./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/05_tas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/05_tas.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ee4025da2c93fbd4be930880192a9e0c94d8979f3d9117e228b55f99542c3b0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:46:44,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:46:44,805 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 16:46:44,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:46:44,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:46:44,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:46:44,844 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:46:44,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:46:44,845 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:46:44,846 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:46:44,846 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:46:44,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:46:44,847 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:46:44,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:46:44,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:46:44,850 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:46:44,850 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:46:44,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:46:44,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:46:44,851 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:46:44,851 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:46:44,852 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:46:44,853 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 16:46:44,853 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:46:44,854 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 16:46:44,854 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:46:44,854 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:46:44,855 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:46:44,856 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:46:44,856 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:46:44,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:46:44,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:46:44,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:46:44,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:46:44,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:46:44,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:46:44,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:46:44,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:46:44,859 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:46:44,859 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:46:44,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:46:44,860 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ee4025da2c93fbd4be930880192a9e0c94d8979f3d9117e228b55f99542c3b0 [2024-10-11 16:46:45,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:46:45,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:46:45,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:46:45,145 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:46:45,145 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:46:45,147 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/05_tas.i [2024-10-11 16:46:46,619 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:46:46,863 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:46:46,863 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/05_tas.i [2024-10-11 16:46:46,875 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/043486b00/08ca92d66d0d4b00b4265ef8c25c20f7/FLAGc42819e43 [2024-10-11 16:46:46,898 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/043486b00/08ca92d66d0d4b00b4265ef8c25c20f7 [2024-10-11 16:46:46,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:46:46,903 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:46:46,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:46:46,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:46:46,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:46:46,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:46:46" (1/1) ... [2024-10-11 16:46:46,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a4e07b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:46, skipping insertion in model container [2024-10-11 16:46:46,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:46:46" (1/1) ... [2024-10-11 16:46:46,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:46:47,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:46:47,326 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:46:47,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:46:47,435 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:46:47,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47 WrapperNode [2024-10-11 16:46:47,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:46:47,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:46:47,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:46:47,437 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:46:47,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47" (1/1) ... [2024-10-11 16:46:47,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47" (1/1) ... [2024-10-11 16:46:47,500 INFO L138 Inliner]: procedures = 169, calls = 26, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 175 [2024-10-11 16:46:47,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:46:47,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:46:47,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:46:47,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:46:47,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47" (1/1) ... [2024-10-11 16:46:47,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47" (1/1) ... [2024-10-11 16:46:47,518 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47" (1/1) ... [2024-10-11 16:46:47,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47" (1/1) ... [2024-10-11 16:46:47,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47" (1/1) ... [2024-10-11 16:46:47,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47" (1/1) ... [2024-10-11 16:46:47,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47" (1/1) ... [2024-10-11 16:46:47,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47" (1/1) ... [2024-10-11 16:46:47,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:46:47,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:46:47,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:46:47,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:46:47,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47" (1/1) ... [2024-10-11 16:46:47,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:46:47,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:46:47,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 16:46:47,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 16:46:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 16:46:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-11 16:46:47,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-11 16:46:47,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 16:46:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:46:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 16:46:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 16:46:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 16:46:47,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:46:47,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:46:47,638 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 16:46:47,748 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:46:47,749 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:46:48,126 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 16:46:48,126 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:46:48,341 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:46:48,341 