/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/goblint-regression/05-lval_ls_15-fldunknown_access.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:17:56,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:17:56,955 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 17:17:56,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:17:56,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:17:56,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:17:56,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:17:56,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:17:56,992 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:17:56,993 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:17:56,994 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:17:56,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:17:56,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:17:56,994 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:17:56,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:17:56,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:17:56,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:17:56,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:17:56,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:17:56,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:17:56,996 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:17:56,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:17:56,997 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:17:56,998 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:17:56,998 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:17:56,998 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:17:56,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:17:56,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:17:56,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:17:56,999 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:17:56,999 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:17:56,999 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:17:57,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:17:57,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:17:57,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:17:57,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:17:57,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:17:57,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:17:57,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:17:57,326 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:17:57,326 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:17:57,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_15-fldunknown_access.i [2023-08-25 17:17:58,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:17:58,896 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:17:58,896 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_15-fldunknown_access.i [2023-08-25 17:17:58,911 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/011c0b060/04fd8b037a4d4a3c982cd05378687721/FLAG84e1b47fd [2023-08-25 17:17:58,935 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/011c0b060/04fd8b037a4d4a3c982cd05378687721 [2023-08-25 17:17:58,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:17:58,938 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:17:58,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:17:58,939 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:17:58,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:17:58,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:17:58" (1/1) ... [2023-08-25 17:17:58,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f7d339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:58, skipping insertion in model container [2023-08-25 17:17:58,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:17:58" (1/1) ... [2023-08-25 17:17:58,979 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:17:59,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:17:59,325 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:17:59,345 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [121] [2023-08-25 17:17:59,372 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [483] [2023-08-25 17:17:59,373 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [483] [2023-08-25 17:17:59,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:17:59,440 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:17:59,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59 WrapperNode [2023-08-25 17:17:59,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:17:59,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:17:59,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:17:59,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:17:59,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59" (1/1) ... [2023-08-25 17:17:59,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59" (1/1) ... [2023-08-25 17:17:59,502 INFO L138 Inliner]: procedures = 262, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2023-08-25 17:17:59,502 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:17:59,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:17:59,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:17:59,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:17:59,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59" (1/1) ... [2023-08-25 17:17:59,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59" (1/1) ... [2023-08-25 17:17:59,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59" (1/1) ... [2023-08-25 17:17:59,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59" (1/1) ... [2023-08-25 17:17:59,536 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59" (1/1) ... [2023-08-25 17:17:59,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59" (1/1) ... [2023-08-25 17:17:59,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59" (1/1) ... [2023-08-25 17:17:59,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59" (1/1) ... [2023-08-25 17:17:59,551 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:17:59,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:17:59,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:17:59,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:17:59,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59" (1/1) ... [2023-08-25 17:17:59,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:17:59,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:17:59,585 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 17:17:59,593 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 17:17:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:17:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:17:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:17:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:17:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:17:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:17:59,623 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:17:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:17:59,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:17:59,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:17:59,625 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 17:17:59,776 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:17:59,778 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:17:59,990 