./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_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_09-idxsense_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 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:48:48,640 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:48:48,697 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:48:48,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:48:48,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:48:48,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:48:48,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:48:48,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:48:48,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:48:48,738 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:48:48,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:48:48,739 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:48:48,739 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:48:48,741 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:48:48,741 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:48:48,741 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:48:48,741 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:48:48,742 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:48:48,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:48:48,745 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:48:48,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:48:48,745 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:48:48,745 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:48:48,745 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:48:48,746 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:48:48,746 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:48:48,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:48:48,746 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:48:48,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:48:48,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:48:48,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:48:48,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:48:48,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:48:48,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:48:48,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:48:48,747 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:48:48,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:48:48,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:48:48,747 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:48:48,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:48:48,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:48:48,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f [2024-11-22 17:48:48,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:48:48,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:48:48,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:48:48,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:48:48,975 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:48:48,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2024-11-22 17:48:50,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:48:50,414 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:48:50,415 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2024-11-22 17:48:50,431 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5f6bff8/3b23aaf30b914580b54f10e5a1a7bf24/FLAGbb81ff9af [2024-11-22 17:48:50,761 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e5f6bff8/3b23aaf30b914580b54f10e5a1a7bf24 [2024-11-22 17:48:50,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:48:50,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:48:50,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:48:50,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:48:50,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:48:50,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:48:50" (1/1) ... [2024-11-22 17:48:50,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8ba734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:50, skipping insertion in model container [2024-11-22 17:48:50,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:48:50" (1/1) ... [2024-11-22 17:48:50,818 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:48:51,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:48:51,093 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:48:51,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:48:51,158 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:48:51,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51 WrapperNode [2024-11-22 17:48:51,159 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:48:51,160 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:48:51,160 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:48:51,161 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:48:51,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51" (1/1) ... [2024-11-22 17:48:51,181 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51" (1/1) ... [2024-11-22 17:48:51,208 INFO L138 Inliner]: procedures = 162, calls = 73, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 110 [2024-11-22 17:48:51,209 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:48:51,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:48:51,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:48:51,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:48:51,217 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51" (1/1) ... [2024-11-22 17:48:51,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51" (1/1) ... [2024-11-22 17:48:51,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51" (1/1) ... [2024-11-22 17:48:51,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51" (1/1) ... [2024-11-22 17:48:51,230 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51" (1/1) ... [2024-11-22 17:48:51,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51" (1/1) ... [2024-11-22 17:48:51,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51" (1/1) ... [2024-11-22 17:48:51,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51" (1/1) ... [2024-11-22 17:48:51,240 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:48:51,241 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:48:51,241 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:48:51,241 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:48:51,242 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51" (1/1) ... [2024-11-22 17:48:51,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:48:51,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:51,277 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 17:48:51,279 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 17:48:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:48:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:48:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:48:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:48:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-22 17:48:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-22 17:48:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:48:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:48:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:48:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:48:51,321 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 17:48:51,438 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:48:51,439 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:48:51,646 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:48:51,646 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:48:51,672 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:48:51,673 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 17:48:51,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:51 BoogieIcfgContainer [2024-11-22 17:48:51,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:48:51,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:48:51,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:48:51,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:48:51,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:48:50" (1/3) ... [2024-11-22 17:48:51,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e8cff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:48:51, skipping insertion in model container [2024-11-22 17:48:51,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:48:51" (2/3) ... [2024-11-22 17:48:51,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e8cff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:48:51, skipping insertion in model container [2024-11-22 17:48:51,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:51" (3/3) ... [2024-11-22 17:48:51,681 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_09-idxsense_rc.i [2024-11-22 17:48:51,693 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:48:51,694 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-22 17:48:51,694 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:48:51,778 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 17:48:51,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 138 transitions, 280 flow [2024-11-22 17:48:51,884 INFO L124 PetriNetUnfolderBase]: 2/137 cut-off events. [2024-11-22 17:48:51,884 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:48:51,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 137 events. 