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-11 16:46:48,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:46:48 BoogieIcfgContainer [2024-10-11 16:46:48,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:46:48,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:46:48,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:46:48,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:46:48,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:46:46" (1/3) ... [2024-10-11 16:46:48,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5b7121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:46:48, skipping insertion in model container [2024-10-11 16:46:48,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:46:47" (2/3) ... [2024-10-11 16:46:48,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5b7121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:46:48, skipping insertion in model container [2024-10-11 16:46:48,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:46:48" (3/3) ... [2024-10-11 16:46:48,352 INFO L112 eAbstractionObserver]: Analyzing ICFG 05_tas.i [2024-10-11 16:46:48,370 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:46:48,370 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-11 16:46:48,371 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 16:46:48,460 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:46:48,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 149 transitions, 302 flow [2024-10-11 16:46:48,541 INFO L124 PetriNetUnfolderBase]: 13/158 cut-off events. [2024-10-11 16:46:48,541 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:46:48,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 158 events. 13/158 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 172 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 134. Up to 4 conditions per place. [2024-10-11 16:46:48,548 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 149 transitions, 302 flow [2024-10-11 16:46:48,555 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 149 transitions, 302 flow [2024-10-11 16:46:48,564 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:46:48,571 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;@3ca693c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:46:48,572 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-10-11 16:46:48,583 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:46:48,583 INFO L124 PetriNetUnfolderBase]: 3/44 cut-off events. [2024-10-11 16:46:48,583 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:46:48,584 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:48,584 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:48,585 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-10-11 16:46:48,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:48,591 INFO L85 PathProgramCache]: Analyzing trace with hash -173561866, now seen corresponding path program 1 times [2024-10-11 16:46:48,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:48,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267036900] [2024-10-11 16:46:48,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:48,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:49,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:49,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:49,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267036900] [2024-10-11 16:46:49,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267036900] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:49,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:46:49,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:46:49,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325430214] [2024-10-11 16:46:49,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:49,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:46:49,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:49,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:46:49,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:46:49,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 149 [2024-10-11 16:46:49,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 149 transitions, 302 flow. Second operand has 2 states, 2 states have (on average 127.0) internal successors, (254), 2 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:49,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:49,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 149 [2024-10-11 16:46:49,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:49,264 INFO L124 PetriNetUnfolderBase]: 3/125 cut-off events. [2024-10-11 16:46:49,265 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 16:46:49,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 125 events. 3/125 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 11/121 useless extension candidates. Maximal degree in co-relation 108. Up to 4 conditions per place. [2024-10-11 16:46:49,267 INFO L140 encePairwiseOnDemand]: 132/149 looper letters, 3 selfloop transitions, 0 changer transitions 0/121 dead transitions. [2024-10-11 16:46:49,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 121 transitions, 252 flow [2024-10-11 16:46:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 16:46:49,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 16:46:49,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 272 transitions. [2024-10-11 16:46:49,283 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.912751677852349 [2024-10-11 16:46:49,286 INFO L175 Difference]: Start difference. First operand has 140 places, 149 transitions, 302 flow. Second operand 2 states and 272 transitions. [2024-10-11 16:46:49,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 121 transitions, 252 flow [2024-10-11 16:46:49,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 121 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:46:49,296 INFO L231 Difference]: Finished difference. Result has 122 places, 121 transitions, 246 flow [2024-10-11 16:46:49,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=246, PETRI_PLACES=122, PETRI_TRANSITIONS=121} [2024-10-11 16:46:49,303 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, -18 predicate places. [2024-10-11 16:46:49,305 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 121 transitions, 246 flow [2024-10-11 16:46:49,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 127.0) internal successors, (254), 2 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:49,306 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:49,307 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:49,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:46:49,307 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-10-11 16:46:49,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:49,309 INFO L85 PathProgramCache]: Analyzing trace with hash 963394114, now seen corresponding path program 1 times [2024-10-11 16:46:49,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:49,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20085945] [2024-10-11 16:46:49,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:49,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:46:49,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 16:46:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:46:49,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 16:46:49,368 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 16:46:49,370 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-10-11 16:46:49,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-10-11 16:46:49,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-10-11 16:46:49,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-10-11 16:46:49,373 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-10-11 16:46:49,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-10-11 16:46:49,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2024-10-11 16:46:49,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-10-11 