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672743618] [2024-10-13 10:00:56,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672743618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:00:56,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:00:56,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:00:56,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430816837] [2024-10-13 10:00:56,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:00:56,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:00:56,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:00:56,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:00:56,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:00:56,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 344 [2024-10-13 10:00:56,922 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) [2024-10-13 10:00:56,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:00:56,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 344 [2024-10-13 10:00:56,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:00:57,001 INFO L124 PetriNetUnfolderBase]: 45/438 cut-off events. [2024-10-13 10:00:57,002 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-13 10:00:57,002 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. [2024-10-13 10:00:57,004 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 13 selfloop transitions, 2 changer transitions 0/282 dead transitions. [2024-10-13 10:00:57,004 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 282 transitions, 605 flow [2024-10-13 10:00:57,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:00:57,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:00:57,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2024-10-13 10:00:57,006 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8905038759689923 [2024-10-13 10:00:57,006 INFO L175 Difference]: Start difference. First operand has 283 places, 283 transitions, 577 flow. Second operand 3 states and 919 transitions. [2024-10-13 10:00:57,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 282 transitions, 605 flow [2024-10-13 10:00:57,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 282 transitions, 601 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:00:57,009 INFO L231 Difference]: Finished difference. Result has 282 places, 282 transitions, 575 flow [2024-10-13 10:00:57,010 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} [2024-10-13 10:00:57,011 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -33 predicate places. [2024-10-13 10:00:57,012 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 282 transitions, 575 flow [2024-10-13 10:00:57,013 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) [2024-10-13 10:00:57,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:00:57,013 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] [2024-10-13 10:00:57,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 10:00:57,013 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)] === [2024-10-13 10:00:57,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:00:57,014 INFO L85 PathProgramCache]: Analyzing trace with hash -166747507, now seen corresponding path program 1 times [2024-10-13 10:00:57,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:00:57,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839889906] [2024-10-13 10:00:57,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:00:57,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:00:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:00:57,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:00:57,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:00:57,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839889906] [2024-10-13 10:00:57,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839889906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:00:57,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:00:57,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:00:57,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919054331] [2024-10-13 10:00:57,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:00:57,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:00:57,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:00:57,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:00:57,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:00:57,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-10-13 10:00:57,088 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) [2024-10-13 10:00:57,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:00:57,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-10-13 10:00:57,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:00:57,146 INFO L124 PetriNetUnfolderBase]: 28/352 cut-off events. [2024-10-13 10:00:57,147 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-13 10:00:57,147 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. [2024-10-13 10:00:57,148 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 12 selfloop transitions, 2 changer transitions 0/281 dead transitions. [2024-10-13 10:00:57,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 281 transitions, 601 flow [2024-10-13 10:00:57,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:00:57,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:00:57,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2024-10-13 10:00:57,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8924418604651163 [2024-10-13 10:00:57,150 INFO L175 Difference]: Start difference. First operand has 282 places, 282 transitions, 575 flow. Second operand 3 states and 921 transitions. [2024-10-13 10:00:57,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 281 transitions, 601 flow [2024-10-13 10:00:57,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 281 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:00:57,154 INFO L231 Difference]: Finished difference. Result has 281 places, 281 transitions, 573 flow [2024-10-13 10:00:57,154 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} [2024-10-13 10:00:57,154 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -34 predicate places. [2024-10-13 10:00:57,155 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 281 transitions, 573 flow [2024-10-13 10:00:57,155 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) [2024-10-13 10:00:57,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:00:57,155 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] [2024-10-13 10:00:57,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 10:00:57,156 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:00:57,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:00:57,156 INFO L85 PathProgramCache]: Analyzing trace with hash 2088733689, now seen corresponding path program 1 times [2024-10-13 10:00:57,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:00:57,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627127566] [2024-10-13 10:00:57,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:00:57,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:00:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:00:57,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:00:57,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:00:57,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627127566] [2024-10-13 10:00:57,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627127566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:00:57,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:00:57,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:00:57,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461896159] [2024-10-13 10:00:57,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:00:57,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:00:57,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:00:57,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:00:57,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:00:57,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-10-13 10:00:57,214 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) [2024-10-13 10:00:57,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:00:57,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-10-13 10:00:57,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:00:57,317 INFO L124 PetriNetUnfolderBase]: 84/726 cut-off events. [2024-10-13 10:00:57,317 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-10-13 10:00:57,319 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. [2024-10-13 10:00:57,320 INFO L140 encePairwiseOnDemand]: 339/344 looper letters, 16 selfloop transitions, 3 changer transitions 0/284 dead