./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/01_inc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/01_inc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dc44c09c63836e77e2249e5abf8328354015a2494c028ff1b2e04f58fa741976 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 06:29:38,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:29:38,168 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 06:29:38,172 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:29:38,174 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:29:38,207 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:29:38,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:29:38,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:29:38,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:29:38,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:29:38,211 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 06:29:38,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 06:29:38,212 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 06:29:38,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:29:38,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:29:38,213 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:29:38,213 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:29:38,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:29:38,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:29:38,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:29:38,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:29:38,220 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:29:38,220 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 06:29:38,221 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:29:38,222 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:29:38,222 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:29:38,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:29:38,222 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:29:38,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:29:38,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:29:38,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:29:38,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:29:38,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:29:38,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:29:38,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:29:38,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 06:29:38,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:29:38,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:29:38,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 06:29:38,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 06:29:38,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:29:38,227 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc44c09c63836e77e2249e5abf8328354015a2494c028ff1b2e04f58fa741976 [2024-11-09 06:29:38,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:29:38,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:29:38,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:29:38,570 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:29:38,571 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:29:38,572 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/01_inc.i [2024-11-09 06:29:40,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:29:40,347 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:29:40,348 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/01_inc.i [2024-11-09 06:29:40,365 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9301e538c/42c841d255a1422c93c274f2f8d95fa0/FLAG2480068e1 [2024-11-09 06:29:40,380 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9301e538c/42c841d255a1422c93c274f2f8d95fa0 [2024-11-09 06:29:40,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:29:40,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:29:40,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:29:40,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:29:40,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:29:40,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:40,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f8561a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40, skipping insertion in model container [2024-11-09 06:29:40,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:40,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:29:40,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:29:40,864 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:29:40,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:29:40,972 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:29:40,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40 WrapperNode [2024-11-09 06:29:40,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:29:40,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:29:40,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:29:40,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:29:40,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:41,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:41,028 INFO L138 Inliner]: procedures = 171, calls = 15, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 87 [2024-11-09 06:29:41,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:29:41,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:29:41,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:29:41,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:29:41,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:41,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:41,044 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:41,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:41,050 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:41,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:41,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:41,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:41,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:29:41,066 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:29:41,066 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:29:41,066 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:29:41,067 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40" (1/1) ... [2024-11-09 06:29:41,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 06:29:41,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 06:29:41,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 06:29:41,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 06:29:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-09 06:29:41,166 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-09 06:29:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 06:29:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:29:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:29:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 06:29:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:29:41,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:29:41,170 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 06:29:41,329 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:29:41,331 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:29:41,513 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 06:29:41,514 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:29:41,651 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:29:41,655 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:29:41,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:29:41 BoogieIcfgContainer [2024-11-09 06:29:41,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:29:41,658 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:29:41,658 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:29:41,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:29:41,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:29:40" (1/3) ... [2024-11-09 06:29:41,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e2ec74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:29:41, skipping insertion in model container [2024-11-09 06:29:41,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:29:40" (2/3) ... [2024-11-09 06:29:41,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e2ec74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:29:41, skipping insertion in model container [2024-11-09 06:29:41,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:29:41" (3/3) ... [2024-11-09 06:29:41,668 INFO L112 eAbstractionObserver]: Analyzing ICFG 01_inc.i [2024-11-09 06:29:41,686 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:29:41,687 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-09 06:29:41,687 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 06:29:41,748 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:29:41,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions, 114 flow [2024-11-09 06:29:41,835 INFO L124 PetriNetUnfolderBase]: 3/64 cut-off events. [2024-11-09 06:29:41,836 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:29:41,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 