./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i -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 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:53:50,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:53:50,228 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:53:50,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:53:50,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:53:50,260 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:53:50,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:53:50,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:53:50,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:53:50,262 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:53:50,263 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:53:50,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:53:50,264 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:53:50,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:53:50,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:53:50,267 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:53:50,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:53:50,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:53:50,268 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:53:50,268 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:53:50,268 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:53:50,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:53:50,269 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:53:50,269 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:53:50,269 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:53:50,270 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:53:50,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:53:50,270 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:53:50,271 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:53:50,271 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:53:50,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:53:50,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:53:50,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:53:50,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:53:50,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:53:50,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:53:50,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:53:50,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:53:50,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:53:50,273 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:53:50,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:53:50,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 [2024-11-19 05:53:50,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:53:50,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:53:50,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:53:50,540 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:53:50,540 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:53:50,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i [2024-11-19 05:53:51,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:53:52,127 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:53:52,129 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i [2024-11-19 05:53:52,143 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b586e41f/89c74558e202466fa3f4520a7a2b9959/FLAG27a765383 [2024-11-19 05:53:52,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b586e41f/89c74558e202466fa3f4520a7a2b9959 [2024-11-19 05:53:52,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:53:52,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:53:52,160 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:53:52,160 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:53:52,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:53:52,165 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,166 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cd15cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52, skipping insertion in model container [2024-11-19 05:53:52,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,193 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:53:52,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:53:52,548 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:53:52,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:53:52,637 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:53:52,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52 WrapperNode [2024-11-19 05:53:52,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:53:52,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:53:52,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:53:52,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:53:52,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,676 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-11-19 05:53:52,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:53:52,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:53:52,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:53:52,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:53:52,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,704 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,709 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:53:52,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:53:52,713 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:53:52,713 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:53:52,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52" (1/1) ... [2024-11-19 05:53:52,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:53:52,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:53:52,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:53:52,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:53:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:53:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:53:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:53:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:53:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:53:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:53:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:53:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:53:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:53:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:53:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:53:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:53:52,789 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:53:53,014 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:53:53,017 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:53:53,278 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:53:53,278 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:53:53,310 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:53:53,313 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-19 05:53:53,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:53:53 BoogieIcfgContainer [2024-11-19 05:53:53,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:53:53,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:53:53,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:53:53,318 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:53:53,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:53:52" (1/3) ... [2024-11-19 05:53:53,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ec687b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:53:53, skipping insertion in model container [2024-11-19 05:53:53,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:52" (2/3) ... [2024-11-19 05:53:53,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ec687b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:53:53, skipping insertion in model container [2024-11-19 05:53:53,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:53:53" (3/3) ... [2024-11-19 05:53:53,320 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_36-indirect_racefree.i [2024-11-19 05:53:53,335 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:53:53,335 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-11-19 05:53:53,335 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:53:53,410 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 05:53:53,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 189 transitions, 385 flow [2024-11-19 05:53:53,535 INFO L124 PetriNetUnfolderBase]: 19/256 cut-off events. [2024-11-19 05:53:53,538 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:53:53,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 256 events. 