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:18:00,002 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:18:00,003 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:18:00,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:18:00 BoogieIcfgContainer [2023-08-25 17:18:00,005 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:18:00,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:18:00,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:18:00,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:18:00,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:17:58" (1/3) ... [2023-08-25 17:18:00,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa46c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:18:00, skipping insertion in model container [2023-08-25 17:18:00,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:59" (2/3) ... [2023-08-25 17:18:00,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aa46c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:18:00, skipping insertion in model container [2023-08-25 17:18:00,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:18:00" (3/3) ... [2023-08-25 17:18:00,012 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_15-fldunknown_access.i [2023-08-25 17:18:00,028 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:18:00,029 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-25 17:18:00,029 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:18:00,090 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 17:18:00,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 149 flow [2023-08-25 17:18:00,168 INFO L124 PetriNetUnfolderBase]: 1/71 cut-off events. [2023-08-25 17:18:00,168 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:18:00,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 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. 0/66 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-08-25 17:18:00,172 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 72 transitions, 149 flow [2023-08-25 17:18:00,175 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 71 transitions, 145 flow [2023-08-25 17:18:00,178 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:18:00,188 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 71 transitions, 145 flow [2023-08-25 17:18:00,191 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 71 transitions, 145 flow [2023-08-25 17:18:00,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 71 transitions, 145 flow [2023-08-25 17:18:00,208 INFO L124 PetriNetUnfolderBase]: 1/71 cut-off events. [2023-08-25 17:18:00,208 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:18:00,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 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. 0/66 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-08-25 17:18:00,210 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-08-25 17:18:01,754 INFO L134 LiptonReduction]: Checked pairs total: 5426 [2023-08-25 17:18:01,754 INFO L136 LiptonReduction]: Total number of compositions: 41 [2023-08-25 17:18:01,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:18:01,772 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;@5cdfbb29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:18:01,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-25 17:18:01,776 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:18:01,777 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-08-25 17:18:01,777 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:18:01,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:18:01,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:18:01,778 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 17:18:01,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:18:01,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1416137447, now seen corresponding path program 1 times [2023-08-25 17:18:01,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:18:01,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128067379] [2023-08-25 17:18:01,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:18:01,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:18:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:18:02,309 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 17:18:02,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:18:02,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128067379] [2023-08-25 17:18:02,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128067379] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:18:02,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:18:02,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:18:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968208515] [2023-08-25 17:18:02,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:18:02,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:18:02,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:18:02,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:18:02,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:18:02,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 113 [2023-08-25 17:18:02,344 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 17:18:02,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:18:02,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 113 [2023-08-25 17:18:02,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:18:02,631 INFO L124 PetriNetUnfolderBase]: 217/470 cut-off events. [2023-08-25 17:18:02,631 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:18:02,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 945 conditions, 470 events. 217/470 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1948 event pairs, 100 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 936. Up to 315 conditions per place. [2023-08-25 17:18:02,636 INFO L140 encePairwiseOnDemand]: 102/113 looper letters, 70 selfloop transitions, 22 changer transitions 0/92 dead transitions. [2023-08-25 17:18:02,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 92 transitions, 371 flow [2023-08-25 17:18:02,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:18:02,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:18:02,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 339 transitions. [2023-08-25 17:18:02,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-25 17:18:02,648 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 339 transitions. [2023-08-25 17:18:02,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 339 transitions. [2023-08-25 17:18:02,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:18:02,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 339 transitions. [2023-08-25 17:18:02,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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 17:18:02,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:18:02,658 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:18:02,659 INFO L175 Difference]: Start difference. First operand has 34 places, 30 transitions, 63 flow. Second operand 6 states and 339 transitions. [2023-08-25 17:18:02,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 92 transitions, 371 flow [2023-08-25 17:18:02,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 92 transitions, 370 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:18:02,663 INFO L231 Difference]: Finished difference. Result has 43 places, 