./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.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 e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:29:18,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:29:18,206 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:29:18,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:29:18,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:29:18,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:29:18,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:29:18,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:29:18,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:29:18,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:29:18,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:29:18,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:29:18,254 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:29:18,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:29:18,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:29:18,257 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:29:18,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:29:18,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:29:18,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:29:18,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:29:18,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:29:18,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:29:18,259 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:29:18,260 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:29:18,260 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:29:18,260 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:29:18,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:29:18,261 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:29:18,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:29:18,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:29:18,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:29:18,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:29:18,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:29:18,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:29:18,263 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:29:18,264 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:29:18,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:29:18,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:29:18,264 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:29:18,264 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:29:18,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:29:18,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3884759389c7a3b94642e5e46b4f06a5e829be11d2d026f21d000ba598ae6cd [2024-11-12 12:29:18,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:29:18,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:29:18,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:29:18,567 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:29:18,567 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:29:18,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i [2024-11-12 12:29:20,020 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:29:20,277 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:29:20,279 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_09-tricky_address4.i [2024-11-12 12:29:20,299 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8cb9ad34/69d1f4623b0244d693d368312e6caf8c/FLAGabb85c3ee [2024-11-12 12:29:20,312 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8cb9ad34/69d1f4623b0244d693d368312e6caf8c [2024-11-12 12:29:20,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:29:20,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:29:20,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:29:20,319 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:29:20,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:29:20,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:20,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ac3fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20, skipping insertion in model container [2024-11-12 12:29:20,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:20,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:29:20,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:29:20,864 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:29:20,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:29:20,998 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:29:20,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20 WrapperNode [2024-11-12 12:29:20,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:29:21,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:29:21,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:29:21,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:29:21,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:21,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:21,080 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 154 [2024-11-12 12:29:21,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:29:21,081 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:29:21,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:29:21,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:29:21,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:21,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:21,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:21,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:21,113 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:21,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:21,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:21,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:21,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:29:21,131 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:29:21,131 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:29:21,131 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:29:21,132 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20" (1/1) ... [2024-11-12 12:29:21,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:29:21,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:21,203 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) [2024-11-12 12:29:21,210 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 [2024-11-12 12:29:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:29:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:29:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:29:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:29:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:29:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 12:29:21,265 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 12:29:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:29:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:29:21,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:29:21,267 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:29:21,389 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:29:21,391 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:29:21,683 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:29:21,683 