19/256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 785 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 139. Up to 4 conditions per place. [2024-11-19 05:53:53,544 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 189 transitions, 385 flow [2024-11-19 05:53:53,549 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 189 transitions, 385 flow [2024-11-19 05:53:53,563 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:53:53,570 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;@1a40a25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:53:53,570 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-19 05:53:53,575 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:53:53,575 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-19 05:53:53,575 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:53:53,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:53,576 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:53,576 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:53:53,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:53,580 INFO L85 PathProgramCache]: Analyzing trace with hash -593581314, now seen corresponding path program 1 times [2024-11-19 05:53:53,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:53,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121347730] [2024-11-19 05:53:53,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:53,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:53,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:53,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:53,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121347730] [2024-11-19 05:53:53,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121347730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:53,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:53,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:53,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539965842] [2024-11-19 05:53:53,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:53,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:53,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:53,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:53,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:53,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 189 [2024-11-19 05:53:53,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 189 transitions, 385 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:53,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:53,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 189 [2024-11-19 05:53:53,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:53,994 INFO L124 PetriNetUnfolderBase]: 37/641 cut-off events. [2024-11-19 05:53:53,994 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 05:53:53,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 641 events. 37/641 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2909 event pairs, 36 based on Foata normal form. 62/639 useless extension candidates. Maximal degree in co-relation 617. Up to 97 conditions per place. [2024-11-19 05:53:54,002 INFO L140 encePairwiseOnDemand]: 174/189 looper letters, 18 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2024-11-19 05:53:54,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 174 transitions, 395 flow [2024-11-19 05:53:54,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:54,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:54,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2024-11-19 05:53:54,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8783068783068783 [2024-11-19 05:53:54,021 INFO L175 Difference]: Start difference. First operand has 179 places, 189 transitions, 385 flow. Second operand 3 states and 498 transitions. [2024-11-19 05:53:54,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 174 transitions, 395 flow [2024-11-19 05:53:54,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 174 transitions, 395 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:53:54,030 INFO L231 Difference]: Finished difference. Result has 178 places, 174 transitions, 359 flow [2024-11-19 05:53:54,032 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=178, PETRI_TRANSITIONS=174} [2024-11-19 05:53:54,034 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, -1 predicate places. [2024-11-19 05:53:54,037 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 174 transitions, 359 flow [2024-11-19 05:53:54,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:54,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:54,038 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] [2024-11-19 05:53:54,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:53:54,039 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:53:54,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:54,040 INFO L85 PathProgramCache]: Analyzing trace with hash 799022631, now seen corresponding path program 1 times [2024-11-19 05:53:54,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:54,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871677750] [2024-11-19 05:53:54,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:54,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:54,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:54,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:54,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871677750] [2024-11-19 05:53:54,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871677750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:54,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:54,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:54,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905236948] [2024-11-19 05:53:54,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:54,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:54,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:54,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:54,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:54,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 189 [2024-11-19 05:53:54,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 174 transitions, 359 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:54,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:54,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 189 [2024-11-19 05:53:54,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:54,245 INFO L124 PetriNetUnfolderBase]: 37/638 cut-off events. [2024-11-19 05:53:54,245 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 05:53:54,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 638 events. 37/638 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2889 event pairs, 36 based on Foata normal form. 0/579 useless extension candidates. Maximal degree in co-relation 702. Up to 94 conditions per place. [2024-11-19 05:53:54,248 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 16 selfloop transitions, 1 changer transitions 0/172 dead transitions. [2024-11-19 05:53:54,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 172 transitions, 389 flow [2024-11-19 05:53:54,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:54,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:54,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2024-11-19 05:53:54,250 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8641975308641975 [2024-11-19 05:53:54,250 INFO L175 Difference]: Start difference. First operand has 178 places, 174 transitions, 359 flow. Second operand 3 states and 490 transitions. [2024-11-19 05:53:54,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 172 transitions, 389 flow [2024-11-19 05:53:54,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 172 transitions, 385 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:53:54,254 INFO L231 Difference]: Finished difference. Result has 176 places, 172 transitions, 353 flow [2024-11-19 05:53:54,255 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2024-11-19 05:53:54,257 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, -3 predicate places. [2024-11-19 05:53:54,257 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 353 flow [2024-11-19 05:53:54,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:54,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:54,257 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] [2024-11-19 05:53:54,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:53:54,258 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:53:54,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:54,259 INFO L85 PathProgramCache]: Analyzing trace with hash 156834859, now seen corresponding path program 1 times [2024-11-19 05:53:54,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:54,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303026430] [2024-11-19 05:53:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:54,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:54,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:54,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303026430] [2024-11-19 05:53:54,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303026430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:54,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:54,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:54,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125738412] [2024-11-19 05:53:54,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:54,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:54,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:54,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:54,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:54,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 189 [2024-11-19 05:53:54,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:54,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:54,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 189 [2024-11-19 05:53:54,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:54,432 INFO L124 PetriNetUnfolderBase]: 41/579 cut-off events. [2024-11-19 05:53:54,432 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 05:53:54,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 579 events. 