51 transitions, 212 flow [2023-08-25 17:18:02,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, 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=212, PETRI_PLACES=43, PETRI_TRANSITIONS=51} [2023-08-25 17:18:02,666 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2023-08-25 17:18:02,666 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 51 transitions, 212 flow [2023-08-25 17:18:02,667 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 17:18:02,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:18:02,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:18:02,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:18:02,667 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-25 17:18:02,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:18:02,667 INFO L85 PathProgramCache]: Analyzing trace with hash 741880636, now seen corresponding path program 1 times [2023-08-25 17:18:02,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:18:02,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076218679] [2023-08-25 17:18:02,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:18:02,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:18:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:18:02,809 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 17:18:02,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:18:02,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076218679] [2023-08-25 17:18:02,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076218679] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:18:02,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:18:02,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:18:02,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937789241] [2023-08-25 17:18:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:18:02,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:18:02,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:18:02,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:18:02,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:18:02,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 113 [2023-08-25 17:18:02,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 51 transitions, 212 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 17:18:02,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:18:02,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 113 [2023-08-25 17:18:02,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:18:03,026 INFO L124 PetriNetUnfolderBase]: 221/488 cut-off events. [2023-08-25 17:18:03,026 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES. [2023-08-25 17:18:03,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1271 conditions, 488 events. 221/488 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2113 event pairs, 68 based on Foata normal form. 0/442 useless extension candidates. Maximal degree in co-relation 1258. Up to 351 conditions per place. [2023-08-25 17:18:03,032 INFO L140 encePairwiseOnDemand]: 102/113 looper letters, 78 selfloop transitions, 26 changer transitions 0/105 dead transitions. [2023-08-25 17:18:03,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 105 transitions, 618 flow [2023-08-25 17:18:03,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:18:03,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:18:03,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 324 transitions. [2023-08-25 17:18:03,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4778761061946903 [2023-08-25 17:18:03,037 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 324 transitions. [2023-08-25 17:18:03,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 324 transitions. [2023-08-25 17:18:03,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:18:03,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 324 transitions. [2023-08-25 17:18:03,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 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 17:18:03,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:18:03,045 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:18:03,045 INFO L175 Difference]: Start difference. First operand has 43 places, 51 transitions, 212 flow. Second operand 6 states and 324 transitions. [2023-08-25 17:18:03,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 105 transitions, 618 flow [2023-08-25 17:18:03,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 105 transitions, 618 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:18:03,052 INFO L231 Difference]: Finished difference. Result has 53 places, 72 transitions, 396 flow [2023-08-25 17:18:03,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=396, PETRI_PLACES=53, PETRI_TRANSITIONS=72} [2023-08-25 17:18:03,053 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 19 predicate places. [2023-08-25 17:18:03,054 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 72 transitions, 396 flow [2023-08-25 17:18:03,054 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 17:18:03,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:18:03,054 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:18:03,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:18:03,058 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 17:18:03,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:18:03,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1853542636, now seen corresponding path program 1 times [2023-08-25 17:18:03,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:18:03,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798387236] [2023-08-25 17:18:03,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:18:03,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:18:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:18:03,360 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 17:18:03,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:18:03,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798387236] [2023-08-25 17:18:03,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798387236] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:18:03,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:18:03,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:18:03,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166619858] [2023-08-25 17:18:03,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:18:03,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:18:03,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:18:03,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:18:03,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:18:03,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 113 [2023-08-25 17:18:03,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 72 transitions, 396 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 17:18:03,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:18:03,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 113 [2023-08-25 17:18:03,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:18:03,603 INFO L124 PetriNetUnfolderBase]: 290/626 cut-off events. [2023-08-25 17:18:03,603 INFO L125 PetriNetUnfolderBase]: For 481/481 co-relation queries the response was YES. [2023-08-25 17:18:03,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1965 conditions, 626 events. 