transitions. [2024-10-13 10:00:57,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 284 transitions, 619 flow [2024-10-13 10:00:57,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:00:57,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:00:57,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 927 transitions. [2024-10-13 10:00:57,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8982558139534884 [2024-10-13 10:00:57,323 INFO L175 Difference]: Start difference. First operand has 281 places, 281 transitions, 573 flow. Second operand 3 states and 927 transitions. [2024-10-13 10:00:57,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 284 transitions, 619 flow [2024-10-13 10:00:57,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 284 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:00:57,326 INFO L231 Difference]: Finished difference. Result has 279 places, 279 transitions, 571 flow [2024-10-13 10:00:57,326 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} [2024-10-13 10:00:57,327 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -36 predicate places. [2024-10-13 10:00:57,327 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 279 transitions, 571 flow [2024-10-13 10:00:57,328 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) [2024-10-13 10:00:57,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:00:57,328 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] [2024-10-13 10:00:57,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 10:00:57,328 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:00:57,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:00:57,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1523378363, now seen corresponding path program 1 times [2024-10-13 10:00:57,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:00:57,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042662103] [2024-10-13 10:00:57,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:00:57,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:00:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:00:57,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:00:57,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:00:57,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042662103] [2024-10-13 10:00:57,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042662103] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:00:57,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:00:57,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:00:57,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412548064] [2024-10-13 10:00:57,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:00:57,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:00:57,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:00:57,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:00:57,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:00:57,386 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 344 [2024-10-13 10:00:57,387 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) [2024-10-13 10:00:57,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:00:57,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 344 [2024-10-13 10:00:57,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:00:57,559 INFO L124 PetriNetUnfolderBase]: 76/765 cut-off events. [2024-10-13 10:00:57,560 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-10-13 10:00:57,563 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. [2024-10-13 10:00:57,568 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 19 selfloop transitions, 2 changer transitions 0/287 dead transitions. [2024-10-13 10:00:57,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 287 transitions, 634 flow [2024-10-13 10:00:57,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:00:57,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:00:57,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions. [2024-10-13 10:00:57,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9079457364341085 [2024-10-13 10:00:57,570 INFO L175 Difference]: Start difference. First operand has 279 places, 279 transitions, 571 flow. Second operand 3 states and 937 transitions. [2024-10-13 10:00:57,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 287 transitions, 634 flow [2024-10-13 10:00:57,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 287 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:00:57,580 INFO L231 Difference]: Finished difference. Result has 279 places, 280 transitions, 577 flow [2024-10-13 10:00:57,583 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} [2024-10-13 10:00:57,584 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -36 predicate places. [2024-10-13 10:00:57,584 INFO L471 AbstractCegarLoop]: Abstraction has has 279 places, 280 transitions, 577 flow [2024-10-13 10:00:57,584 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) [2024-10-13 10:00:57,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:00:57,585 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] [2024-10-13 10:00:57,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 10:00:57,585 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:00:57,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:00:57,589 INFO L85 PathProgramCache]: Analyzing trace with hash -273573217, now seen corresponding path program 1 times [2024-10-13 10:00:57,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:00:57,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849104637] [2024-10-13 10:00:57,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:00:57,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:00:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:00:57,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:00:57,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:00:57,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849104637] [2024-10-13 10:00:57,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849104637] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:00:57,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:00:57,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 10:00:57,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201054912] [2024-10-13 10:00:57,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:00:57,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 10:00:57,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:00:57,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 10:00:57,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 10:00:58,256 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 344 [2024-10-13 10:00:58,258 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) [2024-10-13 10:00:58,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:00:58,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 344 [2024-10-13 10:00:58,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:00:58,709 INFO L124 PetriNetUnfolderBase]: 193/1399 cut-off events. [2024-10-13 10:00:58,709 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2024-10-13 10:00:58,712 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. [2024-10-13 10:00:58,716 INFO L140 encePairwiseOnDemand]: 315/344 looper letters, 52 selfloop transitions, 42 changer transitions 0/331 dead transitions. [2024-10-13 10:00:58,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 331 transitions, 885 flow [2024-10-13 10:00:58,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 10:00:58,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 10:00:58,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2852 transitions. [2024-10-13 10:00:58,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8290697674418605 [2024-10-13 10:00:58,723 INFO L175 Difference]: Start difference. First operand has 279 places, 280 transitions, 577 flow. Second operand 10 states and 2852 transitions. [2024-10-13 10:00:58,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 331 transitions, 885 flow [2024-10-13 10:00:58,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 331 transitions, 885 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:00:58,728 INFO L231 Difference]: Finished difference. Result has 292 places, 305 transitions, 769 flow [2024-10-13 10:00:58,729 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} [2024-10-13 10:00:58,730 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-10-13 10:00:58,730 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 305 transitions, 769 flow [2024-10-13 10:00:58,731 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) [2024-10-13 10:00:58,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:00:58,731 