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:29:21,717 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:29:21,717 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 12:29:21,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:29:21 BoogieIcfgContainer [2024-11-12 12:29:21,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:29:21,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:29:21,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:29:21,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:29:21,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:29:20" (1/3) ... [2024-11-12 12:29:21,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdd3050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:29:21, skipping insertion in model container [2024-11-12 12:29:21,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:29:20" (2/3) ... [2024-11-12 12:29:21,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bdd3050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:29:21, skipping insertion in model container [2024-11-12 12:29:21,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:29:21" (3/3) ... [2024-11-12 12:29:21,726 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_09-tricky_address4.i [2024-11-12 12:29:21,738 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:29:21,739 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-12 12:29:21,739 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:29:21,816 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 12:29:21,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 164 transitions, 332 flow [2024-11-12 12:29:21,920 INFO L124 PetriNetUnfolderBase]: 4/163 cut-off events. [2024-11-12 12:29:21,920 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:29:21,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 163 events. 4/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2024-11-12 12:29:21,926 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 164 transitions, 332 flow [2024-11-12 12:29:21,932 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 163 transitions, 329 flow [2024-11-12 12:29:21,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:29:21,950 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;@75f1425e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:29:21,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-12 12:29:21,978 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:29:21,979 INFO L124 PetriNetUnfolderBase]: 4/113 cut-off events. [2024-11-12 12:29:21,979 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:29:21,979 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:21,980 INFO L206 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, 1, 1, 1, 1] [2024-11-12 12:29:21,983 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-12 12:29:21,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:21,992 INFO L85 PathProgramCache]: Analyzing trace with hash 2026056588, now seen corresponding path program 1 times [2024-11-12 12:29:22,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:22,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916986490] [2024-11-12 12:29:22,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:22,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:22,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:22,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:22,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:22,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916986490] [2024-11-12 12:29:22,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916986490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:29:22,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:29:22,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:29:22,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494423498] [2024-11-12 12:29:22,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:29:22,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:29:22,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:22,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:29:22,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:29:22,507 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 164 [2024-11-12 12:29:22,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 163 transitions, 329 flow. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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) [2024-11-12 12:29:22,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:22,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 164 [2024-11-12 12:29:22,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:22,621 INFO L124 PetriNetUnfolderBase]: 7/224 cut-off events. [2024-11-12 12:29:22,622 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:29:22,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 224 events. 7/224 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 331 event pairs, 6 based on Foata normal form. 5/217 useless extension candidates. Maximal degree in co-relation 147. Up to 24 conditions per place. [2024-11-12 12:29:22,626 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 10 selfloop transitions, 2 changer transitions 1/161 dead transitions. [2024-11-12 12:29:22,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 161 transitions, 349 flow [2024-11-12 12:29:22,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:29:22,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:29:22,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 467 transitions. [2024-11-12 12:29:22,641 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9491869918699187 [2024-11-12 12:29:22,643 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 329 flow. Second operand 3 states and 467 transitions. [2024-11-12 12:29:22,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 161 transitions, 349 flow [2024-11-12 12:29:22,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 161 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:29:22,652 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 332 flow [2024-11-12 12:29:22,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2024-11-12 12:29:22,657 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 2 predicate places. [2024-11-12 12:29:22,658 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 332 flow [2024-11-12 12:29:22,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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) [2024-11-12 12:29:22,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:22,659 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:22,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:29:22,659 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-12 12:29:22,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:22,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2050415652, now seen corresponding path program 1 times [2024-11-12 12:29:22,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:22,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257106436] [2024-11-12 12:29:22,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:22,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:22,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:22,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:22,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257106436] [2024-11-12 