41/579 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2572 event pairs, 40 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 654. Up to 104 conditions per place. [2024-11-19 05:53:54,435 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 18 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2024-11-19 05:53:54,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 171 transitions, 391 flow [2024-11-19 05:53:54,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:54,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:54,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 486 transitions. [2024-11-19 05:53:54,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2024-11-19 05:53:54,437 INFO L175 Difference]: Start difference. First operand has 176 places, 172 transitions, 353 flow. Second operand 3 states and 486 transitions. [2024-11-19 05:53:54,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 171 transitions, 391 flow [2024-11-19 05:53:54,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 171 transitions, 390 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:53:54,440 INFO L231 Difference]: Finished difference. Result has 176 places, 171 transitions, 354 flow [2024-11-19 05:53:54,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=176, PETRI_TRANSITIONS=171} [2024-11-19 05:53:54,443 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, -3 predicate places. [2024-11-19 05:53:54,443 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 171 transitions, 354 flow [2024-11-19 05:53:54,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:54,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:54,443 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] [2024-11-19 05:53:54,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:53:54,444 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:53:54,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:54,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1167134520, now seen corresponding path program 1 times [2024-11-19 05:53:54,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:54,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850773464] [2024-11-19 05:53:54,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:54,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:54,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:54,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:54,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850773464] [2024-11-19 05:53:54,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850773464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:54,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:54,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:53:54,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399782009] [2024-11-19 05:53:54,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:54,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:53:54,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:54,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:53:54,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:53:55,054 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 189 [2024-11-19 05:53:55,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 171 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:55,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:55,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 189 [2024-11-19 05:53:55,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:55,537 INFO L124 PetriNetUnfolderBase]: 579/2265 cut-off events. [2024-11-19 05:53:55,538 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 05:53:55,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3527 conditions, 2265 events. 579/2265 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 15926 event pairs, 357 based on Foata normal form. 0/2071 useless extension candidates. Maximal degree in co-relation 3489. Up to 1080 conditions per place. [2024-11-19 05:53:55,550 INFO L140 encePairwiseOnDemand]: 166/189 looper letters, 73 selfloop transitions, 70 changer transitions 0/264 dead transitions. [2024-11-19 05:53:55,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 264 transitions, 826 flow [2024-11-19 05:53:55,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:53:55,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:53:55,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 900 transitions. [2024-11-19 05:53:55,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7936507936507936 [2024-11-19 05:53:55,554 INFO L175 Difference]: Start difference. First operand has 176 places, 171 transitions, 354 flow. Second operand 6 states and 900 transitions. [2024-11-19 05:53:55,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 264 transitions, 826 flow [2024-11-19 05:53:55,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 264 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:53:55,563 INFO L231 Difference]: Finished difference. Result has 184 places, 240 transitions, 812 flow [2024-11-19 05:53:55,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=812, PETRI_PLACES=184, PETRI_TRANSITIONS=240} [2024-11-19 05:53:55,566 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, 5 predicate places. [2024-11-19 05:53:55,566 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 240 transitions, 812 flow [2024-11-19 05:53:55,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:55,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:55,567 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] [2024-11-19 05:53:55,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:53:55,569 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:53:55,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:55,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1082079899, now seen corresponding path program 1 times [2024-11-19 05:53:55,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:55,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933772101] [2024-11-19 05:53:55,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:55,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:55,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:55,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:55,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933772101] [2024-11-19 05:53:55,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933772101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:55,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:55,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:53:55,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520464521] [2024-11-19 05:53:55,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:55,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:55,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:55,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:55,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:55,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 189 [2024-11-19 05:53:55,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 240 transitions, 812 flow. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:55,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:55,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 189 [2024-11-19 05:53:55,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:55,749 INFO L124 PetriNetUnfolderBase]: 188/1122 cut-off events. [2024-11-19 05:53:55,749 INFO L125 PetriNetUnfolderBase]: For 104/107 co-relation queries the response was YES. [2024-11-19 05:53:55,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 1122 events. 