2/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2024-11-22 17:48:51,888 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 138 transitions, 280 flow [2024-11-22 17:48:51,892 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 137 transitions, 277 flow [2024-11-22 17:48:51,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:48:51,906 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;@6efd086f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:48:51,906 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-22 17:48:51,936 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:48:51,938 INFO L124 PetriNetUnfolderBase]: 2/98 cut-off events. [2024-11-22 17:48:51,938 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:48:51,938 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:51,939 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 17:48:51,939 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 17:48:51,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:51,945 INFO L85 PathProgramCache]: Analyzing trace with hash 162973442, now seen corresponding path program 1 times [2024-11-22 17:48:51,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:51,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676152034] [2024-11-22 17:48:51,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:51,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:52,284 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 17:48:52,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:52,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676152034] [2024-11-22 17:48:52,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676152034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:52,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:52,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:48:52,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895745276] [2024-11-22 17:48:52,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:52,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:48:52,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:52,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:48:52,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:48:52,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 138 [2024-11-22 17:48:52,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 137 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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 17:48:52,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:52,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 138 [2024-11-22 17:48:52,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:52,471 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2024-11-22 17:48:52,471 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:48:52,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 221 events. 7/221 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 322 event pairs, 6 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 153. Up to 24 conditions per place. [2024-11-22 17:48:52,477 INFO L140 encePairwiseOnDemand]: 134/138 looper letters, 10 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2024-11-22 17:48:52,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 137 transitions, 301 flow [2024-11-22 17:48:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:48:52,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:48:52,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2024-11-22 17:48:52,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9492753623188406 [2024-11-22 17:48:52,496 INFO L175 Difference]: Start difference. First operand has 139 places, 137 transitions, 277 flow. Second operand 3 states and 393 transitions. [2024-11-22 17:48:52,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 137 transitions, 301 flow [2024-11-22 17:48:52,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 137 transitions, 300 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:52,504 INFO L231 Difference]: Finished difference. Result has 141 places, 137 transitions, 286 flow [2024-11-22 17:48:52,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=141, PETRI_TRANSITIONS=137} [2024-11-22 17:48:52,512 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 2 predicate places. [2024-11-22 17:48:52,513 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 137 transitions, 286 flow [2024-11-22 17:48:52,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 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 17:48:52,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:52,515 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:52,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:48:52,515 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 17:48:52,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:52,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1374446208, now seen corresponding path program 1 times [2024-11-22 17:48:52,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:52,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373514335] [2024-11-22 17:48:52,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:52,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:52,699 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 17:48:52,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:52,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373514335] [2024-11-22 17:48:52,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373514335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:52,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329088522] [2024-11-22 17:48:52,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:52,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:52,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:52,702 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 17:48:52,704 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 17:48:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:52,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 17:48:52,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:52,855 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 17:48:52,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:48:52,895 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 17:48:52,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329088522] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:48:52,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:48:52,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 17:48:52,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741862821] [2024-11-22 17:48:52,897 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:48:52,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:48:52,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:52,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:48:52,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:48:52,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 138 [2024-11-22 17:48:52,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 286 flow. Second operand has 10 states, 10 states have (on average 125.0) internal successors, (1250), 10 states have internal predecessors, (1250), 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 17:48:52,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:52,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 138 [2024-11-22 17:48:52,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:53,059 INFO L124 PetriNetUnfolderBase]: 7/228 cut-off events. [2024-11-22 17:48:53,060 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:48:53,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 228 events. 