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] [2024-10-13 10:00:58,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 10:00:58,732 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)] === [2024-10-13 10:00:58,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:00:58,734 INFO L85 PathProgramCache]: Analyzing trace with hash 172631913, now seen corresponding path program 1 times [2024-10-13 10:00:58,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:00:58,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161247103] [2024-10-13 10:00:58,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:00:58,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:00:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:00:58,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:00:58,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:00:58,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161247103] [2024-10-13 10:00:58,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161247103] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:00:58,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:00:58,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:00:58,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319943420] [2024-10-13 10:00:58,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:00:58,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:00:58,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:00:58,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:00:58,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:00:58,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 344 [2024-10-13 10:00:58,806 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) [2024-10-13 10:00:58,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:00:58,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 344 [2024-10-13 10:00:58,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:00:58,918 INFO L124 PetriNetUnfolderBase]: 81/937 cut-off events. [2024-10-13 10:00:58,919 INFO L125 PetriNetUnfolderBase]: For 73/75 co-relation queries the response was YES. [2024-10-13 10:00:58,920 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. [2024-10-13 10:00:58,922 INFO L140 encePairwiseOnDemand]: 342/344 looper letters, 11 selfloop transitions, 1 changer transitions 0/304 dead transitions. [2024-10-13 10:00:58,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 304 transitions, 791 flow [2024-10-13 10:00:58,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:00:58,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:00:58,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 930 transitions. [2024-10-13 10:00:58,924 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9011627906976745 [2024-10-13 10:00:58,924 INFO L175 Difference]: Start difference. First operand has 292 places, 305 transitions, 769 flow. Second operand 3 states and 930 transitions. [2024-10-13 10:00:58,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 304 transitions, 791 flow [2024-10-13 10:00:58,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 304 transitions, 791 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:00:58,931 INFO L231 Difference]: Finished difference. Result has 293 places, 304 transitions, 769 flow [2024-10-13 10:00:58,932 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} [2024-10-13 10:00:58,934 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -22 predicate places. [2024-10-13 10:00:58,934 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 304 transitions, 769 flow [2024-10-13 10:00:58,935 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) [2024-10-13 10:00:58,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:00:58,935 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] [2024-10-13 10:00:58,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 10:00:58,935 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)] === [2024-10-13 10:00:58,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:00:58,936 INFO L85 PathProgramCache]: Analyzing trace with hash 34836619, now seen corresponding path program 1 times [2024-10-13 10:00:58,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:00:58,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974934842] [2024-10-13 10:00:58,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:00:58,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:00:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:00:59,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:00:59,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:00:59,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974934842] [2024-10-13 10:00:59,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974934842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:00:59,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:00:59,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:00:59,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434781901] [2024-10-13 10:00:59,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:00:59,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:00:59,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:00:59,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:00:59,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:00:59,019 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-10-13 10:00:59,020 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) [2024-10-13 10:00:59,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:00:59,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-10-13 10:00:59,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:00:59,209 INFO L124 PetriNetUnfolderBase]: 128/1063 cut-off events. [2024-10-13 10:00:59,209 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-10-13 10:00:59,212 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. [2024-10-13 10:00:59,215 INFO L140 encePairwiseOnDemand]: 339/344 looper letters, 15 selfloop transitions, 2 changer transitions 28/307 dead transitions. [2024-10-13 10:00:59,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 307 transitions, 817 flow [2024-10-13 10:00:59,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:00:59,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:00:59,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 926 transitions. [2024-10-13 10:00:59,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8972868217054264 [2024-10-13 10:00:59,218 INFO L175 Difference]: Start difference. First operand has 293 places, 304 transitions, 769 flow. Second operand 3 states and 926 transitions. [2024-10-13 10:00:59,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 307 transitions, 817 flow [2024-10-13 10:00:59,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 307 transitions, 816 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 10:00:59,226 INFO L231 Difference]: Finished difference. Result has 292 places, 274 transitions, 644 flow [2024-10-13 10:00:59,227 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} [2024-10-13 10:00:59,227 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-10-13 10:00:59,227 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 274 transitions, 644 flow [2024-10-13 10:00:59,228 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) [2024-10-13 10:00:59,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:00:59,228 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] [2024-10-13 10:00:59,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 10:00:59,228 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:00:59,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:00:59,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1634000130, now seen corresponding path program 1 times [2024-10-13 10:00:59,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:00:59,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26841269] [2024-10-13 10:00:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:00:59,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:00:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:00:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 10:00:59,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:00:59,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26841269] [2024-10-13 10:00:59,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26841269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:00:59,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:00:59,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:00:59,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431460967] [2024-10-13 