290/626 cut-off events. For 481/481 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2850 event pairs, 95 based on Foata normal form. 0/582 useless extension candidates. Maximal degree in co-relation 1947. Up to 528 conditions per place. [2023-08-25 17:18:03,608 INFO L140 encePairwiseOnDemand]: 99/113 looper letters, 86 selfloop transitions, 49 changer transitions 4/139 dead transitions. [2023-08-25 17:18:03,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 139 transitions, 954 flow [2023-08-25 17:18:03,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:18:03,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:18:03,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 325 transitions. [2023-08-25 17:18:03,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47935103244837757 [2023-08-25 17:18:03,609 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 325 transitions. [2023-08-25 17:18:03,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 325 transitions. [2023-08-25 17:18:03,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:18:03,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 325 transitions. [2023-08-25 17:18:03,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 54.166666666666664) internal successors, (325), 6 states have internal predecessors, (325), 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 17:18:03,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:18:03,612 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:18:03,612 INFO L175 Difference]: Start difference. First operand has 53 places, 72 transitions, 396 flow. Second operand 6 states and 325 transitions. [2023-08-25 17:18:03,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 139 transitions, 954 flow [2023-08-25 17:18:03,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 139 transitions, 954 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:18:03,619 INFO L231 Difference]: Finished difference. Result has 62 places, 115 transitions, 791 flow [2023-08-25 17:18:03,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=791, PETRI_PLACES=62, PETRI_TRANSITIONS=115} [2023-08-25 17:18:03,620 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 28 predicate places. [2023-08-25 17:18:03,620 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 115 transitions, 791 flow [2023-08-25 17:18:03,620 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 17:18:03,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:18:03,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:18:03,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:18:03,621 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 17:18:03,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:18:03,621 INFO L85 PathProgramCache]: Analyzing trace with hash -397352157, now seen corresponding path program 1 times [2023-08-25 17:18:03,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:18:03,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233089387] [2023-08-25 17:18:03,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:18:03,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:18:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:18:03,850 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 17:18:03,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:18:03,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233089387] [2023-08-25 17:18:03,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233089387] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:18:03,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:18:03,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:18:03,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22216061] [2023-08-25 17:18:03,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:18:03,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:18:03,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:18:03,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:18:03,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:18:03,855 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 113 [2023-08-25 17:18:03,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 115 transitions, 791 flow. Second operand has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 6 states have internal predecessors, (242), 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 17:18:03,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:18:03,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 113 [2023-08-25 17:18:03,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:18:04,055 INFO L124 PetriNetUnfolderBase]: 315/693 cut-off events. [2023-08-25 17:18:04,055 INFO L125 PetriNetUnfolderBase]: For 1012/1014 co-relation queries the response was YES. [2023-08-25 17:18:04,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2603 conditions, 693 events. 315/693 cut-off events. For 1012/1014 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3355 event pairs, 78 based on Foata normal form. 0/648 useless extension candidates. Maximal degree in co-relation 2580. Up to 588 conditions per place. [2023-08-25 17:18:04,061 INFO L140 encePairwiseOnDemand]: 99/113 looper letters, 116 selfloop transitions, 57 changer transitions 4/178 dead transitions. [2023-08-25 17:18:04,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 178 transitions, 1479 flow [2023-08-25 17:18:04,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:18:04,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:18:04,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 314 transitions. [2023-08-25 17:18:04,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4631268436578171 [2023-08-25 17:18:04,063 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 314 transitions. [2023-08-25 17:18:04,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 314 transitions. [2023-08-25 17:18:04,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:18:04,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 314 transitions. [2023-08-25 17:18:04,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 52.333333333333336) internal successors, (314), 6 states have internal predecessors, (314), 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 17:18:04,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:18:04,066 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 113.0) internal successors, (791), 7 states have internal predecessors, (791), 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 17:18:04,066 INFO L175 Difference]: Start difference. First operand has 62 places, 115 transitions, 791 flow. Second operand 6 states and 314 transitions. [2023-08-25 17:18:04,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 178 transitions, 1479 flow [2023-08-25 17:18:04,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 178 transitions, 1415 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-08-25 17:18:04,078 INFO L231 Difference]: Finished difference. Result has 71 places, 158 transitions, 1192 flow [2023-08-25 17:18:04,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1192, PETRI_PLACES=71, PETRI_TRANSITIONS=158} [2023-08-25 17:18:04,080 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 37 predicate places. [2023-08-25 17:18:04,080 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 158 transitions, 1192 flow [2023-08-25 17:18:04,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 6 states have internal predecessors, (242), 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 17:18:04,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:18:04,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:18:04,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:18:04,081 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 17:18:04,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:18:04,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1472061973, now seen corresponding path program 1 times [2023-08-25 17:18:04,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:18:04,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803076252] [2023-08-25 17:18:04,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:18:04,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:18:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:18:04,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 17:18:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 17:18:04,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 17:18:04,146 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 17:18:04,147 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-25 17:18:04,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-25 17:18:04,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-25 17:18:04,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-25 17:18:04,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-25 17:18:04,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-25 17:18:04,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-25 17:18:04,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:18:04,150 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-25 17:18:04,155 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:18:04,156 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:18:04,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:18:04 BasicIcfg [2023-08-25 17:18:04,182 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:18:04,182 INFO L158 Benchmark]: Toolchain (without parser) took 5243.97ms. Allocated memory was 369.1MB in the beginning and 444.6MB in the end (delta: 75.5MB). Free memory was 343.8MB in the beginning and 262.3MB in the end (delta: 81.5MB). Peak memory consumption was 159.0MB. Max. memory is 16.0GB. [2023-08-25 17:18:04,183 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 369.1MB. Free memory is still 345.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:18:04,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.55ms. Allocated memory is still 369.1MB. Free memory was 343.8MB in the beginning and 316.6MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-25 17:18:04,183 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.53ms. Allocated memory is still 369.1MB. Free memory was 316.6MB in the beginning and 314.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:18:04,184 INFO L158 Benchmark]: Boogie Preprocessor took 46.84ms. Allocated memory is still 369.1MB. Free memory was 314.5MB in the beginning and 312.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:18:04,184 INFO L158 Benchmark]: RCFGBuilder took 453.25ms. Allocated memory is still 369.1MB. Free memory was 312.9MB in the beginning and 298.9MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 17:18:04,184 INFO L158 Benchmark]: TraceAbstraction took 4174.99ms. Allocated memory was 369.1MB in the beginning and 444.6MB in the end (delta: 75.5MB). Free memory was 298.2MB in the beginning and 262.3MB in the end (delta: 35.9MB). Peak memory consumption was 112.9MB. Max. memory is 16.0GB. [2023-08-25 17:18:04,186 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 369.1MB. Free memory is still 345.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 501.55ms. Allocated memory is still 369.1MB. Free memory was 343.8MB in the beginning and 316.6MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.53ms. Allocated memory is still 369.1MB. Free memory was 316.6MB in the beginning and 314.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 46.84ms. Allocated memory is still 369.1MB. Free memory was 314.5MB in the beginning and 312.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 453.25ms. Allocated memory is still 369.1MB. Free memory was 312.9MB in the beginning and 298.9MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 4174.99ms. Allocated memory was 369.1MB in the beginning and 444.6MB in the end (delta: 75.5MB). Free memory was 298.2MB in the beginning and 262.3MB in the end (delta: 35.9MB). Peak memory consumption was 112.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 121]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [121] - GenericResultAtLocation [Line: 483]: Unsoundness Warning unspecified type, defaulting to int C: short [483] - GenericResultAtLocation [Line: 483]: Unsoundness Warning unspecified type, defaulting to int C: short [483] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 74 PlacesBefore, 34 PlacesAfterwards, 71 TransitionsBefore, 30 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 5426 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1104, independent: 799, independent conditional: 0, independent unconditional: 799, dependent: 305, dependent conditional: 0, dependent unconditional: 305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 461, independent: 410, independent conditional: 0, independent unconditional: 410, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1104, independent: 389, independent conditional: 0, independent unconditional: 389, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 461, unknown conditional: 0, unknown unconditional: 461] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 25, Positive conditional cache size: 0, Positive unconditional cache size: 25, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 923]: Data race detected Data race detected The following path leads to a data race: [L918-L921] 0 struct { int x; int y; } data; [L927] 0 int *i,j = __VERIFIER_nondet_int(); [L927] 0 int *i,j = __VERIFIER_nondet_int(); [L928] 0 pthread_t id; [L929] COND TRUE 0 \read(j) [L929] 0 i = &data.x [L931] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i={1:0}, id={5:0}, j=1, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L932] EXPR 0 \read(*i) VAL [\read(*i)=0, arg={0:0}, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] EXPR 1 data.x VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [\read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] [L932] 0 (*i)++ VAL [(*i)++=0, (*i)++=9, \read(*i)=0, arg={0:0}, arg={0:0}, data.x=0, data={1:0}, i={1:0}, id={5:0}, j=1] [L923] 1 data.x++ VAL [arg={0:0}, arg={0:0}, data.x=0, data={1:0}] Now there is a data race (on the heap) between C: (*i)++ [932] and C: data.x++ [923] - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 931]: 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: 923]: 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, 96 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: 4.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 90 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 766 IncrementalHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 62 mSDtfsCounter, 766 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=1192occurred 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, 1.0s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 364 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 17:18:04,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...