3/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 92 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 42. Up to 4 conditions per place. [2024-11-09 06:29:41,845 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 55 transitions, 114 flow [2024-11-09 06:29:41,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 55 transitions, 114 flow [2024-11-09 06:29:41,867 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:29:41,877 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;@3190e25a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:29:41,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-09 06:29:41,892 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:29:41,893 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2024-11-09 06:29:41,893 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:29:41,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:41,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:41,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:29:41,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:41,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1769426396, now seen corresponding path program 1 times [2024-11-09 06:29:41,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:41,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225652380] [2024-11-09 06:29:41,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:41,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:42,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:42,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225652380] [2024-11-09 06:29:42,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225652380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:42,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:42,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:29:42,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217276633] [2024-11-09 06:29:42,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:42,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:29:42,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:42,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:29:42,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:29:42,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 55 [2024-11-09 06:29:42,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 114 flow. Second operand has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:42,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:42,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 55 [2024-11-09 06:29:42,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:29:42,213 INFO L124 PetriNetUnfolderBase]: 1/47 cut-off events. [2024-11-09 06:29:42,214 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:29:42,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 47 events. 1/47 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 6/49 useless extension candidates. Maximal degree in co-relation 34. Up to 6 conditions per place. [2024-11-09 06:29:42,216 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 5 selfloop transitions, 0 changer transitions 0/43 dead transitions. [2024-11-09 06:29:42,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 43 transitions, 100 flow [2024-11-09 06:29:42,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:29:42,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:29:42,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 96 transitions. [2024-11-09 06:29:42,230 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8727272727272727 [2024-11-09 06:29:42,232 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 114 flow. Second operand 2 states and 96 transitions. [2024-11-09 06:29:42,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 43 transitions, 100 flow [2024-11-09 06:29:42,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 43 transitions, 100 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:29:42,241 INFO L231 Difference]: Finished difference. Result has 46 places, 43 transitions, 90 flow [2024-11-09 06:29:42,264 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=90, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2024-11-09 06:29:42,275 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -10 predicate places. [2024-11-09 06:29:42,276 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 90 flow [2024-11-09 06:29:42,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:42,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:42,276 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] [2024-11-09 06:29:42,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:29:42,277 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:29:42,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:42,278 INFO L85 PathProgramCache]: Analyzing trace with hash 388293319, now seen corresponding path program 1 times [2024-11-09 06:29:42,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:42,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984473346] [2024-11-09 06:29:42,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:42,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:42,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:42,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:42,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984473346] [2024-11-09 06:29:42,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984473346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:42,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:42,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:29:42,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372502946] [2024-11-09 06:29:42,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:42,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:29:42,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:42,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:29:42,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:42,483 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 55 [2024-11-09 06:29:42,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:42,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:42,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 55 [2024-11-09 06:29:42,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:29:42,514 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-11-09 06:29:42,514 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 06:29:42,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 45 events. 1/45 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 57. Up to 6 conditions per place. [2024-11-09 06:29:42,515 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 7 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2024-11-09 06:29:42,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 41 transitions, 106 flow [2024-11-09 06:29:42,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:29:42,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:29:42,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-11-09 06:29:42,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6909090909090909 [2024-11-09 06:29:42,518 INFO L175 Difference]: Start difference. First operand has 46 places, 43 transitions, 90 flow. Second operand 3 states and 114 transitions. [2024-11-09 06:29:42,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 41 transitions, 106 flow [2024-11-09 06:29:42,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 41 transitions, 106 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:29:42,522 INFO L231 Difference]: Finished difference. Result has 46 places, 41 transitions, 92 flow [2024-11-09 06:29:42,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=46, PETRI_TRANSITIONS=41} [2024-11-09 06:29:42,524 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -10 predicate places. [2024-11-09 06:29:42,525 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 41 transitions, 92 flow [2024-11-09 06:29:42,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:42,526 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:42,526 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:42,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:29:42,526 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-09 06:29:42,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:42,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1788807122, now seen corresponding path program 1 times [2024-11-09 06:29:42,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:42,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055427790] [2024-11-09 06:29:42,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:42,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:29:42,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:29:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:29:42,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:29:42,600 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:29:42,601 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-09 06:29:42,603 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-09 06:29:42,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-09 