10:00:59,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:00:59,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:00:59,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:00:59,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:00:59,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:00:59,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 344 [2024-10-13 10:00:59,926 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) [2024-10-13 10:00:59,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:00:59,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 344 [2024-10-13 10:00:59,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:01:00,411 INFO L124 PetriNetUnfolderBase]: 228/1362 cut-off events. [2024-10-13 10:01:00,412 INFO L125 PetriNetUnfolderBase]: For 162/169 co-relation queries the response was YES. [2024-10-13 10:01:00,414 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. [2024-10-13 10:01:00,417 INFO L140 encePairwiseOnDemand]: 336/344 looper letters, 47 selfloop transitions, 10 changer transitions 0/299 dead transitions. [2024-10-13 10:01:00,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 299 transitions, 824 flow [2024-10-13 10:01:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:01:00,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:01:00,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1773 transitions. [2024-10-13 10:01:00,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8590116279069767 [2024-10-13 10:01:00,420 INFO L175 Difference]: Start difference. First operand has 292 places, 274 transitions, 644 flow. Second operand 6 states and 1773 transitions. [2024-10-13 10:01:00,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 299 transitions, 824 flow [2024-10-13 10:01:00,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 299 transitions, 768 flow, removed 8 selfloop flow, removed 9 redundant places. [2024-10-13 10:01:00,425 INFO L231 Difference]: Finished difference. Result has 282 places, 283 transitions, 668 flow [2024-10-13 10:01:00,425 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} [2024-10-13 10:01:00,425 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -33 predicate places. [2024-10-13 10:01:00,426 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 283 transitions, 668 flow [2024-10-13 10:01:00,426 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) [2024-10-13 10:01:00,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:01:00,427 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] [2024-10-13 10:01:00,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 10:01:00,427 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:01:00,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:01:00,427 INFO L85 PathProgramCache]: Analyzing trace with hash 999190661, now seen corresponding path program 1 times [2024-10-13 10:01:00,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:01:00,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608674853] [2024-10-13 10:01:00,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:01:00,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:01:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:01:00,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 10:01:00,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:01:00,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608674853] [2024-10-13 10:01:00,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608674853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:01:00,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:01:00,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:01:00,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501945852] [2024-10-13 10:01:00,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:01:00,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:01:00,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:01:00,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:01:00,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:01:00,484 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-10-13 10:01:00,485 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) [2024-10-13 10:01:00,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:01:00,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-10-13 10:01:00,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:01:00,660 INFO L124 PetriNetUnfolderBase]: 254/1386 cut-off events. [2024-10-13 10:01:00,661 INFO L125 PetriNetUnfolderBase]: For 672/672 co-relation queries the response was YES. [2024-10-13 10:01:00,664 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. [2024-10-13 10:01:00,668 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 22 selfloop transitions, 2 changer transitions 0/288 dead transitions. [2024-10-13 10:01:00,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 288 transitions, 738 flow [2024-10-13 10:01:00,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:01:00,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:01:00,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 925 transitions. [2024-10-13 10:01:00,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8963178294573644 [2024-10-13 10:01:00,671 INFO L175 Difference]: Start difference. First operand has 282 places, 283 transitions, 668 flow. Second operand 3 states and 925 transitions. [2024-10-13 10:01:00,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 288 transitions, 738 flow [2024-10-13 10:01:00,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 288 transitions, 728 flow, removed 5 selfloop flow, removed 0 redundant places. [2024-10-13 10:01:00,675 INFO L231 Difference]: Finished difference. Result has 283 places, 282 transitions, 662 flow [2024-10-13 10:01:00,675 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} [2024-10-13 10:01:00,675 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-10-13 10:01:00,676 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 282 transitions, 662 flow [2024-10-13 10:01:00,676 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) [2024-10-13 10:01:00,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:01:00,676 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] [2024-10-13 10:01:00,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 10:01:00,677 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:01:00,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:01:00,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1211790518, now seen corresponding path program 1 times [2024-10-13 10:01:00,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:01:00,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086096362] [2024-10-13 10:01:00,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:01:00,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:01:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:01:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 10:01:00,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:01:00,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086096362] [2024-10-13 10:01:00,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086096362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:01:00,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:01:00,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:01:00,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273351070] [2024-10-13 10:01:00,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:01:00,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:01:00,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:01:00,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:01:00,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:01:00,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 344 [2024-10-13 10:01:00,728 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) [2024-10-13 10:01:00,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:01:00,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 344 [2024-10-13 10:01:00,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:01:00,958 INFO L124 PetriNetUnfolderBase]: 187/1151 cut-off events. [2024-10-13 10:01:00,959 INFO L125 PetriNetUnfolderBase]: For 407/418 co-relation queries the response was YES. [2024-10-13 10:01:00,965 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. [2024-10-13 10:01:00,971 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 21 selfloop transitions, 7 changer transitions 0/293 dead transitions. [2024-10-13 10:01:00,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 293 transitions, 764 flow [2024-10-13 10:01:00,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:01:00,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:01:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 