16:46:49,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-10-11 16:46:49,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-10-11 16:46:49,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-10-11 16:46:49,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-10-11 16:46:49,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-10-11 16:46:49,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-10-11 16:46:49,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-10-11 16:46:49,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-10-11 16:46:49,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-10-11 16:46:49,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-10-11 16:46:49,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-10-11 16:46:49,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-10-11 16:46:49,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-10-11 16:46:49,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-10-11 16:46:49,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-10-11 16:46:49,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-10-11 16:46:49,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-10-11 16:46:49,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-10-11 16:46:49,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-10-11 16:46:49,382 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2024-10-11 16:46:49,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-10-11 16:46:49,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-10-11 16:46:49,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-10-11 16:46:49,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-10-11 16:46:49,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-10-11 16:46:49,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 16:46:49,384 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 16:46:49,389 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 16:46:49,389 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 16:46:49,494 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:46:49,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 255 places, 273 transitions, 556 flow [2024-10-11 16:46:49,583 INFO L124 PetriNetUnfolderBase]: 25/293 cut-off events. [2024-10-11 16:46:49,584 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 16:46:49,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 293 events. 25/293 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 697 event pairs, 0 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 257. Up to 6 conditions per place. [2024-10-11 16:46:49,592 INFO L82 GeneralOperation]: Start removeDead. Operand has 255 places, 273 transitions, 556 flow [2024-10-11 16:46:49,597 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 255 places, 273 transitions, 556 flow [2024-10-11 16:46:49,600 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:46:49,601 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;@3ca693c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:46:49,601 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2024-10-11 16:46:49,607 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:46:49,607 INFO L124 PetriNetUnfolderBase]: 3/44 cut-off events. [2024-10-11 16:46:49,608 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 16:46:49,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:49,608 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:49,610 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-11 16:46:49,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:49,610 INFO L85 PathProgramCache]: Analyzing trace with hash 429096199, now seen corresponding path program 1 times [2024-10-11 16:46:49,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:49,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058686346] [2024-10-11 16:46:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:49,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:49,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:49,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:49,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:49,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058686346] [2024-10-11 16:46:49,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058686346] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:49,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:46:49,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:46:49,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493103584] [2024-10-11 16:46:49,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:49,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:46:49,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:49,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:46:49,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:46:49,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 273 [2024-10-11 16:46:49,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 273 transitions, 556 flow. Second operand has 2 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:49,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:49,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 273 [2024-10-11 16:46:49,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:49,916 INFO L124 PetriNetUnfolderBase]: 15/435 cut-off events. [2024-10-11 16:46:49,917 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-11 16:46:49,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 435 events. 15/435 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1493 event pairs, 2 based on Foata normal form. 43/417 useless extension candidates. Maximal degree in co-relation 324. Up to 16 conditions per place. [2024-10-11 16:46:49,924 INFO L140 encePairwiseOnDemand]: 241/273 looper letters, 6 selfloop transitions, 0 changer transitions 0/222 dead transitions. [2024-10-11 16:46:49,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 222 transitions, 466 flow [2024-10-11 16:46:49,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 16:46:49,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 16:46:49,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 496 transitions. [2024-10-11 16:46:49,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9084249084249084 [2024-10-11 16:46:49,933 INFO L175 Difference]: Start difference. First operand has 255 places, 273 transitions, 556 flow. Second operand 2 states and 496 transitions. [2024-10-11 16:46:49,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 222 transitions, 466 flow [2024-10-11 16:46:49,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 222 transitions, 466 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:46:49,941 INFO L231 Difference]: Finished difference. Result has 222 places, 222 transitions, 454 flow [2024-10-11 16:46:49,941 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=454, PETRI_PLACES=222, PETRI_TRANSITIONS=222} [2024-10-11 16:46:49,942 INFO L277 CegarLoopForPetriNet]: 255 programPoint places, -33 predicate places. [2024-10-11 16:46:49,942 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 222 transitions, 454 flow [2024-10-11 16:46:49,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:49,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:49,945 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:49,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 16:46:49,945 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-11 16:46:49,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:49,946 INFO L85 PathProgramCache]: Analyzing trace with hash 33635440, now seen corresponding path program 1 times [2024-10-11 16:46:49,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:49,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704990731] [2024-10-11 16:46:49,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:49,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:50,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:50,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:50,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704990731] [2024-10-11 