06:29:42,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-09 06:29:42,604 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-09 06:29:42,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-09 06:29:42,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2024-11-09 06:29:42,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-09 06:29:42,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-09 06:29:42,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-09 06:29:42,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-09 06:29:42,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-09 06:29:42,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-09 06:29:42,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2024-11-09 06:29:42,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2024-11-09 06:29:42,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-09 06:29:42,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-09 06:29:42,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-09 06:29:42,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-09 06:29:42,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-09 06:29:42,608 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-09 06:29:42,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:29:42,609 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 06:29:42,615 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:29:42,616 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 06:29:42,652 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:29:42,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 87 transitions, 184 flow [2024-11-09 06:29:42,674 INFO L124 PetriNetUnfolderBase]: 5/107 cut-off events. [2024-11-09 06:29:42,675 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-09 06:29:42,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 107 events. 5/107 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 249 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 73. Up to 6 conditions per place. [2024-11-09 06:29:42,677 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 87 transitions, 184 flow [2024-11-09 06:29:42,678 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 87 transitions, 184 flow [2024-11-09 06:29:42,680 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:29:42,681 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;@3190e25a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:29:42,681 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-09 06:29:42,686 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:29:42,686 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-11-09 06:29:42,687 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:29:42,687 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:42,687 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:42,687 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-09 06:29:42,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:42,688 INFO L85 PathProgramCache]: Analyzing trace with hash 911408219, now seen corresponding path program 1 times [2024-11-09 06:29:42,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:42,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198324045] [2024-11-09 06:29:42,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:42,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:42,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:42,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:42,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198324045] [2024-11-09 06:29:42,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198324045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:42,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:42,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:29:42,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204115353] [2024-11-09 06:29:42,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:42,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:29:42,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:42,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:29:42,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:29:42,738 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 87 [2024-11-09 06:29:42,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 87 transitions, 184 flow. Second operand has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:42,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:42,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 87 [2024-11-09 06:29:42,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:29:42,814 INFO L124 PetriNetUnfolderBase]: 26/198 cut-off events. [2024-11-09 06:29:42,814 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-09 06:29:42,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 198 events. 26/198 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 762 event pairs, 20 based on Foata normal form. 31/199 useless extension candidates. Maximal degree in co-relation 188. Up to 51 conditions per place. [2024-11-09 06:29:42,822 INFO L140 encePairwiseOnDemand]: 71/87 looper letters, 10 selfloop transitions, 0 changer transitions 0/68 dead transitions. [2024-11-09 06:29:42,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 68 transitions, 166 flow [2024-11-09 06:29:42,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:29:42,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:29:42,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 148 transitions. [2024-11-09 06:29:42,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8505747126436781 [2024-11-09 06:29:42,826 INFO L175 Difference]: Start difference. First operand has 89 places, 87 transitions, 184 flow. Second operand 2 states and 148 transitions. [2024-11-09 06:29:42,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 68 transitions, 166 flow [2024-11-09 06:29:42,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 68 transitions, 166 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:29:42,832 INFO L231 Difference]: Finished difference. Result has 72 places, 68 transitions, 146 flow [2024-11-09 06:29:42,832 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=146, PETRI_PLACES=72, PETRI_TRANSITIONS=68} [2024-11-09 06:29:42,833 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, -17 predicate places. [2024-11-09 06:29:42,833 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 68 transitions, 146 flow [2024-11-09 06:29:42,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:42,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:42,834 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:42,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:29:42,834 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-09 06:29:42,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:42,835 INFO L85 PathProgramCache]: Analyzing trace with hash -310015490, now seen corresponding path program 1 times [2024-11-09 06:29:42,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:42,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021934532] [2024-11-09 06:29:42,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:42,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:42,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:42,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021934532] [2024-11-09 06:29:42,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021934532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:42,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:42,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:29:42,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464212825] [2024-11-09 06:29:42,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:42,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:29:42,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:42,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:29:42,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:42,944 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 87 [2024-11-09 06:29:42,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:42,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:42,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 87 [2024-11-09 06:29:42,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:29:43,080 INFO L124 PetriNetUnfolderBase]: 128/487 cut-off events. [2024-11-09 06:29:43,081 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-11-09 06:29:43,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 487 events. 128/487 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2669 event pairs, 48 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 779. Up to 184 conditions per place. [2024-11-09 06:29:43,088 INFO L140 encePairwiseOnDemand]: 71/87 looper letters, 31 selfloop transitions, 12 changer transitions 0/87 dead transitions. [2024-11-09 06:29:43,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 87 transitions, 275 flow [2024-11-09 06:29:43,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:29:43,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:29:43,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 188 transitions. [2024-11-09 06:29:43,091 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7203065134099617 [2024-11-09 06:29:43,091 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 146 flow. Second operand 3 states and 188 transitions. [2024-11-09 06:29:43,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 87 transitions, 275 flow [2024-11-09 06:29:43,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 87 transitions, 275 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:29:43,095 INFO L231 Difference]: Finished difference. Result has 76 places, 80 transitions, 250 flow [2024-11-09 06:29:43,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=76, PETRI_TRANSITIONS=80} [2024-11-09 06:29:43,096 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, -13 predicate places. [2024-11-09 06:29:43,096 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 80 transitions, 250 flow [2024-11-09 06:29:43,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:43,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:43,097 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:43,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:29:43,098 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-09 06:29:43,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:43,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1750414311, now seen corresponding path program 1 times [2024-11-09 06:29:43,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:43,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541124463] [2024-11-09 06:29:43,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:43,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:43,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:43,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:43,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541124463] [2024-11-09 06:29:43,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541124463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:43,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:43,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:29:43,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426799053] [2024-11-09 06:29:43,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:43,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:29:43,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:43,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:29:43,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:43,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 87 [2024-11-09 06:29:43,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 80 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:43,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:43,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 87 [2024-11-09 06:29:43,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:29:43,344 INFO L124 PetriNetUnfolderBase]: 164/573 cut-off events. [2024-11-09 06:29:43,345 INFO L125 PetriNetUnfolderBase]: For 222/230 co-relation queries the response was YES. [2024-11-09 06:29:43,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 573 events. 164/573 cut-off events. For 222/230 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3288 event pairs, 73 based on Foata normal form. 5/517 useless extension candidates. Maximal degree in co-relation 1184. Up to 259 conditions per place. [2024-11-09 06:29:43,353 INFO L140 encePairwiseOnDemand]: 79/87 looper letters, 30 selfloop transitions, 10 changer transitions 0/92 dead transitions. [2024-11-09 06:29:43,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 92 transitions, 379 flow [2024-11-09 06:29:43,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:29:43,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:29:43,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2024-11-09 06:29:43,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7049808429118773 [2024-11-09 06:29:43,356 INFO L175 Difference]: Start difference. First operand has 76 places, 80 transitions, 250 flow. Second operand 3 states and 184 transitions. [2024-11-09 06:29:43,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 92 transitions, 379 flow [2024-11-09 06:29:43,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 92 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:29:43,364 INFO L231 Difference]: Finished difference. Result has 78 places, 88 transitions, 312 flow [2024-11-09 06:29:43,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=78, PETRI_TRANSITIONS=88} [2024-11-09 06:29:43,366 INFO L277 CegarLoopForPetriNet]: 89 programPoint places, -11 predicate places. [2024-11-09 06:29:43,366 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 88 transitions, 312 flow [2024-11-09 06:29:43,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:43,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:43,368 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] [2024-11-09 06:29:43,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:29:43,369 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-09 06:29:43,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:43,369 INFO L85 PathProgramCache]: Analyzing trace with hash -137112794, now seen corresponding path program 1 times [2024-11-09 06:29:43,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:43,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499915812] [2024-11-09 06:29:43,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:43,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:29:43,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:29:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:29:43,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:29:43,402 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:29:43,403 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-09 06:29:43,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-09 06:29:43,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-09 06:29:43,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-09 06:29:43,403 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-09 06:29:43,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-09 06:29:43,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2024-11-09 06:29:43,404 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-09 06:29:43,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-09 06:29:43,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-09 06:29:43,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-09 06:29:43,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-09 06:29:43,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-09 06:29:43,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-09 06:29:43,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-09 06:29:43,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-09 06:29:43,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-09 06:29:43,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-09 06:29:43,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-09 06:29:43,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-09 06:29:43,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-09 06:29:43,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-09 06:29:43,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-09 06:29:43,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-09 06:29:43,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-09 06:29:43,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-09 06:29:43,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-09 06:29:43,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-09 06:29:43,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-09 06:29:43,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-09 06:29:43,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-09 06:29:43,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:29:43,411 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 06:29:43,412 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:29:43,412 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 06:29:43,457 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:29:43,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 119 transitions, 256 flow [2024-11-09 06:29:43,481 INFO L124 PetriNetUnfolderBase]: 7/150 cut-off events. [2024-11-09 06:29:43,481 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 06:29:43,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 150 events. 