935 transitions. [2024-10-13 10:01:00,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9060077519379846 [2024-10-13 10:01:00,975 INFO L175 Difference]: Start difference. First operand has 283 places, 282 transitions, 662 flow. Second operand 3 states and 935 transitions. [2024-10-13 10:01:00,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 293 transitions, 764 flow [2024-10-13 10:01:00,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 293 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:01:00,982 INFO L231 Difference]: Finished difference. Result has 283 places, 287 transitions, 721 flow [2024-10-13 10:01:00,983 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} [2024-10-13 10:01:00,984 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -32 predicate places. [2024-10-13 10:01:00,984 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 287 transitions, 721 flow [2024-10-13 10:01:00,984 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) [2024-10-13 10:01:00,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:01:00,985 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] [2024-10-13 10:01:00,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 10:01:00,985 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:01:00,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:01:00,986 INFO L85 PathProgramCache]: Analyzing trace with hash 2014053489, now seen corresponding path program 1 times [2024-10-13 10:01:00,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:01:00,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153041541] [2024-10-13 10:01:00,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:01:00,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:01:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:01:03,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 10:01:03,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:01:03,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153041541] [2024-10-13 10:01:03,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153041541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:01:03,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:01:03,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-10-13 10:01:03,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595964833] [2024-10-13 10:01:03,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:01:03,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-13 10:01:03,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:01:03,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-13 10:01:03,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-10-13 10:01:05,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 344 [2024-10-13 10:01:05,491 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) [2024-10-13 10:01:05,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:01:05,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 344 [2024-10-13 10:01:05,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:01:07,143 INFO L124 PetriNetUnfolderBase]: 672/2542 cut-off events. [2024-10-13 10:01:07,143 INFO L125 PetriNetUnfolderBase]: For 915/946 co-relation queries the response was YES. [2024-10-13 10:01:07,150 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. [2024-10-13 10:01:07,162 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 77 selfloop transitions, 35 changer transitions 0/318 dead transitions. [2024-10-13 10:01:07,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 318 transitions, 1037 flow [2024-10-13 10:01:07,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-13 10:01:07,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-10-13 10:01:07,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 8098 transitions. [2024-10-13 10:01:07,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7356468023255814 [2024-10-13 10:01:07,173 INFO L175 Difference]: Start difference. First operand has 283 places, 287 transitions, 721 flow. Second operand 32 states and 8098 transitions. [2024-10-13 10:01:07,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 318 transitions, 1037 flow [2024-10-13 10:01:07,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 318 transitions, 1037 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:01:07,180 INFO L231 Difference]: Finished difference. Result has 313 places, 286 transitions, 787 flow [2024-10-13 10:01:07,181 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} [2024-10-13 10:01:07,182 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -2 predicate places. [2024-10-13 10:01:07,182 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 286 transitions, 787 flow [2024-10-13 10:01:07,184 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) [2024-10-13 10:01:07,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:01:07,184 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] [2024-10-13 10:01:07,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 10:01:07,185 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:01:07,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:01:07,185 INFO L85 PathProgramCache]: Analyzing trace with hash 336067950, now seen corresponding path program 1 times [2024-10-13 10:01:07,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:01:07,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656607372] [2024-10-13 10:01:07,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:01:07,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:01:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:01:07,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 10:01:07,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:01:07,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656607372] [2024-10-13 10:01:07,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656607372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:01:07,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:01:07,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:01:07,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505516678] [2024-10-13 10:01:07,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:01:07,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:01:07,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:01:07,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:01:07,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:01:07,699 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 344 [2024-10-13 10:01:07,701 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) [2024-10-13 10:01:07,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:01:07,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 344 [2024-10-13 10:01:07,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:01:08,291 INFO L124 PetriNetUnfolderBase]: 370/1801 cut-off events. [2024-10-13 10:01:08,291 INFO L125 PetriNetUnfolderBase]: For 1458/1466 co-relation queries the response was YES. [2024-10-13 10:01:08,297 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. [2024-10-13 10:01:08,302 INFO L140 encePairwiseOnDemand]: 336/344 looper letters, 56 selfloop transitions, 15 changer transitions 0/315 dead transitions. [2024-10-13 10:01:08,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 315 transitions, 1047 flow [2024-10-13 10:01:08,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:01:08,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:01:08,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1773 transitions. [2024-10-13 10:01:08,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8590116279069767 [2024-10-13 10:01:08,306 INFO L175 Difference]: Start difference. First operand has 313 places, 286 transitions, 787 flow. Second operand 6 states and 1773 transitions. [2024-10-13 10:01:08,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 315 transitions, 1047 flow [2024-10-13 10:01:08,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 315 transitions, 975 flow, removed 0 selfloop flow, removed 31 redundant places. [2024-10-13 10:01:08,311 INFO L231 Difference]: Finished difference. Result has 292 places, 299 transitions, 869 flow [2024-10-13 10:01:08,312 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} [2024-10-13 10:01:08,313 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -23 predicate places. [2024-10-13 10:01:08,313 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 299 transitions, 869 flow [2024-10-13 10:01:08,314 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) [2024-10-13 10:01:08,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:01:08,314 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] [2024-10-13 