16:46:50,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704990731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:50,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:46:50,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:46:50,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785273707] [2024-10-11 16:46:50,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:50,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:46:50,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:50,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:46:50,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:46:50,896 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 273 [2024-10-11 16:46:50,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 222 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 206.5) internal successors, (1239), 6 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:50,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:50,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 273 [2024-10-11 16:46:50,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:51,598 INFO L124 PetriNetUnfolderBase]: 281/2010 cut-off events. [2024-10-11 16:46:51,599 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-10-11 16:46:51,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2553 conditions, 2010 events. 281/2010 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 13969 event pairs, 60 based on Foata normal form. 0/1731 useless extension candidates. Maximal degree in co-relation 2548. Up to 367 conditions per place. [2024-10-11 16:46:51,615 INFO L140 encePairwiseOnDemand]: 253/273 looper letters, 36 selfloop transitions, 36 changer transitions 0/264 dead transitions. [2024-10-11 16:46:51,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 264 transitions, 702 flow [2024-10-11 16:46:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:46:51,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:46:51,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1304 transitions. [2024-10-11 16:46:51,621 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.796092796092796 [2024-10-11 16:46:51,621 INFO L175 Difference]: Start difference. First operand has 222 places, 222 transitions, 454 flow. Second operand 6 states and 1304 transitions. [2024-10-11 16:46:51,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 264 transitions, 702 flow [2024-10-11 16:46:51,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 264 transitions, 702 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:46:51,631 INFO L231 Difference]: Finished difference. Result has 232 places, 257 transitions, 706 flow [2024-10-11 16:46:51,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=706, PETRI_PLACES=232, PETRI_TRANSITIONS=257} [2024-10-11 16:46:51,633 INFO L277 CegarLoopForPetriNet]: 255 programPoint places, -23 predicate places. [2024-10-11 16:46:51,633 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 257 transitions, 706 flow [2024-10-11 16:46:51,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 206.5) internal successors, (1239), 6 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:51,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:51,635 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:51,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 16:46:51,635 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2024-10-11 16:46:51,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:51,636 INFO L85 PathProgramCache]: Analyzing trace with hash -624047316, now seen corresponding path program 1 times [2024-10-11 16:46:51,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:51,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67824992] [2024-10-11 16:46:51,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:51,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:46:51,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 16:46:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:46:51,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 16:46:51,656 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 16:46:51,656 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2024-10-11 16:46:51,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2024-10-11 16:46:51,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2024-10-11 16:46:51,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2024-10-11 16:46:51,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2024-10-11 16:46:51,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2024-10-11 16:46:51,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2024-10-11 16:46:51,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2024-10-11 16:46:51,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2024-10-11 16:46:51,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2024-10-11 16:46:51,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2024-10-11 16:46:51,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2024-10-11 16:46:51,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2024-10-11 16:46:51,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2024-10-11 16:46:51,658 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2024-10-11 16:46:51,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2024-10-11 16:46:51,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2024-10-11 16:46:51,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2024-10-11 16:46:51,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2024-10-11 16:46:51,659 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2024-10-11 16:46:51,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2024-10-11 16:46:51,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2024-10-11 16:46:51,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2024-10-11 16:46:51,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2024-10-11 16:46:51,660 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2024-10-11 16:46:51,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2024-10-11 16:46:51,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2024-10-11 16:46:51,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2024-10-11 16:46:51,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2024-10-11 16:46:51,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2024-10-11 16:46:51,661 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2024-10-11 16:46:51,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2024-10-11 16:46:51,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2024-10-11 16:46:51,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2024-10-11 16:46:51,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2024-10-11 16:46:51,662 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2024-10-11 16:46:51,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2024-10-11 16:46:51,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2024-10-11 16:46:51,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2024-10-11 16:46:51,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2024-10-11 16:46:51,663 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2024-10-11 16:46:51,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2024-10-11 16:46:51,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2024-10-11 16:46:51,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2024-10-11 16:46:51,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2024-10-11 16:46:51,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2024-10-11 16:46:51,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2024-10-11 16:46:51,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2024-10-11 16:46:51,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2024-10-11 16:46:51,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 16:46:51,665 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 16:46:51,666 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 16:46:51,666 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-11 16:46:51,757 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:46:51,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 370 places, 397 transitions, 812 flow [2024-10-11 16:46:51,843 INFO L124 PetriNetUnfolderBase]: 37/428 cut-off events. [2024-10-11 16:46:51,843 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-11 16:46:51,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 428 events. 