/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 -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/goblint-regression/05-lval_ls_14-idxunknown_access.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:17:07,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:17:07,443 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 03:17:07,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:17:07,449 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:17:07,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:17:07,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:17:07,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:17:07,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:17:07,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:17:07,490 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:17:07,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:17:07,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:17:07,491 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:17:07,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:17:07,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:17:07,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:17:07,492 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:17:07,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:17:07,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:17:07,493 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:17:07,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:17:07,494 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:17:07,494 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:17:07,494 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:17:07,494 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:17:07,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:17:07,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:17:07,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:17:07,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:17:07,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:17:07,496 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:17:07,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:17:07,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:17:07,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:17:07,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:17:07,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:17:07,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:17:07,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:17:07,802 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:17:07,803 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:17:07,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_14-idxunknown_access.i [2023-08-25 03:17:09,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:17:09,314 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:17:09,314 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_14-idxunknown_access.i [2023-08-25 03:17:09,332 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9648f34/918c8b4b9fbf4091bd4b51c7dc3f95bf/FLAG72a45270c [2023-08-25 03:17:09,345 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be9648f34/918c8b4b9fbf4091bd4b51c7dc3f95bf [2023-08-25 03:17:09,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:17:09,348 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:17:09,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:17:09,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:17:09,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:17:09,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722bda73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09, skipping insertion in model container [2023-08-25 03:17:09,355 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,400 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:17:09,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:17:09,734 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:17:09,762 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-25 03:17:09,764 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-25 03:17:09,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:17:09,825 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:17:09,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09 WrapperNode [2023-08-25 03:17:09,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:17:09,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:17:09,827 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:17:09,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:17:09,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,883 INFO L138 Inliner]: procedures = 163, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2023-08-25 03:17:09,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:17:09,885 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:17:09,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:17:09,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:17:09,892 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:17:09,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:17:09,923 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:17:09,923 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:17:09,924 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09" (1/1) ... [2023-08-25 03:17:09,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:17:09,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:17:09,956 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 03:17:09,979 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 03:17:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:17:09,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:17:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:17:09,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:17:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:17:09,997 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:17:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:17:09,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:17:09,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:17:09,998 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 03:17:10,138 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:17:10,140 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:17:10,275 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:17:10,280 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:17:10,280 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:17:10,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:17:10 BoogieIcfgContainer [2023-08-25 03:17:10,282 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:17:10,284 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:17:10,284 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:17:10,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:17:10,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:17:09" (1/3) ... [2023-08-25 03:17:10,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edadffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:17:10, skipping insertion in model container [2023-08-25 03:17:10,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:17:09" (2/3) ... [2023-08-25 03:17:10,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edadffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:17:10, skipping insertion in model container [2023-08-25 03:17:10,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:17:10" (3/3) ... [2023-08-25 03:17:10,289 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_14-idxunknown_access.i [2023-08-25 03:17:10,304 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:17:10,304 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 03:17:10,304 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:17:10,362 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:17:10,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 73 transitions, 151 flow [2023-08-25 03:17:10,423 INFO L124 PetriNetUnfolderBase]: 1/72 cut-off events. [2023-08-25 03:17:10,424 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:10,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 1/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-08-25 03:17:10,427 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 73 transitions, 151 flow [2023-08-25 03:17:10,431 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 72 transitions, 147 flow [2023-08-25 03:17:10,434 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:17:10,443 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 72 transitions, 147 flow [2023-08-25 03:17:10,446 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 72 transitions, 147 flow [2023-08-25 03:17:10,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 147 flow [2023-08-25 03:17:10,477 INFO L124 PetriNetUnfolderBase]: 1/72 cut-off events. [2023-08-25 03:17:10,478 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:10,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 1/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-08-25 03:17:10,479 