10:01:08,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 10:01:08,314 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:01:08,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:01:08,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1382227983, now seen corresponding path program 1 times [2024-10-13 10:01:08,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:01:08,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941559417] [2024-10-13 10:01:08,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:01:08,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:01:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:01:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 10:01:08,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:01:08,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941559417] [2024-10-13 10:01:08,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941559417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:01:08,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:01:08,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:01:08,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146129731] [2024-10-13 10:01:08,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:01:08,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:01:08,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:01:08,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:01:08,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:01:08,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 344 [2024-10-13 10:01:08,374 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) [2024-10-13 10:01:08,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:01:08,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 344 [2024-10-13 10:01:08,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:01:08,594 INFO L124 PetriNetUnfolderBase]: 426/1665 cut-off events. [2024-10-13 10:01:08,595 INFO L125 PetriNetUnfolderBase]: For 3481/3508 co-relation queries the response was YES. [2024-10-13 10:01:08,598 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. [2024-10-13 10:01:08,602 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 36 selfloop transitions, 2 changer transitions 0/305 dead transitions. [2024-10-13 10:01:08,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 305 transitions, 987 flow [2024-10-13 10:01:08,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:01:08,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:01:08,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 925 transitions. [2024-10-13 10:01:08,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8963178294573644 [2024-10-13 10:01:08,604 INFO L175 Difference]: Start difference. First operand has 292 places, 299 transitions, 869 flow. Second operand 3 states and 925 transitions. [2024-10-13 10:01:08,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 305 transitions, 987 flow [2024-10-13 10:01:08,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 305 transitions, 957 flow, removed 15 selfloop flow, removed 0 redundant places. [2024-10-13 10:01:08,610 INFO L231 Difference]: Finished difference. Result has 293 places, 298 transitions, 847 flow [2024-10-13 10:01:08,610 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} [2024-10-13 10:01:08,610 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, -22 predicate places. [2024-10-13 10:01:08,610 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 298 transitions, 847 flow [2024-10-13 10:01:08,611 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) [2024-10-13 10:01:08,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:01:08,611 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] [2024-10-13 10:01:08,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 10:01:08,611 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:01:08,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:01:08,611 INFO L85 PathProgramCache]: Analyzing trace with hash -503447583, now seen corresponding path program 1 times [2024-10-13 10:01:08,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:01:08,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640278953] [2024-10-13 10:01:08,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:01:08,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:01:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:01:09,523 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 10:01:09,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:01:09,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640278953] [2024-10-13 10:01:09,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640278953] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:01:09,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:01:09,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 10:01:09,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916338174] [2024-10-13 10:01:09,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:01:09,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 10:01:09,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:01:09,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 10:01:09,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-10-13 10:01:10,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 344 [2024-10-13 10:01:10,867 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) [2024-10-13 10:01:10,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:01:10,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 344 [2024-10-13 10:01:10,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:01:12,436 INFO L124 PetriNetUnfolderBase]: 1557/5365 cut-off events. [2024-10-13 10:01:12,437 INFO L125 PetriNetUnfolderBase]: For 5978/6629 co-relation queries the response was YES. [2024-10-13 10:01:12,457 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. [2024-10-13 10:01:12,473 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 109 selfloop transitions, 58 changer transitions 4/388 dead transitions. [2024-10-13 10:01:12,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 388 transitions, 1728 flow [2024-10-13 10:01:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-13 10:01:12,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-10-13 10:01:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 6556 transitions. [2024-10-13 10:01:12,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7623255813953488 [2024-10-13 10:01:12,482 INFO L175 Difference]: Start difference. First operand has 293 places, 298 transitions, 847 flow. Second operand 25 states and 6556 transitions. [2024-10-13 10:01:12,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 388 transitions, 1728 flow [2024-10-13 10:01:12,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 388 transitions, 1724 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:01:12,491 INFO L231 Difference]: Finished difference. Result has 320 places, 326 transitions, 1258 flow [2024-10-13 10:01:12,491 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} [2024-10-13 10:01:12,492 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 5 predicate places. [2024-10-13 10:01:12,492 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 326 transitions, 1258 flow [2024-10-13 10:01:12,493 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) [2024-10-13 10:01:12,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:01:12,493 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] [2024-10-13 10:01:12,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 10:01:12,493 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:01:12,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:01:12,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1741826335, now seen corresponding path program 2 times [2024-10-13 10:01:12,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:01:12,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058872208] [2024-10-13 10:01:12,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:01:12,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:01:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:01:13,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 10:01:13,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:01:13,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058872208] [2024-10-13 10:01:13,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058872208] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:01:13,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:01:13,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 10:01:13,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268207830] [2024-10-13 