188/1122 cut-off events. For 104/107 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6508 event pairs, 28 based on Foata normal form. 1/1044 useless extension candidates. Maximal degree in co-relation 1783. Up to 191 conditions per place. [2024-11-19 05:53:55,755 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 22 selfloop transitions, 3 changer transitions 0/246 dead transitions. [2024-11-19 05:53:55,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 246 transitions, 874 flow [2024-11-19 05:53:55,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:55,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:55,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2024-11-19 05:53:55,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8800705467372134 [2024-11-19 05:53:55,757 INFO L175 Difference]: Start difference. First operand has 184 places, 240 transitions, 812 flow. Second operand 3 states and 499 transitions. [2024-11-19 05:53:55,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 246 transitions, 874 flow [2024-11-19 05:53:55,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 246 transitions, 874 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:53:55,764 INFO L231 Difference]: Finished difference. Result has 187 places, 240 transitions, 823 flow [2024-11-19 05:53:55,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=812, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=187, PETRI_TRANSITIONS=240} [2024-11-19 05:53:55,765 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, 8 predicate places. [2024-11-19 05:53:55,765 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 240 transitions, 823 flow [2024-11-19 05:53:55,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:55,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:55,766 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] [2024-11-19 05:53:55,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:53:55,766 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:53:55,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:55,766 INFO L85 PathProgramCache]: Analyzing trace with hash -158886799, now seen corresponding path program 1 times [2024-11-19 05:53:55,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:55,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848132131] [2024-11-19 05:53:55,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:55,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:55,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:55,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848132131] [2024-11-19 05:53:55,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848132131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:55,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:55,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:55,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313103204] [2024-11-19 05:53:55,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:55,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:55,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:55,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:55,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:55,812 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 189 [2024-11-19 05:53:55,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 240 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:55,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:55,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 189 [2024-11-19 05:53:55,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:56,026 INFO L124 PetriNetUnfolderBase]: 180/1058 cut-off events. [2024-11-19 05:53:56,030 INFO L125 PetriNetUnfolderBase]: For 94/99 co-relation queries the response was YES. [2024-11-19 05:53:56,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1804 conditions, 1058 events. 180/1058 cut-off events. For 94/99 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6175 event pairs, 22 based on Foata normal form. 0/998 useless extension candidates. Maximal degree in co-relation 1761. Up to 253 conditions per place. [2024-11-19 05:53:56,041 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 20 selfloop transitions, 1 changer transitions 0/242 dead transitions. [2024-11-19 05:53:56,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 242 transitions, 869 flow [2024-11-19 05:53:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:56,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:56,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 494 transitions. [2024-11-19 05:53:56,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8712522045855379 [2024-11-19 05:53:56,047 INFO L175 Difference]: Start difference. First operand has 187 places, 240 transitions, 823 flow. Second operand 3 states and 494 transitions. [2024-11-19 05:53:56,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 242 transitions, 869 flow [2024-11-19 05:53:56,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 242 transitions, 863 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:53:56,056 INFO L231 Difference]: Finished difference. Result has 185 places, 238 transitions, 815 flow [2024-11-19 05:53:56,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=815, PETRI_PLACES=185, PETRI_TRANSITIONS=238} [2024-11-19 05:53:56,061 INFO L277 CegarLoopForPetriNet]: 179 programPoint places, 6 predicate places. [2024-11-19 05:53:56,061 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 238 transitions, 815 flow [2024-11-19 05:53:56,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.0) internal successors, (477), 3 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:56,062 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:56,062 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-19 05:53:56,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:53:56,062 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:53:56,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:56,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1545767196, now seen corresponding path program 1 times [2024-11-19 05:53:56,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:56,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642321595] [2024-11-19 05:53:56,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:56,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:53:56,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:53:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:53:56,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:53:56,165 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:53:56,166 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-19 05:53:56,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-19 05:53:56,171 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-19 05:53:56,172 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-19 05:53:56,172 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-19 05:53:56,172 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-19 05:53:56,172 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-19 05:53:56,173 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-19 05:53:56,173 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-19 05:53:56,173 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-19 05:53:56,173 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-19 05:53:56,173 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-19 05:53:56,173 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-19 05:53:56,173 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-19 05:53:56,174 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-19 05:53:56,174 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-19 05:53:56,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-19 05:53:56,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-19 05:53:56,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-19 05:53:56,177 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-19 05:53:56,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:53:56,178 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:56,180 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:53:56,180 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 05:53:56,231 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 05:53:56,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 245 places, 260 transitions, 536 flow [2024-11-19 05:53:56,299 INFO L124 PetriNetUnfolderBase]: 34/422 cut-off events. [2024-11-19 05:53:56,303 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 05:53:56,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 422 events. 