7/228 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 316 event pairs, 6 based on Foata normal form. 2/217 useless extension candidates. Maximal degree in co-relation 190. Up to 24 conditions per place. [2024-11-22 17:48:53,063 INFO L140 encePairwiseOnDemand]: 132/138 looper letters, 14 selfloop transitions, 9 changer transitions 0/145 dead transitions. [2024-11-22 17:48:53,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 145 transitions, 350 flow [2024-11-22 17:48:53,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:48:53,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 17:48:53,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1132 transitions. [2024-11-22 17:48:53,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9114331723027376 [2024-11-22 17:48:53,072 INFO L175 Difference]: Start difference. First operand has 141 places, 137 transitions, 286 flow. Second operand 9 states and 1132 transitions. [2024-11-22 17:48:53,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 145 transitions, 350 flow [2024-11-22 17:48:53,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 145 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:53,076 INFO L231 Difference]: Finished difference. Result has 151 places, 143 transitions, 334 flow [2024-11-22 17:48:53,077 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=334, PETRI_PLACES=151, PETRI_TRANSITIONS=143} [2024-11-22 17:48:53,077 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 12 predicate places. [2024-11-22 17:48:53,077 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 143 transitions, 334 flow [2024-11-22 17:48:53,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.0) internal successors, (1250), 10 states have internal predecessors, (1250), 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 17:48:53,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:53,079 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, 1, 1, 1, 1, 1] [2024-11-22 17:48:53,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 17:48:53,283 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 17:48:53,284 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:53,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:53,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1096255808, now seen corresponding path program 2 times [2024-11-22 17:48:53,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:53,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739059617] [2024-11-22 17:48:53,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:48:53,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:53,312 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:48:53,312 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:53,799 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 17:48:53,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:53,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739059617] [2024-11-22 17:48:53,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739059617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:53,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:53,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:48:53,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467913675] [2024-11-22 17:48:53,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:53,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:48:53,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:53,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:48:53,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:53,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 138 [2024-11-22 17:48:53,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 143 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 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 17:48:53,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:53,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 138 [2024-11-22 17:48:53,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:54,187 INFO L124 PetriNetUnfolderBase]: 261/1003 cut-off events. [2024-11-22 17:48:54,187 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-22 17:48:54,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 1003 events. 261/1003 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5963 event pairs, 67 based on Foata normal form. 0/966 useless extension candidates. Maximal degree in co-relation 1492. Up to 257 conditions per place. [2024-11-22 17:48:54,198 INFO L140 encePairwiseOnDemand]: 116/138 looper letters, 88 selfloop transitions, 42 changer transitions 0/245 dead transitions. [2024-11-22 17:48:54,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 245 transitions, 798 flow [2024-11-22 17:48:54,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:48:54,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:48:54,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 786 transitions. [2024-11-22 17:48:54,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9492753623188406 [2024-11-22 17:48:54,200 INFO L175 Difference]: Start difference. First operand has 151 places, 143 transitions, 334 flow. Second operand 6 states and 786 transitions. [2024-11-22 17:48:54,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 245 transitions, 798 flow [2024-11-22 17:48:54,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 245 transitions, 792 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-22 17:48:54,205 INFO L231 Difference]: Finished difference. Result has 160 places, 189 transitions, 644 flow [2024-11-22 17:48:54,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=644, PETRI_PLACES=160, PETRI_TRANSITIONS=189} [2024-11-22 17:48:54,208 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 21 predicate places. [2024-11-22 17:48:54,208 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 189 transitions, 644 flow [2024-11-22 17:48:54,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 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 17:48:54,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:54,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:54,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:48:54,209 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:54,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:54,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1131837115, now seen corresponding path program 1 times [2024-11-22 17:48:54,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:54,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476659468] [2024-11-22 17:48:54,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:54,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:54,392 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 17:48:54,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:54,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476659468] [2024-11-22 17:48:54,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476659468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:54,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173886269] [2024-11-22 17:48:54,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:54,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:54,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:54,395 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 17:48:54,397 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 17:48:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:54,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 17:48:54,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:54,515 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 17:48:54,517 