10:01:13,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:01:13,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 10:01:13,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:01:13,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 10:01:13,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-13 10:01:14,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 344 [2024-10-13 10:01:14,744 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) [2024-10-13 10:01:14,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:01:14,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 344 [2024-10-13 10:01:14,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:01:16,438 INFO L124 PetriNetUnfolderBase]: 2193/7771 cut-off events. [2024-10-13 10:01:16,438 INFO L125 PetriNetUnfolderBase]: For 13462/14318 co-relation queries the response was YES. [2024-10-13 10:01:16,459 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. [2024-10-13 10:01:16,505 INFO L140 encePairwiseOnDemand]: 312/344 looper letters, 124 selfloop transitions, 57 changer transitions 0/398 dead transitions. [2024-10-13 10:01:16,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 398 transitions, 2201 flow [2024-10-13 10:01:16,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-13 10:01:16,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-10-13 10:01:16,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6287 transitions. [2024-10-13 10:01:16,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7615067829457365 [2024-10-13 10:01:16,518 INFO L175 Difference]: Start difference. First operand has 320 places, 326 transitions, 1258 flow. Second operand 24 states and 6287 transitions. [2024-10-13 10:01:16,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 398 transitions, 2201 flow [2024-10-13 10:01:16,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 398 transitions, 2156 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-10-13 10:01:16,554 INFO L231 Difference]: Finished difference. Result has 325 places, 351 transitions, 1631 flow [2024-10-13 10:01:16,555 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} [2024-10-13 10:01:16,556 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 10 predicate places. [2024-10-13 10:01:16,556 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 351 transitions, 1631 flow [2024-10-13 10:01:16,561 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) [2024-10-13 10:01:16,564 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:01:16,565 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] [2024-10-13 10:01:16,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 10:01:16,565 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:01:16,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:01:16,565 INFO L85 PathProgramCache]: Analyzing trace with hash 961056649, now seen corresponding path program 1 times [2024-10-13 10:01:16,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:01:16,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614076224] [2024-10-13 10:01:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:01:16,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:01:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:01:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 10:01:17,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:01:17,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614076224] [2024-10-13 10:01:17,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614076224] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:01:17,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300336063] [2024-10-13 10:01:17,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:01:17,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:01:17,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:01:17,169 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:01:17,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 10:01:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:01:17,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-13 10:01:17,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:01:17,743 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 10:01:17,743 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:01:18,083 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 10:01:18,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300336063] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:01:18,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 10:01:18,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-10-13 10:01:18,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148938697] [2024-10-13 10:01:18,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 10:01:18,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-13 10:01:18,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:01:18,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-13 10:01:18,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-10-13 10:01:19,187 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 344 [2024-10-13 10:01:19,192 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) [2024-10-13 10:01:19,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:01:19,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 344 [2024-10-13 10:01:19,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:01:22,623 INFO L124 PetriNetUnfolderBase]: 3509/12442 cut-off events. [2024-10-13 10:01:22,624 INFO L125 PetriNetUnfolderBase]: For 19649/24009 co-relation queries the response was YES. [2024-10-13 10:01:22,685 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. [2024-10-13 10:01:22,729 INFO L140 encePairwiseOnDemand]: 302/344 looper letters, 152 selfloop transitions, 90 changer transitions 0/491 dead transitions. [2024-10-13 10:01:22,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 491 transitions, 2906 flow [2024-10-13 10:01:22,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-13 10:01:22,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-13 10:01:22,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6226 transitions. [2024-10-13 10:01:22,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7869059656218402 [2024-10-13 10:01:22,739 INFO L175 Difference]: Start difference. First operand has 325 places, 351 transitions, 1631 flow. Second operand 23 states and 6226 transitions. [2024-10-13 10:01:22,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 491 transitions, 2906 flow [2024-10-13 10:01:22,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 491 transitions, 2785 flow, removed 35 selfloop flow, removed 18 redundant places. [2024-10-13 10:01:22,779 INFO L231 Difference]: Finished difference. Result has 342 places, 411 transitions, 2130 flow [2024-10-13 10:01:22,779 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} [2024-10-13 10:01:22,779 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 27 predicate places. [2024-10-13 10:01:22,779 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 411 transitions, 2130 flow [2024-10-13 10:01:22,782 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) [2024-10-13 10:01:22,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:01:22,782 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] [2024-10-13 10:01:22,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 10:01:22,983 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 [2024-10-13 10:01:22,985 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:01:22,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:01:22,985 INFO L85 PathProgramCache]: Analyzing trace with hash -99120851, now seen corresponding path program 1 times [2024-10-13 10:01:22,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:01:22,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976606500] [2024-10-13 10:01:22,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:01:22,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:01:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:01:23,370 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 10:01:23,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:01:23,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976606500] [2024-10-13 10:01:23,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976606500] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:01:23,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672466830] [2024-10-13 10:01:23,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:01:23,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:01:23,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:01:23,373 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:01:23,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 