37/428 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1406 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 380. Up to 8 conditions per place. [2024-10-11 16:46:51,853 INFO L82 GeneralOperation]: Start removeDead. Operand has 370 places, 397 transitions, 812 flow [2024-10-11 16:46:51,863 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 370 places, 397 transitions, 812 flow [2024-10-11 16:46:51,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:46:51,865 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;@3ca693c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:46:51,866 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2024-10-11 16:46:51,870 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:46:51,870 INFO L124 PetriNetUnfolderBase]: 3/45 cut-off events. [2024-10-11 16:46:51,870 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 16:46:51,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:51,871 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:51,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-11 16:46:51,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:51,871 INFO L85 PathProgramCache]: Analyzing trace with hash -545260999, now seen corresponding path program 1 times [2024-10-11 16:46:51,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:51,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649373264] [2024-10-11 16:46:51,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:51,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:51,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:51,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:51,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:51,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649373264] [2024-10-11 16:46:51,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649373264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:51,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:46:51,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:46:51,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406329063] [2024-10-11 16:46:51,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:51,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:46:51,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:51,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:46:51,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:46:51,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 397 [2024-10-11 16:46:51,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 397 transitions, 812 flow. Second operand has 2 states, 2 states have (on average 333.0) internal successors, (666), 2 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:51,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:51,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 397 [2024-10-11 16:46:51,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:52,300 INFO L124 PetriNetUnfolderBase]: 51/1157 cut-off events. [2024-10-11 16:46:52,301 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-10-11 16:46:52,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 1157 events. 51/1157 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7037 event pairs, 10 based on Foata normal form. 123/1108 useless extension candidates. Maximal degree in co-relation 762. Up to 52 conditions per place. [2024-10-11 16:46:52,332 INFO L140 encePairwiseOnDemand]: 350/397 looper letters, 9 selfloop transitions, 0 changer transitions 0/323 dead transitions. [2024-10-11 16:46:52,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 323 transitions, 682 flow [2024-10-11 16:46:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 16:46:52,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 16:46:52,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 720 transitions. [2024-10-11 16:46:52,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.906801007556675 [2024-10-11 16:46:52,337 INFO L175 Difference]: Start difference. First operand has 370 places, 397 transitions, 812 flow. Second operand 2 states and 720 transitions. [2024-10-11 16:46:52,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 323 transitions, 682 flow [2024-10-11 16:46:52,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 323 transitions, 680 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-11 16:46:52,343 INFO L231 Difference]: Finished difference. Result has 322 places, 323 transitions, 662 flow [2024-10-11 16:46:52,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=397, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=662, PETRI_PLACES=322, PETRI_TRANSITIONS=323} [2024-10-11 16:46:52,345 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, -48 predicate places. [2024-10-11 16:46:52,345 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 323 transitions, 662 flow [2024-10-11 16:46:52,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 333.0) internal successors, (666), 2 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:52,346 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:52,346 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:52,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 16:46:52,346 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-11 16:46:52,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:52,346 INFO L85 PathProgramCache]: Analyzing trace with hash 584870146, now seen corresponding path program 1 times [2024-10-11 16:46:52,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:52,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070529114] [2024-10-11 16:46:52,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:52,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:52,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:46:52,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:52,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070529114] [2024-10-11 16:46:52,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070529114] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:52,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:46:52,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:46:52,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736592980] [2024-10-11 16:46:52,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:52,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:46:52,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:52,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:46:52,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:46:53,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 397 [2024-10-11 16:46:53,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 323 transitions, 662 flow. Second operand has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:53,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:53,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 397 [2024-10-11 16:46:53,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:46:56,492 INFO L124 PetriNetUnfolderBase]: 3549/14246 cut-off events. [2024-10-11 16:46:56,493 INFO L125 PetriNetUnfolderBase]: For 649/649 co-relation queries the response was YES. [2024-10-11 16:46:56,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19795 conditions, 14246 events. 