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:48:54,608 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 17:48:54,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173886269] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:48:54,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:48:54,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-22 17:48:54,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899521470] [2024-11-22 17:48:54,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:48:54,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 17:48:54,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:54,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 17:48:54,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-22 17:48:54,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 138 [2024-11-22 17:48:54,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 189 transitions, 644 flow. Second operand has 18 states, 18 states have (on average 125.0) internal successors, (2250), 18 states have internal predecessors, (2250), 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 17:48:54,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:54,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 138 [2024-11-22 17:48:54,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:54,883 INFO L124 PetriNetUnfolderBase]: 123/770 cut-off events. [2024-11-22 17:48:54,883 INFO L125 PetriNetUnfolderBase]: For 129/144 co-relation queries the response was YES. [2024-11-22 17:48:54,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 770 events. 123/770 cut-off events. For 129/144 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4489 event pairs, 41 based on Foata normal form. 4/757 useless extension candidates. Maximal degree in co-relation 1250. Up to 126 conditions per place. [2024-11-22 17:48:54,888 INFO L140 encePairwiseOnDemand]: 132/138 looper letters, 18 selfloop transitions, 21 changer transitions 0/207 dead transitions. [2024-11-22 17:48:54,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 207 transitions, 810 flow [2024-11-22 17:48:54,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 17:48:54,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-22 17:48:54,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2626 transitions. [2024-11-22 17:48:54,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9061421670117322 [2024-11-22 17:48:54,907 INFO L175 Difference]: Start difference. First operand has 160 places, 189 transitions, 644 flow. Second operand 21 states and 2626 transitions. [2024-11-22 17:48:54,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 207 transitions, 810 flow [2024-11-22 17:48:54,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 207 transitions, 810 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:48:54,915 INFO L231 Difference]: Finished difference. Result has 185 places, 202 transitions, 774 flow [2024-11-22 17:48:54,915 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=774, PETRI_PLACES=185, PETRI_TRANSITIONS=202} [2024-11-22 17:48:54,916 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 46 predicate places. [2024-11-22 17:48:54,917 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 202 transitions, 774 flow [2024-11-22 17:48:54,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.0) internal successors, (2250), 18 states have internal predecessors, (2250), 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 17:48:54,918 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:54,919 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:54,929 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 17:48:55,119 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,SelfDestructingSolverStorable3 [2024-11-22 17:48:55,120 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:55,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:55,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1590758341, now seen corresponding path program 2 times [2024-11-22 17:48:55,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:55,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372422902] [2024-11-22 17:48:55,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:48:55,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:55,140 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:48:55,140 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-22 17:48:55,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:55,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372422902] [2024-11-22 17:48:55,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372422902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:55,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:55,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:48:55,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966177042] [2024-11-22 17:48:55,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:55,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:48:55,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:55,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:48:55,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:55,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 138 [2024-11-22 17:48:55,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 202 transitions, 774 flow. Second operand has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 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 17:48:55,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:55,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 138 [2024-11-22 17:48:55,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:55,889 INFO L124 PetriNetUnfolderBase]: 417/1422 cut-off events. [2024-11-22 17:48:55,889 INFO L125 PetriNetUnfolderBase]: For 645/680 co-relation queries the response was YES. [2024-11-22 17:48:55,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3426 conditions, 1422 events. 417/1422 cut-off events. For 645/680 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9203 event pairs, 108 based on Foata normal form. 21/1426 useless extension candidates. Maximal degree in co-relation 3228. Up to 602 conditions per place. [2024-11-22 17:48:55,897 INFO L140 encePairwiseOnDemand]: 121/138 looper letters, 99 selfloop transitions, 53 changer transitions 6/285 dead transitions. [2024-11-22 17:48:55,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 285 transitions, 1442 flow [2024-11-22 17:48:55,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:48:55,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:48:55,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 746 transitions. [2024-11-22 17:48:55,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9009661835748792 [2024-11-22 17:48:55,901 INFO L175 Difference]: Start difference. First operand has 185 places, 202 transitions, 774 flow. Second operand 6 states and 746 transitions. [2024-11-22 17:48:55,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 285 transitions, 1442 flow [2024-11-22 17:48:55,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 285 transitions, 1418 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-22 17:48:55,912 INFO L231 Difference]: Finished difference. Result has 189 places, 253 transitions, 1256 flow [2024-11-22 17:48:55,913 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1256, PETRI_PLACES=189, PETRI_TRANSITIONS=253} [2024-11-22 17:48:55,914 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 50 predicate places. [2024-11-22 17:48:55,915 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 253 transitions, 1256 flow [2024-11-22 17:48:55,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 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 17:48:55,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:55,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:55,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:48:55,916 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:55,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:55,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1125053327, now seen corresponding path program 1 times [2024-11-22 17:48:55,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:55,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123219639] [2024-11-22 17:48:55,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:55,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:56,168 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 17:48:56,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:56,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123219639] [2024-11-22 17:48:56,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123219639] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:48:56,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475459829] [2024-11-22 17:48:56,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:56,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:56,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:48:56,171 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 17:48:56,172 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 17:48:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:48:56,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-22 17:48:56,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:48:56,308 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 17:48:56,308 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:48:56,475 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 17:48:56,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475459829] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:48:56,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:48:56,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-22 17:48:56,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404079423] [2024-11-22 17:48:56,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:48:56,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-22 17:48:56,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:56,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-22 17:48:56,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-22 17:48:56,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 138 [2024-11-22 17:48:56,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 253 transitions, 1256 flow. Second operand has 23 states, 23 states have (on average 125.08695652173913) internal successors, (2877), 23 states have internal predecessors, (2877), 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 17:48:56,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:56,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 138 [2024-11-22 17:48:56,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:56,847 INFO L124 PetriNetUnfolderBase]: 227/1128 cut-off events. [2024-11-22 17:48:56,847 INFO L125 PetriNetUnfolderBase]: For 978/1007 co-relation queries the response was YES. [2024-11-22 17:48:56,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2849 conditions, 1128 events. 227/1128 cut-off events. For 978/1007 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7358 event pairs, 39 based on Foata normal form. 7/1121 useless extension candidates. Maximal degree in co-relation 2571. Up to 212 conditions per place. [2024-11-22 17:48:56,853 INFO L140 encePairwiseOnDemand]: 132/138 looper letters, 21 selfloop transitions, 30 changer transitions 0/270 dead transitions. [2024-11-22 17:48:56,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 270 transitions, 1480 flow [2024-11-22 17:48:56,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-22 17:48:56,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-22 17:48:56,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3744 transitions. [2024-11-22 17:48:56,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9043478260869565 [2024-11-22 17:48:56,859 INFO L175 Difference]: Start difference. First operand has 189 places, 253 transitions, 1256 flow. Second operand 30 states and 3744 transitions. [2024-11-22 17:48:56,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 270 transitions, 1480 flow [2024-11-22 17:48:56,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 270 transitions, 1472 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-22 17:48:56,867 INFO L231 Difference]: Finished difference. Result has 222 places, 263 transitions, 1400 flow [2024-11-22 17:48:56,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=1248, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1400, PETRI_PLACES=222, PETRI_TRANSITIONS=263} [2024-11-22 17:48:56,868 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 83 predicate places. [2024-11-22 17:48:56,868 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 263 transitions, 1400 flow [2024-11-22 17:48:56,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 125.08695652173913) internal successors, (2877), 23 states have internal predecessors, (2877), 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 17:48:56,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:56,870 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:56,877 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 17:48:57,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:48:57,075 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 17:48:57,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:57,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1161396659, now seen corresponding path program 2 times [2024-11-22 17:48:57,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:57,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618106311] [2024-11-22 17:48:57,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 17:48:57,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:57,091 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 17:48:57,091 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 17:48:57,350 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-22 17:48:57,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:48:57,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618106311] [2024-11-22 17:48:57,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618106311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:48:57,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:48:57,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:48:57,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736277954] [2024-11-22 17:48:57,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:48:57,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:48:57,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:48:57,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:48:57,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:48:57,455 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 138 [2024-11-22 17:48:57,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 263 transitions, 1400 flow. Second operand has 6 states, 6 states have (on average 108.5) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:57,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:48:57,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 138 [2024-11-22 17:48:57,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:48:57,783 INFO L124 PetriNetUnfolderBase]: 571/1817 cut-off events. [2024-11-22 17:48:57,783 INFO L125 PetriNetUnfolderBase]: For 2403/2451 co-relation queries the response was YES. [2024-11-22 17:48:57,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5537 conditions, 1817 events. 571/1817 cut-off events. For 2403/2451 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 12259 event pairs, 127 based on Foata normal form. 25/1817 useless extension candidates. Maximal degree in co-relation 5256. Up to 841 conditions per place. [2024-11-22 17:48:57,792 INFO L140 encePairwiseOnDemand]: 121/138 looper letters, 120 selfloop transitions, 58 changer transitions 39/355 dead transitions. [2024-11-22 17:48:57,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 355 transitions, 2358 flow [2024-11-22 17:48:57,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:48:57,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:48:57,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 736 transitions. [2024-11-22 17:48:57,794 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-22 17:48:57,794 INFO L175 Difference]: Start difference. First operand has 222 places, 263 transitions, 1400 flow. Second operand 6 states and 736 transitions. [2024-11-22 17:48:57,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 355 transitions, 2358 flow [2024-11-22 17:48:57,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 355 transitions, 2312 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-22 17:48:57,805 INFO L231 Difference]: Finished difference. Result has 213 places, 290 transitions, 1762 flow [2024-11-22 17:48:57,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=1354, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1762, PETRI_PLACES=213, PETRI_TRANSITIONS=290} [2024-11-22 17:48:57,806 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 74 predicate places. [2024-11-22 17:48:57,806 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 290 transitions, 1762 flow [2024-11-22 17:48:57,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.5) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:48:57,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:48:57,807 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 17:48:57,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:48:57,807 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 17:48:57,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:48:57,807 INFO L85 PathProgramCache]: Analyzing trace with hash -803169851, now seen corresponding path program 1 times [2024-11-22 17:48:57,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:48:57,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954405290] [2024-11-22 17:48:57,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:48:57,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:48:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:48:57,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:48:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:48:57,884 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:48:57,885 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:48:57,885 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-22 17:48:57,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-22 17:48:57,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-22 17:48:57,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-22 17:48:57,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-22 17:48:57,887 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-22 17:48:57,888 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-22 17:48:57,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 17:48:57,888 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2024-11-22 17:48:57,949 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 17:48:57,949 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 17:48:57,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 05:48:57 BasicIcfg [2024-11-22 17:48:57,954 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 17:48:57,954 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 17:48:57,954 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 17:48:57,954 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 17:48:57,955 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:48:51" (3/4) ... [2024-11-22 17:48:57,958 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-22 17:48:58,006 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 17:48:58,007 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 17:48:58,007 INFO L158 Benchmark]: Toolchain (without parser) took 7242.71ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 105.2MB in the beginning and 163.0MB in the end (delta: -57.8MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2024-11-22 17:48:58,007 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 17:48:58,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.05ms. Allocated memory is still 178.3MB. Free memory was 105.2MB in the beginning and 81.2MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-22 17:48:58,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.96ms. Allocated memory is still 178.3MB. Free memory was 81.2MB in the beginning and 78.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 17:48:58,008 INFO L158 Benchmark]: Boogie Preprocessor took 30.91ms. Allocated memory is still 178.3MB. Free memory was 78.7MB in the beginning and 76.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 17:48:58,008 INFO L158 Benchmark]: RCFGBuilder took 433.01ms. Allocated memory is still 178.3MB. Free memory was 76.7MB in the beginning and 55.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-22 17:48:58,008 INFO L158 Benchmark]: TraceAbstraction took 6278.07ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 55.3MB in the beginning and 170.3MB in the end (delta: -115.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 17:48:58,009 INFO L158 Benchmark]: Witness Printer took 52.52ms. Allocated memory is still 257.9MB. Free memory was 170.3MB in the beginning and 163.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-22 17:48:58,010 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.05ms. Allocated memory is still 178.3MB. Free memory was 105.2MB in the beginning and 81.2MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.96ms. Allocated memory is still 178.3MB. Free memory was 81.2MB in the beginning and 78.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.91ms. Allocated memory is still 178.3MB. Free memory was 78.7MB in the beginning and 76.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.01ms. Allocated memory is still 178.3MB. Free memory was 76.7MB in the beginning and 55.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6278.07ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 55.3MB in the beginning and 170.3MB in the end (delta: -115.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 52.52ms. Allocated memory is still 257.9MB. Free memory was 170.3MB in the beginning and 163.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. 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[10]; VAL [data={1:0}] [L680] 0 pthread_mutex_t m[10]; VAL [data={1:0}, m={2:0}] [L688] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=0, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=1, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=2, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=3, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=4, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=5, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=6, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=7, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=8, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=9, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L688] COND FALSE 0 !(i < 10) VAL [data={1:0}, i=10, m={2:0}] [L690] 0 pthread_t id; VAL [data={1:0}, m={2:0}] [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, data={1:0}, id=-1, m={2:0}] [L683] EXPR 1 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L683] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] EXPR 0 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1, m={2:0}] [L693] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1, m={2:0}] [L683] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1, m={2:0}] [L683] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [683] and C: data[4]++ [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, 165 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: 6.1s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 462 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 370 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1172 IncrementalHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 123 mSolverCounterUnsat, 18 mSDtfsCounter, 1172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 734 GetRequests, 631 SyntacticMatches, 11 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1762occurred in iteration=7, InterpolantAutomatonStates: 81, 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, 2.3s InterpolantComputationTime, 1260 NumberOfCodeBlocks, 1160 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1425 ConstructedInterpolants, 0 QuantifiedInterpolants, 2042 SizeOfPredicates, 22 NumberOfNonLiveVariables, 752 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 365/758 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 17:48:58,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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