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-08-25 03:17:11,946 INFO L134 LiptonReduction]: Checked pairs total: 6267 [2023-08-25 03:17:11,946 INFO L136 LiptonReduction]: Total number of compositions: 48 [2023-08-25 03:17:11,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:17:11,967 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;@59f6a114, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:17:11,967 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-25 03:17:11,972 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:17:11,972 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-08-25 03:17:11,972 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:11,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:11,973 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:11,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:11,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:11,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1052849590, now seen corresponding path program 1 times [2023-08-25 03:17:11,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:11,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174197235] [2023-08-25 03:17:11,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:11,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:12,554 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 03:17:12,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:12,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174197235] [2023-08-25 03:17:12,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174197235] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:12,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:12,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:12,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83111384] [2023-08-25 03:17:12,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:12,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:12,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:12,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:12,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:12,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 121 [2023-08-25 03:17:12,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 30 transitions, 63 flow. Second operand has 6 states, 6 states have (on average 42.333333333333336) internal successors, (254), 6 states have internal predecessors, (254), 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 03:17:12,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:12,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 121 [2023-08-25 03:17:12,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:12,956 INFO L124 PetriNetUnfolderBase]: 264/579 cut-off events. [2023-08-25 03:17:12,956 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:17:12,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 579 events. 264/579 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2699 event pairs, 112 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 1154. Up to 309 conditions per place. [2023-08-25 03:17:12,962 INFO L140 encePairwiseOnDemand]: 110/121 looper letters, 85 selfloop transitions, 22 changer transitions 0/107 dead transitions. [2023-08-25 03:17:12,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 107 transitions, 431 flow [2023-08-25 03:17:12,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:12,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 354 transitions. [2023-08-25 03:17:12,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48760330578512395 [2023-08-25 03:17:12,975 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 354 transitions. [2023-08-25 03:17:12,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 354 transitions. [2023-08-25 03:17:12,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:12,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 354 transitions. [2023-08-25 03:17:12,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 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 03:17:12,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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 03:17:12,986 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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 03:17:12,987 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 63 flow. Second operand 6 states and 354 transitions. [2023-08-25 03:17:12,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 107 transitions, 431 flow [2023-08-25 03:17:12,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 107 transitions, 430 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:17:12,992 INFO L231 Difference]: Finished difference. Result has 42 places, 52 transitions, 208 flow [2023-08-25 03:17:12,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=208, PETRI_PLACES=42, PETRI_TRANSITIONS=52} [2023-08-25 03:17:12,996 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2023-08-25 03:17:12,997 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 52 transitions, 208 flow [2023-08-25 03:17:12,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.333333333333336) internal successors, (254), 6 states have internal predecessors, (254), 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 03:17:12,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:12,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:12,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:17:12,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:12,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:12,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1454311193, now seen corresponding path program 1 times [2023-08-25 03:17:12,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:12,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863383188] [2023-08-25 03:17:12,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:12,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:13,194 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 03:17:13,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:13,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863383188] [2023-08-25 03:17:13,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863383188] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:13,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:13,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:13,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296129092] [2023-08-25 03:17:13,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:13,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:13,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:13,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:13,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:13,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 121 [2023-08-25 03:17:13,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 52 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 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 03:17:13,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:13,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 121 [2023-08-25 03:17:13,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:13,458 INFO L124 PetriNetUnfolderBase]: 333/738 cut-off events. [2023-08-25 03:17:13,458 INFO L125 PetriNetUnfolderBase]: For 286/286 co-relation queries the response was YES. [2023-08-25 03:17:13,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1888 conditions, 738 events. 333/738 cut-off events. For 286/286 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3892 event pairs, 118 based on Foata normal form. 0/648 useless extension candidates. Maximal degree in co-relation 1875. Up to 480 conditions per place. [2023-08-25 03:17:13,464 INFO L140 encePairwiseOnDemand]: 110/121 looper letters, 99 selfloop transitions, 26 changer transitions 0/125 dead transitions. [2023-08-25 03:17:13,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 125 transitions, 692 flow [2023-08-25 03:17:13,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:13,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:13,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 332 transitions. [2023-08-25 03:17:13,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4573002754820937 [2023-08-25 03:17:13,467 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 332 transitions. [2023-08-25 03:17:13,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 332 transitions. [2023-08-25 03:17:13,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:13,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 332 transitions. [2023-08-25 03:17:13,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 55.333333333333336) internal successors, (332), 6 states have internal predecessors, (332), 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 03:17:13,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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 03:17:13,471 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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 03:17:13,471 INFO