3549/14246 cut-off events. For 649/649 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 141033 event pairs, 1092 based on Foata normal form. 0/12246 useless extension candidates. Maximal degree in co-relation 19789. Up to 4142 conditions per place. [2024-10-11 16:46:56,692 INFO L140 encePairwiseOnDemand]: 371/397 looper letters, 47 selfloop transitions, 60 changer transitions 0/393 dead transitions. [2024-10-11 16:46:56,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 393 transitions, 1056 flow [2024-10-11 16:46:56,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:46:56,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:46:56,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1933 transitions. [2024-10-11 16:46:56,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8115029387069689 [2024-10-11 16:46:56,698 INFO L175 Difference]: Start difference. First operand has 322 places, 323 transitions, 662 flow. Second operand 6 states and 1933 transitions. [2024-10-11 16:46:56,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 393 transitions, 1056 flow [2024-10-11 16:46:56,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 393 transitions, 1056 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:46:56,707 INFO L231 Difference]: Finished difference. Result has 332 places, 382 transitions, 1070 flow [2024-10-11 16:46:56,708 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=397, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1070, PETRI_PLACES=332, PETRI_TRANSITIONS=382} [2024-10-11 16:46:56,712 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, -38 predicate places. [2024-10-11 16:46:56,713 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 382 transitions, 1070 flow [2024-10-11 16:46:56,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:56,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:46:56,714 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:46:56,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 16:46:56,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-11 16:46:56,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:46:56,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1346995940, now seen corresponding path program 1 times [2024-10-11 16:46:56,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:46:56,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054214002] [2024-10-11 16:46:56,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:46:56,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:46:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:46:57,073 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 16:46:57,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:46:57,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054214002] [2024-10-11 16:46:57,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054214002] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:46:57,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:46:57,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:46:57,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382358179] [2024-10-11 16:46:57,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:46:57,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:46:57,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:46:57,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:46:57,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:46:57,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 397 [2024-10-11 16:46:57,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 382 transitions, 1070 flow. Second operand has 6 states, 6 states have (on average 305.6666666666667) internal successors, (1834), 6 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:46:57,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:46:57,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 397 [2024-10-11 16:46:57,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:47:04,175 INFO L124 PetriNetUnfolderBase]: 10068/39861 cut-off events. [2024-10-11 16:47:04,175 INFO L125 PetriNetUnfolderBase]: For 14374/17347 co-relation queries the response was YES. [2024-10-11 16:47:04,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68329 conditions, 39861 events. 10068/39861 cut-off events. For 14374/17347 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 489605 event pairs, 1731 based on Foata normal form. 207/34790 useless extension candidates. Maximal degree in co-relation 68318. Up to 10597 conditions per place. [2024-10-11 16:47:04,697 INFO L140 encePairwiseOnDemand]: 371/397 looper letters, 92 selfloop transitions, 164 changer transitions 0/552 dead transitions. [2024-10-11 16:47:04,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 552 transitions, 2416 flow [2024-10-11 16:47:04,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:47:04,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:47:04,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1929 transitions. [2024-10-11 16:47:04,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.809823677581864 [2024-10-11 16:47:04,702 INFO L175 Difference]: Start difference. First operand has 332 places, 382 transitions, 1070 flow. Second operand 6 states and 1929 transitions. [2024-10-11 16:47:04,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 552 transitions, 2416 flow [2024-10-11 16:47:04,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 552 transitions, 2416 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:47:04,746 INFO L231 Difference]: Finished difference. Result has 342 places, 545 transitions, 2634 flow [2024-10-11 16:47:04,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=397, PETRI_DIFFERENCE_MINUEND_FLOW=1070, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2634, PETRI_PLACES=342, PETRI_TRANSITIONS=545} [2024-10-11 16:47:04,749 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, -28 predicate places. [2024-10-11 16:47:04,749 INFO L471 AbstractCegarLoop]: Abstraction has has 342 places, 545 transitions, 2634 flow [2024-10-11 16:47:04,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 305.6666666666667) internal successors, (1834), 6 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:47:04,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:04,751 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:47:04,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 16:47:04,751 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2024-10-11 16:47:04,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:04,752 INFO L85 PathProgramCache]: Analyzing trace with hash -2096932321, now seen corresponding path program 1 times [2024-10-11 16:47:04,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:04,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578732235] [2024-10-11 16:47:04,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:04,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:47:04,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 16:47:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:47:04,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 16:47:04,778 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 16:47:04,778 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2024-10-11 16:47:04,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2024-10-11 16:47:04,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2024-10-11 16:47:04,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2024-10-11 16:47:04,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2024-10-11 16:47:04,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2024-10-11 16:47:04,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2024-10-11 16:47:04,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2024-10-11 16:47:04,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2024-10-11 16:47:04,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2024-10-11 16:47:04,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2024-10-11 16:47:04,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2024-10-11 16:47:04,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2024-10-11 16:47:04,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2024-10-11 16:47:04,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2024-10-11 