34/422 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1618 event pairs, 0 based on Foata normal form. 0/356 useless extension candidates. Maximal degree in co-relation 258. Up to 8 conditions per place. [2024-11-19 05:53:56,312 INFO L82 GeneralOperation]: Start removeDead. Operand has 245 places, 260 transitions, 536 flow [2024-11-19 05:53:56,318 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 260 transitions, 536 flow [2024-11-19 05:53:56,319 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:53:56,324 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;@1a40a25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:53:56,324 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-19 05:53:56,325 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:53:56,325 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-19 05:53:56,325 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:53:56,326 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:56,326 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:56,326 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:53:56,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:56,326 INFO L85 PathProgramCache]: Analyzing trace with hash -834612094, now seen corresponding path program 1 times [2024-11-19 05:53:56,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:56,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449351454] [2024-11-19 05:53:56,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:56,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:56,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:56,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:56,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449351454] [2024-11-19 05:53:56,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449351454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:56,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:56,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:56,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726411979] [2024-11-19 05:53:56,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:56,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:56,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:56,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:56,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:56,385 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 260 [2024-11-19 05:53:56,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 260 transitions, 536 flow. Second operand has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:56,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:56,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 260 [2024-11-19 05:53:56,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:56,953 INFO L124 PetriNetUnfolderBase]: 610/5005 cut-off events. [2024-11-19 05:53:56,953 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-19 05:53:56,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6083 conditions, 5005 events. 610/5005 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 46949 event pairs, 600 based on Foata normal form. 696/5201 useless extension candidates. Maximal degree in co-relation 5147. Up to 1033 conditions per place. [2024-11-19 05:53:56,987 INFO L140 encePairwiseOnDemand]: 239/260 looper letters, 26 selfloop transitions, 2 changer transitions 0/239 dead transitions. [2024-11-19 05:53:56,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 239 transitions, 550 flow [2024-11-19 05:53:56,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:56,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:56,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2024-11-19 05:53:56,989 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8756410256410256 [2024-11-19 05:53:56,989 INFO L175 Difference]: Start difference. First operand has 245 places, 260 transitions, 536 flow. Second operand 3 states and 683 transitions. [2024-11-19 05:53:56,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 239 transitions, 550 flow [2024-11-19 05:53:56,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 239 transitions, 550 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:53:56,992 INFO L231 Difference]: Finished difference. Result has 244 places, 239 transitions, 498 flow [2024-11-19 05:53:56,993 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=244, PETRI_TRANSITIONS=239} [2024-11-19 05:53:56,994 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, -1 predicate places. [2024-11-19 05:53:56,995 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 239 transitions, 498 flow [2024-11-19 05:53:56,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:57,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:57,008 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] [2024-11-19 05:53:57,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:53:57,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:53:57,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:57,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1096685355, now seen corresponding path program 1 times [2024-11-19 05:53:57,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:57,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488646203] [2024-11-19 05:53:57,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:57,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:57,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:57,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:57,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488646203] [2024-11-19 05:53:57,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488646203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:57,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:57,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:57,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072075101] [2024-11-19 05:53:57,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:57,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:57,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:57,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:57,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:57,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 260 [2024-11-19 05:53:57,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 239 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:57,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:57,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 260 [2024-11-19 05:53:57,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:57,586 INFO L124 PetriNetUnfolderBase]: 598/4939 cut-off events. [2024-11-19 05:53:57,586 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-19 05:53:57,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5998 conditions, 4939 events. 598/4939 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 46042 event pairs, 594 based on Foata normal form. 0/4460 useless extension candidates. Maximal degree in co-relation 5957. Up to 1011 conditions per place. [2024-11-19 05:53:57,615 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 24 selfloop transitions, 1 changer transitions 0/237 dead transitions. [2024-11-19 05:53:57,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 237 transitions, 544 flow [2024-11-19 05:53:57,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:57,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:57,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2024-11-19 05:53:57,621 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8576923076923076 [2024-11-19 05:53:57,621 INFO L175 Difference]: Start difference. First operand has 244 places, 239 transitions, 498 flow. Second operand 3 states and 669 transitions. [2024-11-19 05:53:57,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 237 transitions, 544 flow [2024-11-19 05:53:57,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 237 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:53:57,625 INFO L231 Difference]: Finished difference. Result has 242 places, 237 transitions, 492 flow [2024-11-19 05:53:57,625 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=242, PETRI_TRANSITIONS=237} [2024-11-19 05:53:57,626 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, -3 predicate places. [2024-11-19 05:53:57,626 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 237 transitions, 492 flow [2024-11-19 05:53:57,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.0) internal successors, (645), 3 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:57,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:57,627 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] [2024-11-19 05:53:57,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:53:57,627 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:53:57,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:57,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1440410577, now seen corresponding path program 1 times [2024-11-19 05:53:57,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:57,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269949115] [2024-11-19 