L175 Difference]: Start difference. First operand has 42 places, 52 transitions, 208 flow. Second operand 6 states and 332 transitions. [2023-08-25 03:17:13,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 125 transitions, 692 flow [2023-08-25 03:17:13,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 125 transitions, 692 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:17:13,476 INFO L231 Difference]: Finished difference. Result has 51 places, 74 transitions, 386 flow [2023-08-25 03:17:13,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=386, PETRI_PLACES=51, PETRI_TRANSITIONS=74} [2023-08-25 03:17:13,477 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 17 predicate places. [2023-08-25 03:17:13,477 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 74 transitions, 386 flow [2023-08-25 03:17:13,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 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 03:17:13,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:13,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:13,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:17:13,478 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:13,479 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:13,479 INFO L85 PathProgramCache]: Analyzing trace with hash 796039600, now seen corresponding path program 1 times [2023-08-25 03:17:13,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:13,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478924293] [2023-08-25 03:17:13,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:13,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:13,712 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 03:17:13,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:13,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478924293] [2023-08-25 03:17:13,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478924293] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:13,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:13,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:13,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761666377] [2023-08-25 03:17:13,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:13,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:13,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:13,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:13,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:13,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 121 [2023-08-25 03:17:13,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 74 transitions, 386 flow. Second operand has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 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 03:17:13,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:13,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 121 [2023-08-25 03:17:13,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:14,030 INFO L124 PetriNetUnfolderBase]: 454/993 cut-off events. [2023-08-25 03:17:14,031 INFO L125 PetriNetUnfolderBase]: For 647/647 co-relation queries the response was YES. [2023-08-25 03:17:14,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2998 conditions, 993 events. 454/993 cut-off events. For 647/647 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5464 event pairs, 168 based on Foata normal form. 0/884 useless extension candidates. Maximal degree in co-relation 2980. Up to 707 conditions per place. [2023-08-25 03:17:14,038 INFO L140 encePairwiseOnDemand]: 107/121 looper letters, 109 selfloop transitions, 52 changer transitions 1/162 dead transitions. [2023-08-25 03:17:14,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 162 transitions, 1069 flow [2023-08-25 03:17:14,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:14,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:14,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 316 transitions. [2023-08-25 03:17:14,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43526170798898073 [2023-08-25 03:17:14,040 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 316 transitions. [2023-08-25 03:17:14,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 316 transitions. [2023-08-25 03:17:14,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:14,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 316 transitions. [2023-08-25 03:17:14,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 52.666666666666664) internal successors, (316), 6 states have internal predecessors, (316), 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 03:17:14,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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 03:17:14,044 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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 03:17:14,044 INFO L175 Difference]: Start difference. First operand has 51 places, 74 transitions, 386 flow. Second operand 6 states and 316 transitions. [2023-08-25 03:17:14,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 162 transitions, 1069 flow [2023-08-25 03:17:14,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 162 transitions, 1069 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:17:14,054 INFO L231 Difference]: Finished difference. Result has 60 places, 119 transitions, 817 flow [2023-08-25 03:17:14,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=817, PETRI_PLACES=60, PETRI_TRANSITIONS=119} [2023-08-25 03:17:14,056 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 26 predicate places. [2023-08-25 03:17:14,056 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 119 transitions, 817 flow [2023-08-25 03:17:14,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 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 03:17:14,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:14,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:14,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:17:14,057 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:14,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:14,057 INFO L85 PathProgramCache]: Analyzing trace with hash 555543909, now seen corresponding path program 1 times [2023-08-25 03:17:14,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:14,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488489119] [2023-08-25 03:17:14,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:14,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:17:14,277 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 03:17:14,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:17:14,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488489119] [2023-08-25 03:17:14,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488489119] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:17:14,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:17:14,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:17:14,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848840465] [2023-08-25 03:17:14,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:17:14,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:17:14,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:17:14,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:17:14,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:17:14,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 121 [2023-08-25 03:17:14,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 119 transitions, 817 flow. Second operand has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 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 03:17:14,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:17:14,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 121 [2023-08-25 03:17:14,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:17:14,652 INFO L124 PetriNetUnfolderBase]: 550/1198 cut-off events. [2023-08-25 03:17:14,652 INFO L125 PetriNetUnfolderBase]: For 1755/1755 co-relation queries the response was YES. [2023-08-25 03:17:14,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4400 conditions, 1198 events. 