12:29:22,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257106436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:29:22,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100917655] [2024-11-12 12:29:22,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:22,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:22,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:22,944 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) [2024-11-12 12:29:22,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 12:29:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:23,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 12:29:23,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:29:23,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:23,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:29:23,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:23,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100917655] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:29:23,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:29:23,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-12 12:29:23,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021698665] [2024-11-12 12:29:23,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:29:23,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 12:29:23,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:23,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 12:29:23,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-12 12:29:23,272 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-11-12 12:29:23,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2024-11-12 12:29:23,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:23,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-11-12 12:29:23,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:23,397 INFO L124 PetriNetUnfolderBase]: 7/230 cut-off events. [2024-11-12 12:29:23,398 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:29:23,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 230 events. 7/230 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 324 event pairs, 6 based on Foata normal form. 2/221 useless extension candidates. Maximal degree in co-relation 194. Up to 24 conditions per place. [2024-11-12 12:29:23,401 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 14 selfloop transitions, 9 changer transitions 0/168 dead transitions. [2024-11-12 12:29:23,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 396 flow [2024-11-12 12:29:23,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 12:29:23,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 12:29:23,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1348 transitions. [2024-11-12 12:29:23,409 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9132791327913279 [2024-11-12 12:29:23,409 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 332 flow. Second operand 9 states and 1348 transitions. [2024-11-12 12:29:23,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 396 flow [2024-11-12 12:29:23,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:29:23,415 INFO L231 Difference]: Finished difference. Result has 174 places, 166 transitions, 380 flow [2024-11-12 12:29:23,416 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=174, PETRI_TRANSITIONS=166} [2024-11-12 12:29:23,417 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 11 predicate places. [2024-11-12 12:29:23,417 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 166 transitions, 380 flow [2024-11-12 12:29:23,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 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) [2024-11-12 12:29:23,418 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:23,419 INFO L206 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, 1] [2024-11-12 12:29:23,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 12:29:23,623 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 [2024-11-12 12:29:23,624 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-12 12:29:23,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:23,625 INFO L85 PathProgramCache]: Analyzing trace with hash -307645988, now seen corresponding path program 2 times [2024-11-12 12:29:23,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:23,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396168398] [2024-11-12 12:29:23,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:23,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:23,883 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:23,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:23,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396168398] [2024-11-12 12:29:23,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396168398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:29:23,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069705300] [2024-11-12 12:29:23,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 12:29:23,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:23,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:23,886 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) [2024-11-12 12:29:23,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 12:29:23,996 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 12:29:23,997 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 12:29:24,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-12 12:29:24,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:29:24,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-12 12:29:24,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-12 12:29:24,111 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:29:24,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-12 12:29:24,159 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:29:24,161 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-12 12:29:24,200 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-12 12:29:24,203 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 12:29:24,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069705300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:29:24,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 12:29:24,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-12 12:29:24,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196830715] [2024-11-12 12:29:24,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:29:24,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:29:24,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:24,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:29:24,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-12 12:29:24,802 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 164 [2024-11-12 12:29:24,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 166 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 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) [2024-11-12 12:29:24,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:24,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 164 [2024-11-12 12:29:24,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:25,024 INFO L124 PetriNetUnfolderBase]: 129/685 cut-off events. [2024-11-12 12:29:25,024 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-12 12:29:25,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 685 events. 129/685 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3568 event pairs, 46 based on Foata normal form. 0/625 useless extension candidates. Maximal degree in co-relation 902. Up to 178 conditions per place. [2024-11-12 12:29:25,032 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 43 selfloop transitions, 22 changer transitions 0/207 dead transitions. [2024-11-12 12:29:25,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 207 transitions, 592 flow [2024-11-12 12:29:25,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:29:25,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:29:25,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 888 transitions. [2024-11-12 12:29:25,038 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9024390243902439 [2024-11-12 12:29:25,038 INFO L175 Difference]: Start difference. First operand has 174 places, 166 transitions, 380 flow. Second operand 6 states and 888 transitions. [2024-11-12 12:29:25,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 207 transitions, 592 flow [2024-11-12 12:29:25,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 207 transitions, 586 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-12 12:29:25,045 INFO L231 Difference]: Finished difference. Result has 182 places, 188 transitions, 520 flow [2024-11-12 12:29:25,045 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=520, PETRI_PLACES=182, PETRI_TRANSITIONS=188} [2024-11-12 12:29:25,046 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 19 predicate places. [2024-11-12 12:29:25,046 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 188 transitions, 520 flow [2024-11-12 12:29:25,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.66666666666666) internal successors, (832), 6 states have internal predecessors, (832), 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) [2024-11-12 12:29:25,047 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:25,049 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:25,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 12:29:25,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-12 12:29:25,250 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-12 12:29:25,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:25,254 INFO L85 PathProgramCache]: Analyzing trace with hash -434552530, now seen corresponding path program 1 times [2024-11-12 12:29:25,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:25,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483857329] [2024-11-12 12:29:25,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:25,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:25,475 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:25,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:25,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483857329] [2024-11-12 12:29:25,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483857329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:29:25,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959769402] [2024-11-12 12:29:25,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:25,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:25,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:25,477 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) [2024-11-12 12:29:25,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 12:29:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:25,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-12 12:29:25,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:29:25,649 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:25,650 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:29:25,752 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:25,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959769402] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:29:25,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:29:25,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-12 12:29:25,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780648515] [2024-11-12 12:29:25,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:29:25,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-12 12:29:25,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:25,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-12 12:29:25,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-12 12:29:25,790 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-11-12 12:29:25,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 188 transitions, 520 flow. Second operand has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 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) [2024-11-12 12:29:25,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:25,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-11-12 12:29:25,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:26,072 INFO L124 PetriNetUnfolderBase]: 41/506 cut-off events. [2024-11-12 12:29:26,073 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-12 12:29:26,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 506 events. 41/506 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2199 event pairs, 16 based on Foata normal form. 4/483 useless extension candidates. Maximal degree in co-relation 629. Up to 55 conditions per place. [2024-11-12 12:29:26,076 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 18 selfloop transitions, 21 changer transitions 0/206 dead transitions. [2024-11-12 12:29:26,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 206 transitions, 686 flow [2024-11-12 12:29:26,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-12 12:29:26,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-12 12:29:26,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3130 transitions. [2024-11-12 12:29:26,083 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9088269454123112 [2024-11-12 12:29:26,083 INFO L175 Difference]: Start difference. First operand has 182 places, 188 transitions, 520 flow. Second operand 21 states and 3130 transitions. [2024-11-12 12:29:26,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 206 transitions, 686 flow [2024-11-12 12:29:26,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 206 transitions, 686 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:29:26,090 INFO L231 Difference]: Finished difference. Result has 207 places, 201 transitions, 650 flow [2024-11-12 12:29:26,091 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=650, PETRI_PLACES=207, PETRI_TRANSITIONS=201} [2024-11-12 12:29:26,091 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 44 predicate places. [2024-11-12 12:29:26,092 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 201 transitions, 650 flow [2024-11-12 12:29:26,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 149.0) internal successors, (2682), 18 states have internal predecessors, (2682), 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) [2024-11-12 12:29:26,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:26,094 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:26,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 12:29:26,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:26,295 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-12 12:29:26,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:26,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1059988178, now seen corresponding path program 2 times [2024-11-12 12:29:26,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:26,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46405069] [2024-11-12 12:29:26,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:26,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:26,729 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:26,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:26,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46405069] [2024-11-12 12:29:26,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46405069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:29:26,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391326443] [2024-11-12 12:29:26,731 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 12:29:26,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:26,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:26,735 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:29:26,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 12:29:26,841 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-12 12:29:26,842 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 12:29:26,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-12 12:29:26,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:29:26,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-12 12:29:26,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-12 12:29:26,927 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:29:26,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-12 12:29:26,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-12 12:29:26,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-12 12:29:27,003 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-12 12:29:27,004 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 12:29:27,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391326443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:29:27,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 12:29:27,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-12 12:29:27,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765963597] [2024-11-12 12:29:27,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:29:27,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:29:27,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:27,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:29:27,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-12 12:29:27,488 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 164 [2024-11-12 12:29:27,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 201 transitions, 650 flow. Second operand has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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) [2024-11-12 12:29:27,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:27,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 164 [2024-11-12 12:29:27,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:27,806 INFO L124 PetriNetUnfolderBase]: 306/1340 cut-off events. [2024-11-12 12:29:27,806 INFO L125 PetriNetUnfolderBase]: For 282/292 co-relation queries the response was YES. [2024-11-12 12:29:27,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2507 conditions, 1340 events. 306/1340 cut-off events. For 282/292 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 9083 event pairs, 116 based on Foata normal form. 5/1232 useless extension candidates. Maximal degree in co-relation 2310. Up to 464 conditions per place. [2024-11-12 12:29:27,816 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 72 selfloop transitions, 36 changer transitions 2/258 dead transitions. [2024-11-12 12:29:27,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 258 transitions, 1022 flow [2024-11-12 12:29:27,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:29:27,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:29:27,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 874 transitions. [2024-11-12 12:29:27,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8882113821138211 [2024-11-12 12:29:27,819 INFO L175 Difference]: Start difference. First operand has 207 places, 201 transitions, 650 flow. Second operand 6 states and 874 transitions. [2024-11-12 12:29:27,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 258 transitions, 1022 flow [2024-11-12 12:29:27,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 258 transitions, 998 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-12 12:29:27,827 INFO L231 Difference]: Finished difference. Result has 210 places, 233 transitions, 878 flow [2024-11-12 12:29:27,827 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=878, PETRI_PLACES=210, PETRI_TRANSITIONS=233} [2024-11-12 12:29:27,830 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 47 predicate places. [2024-11-12 12:29:27,830 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 233 transitions, 878 flow [2024-11-12 12:29:27,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.66666666666666) internal successors, (802), 6 states have internal predecessors, (802), 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) [2024-11-12 12:29:27,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:27,831 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:27,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 12:29:28,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:28,032 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-12 12:29:28,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:28,033 INFO L85 PathProgramCache]: Analyzing trace with hash 949760636, now seen corresponding path program 1 times [2024-11-12 12:29:28,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:28,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566654954] [2024-11-12 12:29:28,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:28,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:28,394 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:28,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:28,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566654954] [2024-11-12 12:29:28,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566654954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 12:29:28,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899122031] [2024-11-12 12:29:28,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:28,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:28,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:29:28,398 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 12:29:28,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 12:29:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:28,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-12 12:29:28,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 12:29:28,617 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:28,618 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 12:29:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:29:28,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899122031] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 12:29:28,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 12:29:28,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-12 12:29:28,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839679494] [2024-11-12 12:29:28,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 12:29:28,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-12 12:29:28,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:28,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-12 12:29:28,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-12 12:29:28,856 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 164 [2024-11-12 12:29:28,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 233 transitions, 878 flow. Second operand has 23 states, 23 states have (on average 149.08695652173913) internal successors, (3429), 23 states have internal predecessors, (3429), 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) [2024-11-12 12:29:28,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:28,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 164 [2024-11-12 12:29:28,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:29,298 INFO L124 PetriNetUnfolderBase]: 120/944 cut-off events. [2024-11-12 12:29:29,298 INFO L125 PetriNetUnfolderBase]: For 415/415 co-relation queries the response was YES. [2024-11-12 12:29:29,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1844 conditions, 944 events. 120/944 cut-off events. For 415/415 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6007 event pairs, 33 based on Foata normal form. 3/888 useless extension candidates. Maximal degree in co-relation 1568. Up to 134 conditions per place. [2024-11-12 12:29:29,306 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 21 selfloop transitions, 30 changer transitions 0/250 dead transitions. [2024-11-12 12:29:29,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 250 transitions, 1102 flow [2024-11-12 12:29:29,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-12 12:29:29,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-12 12:29:29,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4464 transitions. [2024-11-12 12:29:29,316 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9073170731707317 [2024-11-12 12:29:29,316 INFO L175 Difference]: Start difference. First operand has 210 places, 233 transitions, 878 flow. Second operand 30 states and 4464 transitions. [2024-11-12 12:29:29,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 250 transitions, 1102 flow [2024-11-12 12:29:29,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 250 transitions, 1078 flow, removed 12 selfloop flow, removed 0 redundant places. [2024-11-12 12:29:29,325 INFO L231 Difference]: Finished difference. Result has 242 places, 243 transitions, 1006 flow [2024-11-12 12:29:29,326 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1006, PETRI_PLACES=242, PETRI_TRANSITIONS=243} [2024-11-12 12:29:29,329 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 79 predicate places. [2024-11-12 12:29:29,329 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 243 transitions, 1006 flow [2024-11-12 12:29:29,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 149.08695652173913) internal successors, (3429), 23 states have internal predecessors, (3429), 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) [2024-11-12 12:29:29,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:29,332 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:29,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 12:29:29,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 12:29:29,536 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-12 12:29:29,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:29,537 INFO L85 PathProgramCache]: Analyzing trace with hash -350299956, now seen corresponding path program 2 times [2024-11-12 12:29:29,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:29,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370122065] [2024-11-12 12:29:29,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:29,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-12 12:29:30,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:30,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370122065] [2024-11-12 12:29:30,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370122065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:29:30,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:29:30,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:29:30,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712863478] [2024-11-12 12:29:30,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:29:30,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:29:30,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:30,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:29:30,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:29:30,700 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 164 [2024-11-12 12:29:30,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 243 transitions, 1006 flow. Second operand has 6 states, 6 states have (on average 139.66666666666666) internal successors, (838), 6 states have internal predecessors, (838), 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) [2024-11-12 12:29:30,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:30,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 164 [2024-11-12 12:29:30,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:31,005 INFO L124 PetriNetUnfolderBase]: 306/1461 cut-off events. [2024-11-12 12:29:31,005 INFO L125 PetriNetUnfolderBase]: For 892/932 co-relation queries the response was YES. [2024-11-12 12:29:31,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3328 conditions, 1461 events. 306/1461 cut-off events. For 892/932 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 10371 event pairs, 72 based on Foata normal form. 10/1424 useless extension candidates. Maximal degree in co-relation 3050. Up to 456 conditions per place. [2024-11-12 12:29:31,016 INFO L140 encePairwiseOnDemand]: 153/164 looper letters, 80 selfloop transitions, 49 changer transitions 0/309 dead transitions. [2024-11-12 12:29:31,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 309 transitions, 1563 flow [2024-11-12 12:29:31,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:29:31,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:29:31,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 893 transitions. [2024-11-12 12:29:31,019 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.907520325203252 [2024-11-12 12:29:31,019 INFO L175 Difference]: Start difference. First operand has 242 places, 243 transitions, 1006 flow. Second operand 6 states and 893 transitions. [2024-11-12 12:29:31,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 309 transitions, 1563 flow [2024-11-12 12:29:31,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 309 transitions, 1517 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-12 12:29:31,031 INFO L231 Difference]: Finished difference. Result has 233 places, 284 transitions, 1376 flow [2024-11-12 12:29:31,032 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1376, PETRI_PLACES=233, PETRI_TRANSITIONS=284} [2024-11-12 12:29:31,032 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 70 predicate places. [2024-11-12 12:29:31,032 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 284 transitions, 1376 flow [2024-11-12 12:29:31,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.66666666666666) internal successors, (838), 6 states have internal predecessors, (838), 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) [2024-11-12 12:29:31,033 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:31,033 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:31,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:29:31,034 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-12 12:29:31,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:31,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1240008017, now seen corresponding path program 1 times [2024-11-12 12:29:31,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:31,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975499675] [2024-11-12 12:29:31,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:31,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:29:31,661 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-12 12:29:31,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:29:31,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975499675] [2024-11-12 12:29:31,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975499675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:29:31,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:29:31,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:29:31,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728620429] [2024-11-12 12:29:31,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:29:31,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:29:31,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:29:31,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:29:31,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:29:32,103 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 164 [2024-11-12 12:29:32,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 284 transitions, 1376 flow. Second operand has 6 states, 6 states have (on average 134.66666666666666) internal successors, (808), 6 states have internal predecessors, (808), 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) [2024-11-12 12:29:32,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:29:32,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 164 [2024-11-12 12:29:32,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:29:32,536 INFO L124 PetriNetUnfolderBase]: 579/2228 cut-off events. [2024-11-12 12:29:32,537 INFO L125 PetriNetUnfolderBase]: For 2510/2579 co-relation queries the response was YES. [2024-11-12 12:29:32,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5903 conditions, 2228 events. 579/2228 cut-off events. For 2510/2579 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 17333 event pairs, 140 based on Foata normal form. 12/2155 useless extension candidates. Maximal degree in co-relation 5642. Up to 824 conditions per place. [2024-11-12 12:29:32,554 INFO L140 encePairwiseOnDemand]: 149/164 looper letters, 119 selfloop transitions, 78 changer transitions 11/378 dead transitions. [2024-11-12 12:29:32,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 378 transitions, 2316 flow [2024-11-12 12:29:32,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:29:32,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:29:32,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 879 transitions. [2024-11-12 12:29:32,557 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8932926829268293 [2024-11-12 12:29:32,557 INFO L175 Difference]: Start difference. First operand has 233 places, 284 transitions, 1376 flow. Second operand 6 states and 879 transitions. [2024-11-12 12:29:32,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 378 transitions, 2316 flow [2024-11-12 12:29:32,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 378 transitions, 2314 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-12 12:29:32,578 INFO L231 Difference]: Finished difference. Result has 242 places, 332 transitions, 1980 flow [2024-11-12 12:29:32,579 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=1374, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1980, PETRI_PLACES=242, PETRI_TRANSITIONS=332} [2024-11-12 12:29:32,581 INFO L279 CegarLoopForPetriNet]: 163 programPoint places, 79 predicate places. [2024-11-12 12:29:32,581 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 332 transitions, 1980 flow [2024-11-12 12:29:32,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.66666666666666) internal successors, (808), 6 states have internal predecessors, (808), 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) [2024-11-12 12:29:32,581 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:29:32,582 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:29:32,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:29:32,582 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-12 12:29:32,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:29:32,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1672050417, now seen corresponding path program 1 times [2024-11-12 12:29:32,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:29:32,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24643364] [2024-11-12 12:29:32,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:29:32,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:29:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:29:32,627 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:29:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:29:32,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:29:32,701 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:29:32,702 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-12 12:29:32,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-12 12:29:32,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-12 12:29:32,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-12 12:29:32,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-12 12:29:32,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-12 12:29:32,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-12 12:29:32,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:29:32,706 INFO L421 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1] [2024-11-12 12:29:32,780 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 12:29:32,780 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 12:29:32,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:29:32 BasicIcfg [2024-11-12 12:29:32,785 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 12:29:32,786 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 12:29:32,786 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 12:29:32,786 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 12:29:32,786 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:29:21" (3/4) ... [2024-11-12 12:29:32,787 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-12 12:29:32,861 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 12:29:32,861 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 12:29:32,862 INFO L158 Benchmark]: Toolchain (without parser) took 12545.50ms. Allocated memory was 167.8MB in the beginning and 314.6MB in the end (delta: 146.8MB). Free memory was 115.7MB in the beginning and 96.7MB in the end (delta: 19.0MB). Peak memory consumption was 167.9MB. Max. memory is 16.1GB. [2024-11-12 12:29:32,862 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 167.8MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 12:29:32,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 680.71ms. Allocated memory is still 167.8MB. Free memory was 115.7MB in the beginning and 82.3MB in the end (delta: 33.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-12 12:29:32,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.62ms. Allocated memory is still 167.8MB. Free memory was 82.3MB in the beginning and 79.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 12:29:32,862 INFO L158 Benchmark]: Boogie Preprocessor took 48.56ms. Allocated memory is still 167.8MB. Free memory was 79.1MB in the beginning and 76.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 12:29:32,863 INFO L158 Benchmark]: RCFGBuilder took 587.36ms. Allocated memory is still 167.8MB. Free memory was 76.5MB in the beginning and 114.6MB in the end (delta: -38.1MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2024-11-12 12:29:32,865 INFO L158 Benchmark]: TraceAbstraction took 11064.90ms. Allocated memory was 167.8MB in the beginning and 314.6MB in the end (delta: 146.8MB). Free memory was 113.4MB in the beginning and 105.1MB in the end (delta: 8.3MB). Peak memory consumption was 156.0MB. Max. memory is 16.1GB. [2024-11-12 12:29:32,866 INFO L158 Benchmark]: Witness Printer took 75.57ms. Allocated memory is still 314.6MB. Free memory was 105.1MB in the beginning and 96.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 12:29:32,867 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 167.8MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 680.71ms. Allocated memory is still 167.8MB. Free memory was 115.7MB in the beginning and 82.3MB in the end (delta: 33.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.62ms. Allocated memory is still 167.8MB. Free memory was 82.3MB in the beginning and 79.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.56ms. Allocated memory is still 167.8MB. Free memory was 79.1MB in the beginning and 76.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 587.36ms. Allocated memory is still 167.8MB. Free memory was 76.5MB in the beginning and 114.6MB in the end (delta: -38.1MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11064.90ms. Allocated memory was 167.8MB in the beginning and 314.6MB in the end (delta: 146.8MB). Free memory was 113.4MB in the beginning and 105.1MB in the end (delta: 8.3MB). Peak memory consumption was 156.0MB. Max. memory is 16.1GB. * Witness Printer took 75.57ms. Allocated memory is still 314.6MB. Free memory was 105.1MB in the beginning and 96.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 944]: Data race detected Data race detected The following path leads to a data race: [L922-L925] 0 struct s { int datum; pthread_mutex_t mutex; } a[10]; VAL [a={1:0}] [L937] 0 int i = 0; VAL [a={1:0}, i=0] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=0] [L937] 0 i++ VAL [a={1:0}, i=1] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=1] [L937] 0 i++ VAL [a={1:0}, i=2] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=2] [L937] 0 i++ VAL [a={1:0}, i=3] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=3] [L937] 0 i++ VAL [a={1:0}, i=4] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=4] [L937] 0 i++ VAL [a={1:0}, i=5] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=5] [L937] 0 i++ VAL [a={1:0}, i=6] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=6] [L937] 0 i++ VAL [a={1:0}, i=7] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=7] [L937] 0 i++ VAL [a={1:0}, i=8] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=8] [L937] 0 i++ VAL [a={1:0}, i=9] [L937] COND TRUE 0 i < 10 VAL [a={1:0}, i=9] [L937] 0 i++ VAL [a={1:0}, i=10] [L937] COND FALSE 0 !(i < 10) VAL [a={1:0}, i=10] [L939] 0 int i = __VERIFIER_nondet_int(); VAL [a={1:0}, i=9] [L940] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) VAL [\old(cond)=1, a={1:0}, cond=1] [L940] RET 0 assume_abort_if_not(0 <= i && i < 10) [L941] 0 pthread_t t1; VAL [a={1:0}, i=9] [L942] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [a={1:0}, i=9, t1=-1] [L927] 1 int i = __VERIFIER_nondet_int(); VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=8] [L928] CALL 1 assume_abort_if_not(0 <= i && i < 9) [L11] COND FALSE 1 !(!cond) VAL [\old(cond)=1, a={1:0}, cond=1] [L928] RET 1 assume_abort_if_not(0 <= i && i < 9) [L929] 1 struct s *p = &a[i]; VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=8, p={1:224}] [L931] 1 i++ VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=9, p={1:224}] [L944] EXPR 0 a[i].datum VAL [a={1:0}, i=9, t1=-1] [L944] 0 a[i].datum++ VAL [a={1:0}, i=9, t1=-1] [L932] EXPR 1 a[i].datum VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=9, p={1:224}] [L932] 1 a[i].datum++ VAL [\old(arg)={0:0}, a={1:0}, arg={0:0}, i=9, p={1:224}] [L944] 0 a[i].datum++ VAL [a={1:0}, i=9, t1=-1] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: a[i].datum++ [944] * C: a[i].datum++ [944] * C: a[i].datum++ [932] * C: a[i].datum++ [944] * C: a[i].datum++ [944] and C: a[i].datum++ [944] - UnprovableResult [Line: 944]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: 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: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: 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, 204 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: 10.9s, OverallIterations: 9, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1731 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1319 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2982 IncrementalHoareTripleChecker+Invalid, 3105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 123 mSolverCounterUnsat, 10 mSDtfsCounter, 2982 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1060 GetRequests, 931 SyntacticMatches, 11 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1980occurred in iteration=8, InterpolantAutomatonStates: 87, 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, 0.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1795 NumberOfCodeBlocks, 1745 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1966 ConstructedInterpolants, 0 QuantifiedInterpolants, 2880 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1187 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 600/1123 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! [2024-11-12 12:29:32,899 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