16:47:04,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2024-10-11 16:47:04,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2024-10-11 16:47:04,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2024-10-11 16:47:04,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2024-10-11 16:47:04,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2024-10-11 16:47:04,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2024-10-11 16:47:04,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2024-10-11 16:47:04,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2024-10-11 16:47:04,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2024-10-11 16:47:04,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2024-10-11 16:47:04,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2024-10-11 16:47:04,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2024-10-11 16:47:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2024-10-11 16:47:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2024-10-11 16:47:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2024-10-11 16:47:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2024-10-11 16:47:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2024-10-11 16:47:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2024-10-11 16:47:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2024-10-11 16:47:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2024-10-11 16:47:04,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2024-10-11 16:47:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2024-10-11 16:47:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2024-10-11 16:47:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2024-10-11 16:47:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2024-10-11 16:47:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2024-10-11 16:47:04,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2024-10-11 16:47:04,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2024-10-11 16:47:04,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2024-10-11 16:47:04,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2024-10-11 16:47:04,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2024-10-11 16:47:04,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2024-10-11 16:47:04,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2024-10-11 16:47:04,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2024-10-11 16:47:04,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2024-10-11 16:47:04,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2024-10-11 16:47:04,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2024-10-11 16:47:04,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2024-10-11 16:47:04,787 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2024-10-11 16:47:04,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2024-10-11 16:47:04,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2024-10-11 16:47:04,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2024-10-11 16:47:04,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2024-10-11 16:47:04,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2024-10-11 16:47:04,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2024-10-11 16:47:04,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2024-10-11 16:47:04,788 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2024-10-11 16:47:04,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2024-10-11 16:47:04,789 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2024-10-11 16:47:04,790 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2024-10-11 16:47:04,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 16:47:04,790 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-11 16:47:04,791 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 16:47:04,791 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-11 16:47:04,904 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 16:47:04,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 485 places, 521 transitions, 1070 flow [2024-10-11 16:47:04,999 INFO L124 PetriNetUnfolderBase]: 49/563 cut-off events. [2024-10-11 16:47:05,000 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 16:47:05,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 563 events. 49/563 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2185 event pairs, 0 based on Foata normal form. 0/445 useless extension candidates. Maximal degree in co-relation 503. Up to 10 conditions per place. [2024-10-11 16:47:05,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 485 places, 521 transitions, 1070 flow [2024-10-11 16:47:05,034 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 485 places, 521 transitions, 1070 flow [2024-10-11 16:47:05,035 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:47:05,036 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;@3ca693c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:47:05,036 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2024-10-11 16:47:05,039 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:47:05,039 INFO L124 PetriNetUnfolderBase]: 3/44 cut-off events. [2024-10-11 16:47:05,039 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 16:47:05,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:05,039 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:47:05,040 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2024-10-11 16:47:05,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:05,040 INFO L85 PathProgramCache]: Analyzing trace with hash -831497150, now seen corresponding path program 1 times [2024-10-11 16:47:05,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:05,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496405223] [2024-10-11 16:47:05,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:05,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:47:05,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:47:05,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:47:05,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496405223] [2024-10-11 16:47:05,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496405223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:47:05,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:47:05,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 16:47:05,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207652556] [2024-10-11 16:47:05,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:47:05,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 16:47:05,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:47:05,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 16:47:05,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 16:47:05,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 521 [2024-10-11 16:47:05,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 521 transitions, 1070 flow. Second operand has 2 states, 2 states have (on average 436.0) internal successors, (872), 2 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:47:05,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:47:05,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 521 [2024-10-11 16:47:05,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:47:05,889 INFO L124 PetriNetUnfolderBase]: 147/2715 cut-off events. [2024-10-11 16:47:05,890 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-10-11 16:47:05,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2932 conditions, 2715 events. 147/2715 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 22547 event pairs, 34 based on Foata normal form. 307/2604 useless extension candidates. Maximal degree in co-relation 1656. Up to 148 conditions per place. [2024-10-11 16:47:05,955 INFO L140 encePairwiseOnDemand]: 459/521 looper letters, 12 selfloop transitions, 0 changer transitions 0/424 dead transitions. [2024-10-11 16:47:05,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 424 transitions, 900 flow [2024-10-11 16:47:05,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 16:47:05,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-11 16:47:05,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 944 transitions. [2024-10-11 16:47:05,958 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9059500959692899 [2024-10-11 16:47:05,958 INFO L175 Difference]: Start difference. First operand has 485 places, 521 transitions, 1070 flow. Second operand 2 states and 944 transitions. [2024-10-11 16:47:05,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 424 transitions, 900 flow [2024-10-11 16:47:05,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 424 transitions, 894 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-10-11 16:47:05,965 INFO L231 Difference]: Finished difference. Result has 422 places, 424 transitions, 870 flow [2024-10-11 16:47:05,966 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=521, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=870, PETRI_PLACES=422, PETRI_TRANSITIONS=424} [2024-10-11 16:47:05,966 INFO L277 CegarLoopForPetriNet]: 485 programPoint places, -63 predicate places. [2024-10-11 16:47:05,966 INFO L471 AbstractCegarLoop]: Abstraction has has 422 places, 424 transitions, 870 flow [2024-10-11 16:47:05,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 436.0) internal successors, (872), 2 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:47:05,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:05,967 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:47:05,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 16:47:05,968 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2024-10-11 16:47:05,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:05,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1943670325, now seen corresponding path program 1 times [2024-10-11 16:47:05,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:05,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077099319] [2024-10-11 16:47:05,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:05,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:47:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:47:06,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:47:06,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077099319] [2024-10-11 16:47:06,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077099319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:47:06,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:47:06,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:47:06,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499845161] [2024-10-11 16:47:06,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:47:06,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:47:06,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:47:06,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:47:06,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:47:06,815 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 521 [2024-10-11 16:47:06,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 424 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 404.5) internal successors, (2427), 6 states have internal predecessors, (2427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:47:06,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:47:06,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 521 [2024-10-11 16:47:06,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:47:23,980 INFO L124 PetriNetUnfolderBase]: 32047/84949 cut-off events. [2024-10-11 16:47:23,980 INFO L125 PetriNetUnfolderBase]: For 4387/4387 co-relation queries the response was YES. [2024-10-11 16:47:24,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129869 conditions, 84949 events. 32047/84949 cut-off events. For 4387/4387 co-relation queries the response was YES. Maximal size of possible extension queue 1422. Compared 964179 event pairs, 11268 based on Foata normal form. 0/73261 useless extension candidates. Maximal degree in co-relation 129862. Up to 35862 conditions per place. [2024-10-11 16:47:25,561 INFO L140 encePairwiseOnDemand]: 489/521 looper letters, 58 selfloop transitions, 84 changer transitions 0/522 dead transitions. [2024-10-11 16:47:25,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 522 transitions, 1410 flow [2024-10-11 16:47:25,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:47:25,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:47:25,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2562 transitions. [2024-10-11 16:47:25,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8195777351247601 [2024-10-11 16:47:25,568 INFO L175 Difference]: Start difference. First operand has 422 places, 424 transitions, 870 flow. Second operand 6 states and 2562 transitions. [2024-10-11 16:47:25,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 522 transitions, 1410 flow [2024-10-11 16:47:25,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 522 transitions, 1410 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:47:25,577 INFO L231 Difference]: Finished difference. Result has 432 places, 507 transitions, 1434 flow [2024-10-11 16:47:25,578 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=521, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1434, PETRI_PLACES=432, PETRI_TRANSITIONS=507} [2024-10-11 16:47:25,578 INFO L277 CegarLoopForPetriNet]: 485 programPoint places, -53 predicate places. [2024-10-11 16:47:25,578 INFO L471 AbstractCegarLoop]: Abstraction has has 432 places, 507 transitions, 1434 flow [2024-10-11 16:47:25,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 404.5) internal successors, (2427), 6 states have internal predecessors, (2427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:47:25,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:47:25,581 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:47:25,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 16:47:25,581 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2024-10-11 16:47:25,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:47:25,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1751968991, now seen corresponding path program 1 times [2024-10-11 16:47:25,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:47:25,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278084070] [2024-10-11 16:47:25,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:47:25,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:47:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:47:25,798 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-11 16:47:25,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:47:25,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278084070] [2024-10-11 16:47:25,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278084070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:47:25,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:47:25,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:47:25,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637575015] [2024-10-11 16:47:25,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:47:25,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:47:25,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:47:25,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:47:25,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:47:26,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 521 [2024-10-11 16:47:26,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 507 transitions, 1434 flow. Second operand has 6 states, 6 states have (on average 404.6666666666667) internal successors, (2428), 6 states have internal predecessors, (2428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 16:47:26,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:47:26,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 521 [2024-10-11 16:47:26,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand