./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.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 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:48:42,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:48:43,006 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:48:43,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:48:43,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:48:43,036 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:48:43,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:48:43,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:48:43,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:48:43,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:48:43,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:48:43,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:48:43,041 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:48:43,042 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:48:43,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:48:43,042 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:48:43,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:48:43,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:48:43,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:48:43,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:48:43,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:48:43,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:48:43,044 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:48:43,045 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:48:43,045 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:48:43,045 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:48:43,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:48:43,046 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:48:43,046 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:48:43,046 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:48:43,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:48:43,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:48:43,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:48:43,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:48:43,050 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:48:43,050 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:48:43,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:48:43,050 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:48:43,050 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:48:43,050 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:48:43,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:48:43,058 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 881804847426e60812f8175456032b889bbad15c60068b15698c7277211e0c6e [2024-11-22 17:48:43,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:48:43,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:48:43,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:48:43,283 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:48:43,284 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:48:43,285 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i [2024-11-22 17:48:44,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:48:44,764 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:48:44,765 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_01-idx_rc.i [2024-11-22 17:48:44,782 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ade2acb1/7f94cce2d3034421810a03a3227ffc98/FLAG71e88cf01 [2024-11-22 17:48:44,793 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ade2acb1/7f94cce2d3034421810a03a3227ffc98 [2024-11-22 17:48:44,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:48:44,796 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:48:44,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:48:44,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:48:44,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:48:44,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:48:44" (1/1) ... [2024-11-22 17:48:44,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd3e104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:44, skipping insertion in model container [2024-11-22 17:48:44,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:48:44" (1/1) ... [2024-11-22 17:48:44,838 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:48:45,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:48:45,171 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:48:45,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:48:45,245 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:48:45,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45 WrapperNode [2024-11-22 17:48:45,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:48:45,246 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:48:45,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:48:45,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:48:45,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 17:48:45,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 17:48:45,277 INFO L138 Inliner]: procedures = 162, calls = 58, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 91 [2024-11-22 17:48:45,278 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:48:45,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:48:45,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:48:45,278 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:48:45,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 17:48:45,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 17:48:45,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 17:48:45,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 17:48:45,297 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 17:48:45,300 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 17:48:45,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 17:48:45,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 17:48:45,303 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:48:45,304 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:48:45,304 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:48:45,304 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:48:45,305 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (1/1) ... [2024-11-22 17:48:45,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:48:45,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:45,334 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) [2024-11-22 17:48:45,336 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 [2024-11-22 17:48:45,368 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:48:45,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:48:45,369 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-22 17:48:45,369 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-22 17:48:45,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:48:45,369 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:48:45,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:48:45,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:48:45,370 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:48:45,456 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:48:45,458 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:48:45,649 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:48:45,649 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:48:45,671 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:48:45,671 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 17:48:45,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:45 BoogieIcfgContainer [2024-11-22 17:48:45,671 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:48:45,673 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:48:45,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:48:45,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:48:45,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:48:44" (1/3) ... [2024-11-22 17:48:45,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc86824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:48:45, skipping insertion in model container [2024-11-22 17:48:45,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:45" (2/3) ... [2024-11-22 17:48:45,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cc86824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:48:45, skipping insertion in model container [2024-11-22 17:48:45,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:45" (3/3) ... [2024-11-22 17:48:45,677 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_01-idx_rc.i [2024-11-22 17:48:45,690 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:48:45,690 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-22 17:48:45,691 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:48:45,746 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 17:48:45,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 111 transitions, 226 flow [2024-11-22 17:48:45,818 INFO L124 PetriNetUnfolderBase]: 2/110 cut-off events. [2024-11-22 17:48:45,818 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:48:45,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2024-11-22 17:48:45,823 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 111 transitions, 226 flow [2024-11-22 17:48:45,829 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 110 transitions, 223 flow [2024-11-22 17:48:45,837 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:48:45,843 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;@5f3d2f06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:48:45,843 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-22 17:48:45,867 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:48:45,867 INFO L124 PetriNetUnfolderBase]: 2/79 cut-off events. [2024-11-22 17:48:45,867 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:48:45,867 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:45,868 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:45,868 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:45,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:45,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2030175117, now seen corresponding path program 1 times [2024-11-22 17:48:45,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:45,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95819865] [2024-11-22 17:48:45,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:45,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:46,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:46,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:46,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95819865] [2024-11-22 17:48:46,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95819865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:46,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:46,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:48:46,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040038237] [2024-11-22 17:48:46,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:46,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:46,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:46,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:46,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:48:46,255 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 111 [2024-11-22 17:48:46,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 110 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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) [2024-11-22 17:48:46,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:46,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 111 [2024-11-22 17:48:46,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:46,316 INFO L124 PetriNetUnfolderBase]: 7/170 cut-off events. [2024-11-22 17:48:46,316 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:48:46,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 170 events. 7/170 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 249 event pairs, 6 based on Foata normal form. 1/159 useless extension candidates. Maximal degree in co-relation 113. Up to 24 conditions per place. [2024-11-22 17:48:46,319 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 10 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2024-11-22 17:48:46,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 247 flow [2024-11-22 17:48:46,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:46,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:46,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2024-11-22 17:48:46,333 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9369369369369369 [2024-11-22 17:48:46,335 INFO L175 Difference]: Start difference. First operand has 112 places, 110 transitions, 223 flow. Second operand 3 states and 312 transitions. [2024-11-22 17:48:46,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 247 flow [2024-11-22 17:48:46,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 110 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:46,341 INFO L231 Difference]: Finished difference. Result has 114 places, 110 transitions, 232 flow [2024-11-22 17:48:46,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=114, PETRI_TRANSITIONS=110} [2024-11-22 17:48:46,346 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 2 predicate places. [2024-11-22 17:48:46,346 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 110 transitions, 232 flow [2024-11-22 17:48:46,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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) [2024-11-22 17:48:46,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:46,347 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:46,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:48:46,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:46,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:46,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1906695851, now seen corresponding path program 1 times [2024-11-22 17:48:46,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:46,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336631454] [2024-11-22 17:48:46,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:46,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:46,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:46,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:46,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336631454] [2024-11-22 17:48:46,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336631454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:46,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244900079] [2024-11-22 17:48:46,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:46,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:46,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:46,546 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:48:46,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 17:48:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:46,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 17:48:46,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:46,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 17:48:46,656 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 17:48:46,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244900079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:46,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 17:48:46,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 17:48:46,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636490036] [2024-11-22 17:48:46,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:46,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:46,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:46,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:46,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:46,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 111 [2024-11-22 17:48:46,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 110 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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) [2024-11-22 17:48:46,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:46,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 111 [2024-11-22 17:48:46,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:46,745 INFO L124 PetriNetUnfolderBase]: 32/259 cut-off events. [2024-11-22 17:48:46,748 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:48:46,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 259 events. 32/259 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 878 event pairs, 13 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 280. Up to 44 conditions per place. [2024-11-22 17:48:46,750 INFO L140 encePairwiseOnDemand]: 103/111 looper letters, 17 selfloop transitions, 6 changer transitions 0/120 dead transitions. [2024-11-22 17:48:46,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 120 transitions, 298 flow [2024-11-22 17:48:46,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:46,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:46,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2024-11-22 17:48:46,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948948948948949 [2024-11-22 17:48:46,755 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 232 flow. Second operand 3 states and 316 transitions. [2024-11-22 17:48:46,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 120 transitions, 298 flow [2024-11-22 17:48:46,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 120 transitions, 296 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:46,759 INFO L231 Difference]: Finished difference. Result has 117 places, 116 transitions, 282 flow [2024-11-22 17:48:46,760 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=117, PETRI_TRANSITIONS=116} [2024-11-22 17:48:46,760 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 5 predicate places. [2024-11-22 17:48:46,760 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 116 transitions, 282 flow [2024-11-22 17:48:46,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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) [2024-11-22 17:48:46,761 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:46,761 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:46,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 17:48:46,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:46,962 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:46,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:46,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1257755241, now seen corresponding path program 1 times [2024-11-22 17:48:46,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:46,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577296057] [2024-11-22 17:48:46,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:46,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:47,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:47,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:47,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577296057] [2024-11-22 17:48:47,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577296057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:47,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930224987] [2024-11-22 17:48:47,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:47,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:47,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:47,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:48:47,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 17:48:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:47,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 17:48:47,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:47,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 17:48:47,134 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 17:48:47,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930224987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:47,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 17:48:47,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 17:48:47,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495140787] [2024-11-22 17:48:47,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:47,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:47,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:47,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:47,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:47,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 111 [2024-11-22 17:48:47,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 116 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) [2024-11-22 17:48:47,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:47,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 111 [2024-11-22 17:48:47,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:47,202 INFO L124 PetriNetUnfolderBase]: 47/319 cut-off events. [2024-11-22 17:48:47,202 INFO L125 PetriNetUnfolderBase]: For 89/94 co-relation queries the response was YES. [2024-11-22 17:48:47,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 319 events. 47/319 cut-off events. For 89/94 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1302 event pairs, 21 based on Foata normal form. 3/304 useless extension candidates. Maximal degree in co-relation 451. Up to 86 conditions per place. [2024-11-22 17:48:47,204 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 16 selfloop transitions, 7 changer transitions 1/123 dead transitions. [2024-11-22 17:48:47,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 123 transitions, 354 flow [2024-11-22 17:48:47,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:47,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:47,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2024-11-22 17:48:47,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.933933933933934 [2024-11-22 17:48:47,208 INFO L175 Difference]: Start difference. First operand has 117 places, 116 transitions, 282 flow. Second operand 3 states and 311 transitions. [2024-11-22 17:48:47,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 123 transitions, 354 flow [2024-11-22 17:48:47,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 123 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:48:47,212 INFO L231 Difference]: Finished difference. Result has 119 places, 121 transitions, 326 flow [2024-11-22 17:48:47,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=119, PETRI_TRANSITIONS=121} [2024-11-22 17:48:47,213 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 7 predicate places. [2024-11-22 17:48:47,213 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 121 transitions, 326 flow [2024-11-22 17:48:47,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 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) [2024-11-22 17:48:47,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:47,214 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:47,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 17:48:47,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-22 17:48:47,416 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:47,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:47,416 INFO L85 PathProgramCache]: Analyzing trace with hash -517686751, now seen corresponding path program 1 times [2024-11-22 17:48:47,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:47,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151280577] [2024-11-22 17:48:47,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:47,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:47,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:47,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:47,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151280577] [2024-11-22 17:48:47,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151280577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:47,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719087850] [2024-11-22 17:48:47,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:47,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:47,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:47,495 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:48:47,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 17:48:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:47,556 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 17:48:47,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:47,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 17:48:47,580 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 17:48:47,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719087850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:47,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 17:48:47,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 17:48:47,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873521102] [2024-11-22 17:48:47,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:47,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:47,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:47,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:47,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:47,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 111 [2024-11-22 17:48:47,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 121 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2024-11-22 17:48:47,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:47,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 111 [2024-11-22 17:48:47,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:47,651 INFO L124 PetriNetUnfolderBase]: 66/386 cut-off events. [2024-11-22 17:48:47,651 INFO L125 PetriNetUnfolderBase]: For 199/207 co-relation queries the response was YES. [2024-11-22 17:48:47,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 729 conditions, 386 events. 66/386 cut-off events. For 199/207 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1772 event pairs, 25 based on Foata normal form. 2/371 useless extension candidates. Maximal degree in co-relation 650. Up to 115 conditions per place. [2024-11-22 17:48:47,654 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 17 selfloop transitions, 7 changer transitions 7/128 dead transitions. [2024-11-22 17:48:47,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 128 transitions, 412 flow [2024-11-22 17:48:47,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:47,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:47,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2024-11-22 17:48:47,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9219219219219219 [2024-11-22 17:48:47,655 INFO L175 Difference]: Start difference. First operand has 119 places, 121 transitions, 326 flow. Second operand 3 states and 307 transitions. [2024-11-22 17:48:47,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 128 transitions, 412 flow [2024-11-22 17:48:47,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 128 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:48:47,659 INFO L231 Difference]: Finished difference. Result has 121 places, 120 transitions, 344 flow [2024-11-22 17:48:47,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=121, PETRI_TRANSITIONS=120} [2024-11-22 17:48:47,660 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 9 predicate places. [2024-11-22 17:48:47,661 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 120 transitions, 344 flow [2024-11-22 17:48:47,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2024-11-22 17:48:47,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:47,661 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:47,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 17:48:47,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:47,862 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:47,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:47,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1062936479, now seen corresponding path program 1 times [2024-11-22 17:48:47,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:47,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514915349] [2024-11-22 17:48:47,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:47,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:47,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:47,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:47,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514915349] [2024-11-22 17:48:47,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514915349] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:47,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073933592] [2024-11-22 17:48:47,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:47,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:47,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:47,954 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:48:47,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 17:48:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:48,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 17:48:48,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:48,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:48,059 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:48:48,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:48,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073933592] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:48:48,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:48:48,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 17:48:48,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111560686] [2024-11-22 17:48:48,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:48:48,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:48:48,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:48,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:48:48,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:48:48,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2024-11-22 17:48:48,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 120 transitions, 344 flow. Second operand has 10 states, 10 states have (on average 98.1) internal successors, (981), 10 states have internal predecessors, (981), 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) [2024-11-22 17:48:48,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:48,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2024-11-22 17:48:48,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:48,230 INFO L124 PetriNetUnfolderBase]: 25/318 cut-off events. [2024-11-22 17:48:48,230 INFO L125 PetriNetUnfolderBase]: For 129/129 co-relation queries the response was YES. [2024-11-22 17:48:48,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 318 events. 25/318 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1306 event pairs, 10 based on Foata normal form. 2/309 useless extension candidates. Maximal degree in co-relation 461. Up to 37 conditions per place. [2024-11-22 17:48:48,231 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 14 selfloop transitions, 9 changer transitions 0/128 dead transitions. [2024-11-22 17:48:48,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 128 transitions, 408 flow [2024-11-22 17:48:48,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:48:48,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 17:48:48,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 889 transitions. [2024-11-22 17:48:48,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8898898898898899 [2024-11-22 17:48:48,234 INFO L175 Difference]: Start difference. First operand has 121 places, 120 transitions, 344 flow. Second operand 9 states and 889 transitions. [2024-11-22 17:48:48,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 128 transitions, 408 flow [2024-11-22 17:48:48,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 128 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:48:48,238 INFO L231 Difference]: Finished difference. Result has 130 places, 126 transitions, 380 flow [2024-11-22 17:48:48,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=130, PETRI_TRANSITIONS=126} [2024-11-22 17:48:48,239 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 18 predicate places. [2024-11-22 17:48:48,240 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 126 transitions, 380 flow [2024-11-22 17:48:48,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 98.1) internal successors, (981), 10 states have internal predecessors, (981), 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) [2024-11-22 17:48:48,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:48,241 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:48,252 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 17:48:48,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:48,442 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:48,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash 828941855, now seen corresponding path program 2 times [2024-11-22 17:48:48,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:48,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747465721] [2024-11-22 17:48:48,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:48:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:48,458 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 17:48:48,458 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:48,550 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:48,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:48,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747465721] [2024-11-22 17:48:48,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747465721] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:48,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463487088] [2024-11-22 17:48:48,551 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:48:48,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:48,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:48,553 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:48:48,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 17:48:48,613 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 17:48:48,613 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:48,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 17:48:48,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:48,649 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:48:48,726 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:48,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463487088] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:48:48,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:48:48,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-22 17:48:48,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009937253] [2024-11-22 17:48:48,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:48:48,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 17:48:48,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:48,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 17:48:48,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-22 17:48:48,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2024-11-22 17:48:48,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 126 transitions, 380 flow. Second operand has 18 states, 18 states have (on average 98.05555555555556) internal successors, (1765), 18 states have internal predecessors, (1765), 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) [2024-11-22 17:48:48,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:48,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2024-11-22 17:48:48,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:48,952 INFO L124 PetriNetUnfolderBase]: 25/338 cut-off events. [2024-11-22 17:48:48,952 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-22 17:48:48,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 338 events. 25/338 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1319 event pairs, 10 based on Foata normal form. 4/331 useless extension candidates. Maximal degree in co-relation 442. Up to 37 conditions per place. [2024-11-22 17:48:48,954 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 18 selfloop transitions, 21 changer transitions 0/144 dead transitions. [2024-11-22 17:48:48,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 144 transitions, 554 flow [2024-11-22 17:48:48,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 17:48:48,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-22 17:48:48,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2059 transitions. [2024-11-22 17:48:48,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8833118833118833 [2024-11-22 17:48:48,957 INFO L175 Difference]: Start difference. First operand has 130 places, 126 transitions, 380 flow. Second operand 21 states and 2059 transitions. [2024-11-22 17:48:48,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 144 transitions, 554 flow [2024-11-22 17:48:48,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 144 transitions, 540 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:48,963 INFO L231 Difference]: Finished difference. Result has 154 places, 139 transitions, 504 flow [2024-11-22 17:48:48,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=504, PETRI_PLACES=154, PETRI_TRANSITIONS=139} [2024-11-22 17:48:48,963 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 42 predicate places. [2024-11-22 17:48:48,964 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 139 transitions, 504 flow [2024-11-22 17:48:48,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 98.05555555555556) internal successors, (1765), 18 states have internal predecessors, (1765), 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) [2024-11-22 17:48:48,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:48,965 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:48,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 17:48:49,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:49,166 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:49,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:49,167 INFO L85 PathProgramCache]: Analyzing trace with hash -951523169, now seen corresponding path program 3 times [2024-11-22 17:48:49,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:49,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012804718] [2024-11-22 17:48:49,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 17:48:49,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:49,193 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-22 17:48:49,193 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:49,445 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:49,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:49,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012804718] [2024-11-22 17:48:49,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012804718] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:49,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333926769] [2024-11-22 17:48:49,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 17:48:49,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:49,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:49,448 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:48:49,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 17:48:49,518 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-22 17:48:49,518 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:49,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 17:48:49,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:49,580 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:48:49,742 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:48:49,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333926769] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:48:49,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:48:49,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-22 17:48:49,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505554909] [2024-11-22 17:48:49,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:48:49,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-22 17:48:49,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:49,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-22 17:48:49,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-22 17:48:49,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2024-11-22 17:48:49,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 139 transitions, 504 flow. Second operand has 23 states, 23 states have (on average 98.1304347826087) internal successors, (2257), 23 states have internal predecessors, (2257), 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) [2024-11-22 17:48:49,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:49,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2024-11-22 17:48:49,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:50,071 INFO L124 PetriNetUnfolderBase]: 25/353 cut-off events. [2024-11-22 17:48:50,072 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2024-11-22 17:48:50,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 724 conditions, 353 events. 