05:53:57,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:57,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:57,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:57,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:57,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269949115] [2024-11-19 05:53:57,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269949115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:57,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:57,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:57,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862638578] [2024-11-19 05:53:57,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:57,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:57,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:57,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:57,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:57,670 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 260 [2024-11-19 05:53:57,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 237 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:57,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:57,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 260 [2024-11-19 05:53:57,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:58,304 INFO L124 PetriNetUnfolderBase]: 868/5480 cut-off events. [2024-11-19 05:53:58,305 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-19 05:53:58,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6980 conditions, 5480 events. 868/5480 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 52502 event pairs, 856 based on Foata normal form. 0/4944 useless extension candidates. Maximal degree in co-relation 6941. Up to 1443 conditions per place. [2024-11-19 05:53:58,335 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 28 selfloop transitions, 2 changer transitions 0/236 dead transitions. [2024-11-19 05:53:58,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 236 transitions, 550 flow [2024-11-19 05:53:58,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:58,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2024-11-19 05:53:58,337 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8474358974358974 [2024-11-19 05:53:58,337 INFO L175 Difference]: Start difference. First operand has 242 places, 237 transitions, 492 flow. Second operand 3 states and 661 transitions. [2024-11-19 05:53:58,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 236 transitions, 550 flow [2024-11-19 05:53:58,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 236 transitions, 549 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:53:58,340 INFO L231 Difference]: Finished difference. Result has 242 places, 236 transitions, 493 flow [2024-11-19 05:53:58,340 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=242, PETRI_TRANSITIONS=236} [2024-11-19 05:53:58,341 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, -3 predicate places. [2024-11-19 05:53:58,341 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 236 transitions, 493 flow [2024-11-19 05:53:58,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:58,342 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:58,342 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] [2024-11-19 05:53:58,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:53:58,342 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:53:58,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:58,342 INFO L85 PathProgramCache]: Analyzing trace with hash 2106651580, now seen corresponding path program 1 times [2024-11-19 05:53:58,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:58,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461241258] [2024-11-19 05:53:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:58,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:58,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:58,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:58,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461241258] [2024-11-19 05:53:58,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461241258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:58,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:58,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:53:58,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852324884] [2024-11-19 05:53:58,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:58,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:53:58,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:58,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:53:58,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:53:58,900 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 260 [2024-11-19 05:53:58,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 236 transitions, 493 flow. Second operand has 6 states, 6 states have (on average 168.5) internal successors, (1011), 6 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:58,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:58,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 260 [2024-11-19 05:53:58,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:06,137 INFO L124 PetriNetUnfolderBase]: 29149/69746 cut-off events. [2024-11-19 05:54:06,138 INFO L125 PetriNetUnfolderBase]: For 710/710 co-relation queries the response was YES. [2024-11-19 05:54:06,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115282 conditions, 69746 events. 29149/69746 cut-off events. For 710/710 co-relation queries the response was YES. Maximal size of possible extension queue 1124. Compared 784271 event pairs, 19147 based on Foata normal form. 0/64958 useless extension candidates. Maximal degree in co-relation 115243. Up to 40545 conditions per place. [2024-11-19 05:54:06,909 INFO L140 encePairwiseOnDemand]: 221/260 looper letters, 122 selfloop transitions, 134 changer transitions 0/418 dead transitions. [2024-11-19 05:54:06,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 418 transitions, 1374 flow [2024-11-19 05:54:06,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:54:06,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:54:06,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1259 transitions. [2024-11-19 05:54:06,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8070512820512821 [2024-11-19 05:54:06,914 INFO L175 Difference]: Start difference. First operand has 242 places, 236 transitions, 493 flow. Second operand 6 states and 1259 transitions. [2024-11-19 05:54:06,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 418 transitions, 1374 flow [2024-11-19 05:54:06,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 418 transitions, 1370 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:06,931 INFO L231 Difference]: Finished difference. Result has 250 places, 369 transitions, 1367 flow [2024-11-19 05:54:06,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1367, PETRI_PLACES=250, PETRI_TRANSITIONS=369} [2024-11-19 05:54:06,933 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 5 predicate places. [2024-11-19 05:54:06,933 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 369 transitions, 1367 flow [2024-11-19 05:54:06,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.5) internal successors, (1011), 6 states have internal predecessors, (1011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:06,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:06,934 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] [2024-11-19 05:54:06,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:54:06,934 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:06,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:06,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1957488873, now seen corresponding path program 1 times [2024-11-19 05:54:06,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:06,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472343940] [2024-11-19 05:54:06,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:06,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:06,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:06,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:06,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472343940] [2024-11-19 05:54:06,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472343940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:06,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:06,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:06,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808393410] [2024-11-19 05:54:06,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:06,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:06,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:06,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:06,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:06,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 260 [2024-11-19 05:54:06,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 369 transitions, 1367 flow. Second operand has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:06,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:06,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 260 [2024-11-19 05:54:06,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:10,854 INFO L124 PetriNetUnfolderBase]: 11181/36615 cut-off events. [2024-11-19 05:54:10,855 INFO L125 PetriNetUnfolderBase]: For 5188/5618 co-relation queries the response was YES. [2024-11-19 05:54:10,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64096 conditions, 36615 events. 