550/1198 cut-off events. For 1755/1755 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 6943 event pairs, 181 based on Foata normal form. 0/1130 useless extension candidates. Maximal degree in co-relation 4377. Up to 887 conditions per place. [2023-08-25 03:17:14,661 INFO L140 encePairwiseOnDemand]: 107/121 looper letters, 135 selfloop transitions, 68 changer transitions 4/207 dead transitions. [2023-08-25 03:17:14,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 207 transitions, 1723 flow [2023-08-25 03:17:14,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:17:14,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:17:14,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 334 transitions. [2023-08-25 03:17:14,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46005509641873277 [2023-08-25 03:17:14,663 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 334 transitions. [2023-08-25 03:17:14,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 334 transitions. [2023-08-25 03:17:14,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:17:14,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 334 transitions. [2023-08-25 03:17:14,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 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 03:17:14,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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 03:17:14,666 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 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 03:17:14,666 INFO L175 Difference]: Start difference. First operand has 60 places, 119 transitions, 817 flow. Second operand 6 states and 334 transitions. [2023-08-25 03:17:14,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 207 transitions, 1723 flow [2023-08-25 03:17:14,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 207 transitions, 1697 flow, removed 13 selfloop flow, removed 0 redundant places. [2023-08-25 03:17:14,680 INFO L231 Difference]: Finished difference. Result has 69 places, 162 transitions, 1352 flow [2023-08-25 03:17:14,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=791, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1352, PETRI_PLACES=69, PETRI_TRANSITIONS=162} [2023-08-25 03:17:14,681 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 35 predicate places. [2023-08-25 03:17:14,681 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 162 transitions, 1352 flow [2023-08-25 03:17:14,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 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 03:17:14,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:17:14,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:17:14,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 03:17:14,682 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 03:17:14,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:17:14,682 INFO L85 PathProgramCache]: Analyzing trace with hash 686989223, now seen corresponding path program 1 times [2023-08-25 03:17:14,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:17:14,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590471487] [2023-08-25 03:17:14,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:17:14,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:17:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:17:14,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 03:17:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:17:14,748 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 03:17:14,749 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 03:17:14,750 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-25 03:17:14,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-25 03:17:14,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-25 03:17:14,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-25 03:17:14,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-25 03:17:14,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-25 03:17:14,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-25 03:17:14,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 03:17:14,756 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-25 03:17:14,761 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:17:14,761 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:17:14,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:17:14 BasicIcfg [2023-08-25 03:17:14,799 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:17:14,800 INFO L158 Benchmark]: Toolchain (without parser) took 5451.13ms. Allocated memory was 377.5MB in the beginning and 453.0MB in the end (delta: 75.5MB). Free memory was 352.3MB in the beginning and 386.2MB in the end (delta: -33.9MB). Peak memory consumption was 42.0MB. Max. memory is 16.0GB. [2023-08-25 03:17:14,800 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 377.5MB. Free memory is still 353.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:17:14,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.96ms. Allocated memory is still 377.5MB. Free memory was 351.9MB in the beginning and 333.4MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 03:17:14,801 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.49ms. Allocated memory is still 377.5MB. Free memory was 333.4MB in the beginning and 331.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:17:14,801 INFO L158 Benchmark]: Boogie Preprocessor took 37.57ms. Allocated memory is still 377.5MB. Free memory was 331.3MB in the beginning and 329.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:17:14,801 INFO L158 Benchmark]: RCFGBuilder took 359.31ms. Allocated memory is still 377.5MB. Free memory was 329.6MB in the beginning and 314.6MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 03:17:14,802 INFO L158 Benchmark]: TraceAbstraction took 4515.02ms. Allocated memory was 377.5MB in the beginning and 453.0MB in the end (delta: 75.5MB). Free memory was 313.9MB in the beginning and 386.2MB in the end (delta: -72.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 03:17:14,803 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 377.5MB. Free memory is still 353.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 475.96ms. Allocated memory is still 377.5MB. Free memory was 351.9MB in the beginning and 333.4MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.49ms. Allocated memory is still 377.5MB. Free memory was 333.4MB in the beginning and 331.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 37.57ms. Allocated memory is still 377.5MB. Free memory was 331.3MB in the beginning and 329.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 359.31ms. Allocated memory is still 377.5MB. Free memory was 329.6MB in the beginning and 314.6MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 4515.02ms. Allocated memory was 377.5MB in the beginning and 453.0MB in the end (delta: 75.5MB). Free memory was 313.9MB in the beginning and 386.2MB in the end (delta: -72.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 75 PlacesBefore, 34 PlacesAfterwards, 72 TransitionsBefore, 30 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 6 FixpointIterations, 25 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 48 TotalNumberOfCompositions, 6267 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1459, independent: 1097, independent conditional: 0, independent unconditional: 1097, dependent: 362, dependent conditional: 0, dependent unconditional: 362, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 524, independent: 451, independent conditional: 0, independent unconditional: 451, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1459, independent: 646, independent conditional: 0, independent unconditional: 646, dependent: 289, dependent conditional: 0, dependent unconditional: 289, unknown: 524, unknown conditional: 0, unknown unconditional: 524] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 52, Positive conditional cache size: 0, Positive unconditional cache size: 52, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 686]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int data[10]; [L690] 0 int i = __VERIFIER_nondet_int(); [L691] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) [L691] RET 0 assume_abort_if_not(0 <= i && i < 10) [L692] 0 pthread_t id; [L693] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i=4, id={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L694] EXPR 0 data[i] VAL [arg={0:0}, data={1:0}, data[i]=0, i=4, id={2:0}] [L686] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L694] 0 data[i]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[i]=0, i=4, id={2:0}] [L686] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L694] 0 data[i]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[i]=0, i=4, id={2:0}] [L686] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L694] 0 data[i]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[i]=0, i=4, id={2:0}] [L686] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L694] 0 data[i]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[i]=0, i=4, id={2:0}] [L686] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] [L694] 0 data[i]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[i]++=0, data[i]++=41, data[i]=0, i=4, id={2:0}] [L686] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0] Now there is a data race (on the heap) between C: data[i]++ [694] and C: data[4]++ [686] - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: 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. - UnprovableResult [Line: 686]: 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, 97 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 118 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 908 IncrementalHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 64 mSDtfsCounter, 908 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1352occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 1.1s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 03:17:14,837 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...