7/150 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 418 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 111. Up to 8 conditions per place. [2024-11-09 06:29:43,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 119 transitions, 256 flow [2024-11-09 06:29:43,488 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 119 transitions, 256 flow [2024-11-09 06:29:43,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:29:43,490 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;@3190e25a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:29:43,490 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-09 06:29:43,497 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:29:43,499 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2024-11-09 06:29:43,500 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:29:43,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:43,500 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:43,501 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 06:29:43,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:43,502 INFO L85 PathProgramCache]: Analyzing trace with hash 579152499, now seen corresponding path program 1 times [2024-11-09 06:29:43,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:43,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083068075] [2024-11-09 06:29:43,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:43,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:43,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:43,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:43,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083068075] [2024-11-09 06:29:43,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083068075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:43,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:43,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:29:43,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072113303] [2024-11-09 06:29:43,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:43,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:29:43,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:43,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:29:43,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:29:43,532 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 119 [2024-11-09 06:29:43,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 119 transitions, 256 flow. Second operand has 2 states, 2 states have (on average 82.0) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:43,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:43,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 119 [2024-11-09 06:29:43,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:29:43,702 INFO L124 PetriNetUnfolderBase]: 247/989 cut-off events. [2024-11-09 06:29:43,703 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-11-09 06:29:43,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1486 conditions, 989 events. 247/989 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7088 event pairs, 220 based on Foata normal form. 156/990 useless extension candidates. Maximal degree in co-relation 1070. Up to 376 conditions per place. [2024-11-09 06:29:43,722 INFO L140 encePairwiseOnDemand]: 96/119 looper letters, 15 selfloop transitions, 0 changer transitions 0/93 dead transitions. [2024-11-09 06:29:43,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 93 transitions, 234 flow [2024-11-09 06:29:43,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:29:43,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:29:43,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 200 transitions. [2024-11-09 06:29:43,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8403361344537815 [2024-11-09 06:29:43,725 INFO L175 Difference]: Start difference. First operand has 122 places, 119 transitions, 256 flow. Second operand 2 states and 200 transitions. [2024-11-09 06:29:43,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 93 transitions, 234 flow [2024-11-09 06:29:43,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 93 transitions, 232 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-09 06:29:43,731 INFO L231 Difference]: Finished difference. Result has 98 places, 93 transitions, 202 flow [2024-11-09 06:29:43,731 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=202, PETRI_PLACES=98, PETRI_TRANSITIONS=93} [2024-11-09 06:29:43,780 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -24 predicate places. [2024-11-09 06:29:43,780 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 93 transitions, 202 flow [2024-11-09 06:29:43,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.0) internal successors, (164), 2 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:43,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:43,781 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] [2024-11-09 06:29:43,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:29:43,781 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 06:29:43,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:43,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1780178698, now seen corresponding path program 1 times [2024-11-09 06:29:43,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:43,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407880608] [2024-11-09 06:29:43,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:43,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:43,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:43,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:43,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407880608] [2024-11-09 06:29:43,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407880608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:43,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:43,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:29:43,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745079941] [2024-11-09 06:29:43,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:43,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:29:43,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:43,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:29:43,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:43,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 119 [2024-11-09 06:29:43,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 93 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:43,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:43,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 119 [2024-11-09 06:29:43,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:29:44,973 INFO L124 PetriNetUnfolderBase]: 3439/7937 cut-off events. [2024-11-09 06:29:44,973 INFO L125 PetriNetUnfolderBase]: For 451/451 co-relation queries the response was YES. [2024-11-09 06:29:45,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13711 conditions, 7937 events. 3439/7937 cut-off events. For 451/451 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 72643 event pairs, 1298 based on Foata normal form. 0/7055 useless extension candidates. Maximal degree in co-relation 13705. Up to 3764 conditions per place. [2024-11-09 06:29:45,065 INFO L140 encePairwiseOnDemand]: 95/119 looper letters, 47 selfloop transitions, 18 changer transitions 0/122 dead transitions. [2024-11-09 06:29:45,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 122 transitions, 400 flow [2024-11-09 06:29:45,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:29:45,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:29:45,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2024-11-09 06:29:45,067 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7030812324929971 [2024-11-09 06:29:45,067 INFO L175 Difference]: Start difference. First operand has 98 places, 93 transitions, 202 flow. Second operand 3 states and 251 transitions. [2024-11-09 06:29:45,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 122 transitions, 400 flow [2024-11-09 06:29:45,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 122 transitions, 400 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:29:45,071 INFO L231 Difference]: Finished difference. Result has 102 places, 111 transitions, 358 flow [2024-11-09 06:29:45,071 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=102, PETRI_TRANSITIONS=111} [2024-11-09 06:29:45,073 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -20 predicate places. [2024-11-09 06:29:45,073 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 111 transitions, 358 flow [2024-11-09 06:29:45,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:45,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:45,074 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:45,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:29:45,074 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 06:29:45,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:45,074 INFO L85 PathProgramCache]: Analyzing trace with hash 2014363231, now seen corresponding path program 1 times [2024-11-09 06:29:45,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:45,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684427474] [2024-11-09 06:29:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:45,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:45,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:45,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:45,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684427474] [2024-11-09 06:29:45,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684427474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:45,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:45,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:29:45,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719892107] [2024-11-09 06:29:45,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:45,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:29:45,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:45,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:29:45,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:45,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 119 [2024-11-09 06:29:45,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 111 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:45,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:45,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 119 [2024-11-09 06:29:45,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:29:46,652 INFO L124 PetriNetUnfolderBase]: 4459/10346 cut-off events. [2024-11-09 06:29:46,653 INFO L125 PetriNetUnfolderBase]: For 4808/5119 co-relation queries the response was YES. [2024-11-09 06:29:46,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23022 conditions, 10346 events. 4459/10346 cut-off events. For 4808/5119 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 99086 event pairs, 2185 based on Foata normal form. 65/9126 useless extension candidates. Maximal degree in co-relation 23014. Up to 5397 conditions per place. [2024-11-09 06:29:46,774 INFO L140 encePairwiseOnDemand]: 107/119 looper letters, 46 selfloop transitions, 20 changer transitions 0/137 dead transitions. [2024-11-09 06:29:46,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 137 transitions, 600 flow [2024-11-09 06:29:46,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:29:46,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:29:46,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2024-11-09 06:29:46,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7030812324929971 [2024-11-09 06:29:46,776 INFO L175 Difference]: Start difference. First operand has 102 places, 111 transitions, 358 flow. Second operand 3 states and 251 transitions. [2024-11-09 06:29:46,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 137 transitions, 600 flow [2024-11-09 06:29:46,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 137 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:29:46,803 INFO L231 Difference]: Finished difference. Result has 104 places, 129 transitions, 508 flow [2024-11-09 06:29:46,804 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=104, PETRI_TRANSITIONS=129} [2024-11-09 06:29:46,804 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -18 predicate places. [2024-11-09 06:29:46,804 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 129 transitions, 508 flow [2024-11-09 06:29:46,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:46,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:46,805 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] [2024-11-09 06:29:46,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:29:46,805 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 06:29:46,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:46,806 INFO L85 PathProgramCache]: Analyzing trace with hash -112455737, now seen corresponding path program 1 times [2024-11-09 06:29:46,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:46,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240696599] [2024-11-09 06:29:46,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:46,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:46,841 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 06:29:46,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:46,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240696599] [2024-11-09 06:29:46,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240696599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:46,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:46,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:29:46,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001476225] [2024-11-09 06:29:46,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:46,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:29:46,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:46,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:29:46,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:46,884 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 119 [2024-11-09 06:29:46,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 129 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:46,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:46,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 119 [2024-11-09 06:29:46,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:29:48,594 INFO L124 PetriNetUnfolderBase]: 5887/12869 cut-off events. [2024-11-09 06:29:48,595 INFO L125 PetriNetUnfolderBase]: For 10651/11284 co-relation queries the response was YES. [2024-11-09 06:29:48,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31991 conditions, 12869 events. 5887/12869 cut-off events. For 10651/11284 co-relation queries the response was YES. Maximal size of possible extension queue 604. Compared 122174 event pairs, 2461 based on Foata normal form. 93/11098 useless extension candidates. Maximal degree in co-relation 31982. Up to 6949 conditions per place. [2024-11-09 06:29:48,732 INFO L140 encePairwiseOnDemand]: 107/119 looper letters, 59 selfloop transitions, 28 changer transitions 0/160 dead transitions. [2024-11-09 06:29:48,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 160 transitions, 841 flow [2024-11-09 06:29:48,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:29:48,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:29:48,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2024-11-09 06:29:48,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7002801120448179 [2024-11-09 06:29:48,734 INFO L175 Difference]: Start difference. First operand has 104 places, 129 transitions, 508 flow. Second operand 3 states and 250 transitions. [2024-11-09 06:29:48,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 160 transitions, 841 flow [2024-11-09 06:29:48,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 160 transitions, 785 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:29:48,787 INFO L231 Difference]: Finished difference. Result has 106 places, 153 transitions, 754 flow [2024-11-09 06:29:48,787 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=754, PETRI_PLACES=106, PETRI_TRANSITIONS=153} [2024-11-09 06:29:48,788 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -16 predicate places. [2024-11-09 06:29:48,788 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 153 transitions, 754 flow [2024-11-09 06:29:48,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:48,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:48,789 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] [2024-11-09 06:29:48,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:29:48,789 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-09 06:29:48,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:48,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1812804421, now seen corresponding path program 1 times [2024-11-09 06:29:48,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:48,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668077227] [2024-11-09 06:29:48,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:48,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:29:48,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:29:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:29:48,818 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 06:29:48,819 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:29:48,820 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2024-11-09 06:29:48,820 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2024-11-09 06:29:48,820 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2024-11-09 06:29:48,820 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2024-11-09 06:29:48,820 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2024-11-09 06:29:48,820 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2024-11-09 06:29:48,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (34 of 41 remaining) [2024-11-09 06:29:48,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2024-11-09 06:29:48,821 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2024-11-09 06:29:48,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2024-11-09 06:29:48,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2024-11-09 06:29:48,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2024-11-09 06:29:48,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2024-11-09 06:29:48,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2024-11-09 06:29:48,822 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2024-11-09 06:29:48,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2024-11-09 06:29:48,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2024-11-09 06:29:48,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2024-11-09 06:29:48,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2024-11-09 06:29:48,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2024-11-09 06:29:48,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2024-11-09 06:29:48,823 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2024-11-09 06:29:48,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2024-11-09 06:29:48,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2024-11-09 06:29:48,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2024-11-09 06:29:48,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2024-11-09 06:29:48,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2024-11-09 06:29:48,824 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2024-11-09 06:29:48,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2024-11-09 06:29:48,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2024-11-09 06:29:48,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2024-11-09 06:29:48,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2024-11-09 06:29:48,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2024-11-09 06:29:48,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2024-11-09 06:29:48,825 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2024-11-09 06:29:48,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2024-11-09 06:29:48,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2024-11-09 06:29:48,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2024-11-09 06:29:48,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2024-11-09 06:29:48,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2024-11-09 06:29:48,826 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2024-11-09 06:29:48,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:29:48,827 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-09 06:29:48,827 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 06:29:48,828 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-09 06:29:48,867 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 06:29:48,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 151 transitions, 330 flow [2024-11-09 06:29:48,893 INFO L124 PetriNetUnfolderBase]: 9/193 cut-off events. [2024-11-09 06:29:48,893 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-09 06:29:48,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 193 events. 9/193 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 591 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 158. Up to 10 conditions per place. [2024-11-09 06:29:48,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 151 transitions, 330 flow [2024-11-09 06:29:48,897 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 155 places, 151 transitions, 330 flow [2024-11-09 06:29:48,898 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:29:48,898 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;@3190e25a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:29:48,899 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-09 06:29:48,901 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 06:29:48,901 INFO L124 PetriNetUnfolderBase]: 2/28 cut-off events. [2024-11-09 06:29:48,901 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 06:29:48,901 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:48,901 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:48,901 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-09 06:29:48,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:48,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1528835306, now seen corresponding path program 1 times [2024-11-09 06:29:48,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:48,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759247439] [2024-11-09 06:29:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:48,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:48,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:48,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:48,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759247439] [2024-11-09 06:29:48,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759247439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:48,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:48,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:29:48,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393387657] [2024-11-09 06:29:48,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:48,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:29:48,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:48,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:29:48,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:29:48,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 151 [2024-11-09 06:29:48,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 151 transitions, 330 flow. Second operand has 2 states, 2 states have (on average 102.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:48,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:48,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 151 [2024-11-09 06:29:48,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:29:49,680 INFO L124 PetriNetUnfolderBase]: 1848/5380 cut-off events. [2024-11-09 06:29:49,680 INFO L125 PetriNetUnfolderBase]: For 1422/1422 co-relation queries the response was YES. [2024-11-09 06:29:49,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8628 conditions, 5380 events. 1848/5380 cut-off events. For 1422/1422 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 51569 event pairs, 1720 based on Foata normal form. 781/5387 useless extension candidates. Maximal degree in co-relation 6272. Up to 2501 conditions per place. [2024-11-09 06:29:49,755 INFO L140 encePairwiseOnDemand]: 121/151 looper letters, 20 selfloop transitions, 0 changer transitions 0/118 dead transitions. [2024-11-09 06:29:49,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 118 transitions, 304 flow [2024-11-09 06:29:49,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:29:49,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 06:29:49,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 252 transitions. [2024-11-09 06:29:49,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8344370860927153 [2024-11-09 06:29:49,758 INFO L175 Difference]: Start difference. First operand has 155 places, 151 transitions, 330 flow. Second operand 2 states and 252 transitions. [2024-11-09 06:29:49,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 118 transitions, 304 flow [2024-11-09 06:29:49,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 118 transitions, 298 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-09 06:29:49,762 INFO L231 Difference]: Finished difference. Result has 124 places, 118 transitions, 258 flow [2024-11-09 06:29:49,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=258, PETRI_PLACES=124, PETRI_TRANSITIONS=118} [2024-11-09 06:29:49,764 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, -31 predicate places. [2024-11-09 06:29:49,764 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 118 transitions, 258 flow [2024-11-09 06:29:49,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 102.0) internal successors, (204), 2 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:49,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:29:49,765 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:49,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:29:49,765 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-09 06:29:49,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:49,766 INFO L85 PathProgramCache]: Analyzing trace with hash 331937901, now seen corresponding path program 1 times [2024-11-09 06:29:49,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:29:49,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471680812] [2024-11-09 06:29:49,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:49,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:29:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:29:49,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:29:49,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471680812] [2024-11-09 06:29:49,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471680812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:49,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:49,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:29:49,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094791016] [2024-11-09 06:29:49,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:49,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:29:49,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:29:49,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:29:49,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:49,846 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 151 [2024-11-09 06:29:49,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 118 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:29:49,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:29:49,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 151 [2024-11-09 06:29:49,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:30:02,261 INFO L124 PetriNetUnfolderBase]: 69719/128084 cut-off events. [2024-11-09 06:30:02,262 INFO L125 PetriNetUnfolderBase]: For 6259/6259 co-relation queries the response was YES. [2024-11-09 06:30:02,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230019 conditions, 128084 events. 69719/128084 cut-off events. For 6259/6259 co-relation queries the response was YES. Maximal size of possible extension queue 4977. Compared 1424828 event pairs, 26548 based on Foata normal form. 0/113759 useless extension candidates. Maximal degree in co-relation 230012. Up to 66562 conditions per place. [2024-11-09 06:30:04,232 INFO L140 encePairwiseOnDemand]: 119/151 looper letters, 63 selfloop transitions, 24 changer transitions 0/157 dead transitions. [2024-11-09 06:30:04,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 157 transitions, 525 flow [2024-11-09 06:30:04,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:30:04,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:30:04,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions. [2024-11-09 06:30:04,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6931567328918322 [2024-11-09 06:30:04,235 INFO L175 Difference]: Start difference. First operand has 124 places, 118 transitions, 258 flow. Second operand 3 states and 314 transitions. [2024-11-09 06:30:04,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 157 transitions, 525 flow [2024-11-09 06:30:04,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 157 transitions, 525 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 06:30:04,245 INFO L231 Difference]: Finished difference. Result has 128 places, 142 transitions, 466 flow [2024-11-09 06:30:04,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=466, PETRI_PLACES=128, PETRI_TRANSITIONS=142} [2024-11-09 06:30:04,246 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, -27 predicate places. [2024-11-09 06:30:04,246 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 142 transitions, 466 flow [2024-11-09 06:30:04,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:04,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:30:04,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:04,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:30:04,248 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-09 06:30:04,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:04,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1238505002, now seen corresponding path program 1 times [2024-11-09 06:30:04,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:30:04,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909889792] [2024-11-09 06:30:04,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:04,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:04,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:30:04,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:30:04,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909889792] [2024-11-09 06:30:04,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909889792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:04,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:04,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:30:04,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318121594] [2024-11-09 06:30:04,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:04,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:30:04,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:30:04,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:30:04,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:04,354 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 151 [2024-11-09 06:30:04,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 142 transitions, 466 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:04,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:30:04,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 151 [2024-11-09 06:30:04,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:30:22,854 INFO L124 PetriNetUnfolderBase]: 88759/169991 cut-off events. [2024-11-09 06:30:22,855 INFO L125 PetriNetUnfolderBase]: For 88573/94013 co-relation queries the response was YES. [2024-11-09 06:30:23,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396519 conditions, 169991 events. 88759/169991 cut-off events. For 88573/94013 co-relation queries the response was YES. Maximal size of possible extension queue 6352. Compared 2029608 event pairs, 45072 based on Foata normal form. 749/148527 useless extension candidates. Maximal degree in co-relation 396510. Up to 95746 conditions per place. [2024-11-09 06:30:25,148 INFO L140 encePairwiseOnDemand]: 135/151 looper letters, 62 selfloop transitions, 28 changer transitions 0/180 dead transitions. [2024-11-09 06:30:25,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 180 transitions, 809 flow [2024-11-09 06:30:25,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:30:25,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 06:30:25,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2024-11-09 06:30:25,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7019867549668874 [2024-11-09 06:30:25,150 INFO L175 Difference]: Start difference. First operand has 128 places, 142 transitions, 466 flow. Second operand 3 states and 318 transitions. [2024-11-09 06:30:25,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 180 transitions, 809 flow [2024-11-09 06:30:25,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 180 transitions, 737 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 06:30:25,672 INFO L231 Difference]: Finished difference. Result has 130 places, 168 transitions, 684 flow [2024-11-09 06:30:25,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=684, PETRI_PLACES=130, PETRI_TRANSITIONS=168} [2024-11-09 06:30:25,673 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, -25 predicate places. [2024-11-09 06:30:25,673 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 168 transitions, 684 flow [2024-11-09 06:30:25,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:25,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 06:30:25,674 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] [2024-11-09 06:30:25,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:30:25,674 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2024-11-09 06:30:25,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:25,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1353443654, now seen corresponding path program 1 times [2024-11-09 06:30:25,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 06:30:25,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345611145] [2024-11-09 06:30:25,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:25,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:30:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:25,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 06:30:25,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 06:30:25,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345611145] [2024-11-09 06:30:25,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345611145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:25,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:25,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:30:25,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830727621] [2024-11-09 06:30:25,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:25,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:30:25,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 06:30:25,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:30:25,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:30:25,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 151 [2024-11-09 06:30:25,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 168 transitions, 684 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:30:25,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 06:30:25,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 151 [2024-11-09 06:30:25,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 06:30:34,405 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([630] L717-1-->L718: Formula: (= |v_#race~value~0_1| 0) InVars {} OutVars{#race~value~0=|v_#race~value~0_1|} AuxVars[] AssignedVars[#race~value~0][74], [113#L718true, 154#true, 170#true, Black: 160#true, Black: 167#(= |#race~value~0| |thr1Thread1of4ForFork0_#t~nondet6#1|), 118#L724true, 152#true, 95#L733-6true, 158#true, 10#L719-1true, 150#true, 156#true, 90#L722-2true, 165#true]) [2024-11-09 06:30:34,405 INFO L294 olderBase$Statistics]: this new event has 70 ancestors and is cut-off event [2024-11-09 06:30:34,405 INFO L297 olderBase$Statistics]: existing Event has 70 ancestors and is cut-off event [2024-11-09 06:30:34,406 INFO L297 olderBase$Statistics]: existing Event has 70 ancestors and is cut-off event [2024-11-09 06:30:34,406 INFO L297 olderBase$Statistics]: existing Event has 70 ancestors and is cut-off event