10:01:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:01:23,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-13 10:01:23,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:01:23,992 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 10:01:23,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:01:24,380 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 10:01:24,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672466830] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:01:24,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 10:01:24,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2024-10-13 10:01:24,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613376143] [2024-10-13 10:01:24,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 10:01:24,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-13 10:01:24,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:01:24,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-13 10:01:24,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-10-13 10:01:25,590 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 344 [2024-10-13 10:01:25,594 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) [2024-10-13 10:01:25,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:01:25,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 344 [2024-10-13 10:01:25,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:01:28,874 INFO L124 PetriNetUnfolderBase]: 2135/10074 cut-off events. [2024-10-13 10:01:28,874 INFO L125 PetriNetUnfolderBase]: For 20714/20996 co-relation queries the response was YES. [2024-10-13 10:01:28,924 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. [2024-10-13 10:01:28,963 INFO L140 encePairwiseOnDemand]: 302/344 looper letters, 92 selfloop transitions, 44 changer transitions 148/524 dead transitions. [2024-10-13 10:01:28,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 524 transitions, 3543 flow [2024-10-13 10:01:28,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-13 10:01:28,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-13 10:01:28,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 6238 transitions. [2024-10-13 10:01:28,976 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.788422649140546 [2024-10-13 10:01:28,979 INFO L175 Difference]: Start difference. First operand has 342 places, 411 transitions, 2130 flow. Second operand 23 states and 6238 transitions. [2024-10-13 10:01:28,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 524 transitions, 3543 flow [2024-10-13 10:01:29,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 524 transitions, 3505 flow, removed 14 selfloop flow, removed 1 redundant places. [2024-10-13 10:01:29,073 INFO L231 Difference]: Finished difference. Result has 368 places, 363 transitions, 1872 flow [2024-10-13 10:01:29,074 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} [2024-10-13 10:01:29,074 INFO L277 CegarLoopForPetriNet]: 315 programPoint places, 53 predicate places. [2024-10-13 10:01:29,075 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 363 transitions, 1872 flow [2024-10-13 10:01:29,076 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) [2024-10-13 10:01:29,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:01:29,076 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] [2024-10-13 10:01:29,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 10:01:29,277 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 [2024-10-13 10:01:29,278 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2024-10-13 10:01:29,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:01:29,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1544387834, now seen corresponding path program 2 times [2024-10-13 10:01:29,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:01:29,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590098486] [2024-10-13 10:01:29,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:01:29,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:01:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:01:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-13 10:01:31,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:01:31,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590098486] [2024-10-13 10:01:31,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590098486] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 10:01:31,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255873796] [2024-10-13 10:01:31,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 10:01:31,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 10:01:31,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:01:31,697 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 10:01:31,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 10:01:31,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 10:01:31,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 10:01:31,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-10-13 10:01:31,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 10:01:31,963 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 [2024-10-13 10:01:32,364 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-13 10:01:32,364 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 [2024-10-13 10:01:32,927 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-10-13 10:01:32,927 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 [2024-10-13 10:01:33,904 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 [2024-10-13 10:01:33,978 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 [2024-10-13 10:01:34,057 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 [2024-10-13 10:01:34,144 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 [2024-10-13 10:01:34,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:01:34,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:01:34,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:01:34,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-13 10:01:34,374 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 [2024-10-13 10:01:34,392 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 [2024-10-13 10:01:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-13 10:01:34,752 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 10:02:01,114 INFO L349 Elim1Store]: treesize reduction 1170, result has 8.1 percent of original size [2024-10-13 10:02:01,114 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 [2024-10-13 10:02:01,125 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 [2024-10-13 10:02:01,142 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:02:01,142 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 [2024-10-13 10:02:01,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:02:01,166 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 [2024-10-13 10:02:01,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 10:02:01,300 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 [2024-10-13 10:02:01,446 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 10:02:01,494 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-10-13 10:02:01,495 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 [2024-10-13 10:02:01,496 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 10:02:01,537 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-10-13 10:02:01,537 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 [2024-10-13 10:02:01,539 INFO L173 IndexEqualityManager]: detected equality via solver [2024-10-13 10:02:01,602 INFO L349 Elim1Store]: treesize reduction 1272, result has 0.1 percent of original size [2024-10-13 10:02:01,602 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 [2024-10-13 10:02:14,229 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 4 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-13 10:02:14,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255873796] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 10:02:14,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 10:02:14,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 35, 18] total 74 [2024-10-13 10:02:14,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021685859] [2024-10-13 10:02:14,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 10:02:14,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-10-13 10:02:14,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:02:14,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-10-13 10:02:14,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=5163, Unknown=42, NotChecked=0, Total=5550 [2024-10-13 10:02:19,965 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]