25/353 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1314 event pairs, 10 based on Foata normal form. 3/345 useless extension candidates. Maximal degree in co-relation 446. Up to 37 conditions per place. [2024-11-22 17:48:50,073 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 21 selfloop transitions, 30 changer transitions 0/156 dead transitions. [2024-11-22 17:48:50,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 156 transitions, 734 flow [2024-11-22 17:48:50,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-22 17:48:50,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-22 17:48:50,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2934 transitions. [2024-11-22 17:48:50,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8810810810810811 [2024-11-22 17:48:50,080 INFO L175 Difference]: Start difference. First operand has 154 places, 139 transitions, 504 flow. Second operand 30 states and 2934 transitions. [2024-11-22 17:48:50,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 156 transitions, 734 flow [2024-11-22 17:48:50,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 156 transitions, 704 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-22 17:48:50,085 INFO L231 Difference]: Finished difference. Result has 181 places, 149 transitions, 632 flow [2024-11-22 17:48:50,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=632, PETRI_PLACES=181, PETRI_TRANSITIONS=149} [2024-11-22 17:48:50,086 INFO L277 CegarLoopForPetriNet]: 112 programPoint places, 69 predicate places. [2024-11-22 17:48:50,087 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 149 transitions, 632 flow [2024-11-22 17:48:50,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 98.1304347826087) internal successors, (2257), 23 states have internal predecessors, (2257), 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) [2024-11-22 17:48:50,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:50,088 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:50,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 17:48:50,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:50,293 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:50,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:50,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1766108375, now seen corresponding path program 4 times [2024-11-22 17:48:50,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:50,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200475048] [2024-11-22 17:48:50,294 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 17:48:50,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:50,323 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 17:48:50,323 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-22 17:48:50,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:48:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:48:50,369 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:48:50,371 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:48:50,373 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-22 17:48:50,374 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-22 17:48:50,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-22 17:48:50,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-22 17:48:50,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-22 17:48:50,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-22 17:48:50,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-22 17:48:50,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:48:50,376 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1] [2024-11-22 17:48:50,433 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 17:48:50,433 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 17:48:50,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 05:48:50 BasicIcfg [2024-11-22 17:48:50,437 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 17:48:50,438 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 17:48:50,438 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 17:48:50,438 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 17:48:50,439 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:45" (3/4) ... [2024-11-22 17:48:50,439 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-22 17:48:50,481 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 17:48:50,481 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 17:48:50,482 INFO L158 Benchmark]: Toolchain (without parser) took 5685.72ms. Allocated memory was 169.9MB in the beginning and 272.6MB in the end (delta: 102.8MB). Free memory was 111.6MB in the beginning and 194.5MB in the end (delta: -82.9MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2024-11-22 17:48:50,482 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 169.9MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 17:48:50,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.70ms. Allocated memory is still 169.9MB. Free memory was 111.6MB in the beginning and 86.9MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-22 17:48:50,483 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.30ms. Allocated memory is still 169.9MB. Free memory was 86.9MB in the beginning and 84.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 17:48:50,483 INFO L158 Benchmark]: Boogie Preprocessor took 25.23ms. Allocated memory is still 169.9MB. Free memory was 84.9MB in the beginning and 83.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 17:48:50,483 INFO L158 Benchmark]: RCFGBuilder took 367.64ms. Allocated memory is still 169.9MB. Free memory was 83.1MB in the beginning and 66.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-22 17:48:50,483 INFO L158 Benchmark]: TraceAbstraction took 4764.81ms. Allocated memory was 169.9MB in the beginning and 272.6MB in the end (delta: 102.8MB). Free memory was 65.6MB in the beginning and 199.8MB in the end (delta: -134.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 17:48:50,484 INFO L158 Benchmark]: Witness Printer took 43.70ms. Allocated memory is still 272.6MB. Free memory was 199.8MB in the beginning and 194.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 17:48:50,485 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 169.9MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.70ms. Allocated memory is still 169.9MB. Free memory was 111.6MB in the beginning and 86.9MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.30ms. Allocated memory is still 169.9MB. Free memory was 86.9MB in the beginning and 84.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.23ms. Allocated memory is still 169.9MB. Free memory was 84.9MB in the beginning and 83.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 367.64ms. Allocated memory is still 169.9MB. Free memory was 83.1MB in the beginning and 66.0MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4764.81ms. Allocated memory was 169.9MB in the beginning and 272.6MB in the end (delta: 102.8MB). Free memory was 65.6MB in the beginning and 199.8MB in the end (delta: -134.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 43.70ms. Allocated memory is still 272.6MB. Free memory was 199.8MB in the beginning and 194.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data; VAL [data=0] [L680] 0 pthread_mutex_t m[10]; VAL [data=0, m={1:0}] [L688] 0 int i = 0; VAL [data=0, i=0, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=0, m={1:0}] [L688] 0 i++ VAL [data=0, i=1, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=1, m={1:0}] [L688] 0 i++ VAL [data=0, i=2, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=2, m={1:0}] [L688] 0 i++ VAL [data=0, i=3, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=3, m={1:0}] [L688] 0 i++ VAL [data=0, i=4, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=4, m={1:0}] [L688] 0 i++ VAL [data=0, i=5, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=5, m={1:0}] [L688] 0 i++ VAL [data=0, i=6, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=6, m={1:0}] [L688] 0 i++ VAL [data=0, i=7, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=7, m={1:0}] [L688] 0 i++ VAL [data=0, i=8, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=8, m={1:0}] [L688] 0 i++ VAL [data=0, i=9, m={1:0}] [L688] COND TRUE 0 i < 10 VAL [data=0, i=9, m={1:0}] [L688] 0 i++ VAL [data=0, i=10, m={1:0}] [L688] COND FALSE 0 !(i < 10) VAL [data=0, i=10, m={1:0}] [L690] 0 pthread_t id; VAL [data=0, m={1:0}] [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, data=0, id=-1, m={1:0}] [L683] 1 data++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, m={1:0}] [L693] 0 data++ VAL [\old(arg)={0:0}, arg={0:0}, data=0, id=-1, m={1:0}] [L683] 1 data++ VAL [\old(arg)={0:0}, arg={0:0}, data=1, m={1:0}] [L693] 0 data++ VAL [\old(arg)={0:0}, arg={0:0}, data=1, id=-1, m={1:0}] Now there is a data race on ~data~0 between C: data++ [683] and C: data++ [693] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.6s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 199 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 106 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 520 IncrementalHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 23 mSDtfsCounter, 520 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 900 GetRequests, 797 SyntacticMatches, 11 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=632occurred in iteration=7, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1262 NumberOfCodeBlocks, 1262 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1411 ConstructedInterpolants, 0 QuantifiedInterpolants, 1803 SizeOfPredicates, 23 NumberOfNonLiveVariables, 1134 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 3/399 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-22 17:48:50,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE