/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/ldv-races/race-1_2b-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 16:24:38,729 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 16:24:38,796 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 16:24:38,800 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 16:24:38,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 16:24:38,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 16:24:38,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 16:24:38,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 16:24:38,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 16:24:38,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 16:24:38,831 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 16:24:38,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 16:24:38,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 16:24:38,833 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 16:24:38,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 16:24:38,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 16:24:38,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 16:24:38,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 16:24:38,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 16:24:38,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 16:24:38,834 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 16:24:38,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 16:24:38,834 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 16:24:38,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 16:24:38,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 16:24:38,835 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 16:24:38,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 16:24:38,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 16:24:38,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 16:24:38,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 16:24:38,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 16:24:38,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 16:24:38,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 16:24:38,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 16:24:38,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 16:24:38,837 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 16:24:39,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 16:24:39,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 16:24:39,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 16:24:39,091 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 16:24:39,092 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 16:24:39,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2023-08-25 16:24:40,020 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 16:24:40,281 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 16:24:40,281 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2023-08-25 16:24:40,297 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92da28324/c9e2181373e0491db259ec750db14040/FLAG1e709ed97 [2023-08-25 16:24:40,309 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92da28324/c9e2181373e0491db259ec750db14040 [2023-08-25 16:24:40,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 16:24:40,313 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 16:24:40,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 16:24:40,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 16:24:40,317 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 16:24:40,318 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:40,319 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@573a653e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40, skipping insertion in model container [2023-08-25 16:24:40,319 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:40,369 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 16:24:40,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 16:24:40,870 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 16:24:40,887 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-25 16:24:40,888 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-25 16:24:40,894 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [729] [2023-08-25 16:24:40,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 16:24:40,976 INFO L206 MainTranslator]: Completed translation [2023-08-25 16:24:40,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40 WrapperNode [2023-08-25 16:24:40,976 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 16:24:40,977 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 16:24:40,977 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 16:24:40,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 16:24:40,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:41,007 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:41,029 INFO L138 Inliner]: procedures = 480, calls = 28, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 127 [2023-08-25 16:24:41,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 16:24:41,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 16:24:41,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 16:24:41,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 16:24:41,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:41,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:41,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:41,038 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:41,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:41,046 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:41,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:41,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:41,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 16:24:41,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 16:24:41,053 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 16:24:41,053 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 16:24:41,054 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40" (1/1) ... [2023-08-25 16:24:41,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 16:24:41,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 16:24:41,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 16:24:41,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 16:24:41,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 16:24:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 16:24:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 16:24:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 16:24:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 16:24:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 16:24:41,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 16:24:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 16:24:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 16:24:41,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 16:24:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 16:24:41,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 16:24:41,109 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 16:24:41,277 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 16:24:41,278 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 16:24:41,417 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 16:24:41,422 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 16:24:41,422 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 16:24:41,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:24:41 BoogieIcfgContainer [2023-08-25 16:24:41,424 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 16:24:41,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 16:24:41,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 16:24:41,427 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 16:24:41,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 04:24:40" (1/3) ... [2023-08-25 16:24:41,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0937a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:24:41, skipping insertion in model container [2023-08-25 16:24:41,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 04:24:40" (2/3) ... [2023-08-25 16:24:41,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0937a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 04:24:41, skipping insertion in model container [2023-08-25 16:24:41,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 04:24:41" (3/3) ... [2023-08-25 16:24:41,429 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2023-08-25 16:24:41,439 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 16:24:41,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-25 16:24:41,440 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 16:24:41,471 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 16:24:41,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 154 places, 160 transitions, 328 flow [2023-08-25 16:24:41,543 INFO L124 PetriNetUnfolderBase]: 9/177 cut-off events. [2023-08-25 16:24:41,543 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 16:24:41,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 177 events. 9/177 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 273 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 93. Up to 3 conditions per place. [2023-08-25 16:24:41,546 INFO L82 GeneralOperation]: Start removeDead. Operand has 154 places, 160 transitions, 328 flow [2023-08-25 16:24:41,549 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 150 transitions, 306 flow [2023-08-25 16:24:41,551 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 16:24:41,557 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 150 transitions, 306 flow [2023-08-25 16:24:41,559 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 150 transitions, 306 flow [2023-08-25 16:24:41,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 150 transitions, 306 flow [2023-08-25 16:24:41,578 INFO L124 PetriNetUnfolderBase]: 6/168 cut-off events. [2023-08-25 16:24:41,579 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 16:24:41,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 168 events. 6/168 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 256 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-08-25 16:24:41,580 INFO L119 LiptonReduction]: Number of co-enabled transitions 1008 [2023-08-25 16:24:45,054 INFO L134 LiptonReduction]: Checked pairs total: 2230 [2023-08-25 16:24:45,054 INFO L136 LiptonReduction]: Total number of compositions: 177 [2023-08-25 16:24:45,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 16:24:45,067 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@70da734c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 16:24:45,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-25 16:24:45,068 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 16:24:45,068 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 16:24:45,068 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:24:45,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:24:45,068 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 16:24:45,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-25 16:24:45,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:24:45,072 INFO L85 PathProgramCache]: Analyzing trace with hash 580, now seen corresponding path program 1 times [2023-08-25 16:24:45,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:24:45,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3311321] [2023-08-25 16:24:45,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:24:45,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:24:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:24:45,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:24:45,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:24:45,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3311321] [2023-08-25 16:24:45,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3311321] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:24:45,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:24:45,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 16:24:45,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779954426] [2023-08-25 16:24:45,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:24:45,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 16:24:45,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:24:45,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 16:24:45,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 16:24:45,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 337 [2023-08-25 16:24:45,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 64 flow. Second operand has 2 states, 2 states have (on average 146.5) internal successors, (293), 2 states have internal predecessors, (293), 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) [2023-08-25 16:24:45,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:24:45,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 337 [2023-08-25 16:24:45,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:24:45,241 INFO L124 PetriNetUnfolderBase]: 18/68 cut-off events. [2023-08-25 16:24:45,241 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 16:24:45,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 68 events. 18/68 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 219 event pairs, 18 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 107. Up to 52 conditions per place. [2023-08-25 16:24:45,242 INFO L140 encePairwiseOnDemand]: 327/337 looper letters, 11 selfloop transitions, 0 changer transitions 2/19 dead transitions. [2023-08-25 16:24:45,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 19 transitions, 70 flow [2023-08-25 16:24:45,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 16:24:45,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 16:24:45,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 315 transitions. [2023-08-25 16:24:45,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46735905044510384 [2023-08-25 16:24:45,259 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 315 transitions. [2023-08-25 16:24:45,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 315 transitions. [2023-08-25 16:24:45,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:24:45,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 315 transitions. [2023-08-25 16:24:45,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 157.5) internal successors, (315), 2 states have internal predecessors, (315), 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) [2023-08-25 16:24:45,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 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) [2023-08-25 16:24:45,272 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 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) [2023-08-25 16:24:45,274 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 64 flow. Second operand 2 states and 315 transitions. [2023-08-25 16:24:45,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 19 transitions, 70 flow [2023-08-25 16:24:45,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 19 transitions, 66 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 16:24:45,276 INFO L231 Difference]: Finished difference. Result has 21 places, 17 transitions, 35 flow [2023-08-25 16:24:45,277 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=35, PETRI_PLACES=21, PETRI_TRANSITIONS=17} [2023-08-25 16:24:45,279 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -11 predicate places. [2023-08-25 16:24:45,279 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 17 transitions, 35 flow [2023-08-25 16:24:45,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 146.5) internal successors, (293), 2 states have internal predecessors, (293), 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) [2023-08-25 16:24:45,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:24:45,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 16:24:45,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 16:24:45,280 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-25 16:24:45,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:24:45,284 INFO L85 PathProgramCache]: Analyzing trace with hash 557660584, now seen corresponding path program 1 times [2023-08-25 16:24:45,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:24:45,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079384195] [2023-08-25 16:24:45,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:24:45,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:24:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:24:45,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:24:45,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:24:45,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079384195] [2023-08-25 16:24:45,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079384195] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:24:45,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:24:45,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 16:24:45,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444003863] [2023-08-25 16:24:45,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:24:45,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:24:45,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:24:45,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:24:45,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:24:45,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 337 [2023-08-25 16:24:45,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 17 transitions, 35 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2023-08-25 16:24:45,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:24:45,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 337 [2023-08-25 16:24:45,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:24:45,421 INFO L124 PetriNetUnfolderBase]: 51/120 cut-off events. [2023-08-25 16:24:45,421 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 16:24:45,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 120 events. 51/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 404 event pairs, 30 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 241. Up to 100 conditions per place. [2023-08-25 16:24:45,422 INFO L140 encePairwiseOnDemand]: 332/337 looper letters, 22 selfloop transitions, 4 changer transitions 3/29 dead transitions. [2023-08-25 16:24:45,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 29 transitions, 117 flow [2023-08-25 16:24:45,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:24:45,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:24:45,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2023-08-25 16:24:45,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3768545994065282 [2023-08-25 16:24:45,424 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 381 transitions. [2023-08-25 16:24:45,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 381 transitions. [2023-08-25 16:24:45,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:24:45,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 381 transitions. [2023-08-25 16:24:45,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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) [2023-08-25 16:24:45,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 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) [2023-08-25 16:24:45,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 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) [2023-08-25 16:24:45,428 INFO L175 Difference]: Start difference. First operand has 21 places, 17 transitions, 35 flow. Second operand 3 states and 381 transitions. [2023-08-25 16:24:45,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 29 transitions, 117 flow [2023-08-25 16:24:45,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 29 transitions, 117 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 16:24:45,429 INFO L231 Difference]: Finished difference. Result has 23 places, 20 transitions, 61 flow [2023-08-25 16:24:45,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=61, PETRI_PLACES=23, PETRI_TRANSITIONS=20} [2023-08-25 16:24:45,431 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -9 predicate places. [2023-08-25 16:24:45,431 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 20 transitions, 61 flow [2023-08-25 16:24:45,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2023-08-25 16:24:45,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:24:45,432 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 16:24:45,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 16:24:45,435 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-25 16:24:45,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:24:45,437 INFO L85 PathProgramCache]: Analyzing trace with hash 557657479, now seen corresponding path program 1 times [2023-08-25 16:24:45,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:24:45,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835467067] [2023-08-25 16:24:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:24:45,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:24:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 16:24:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 16:24:45,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 16:24:45,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835467067] [2023-08-25 16:24:45,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835467067] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 16:24:45,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 16:24:45,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 16:24:45,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820492322] [2023-08-25 16:24:45,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 16:24:45,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 16:24:45,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 16:24:45,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 16:24:45,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 16:24:45,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 337 [2023-08-25 16:24:45,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2023-08-25 16:24:45,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 16:24:45,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 337 [2023-08-25 16:24:45,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 16:24:45,544 INFO L124 PetriNetUnfolderBase]: 47/113 cut-off events. [2023-08-25 16:24:45,544 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-08-25 16:24:45,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 113 events. 47/113 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 358 event pairs, 32 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 292. Up to 107 conditions per place. [2023-08-25 16:24:45,547 INFO L140 encePairwiseOnDemand]: 333/337 looper letters, 21 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2023-08-25 16:24:45,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 25 transitions, 128 flow [2023-08-25 16:24:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 16:24:45,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 16:24:45,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions. [2023-08-25 16:24:45,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3669634025717112 [2023-08-25 16:24:45,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 371 transitions. [2023-08-25 16:24:45,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 371 transitions. [2023-08-25 16:24:45,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 16:24:45,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 371 transitions. [2023-08-25 16:24:45,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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) [2023-08-25 16:24:45,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 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) [2023-08-25 16:24:45,552 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 337.0) internal successors, (1348), 4 states have internal predecessors, (1348), 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) [2023-08-25 16:24:45,552 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 61 flow. Second operand 3 states and 371 transitions. [2023-08-25 16:24:45,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 25 transitions, 128 flow [2023-08-25 16:24:45,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 123 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 16:24:45,554 INFO L231 Difference]: Finished difference. Result has 25 places, 22 transitions, 81 flow [2023-08-25 16:24:45,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=25, PETRI_TRANSITIONS=22} [2023-08-25 16:24:45,555 INFO L281 CegarLoopForPetriNet]: 32 programPoint places, -7 predicate places. [2023-08-25 16:24:45,557 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 22 transitions, 81 flow [2023-08-25 16:24:45,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2023-08-25 16:24:45,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 16:24:45,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 16:24:45,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 16:24:45,558 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-25 16:24:45,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 16:24:45,558 INFO L85 PathProgramCache]: Analyzing trace with hash -956178137, now seen corresponding path program 1 times [2023-08-25 16:24:45,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 16:24:45,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428402096] [2023-08-25 16:24:45,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 16:24:45,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 16:24:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 16:24:45,585 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 16:24:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 16:24:45,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 16:24:45,624 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 16:24:45,625 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2023-08-25 16:24:45,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-08-25 16:24:45,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-08-25 16:24:45,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-08-25 16:24:45,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (11 of 16 remaining) [2023-08-25 16:24:45,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-08-25 16:24:45,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2023-08-25 16:24:45,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2023-08-25 16:24:45,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2023-08-25 16:24:45,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (6 of 16 remaining) [2023-08-25 16:24:45,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (5 of 16 remaining) [2023-08-25 16:24:45,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2023-08-25 16:24:45,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-08-25 16:24:45,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2023-08-25 16:24:45,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (1 of 16 remaining) [2023-08-25 16:24:45,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 16 remaining) [2023-08-25 16:24:45,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 16:24:45,629 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-25 16:24:45,632 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 16:24:45,632 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 16:24:45,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 04:24:45 BasicIcfg [2023-08-25 16:24:45,647 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 16:24:45,647 INFO L158 Benchmark]: Toolchain (without parser) took 5334.05ms. Allocated memory was 390.1MB in the beginning and 469.8MB in the end (delta: 79.7MB). Free memory was 363.2MB in the beginning and 286.9MB in the end (delta: 76.3MB). Peak memory consumption was 158.0MB. Max. memory is 16.0GB. [2023-08-25 16:24:45,648 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 390.1MB. Free memory is still 367.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 16:24:45,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 660.67ms. Allocated memory is still 390.1MB. Free memory was 362.3MB in the beginning and 309.8MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.0GB. [2023-08-25 16:24:45,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.27ms. Allocated memory is still 390.1MB. Free memory was 309.8MB in the beginning and 306.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 16:24:45,648 INFO L158 Benchmark]: Boogie Preprocessor took 23.31ms. Allocated memory is still 390.1MB. Free memory was 306.9MB in the beginning and 304.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 16:24:45,649 INFO L158 Benchmark]: RCFGBuilder took 370.43ms. Allocated memory is still 390.1MB. Free memory was 304.5MB in the beginning and 281.7MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-25 16:24:45,650 INFO L158 Benchmark]: TraceAbstraction took 4222.21ms. Allocated memory was 390.1MB in the beginning and 469.8MB in the end (delta: 79.7MB). Free memory was 281.7MB in the beginning and 286.9MB in the end (delta: -5.2MB). Peak memory consumption was 76.3MB. Max. memory is 16.0GB. [2023-08-25 16:24:45,651 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 390.1MB. Free memory is still 367.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 660.67ms. Allocated memory is still 390.1MB. Free memory was 362.3MB in the beginning and 309.8MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 52.27ms. Allocated memory is still 390.1MB. Free memory was 309.8MB in the beginning and 306.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.31ms. Allocated memory is still 390.1MB. Free memory was 306.9MB in the beginning and 304.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 370.43ms. Allocated memory is still 390.1MB. Free memory was 304.5MB in the beginning and 281.7MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 4222.21ms. Allocated memory was 390.1MB in the beginning and 469.8MB in the end (delta: 79.7MB). Free memory was 281.7MB in the beginning and 286.9MB in the end (delta: -5.2MB). Peak memory consumption was 76.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 729]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [729] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 147 PlacesBefore, 32 PlacesAfterwards, 150 TransitionsBefore, 29 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 8 FixpointIterations, 116 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 5 ConcurrentYvCompositions, 6 ChoiceCompositions, 177 TotalNumberOfCompositions, 2230 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1091, independent: 897, independent conditional: 0, independent unconditional: 897, dependent: 194, dependent conditional: 0, dependent unconditional: 194, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 539, independent: 513, independent conditional: 0, independent unconditional: 513, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1091, independent: 384, independent conditional: 0, independent unconditional: 384, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 539, unknown conditional: 0, unknown unconditional: 539] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1699]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; [L1695] 0 pthread_mutex_t mutex; [L1696] 0 int pdev; [L1726] CALL 0 module_init() [L1705] 0 pdev = 1 [L1706] EXPR 0 pdev==1 [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 2=1153, pdev = 6=1155, pdev=2, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 6=1155, pdev=2, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev = 2 [1709] and C: pdev = 6 [1699] - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1691]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 165 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=3, InterpolantAutomatonStates: 8, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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! [2023-08-25 16:24:45,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...