11181/36615 cut-off events. For 5188/5618 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 432380 event pairs, 5145 based on Foata normal form. 1/33397 useless extension candidates. Maximal degree in co-relation 64053. Up to 12382 conditions per place. [2024-11-19 05:54:11,105 INFO L140 encePairwiseOnDemand]: 257/260 looper letters, 32 selfloop transitions, 3 changer transitions 0/377 dead transitions. [2024-11-19 05:54:11,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 377 transitions, 1459 flow [2024-11-19 05:54:11,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:11,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:11,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 679 transitions. [2024-11-19 05:54:11,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8705128205128205 [2024-11-19 05:54:11,107 INFO L175 Difference]: Start difference. First operand has 250 places, 369 transitions, 1367 flow. Second operand 3 states and 679 transitions. [2024-11-19 05:54:11,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 377 transitions, 1459 flow [2024-11-19 05:54:11,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 377 transitions, 1459 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:11,208 INFO L231 Difference]: Finished difference. Result has 253 places, 371 transitions, 1392 flow [2024-11-19 05:54:11,209 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1367, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1392, PETRI_PLACES=253, PETRI_TRANSITIONS=371} [2024-11-19 05:54:11,209 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 8 predicate places. [2024-11-19 05:54:11,210 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 371 transitions, 1392 flow [2024-11-19 05:54:11,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.0) internal successors, (651), 3 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:11,210 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:11,210 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] [2024-11-19 05:54:11,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:54:11,210 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:11,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:11,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1022684854, now seen corresponding path program 1 times [2024-11-19 05:54:11,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:11,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936182895] [2024-11-19 05:54:11,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:11,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:11,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:11,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936182895] [2024-11-19 05:54:11,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936182895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:11,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:11,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:11,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490836404] [2024-11-19 05:54:11,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:11,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:11,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:11,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:11,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:11,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 260 [2024-11-19 05:54:11,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 371 transitions, 1392 flow. Second operand has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:11,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:11,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 260 [2024-11-19 05:54:11,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:15,060 INFO L124 PetriNetUnfolderBase]: 10638/35054 cut-off events. [2024-11-19 05:54:15,061 INFO L125 PetriNetUnfolderBase]: For 4589/4737 co-relation queries the response was YES. [2024-11-19 05:54:15,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63548 conditions, 35054 events. 10638/35054 cut-off events. For 4589/4737 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 408458 event pairs, 3939 based on Foata normal form. 0/33136 useless extension candidates. Maximal degree in co-relation 63504. Up to 12371 conditions per place. [2024-11-19 05:54:15,302 INFO L140 encePairwiseOnDemand]: 254/260 looper letters, 38 selfloop transitions, 2 changer transitions 0/378 dead transitions. [2024-11-19 05:54:15,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 378 transitions, 1491 flow [2024-11-19 05:54:15,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:15,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:15,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2024-11-19 05:54:15,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8564102564102564 [2024-11-19 05:54:15,305 INFO L175 Difference]: Start difference. First operand has 253 places, 371 transitions, 1392 flow. Second operand 3 states and 668 transitions. [2024-11-19 05:54:15,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 378 transitions, 1491 flow [2024-11-19 05:54:15,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 378 transitions, 1488 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:54:15,429 INFO L231 Difference]: Finished difference. Result has 251 places, 369 transitions, 1395 flow [2024-11-19 05:54:15,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1381, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1395, PETRI_PLACES=251, PETRI_TRANSITIONS=369} [2024-11-19 05:54:15,430 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 6 predicate places. [2024-11-19 05:54:15,430 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 369 transitions, 1395 flow [2024-11-19 05:54:15,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:15,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:15,431 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:15,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 05:54:15,431 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:15,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:15,431 INFO L85 PathProgramCache]: Analyzing trace with hash -930052771, now seen corresponding path program 1 times [2024-11-19 05:54:15,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:15,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146463067] [2024-11-19 05:54:15,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:15,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:16,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:16,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146463067] [2024-11-19 05:54:16,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146463067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:16,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:16,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:16,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213585343] [2024-11-19 05:54:16,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:16,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:16,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:16,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:16,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:16,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 260 [2024-11-19 05:54:16,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 369 transitions, 1395 flow. Second operand has 6 states, 6 states have (on average 173.33333333333334) internal successors, (1040), 6 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:16,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:16,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 260 [2024-11-19 05:54:16,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:26,814 INFO L124 PetriNetUnfolderBase]: 39026/89468 cut-off events. [2024-11-19 05:54:26,815 INFO L125 PetriNetUnfolderBase]: For 32828/36283 co-relation queries the response was YES. [2024-11-19 05:54:27,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204101 conditions, 89468 events. 39026/89468 cut-off events. For 32828/36283 co-relation queries the response was YES. Maximal size of possible extension queue 1983. Compared 1034417 event pairs, 9779 based on Foata normal form. 47/85776 useless extension candidates. Maximal degree in co-relation 204056. Up to 36092 conditions per place. [2024-11-19 05:54:27,815 INFO L140 encePairwiseOnDemand]: 212/260 looper letters, 473 selfloop transitions, 219 changer transitions 0/860 dead transitions. [2024-11-19 05:54:27,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 860 transitions, 5009 flow [2024-11-19 05:54:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:54:27,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:54:27,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1364 transitions. [2024-11-19 05:54:27,818 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8743589743589744 [2024-11-19 05:54:27,818 INFO L175 Difference]: Start difference. First operand has 251 places, 369 transitions, 1395 flow. Second operand 6 states and 1364 transitions. [2024-11-19 05:54:27,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 860 transitions, 5009 flow [2024-11-19 05:54:28,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 860 transitions, 5009 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:28,134 INFO L231 Difference]: Finished difference. Result has 261 places, 600 transitions, 3711 flow [2024-11-19 05:54:28,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=1395, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3711, PETRI_PLACES=261, PETRI_TRANSITIONS=600} [2024-11-19 05:54:28,135 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, 16 predicate places. [2024-11-19 05:54:28,135 INFO L471 AbstractCegarLoop]: Abstraction has has 261 places, 600 transitions, 3711 flow [2024-11-19 05:54:28,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.33333333333334) internal successors, (1040), 6 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:28,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:28,136 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:28,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 05:54:28,136 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:28,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:28,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1842964242, now seen corresponding path program 1 times [2024-11-19 05:54:28,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:28,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745545675] [2024-11-19 05:54:28,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:28,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:28,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:28,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745545675] [2024-11-19 05:54:28,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745545675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:54:28,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13947930] [2024-11-19 05:54:28,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:28,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:28,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:28,200 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) [2024-11-19 05:54:28,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:54:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:28,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:54:28,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:54:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:28,372 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:54:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:28,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13947930] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:54:28,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:54:28,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:54:28,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75149143] [2024-11-19 05:54:28,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:54:28,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:54:28,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:28,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:54:28,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:54:28,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 260 [2024-11-19 05:54:28,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 600 transitions, 3711 flow. Second operand has 10 states, 10 states have (on average 214.3) internal successors, (2143), 10 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:28,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:28,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 260 [2024-11-19 05:54:28,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:35,204 INFO L124 PetriNetUnfolderBase]: 20947/55558 cut-off events. [2024-11-19 05:54:35,205 INFO L125 PetriNetUnfolderBase]: For 50807/53664 co-relation queries the response was YES. [2024-11-19 05:54:35,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149798 conditions, 55558 events. 20947/55558 cut-off events. For 50807/53664 co-relation queries the response was YES. Maximal size of possible extension queue 1058. Compared 624577 event pairs, 2777 based on Foata normal form. 554/54818 useless extension candidates. Maximal degree in co-relation 149748. Up to 19798 conditions per place. [2024-11-19 05:54:35,939 INFO L140 encePairwiseOnDemand]: 255/260 looper letters, 72 selfloop transitions, 9 changer transitions 0/606 dead transitions. [2024-11-19 05:54:35,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 606 transitions, 3877 flow [2024-11-19 05:54:35,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:54:35,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:54:35,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1989 transitions. [2024-11-19 05:54:35,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.85 [2024-11-19 05:54:35,944 INFO L175 Difference]: Start difference. First operand has 261 places, 600 transitions, 3711 flow. Second operand 9 states and 1989 transitions. [2024-11-19 05:54:35,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 606 transitions, 3877 flow [2024-11-19 05:54:36,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 606 transitions, 3859 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:36,613 INFO L231 Difference]: Finished difference. Result has 219 places, 550 transitions, 3603 flow [2024-11-19 05:54:36,613 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=3581, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3603, PETRI_PLACES=219, PETRI_TRANSITIONS=550} [2024-11-19 05:54:36,614 INFO L277 CegarLoopForPetriNet]: 245 programPoint places, -26 predicate places. [2024-11-19 05:54:36,614 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 550 transitions, 3603 flow [2024-11-19 05:54:36,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 214.3) internal successors, (2143), 10 states have internal predecessors, (2143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:36,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:36,615 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:36,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 05:54:36,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 05:54:36,820 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-19 05:54:36,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:36,820 INFO L85 PathProgramCache]: Analyzing trace with hash 610691302, now seen corresponding path program 1 times [2024-11-19 05:54:36,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:36,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929379500] [2024-11-19 05:54:36,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:36,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:37,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:37,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929379500] [2024-11-19 05:54:37,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929379500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:37,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:37,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:37,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607699273] [2024-11-19 05:54:37,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:37,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:37,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:37,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:37,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:37,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 260 [2024-11-19 05:54:37,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 550 transitions, 3603 flow. Second operand has 6 states, 6 states have (on average 167.33333333333334) internal successors, (1004), 6 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:37,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:37,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 260 [2024-11-19 05:54:37,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand