/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/04-mutex_20-stdfun_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 03:15:39,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 03:15:39,495 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 03:15:39,500 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 03:15:39,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 03:15:39,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 03:15:39,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 03:15:39,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 03:15:39,532 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 03:15:39,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 03:15:39,536 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 03:15:39,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 03:15:39,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 03:15:39,537 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 03:15:39,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 03:15:39,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 03:15:39,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 03:15:39,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 03:15:39,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 03:15:39,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 03:15:39,539 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 03:15:39,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 03:15:39,541 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 03:15:39,542 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 03:15:39,542 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 03:15:39,542 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 03:15:39,542 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 03:15:39,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:15:39,543 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 03:15:39,543 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 03:15:39,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 03:15:39,544 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 03:15:39,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 03:15:39,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 03:15:39,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 03:15:39,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 03:15:39,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 03:15:39,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 03:15:39,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 03:15:39,859 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 03:15:39,859 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 03:15:39,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_20-stdfun_rc.i [2023-08-25 03:15:40,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 03:15:41,167 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 03:15:41,168 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_20-stdfun_rc.i [2023-08-25 03:15:41,181 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09cdf3e55/57bf1302a7104f1fad7bd5570348920e/FLAG5a60a3337 [2023-08-25 03:15:41,201 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09cdf3e55/57bf1302a7104f1fad7bd5570348920e [2023-08-25 03:15:41,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 03:15:41,204 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 03:15:41,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 03:15:41,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 03:15:41,207 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 03:15:41,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb61d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41, skipping insertion in model container [2023-08-25 03:15:41,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,256 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 03:15:41,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:15:41,665 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 03:15:41,696 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:15:41,698 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-25 03:15:41,704 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [736] [2023-08-25 03:15:41,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 03:15:41,768 INFO L206 MainTranslator]: Completed translation [2023-08-25 03:15:41,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41 WrapperNode [2023-08-25 03:15:41,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 03:15:41,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 03:15:41,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 03:15:41,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 03:15:41,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,806 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,829 INFO L138 Inliner]: procedures = 261, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2023-08-25 03:15:41,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 03:15:41,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 03:15:41,830 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 03:15:41,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 03:15:41,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,847 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,858 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 03:15:41,864 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 03:15:41,864 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 03:15:41,870 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 03:15:41,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41" (1/1) ... [2023-08-25 03:15:41,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 03:15:41,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 03:15:41,898 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 03:15:41,913 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 03:15:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 03:15:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 03:15:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 03:15:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 03:15:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 03:15:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 03:15:41,937 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 03:15:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 03:15:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 03:15:41,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 03:15:41,938 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 03:15:42,041 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 03:15:42,043 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 03:15:42,198 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 03:15:42,203 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 03:15:42,203 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 03:15:42,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:15:42 BoogieIcfgContainer [2023-08-25 03:15:42,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 03:15:42,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 03:15:42,207 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 03:15:42,209 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 03:15:42,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 03:15:41" (1/3) ... [2023-08-25 03:15:42,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0487e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:15:42, skipping insertion in model container [2023-08-25 03:15:42,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 03:15:41" (2/3) ... [2023-08-25 03:15:42,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0487e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 03:15:42, skipping insertion in model container [2023-08-25 03:15:42,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 03:15:42" (3/3) ... [2023-08-25 03:15:42,211 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_20-stdfun_rc.i [2023-08-25 03:15:42,225 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 03:15:42,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-08-25 03:15:42,225 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 03:15:42,265 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 03:15:42,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 54 transitions, 113 flow [2023-08-25 03:15:42,334 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2023-08-25 03:15:42,335 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:15:42,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 0/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:15:42,338 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 54 transitions, 113 flow [2023-08-25 03:15:42,341 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 53 transitions, 109 flow [2023-08-25 03:15:42,345 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 03:15:42,357 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 53 transitions, 109 flow [2023-08-25 03:15:42,363 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 53 transitions, 109 flow [2023-08-25 03:15:42,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 53 transitions, 109 flow [2023-08-25 03:15:42,386 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2023-08-25 03:15:42,386 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:15:42,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 0/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 03:15:42,388 INFO L119 LiptonReduction]: Number of co-enabled transitions 800 [2023-08-25 03:15:43,430 INFO L134 LiptonReduction]: Checked pairs total: 2645 [2023-08-25 03:15:43,430 INFO L136 LiptonReduction]: Total number of compositions: 30 [2023-08-25 03:15:43,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 03:15:43,447 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;@54c0eb26, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 03:15:43,447 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-08-25 03:15:43,451 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 03:15:43,451 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-08-25 03:15:43,451 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:15:43,451 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:15:43,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:15:43,452 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-25 03:15:43,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:15:43,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1598554099, now seen corresponding path program 1 times [2023-08-25 03:15:43,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:15:43,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368740138] [2023-08-25 03:15:43,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:15:43,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:15:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:15:44,005 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 03:15:44,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:15:44,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368740138] [2023-08-25 03:15:44,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368740138] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:15:44,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:15:44,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:15:44,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679504873] [2023-08-25 03:15:44,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:15:44,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:15:44,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:15:44,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:15:44,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:15:44,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 84 [2023-08-25 03:15:44,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 49 flow. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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 03:15:44,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:15:44,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 84 [2023-08-25 03:15:44,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:15:44,363 INFO L124 PetriNetUnfolderBase]: 207/448 cut-off events. [2023-08-25 03:15:44,364 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 03:15:44,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 448 events. 207/448 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1989 event pairs, 51 based on Foata normal form. 0/375 useless extension candidates. Maximal degree in co-relation 892. Up to 230 conditions per place. [2023-08-25 03:15:44,371 INFO L140 encePairwiseOnDemand]: 68/84 looper letters, 60 selfloop transitions, 34 changer transitions 1/95 dead transitions. [2023-08-25 03:15:44,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 95 transitions, 383 flow [2023-08-25 03:15:44,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:15:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:15:44,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 258 transitions. [2023-08-25 03:15:44,388 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5119047619047619 [2023-08-25 03:15:44,389 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 258 transitions. [2023-08-25 03:15:44,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 258 transitions. [2023-08-25 03:15:44,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:15:44,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 258 transitions. [2023-08-25 03:15:44,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 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 03:15:44,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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 03:15:44,402 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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 03:15:44,404 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 49 flow. Second operand 6 states and 258 transitions. [2023-08-25 03:15:44,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 95 transitions, 383 flow [2023-08-25 03:15:44,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 95 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 03:15:44,408 INFO L231 Difference]: Finished difference. Result has 35 places, 59 transitions, 283 flow [2023-08-25 03:15:44,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=35, PETRI_TRANSITIONS=59} [2023-08-25 03:15:44,413 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2023-08-25 03:15:44,413 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 59 transitions, 283 flow [2023-08-25 03:15:44,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 states have internal predecessors, (170), 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 03:15:44,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:15:44,413 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:15:44,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 03:15:44,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-25 03:15:44,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:15:44,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1286986729, now seen corresponding path program 1 times [2023-08-25 03:15:44,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:15:44,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582996164] [2023-08-25 03:15:44,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:15:44,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:15:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 03:15:44,694 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 03:15:44,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 03:15:44,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582996164] [2023-08-25 03:15:44,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582996164] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 03:15:44,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 03:15:44,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 03:15:44,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629199356] [2023-08-25 03:15:44,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 03:15:44,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 03:15:44,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 03:15:44,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 03:15:44,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 03:15:44,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 84 [2023-08-25 03:15:44,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 59 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 03:15:44,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 03:15:44,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 84 [2023-08-25 03:15:44,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 03:15:44,893 INFO L124 PetriNetUnfolderBase]: 259/564 cut-off events. [2023-08-25 03:15:44,893 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2023-08-25 03:15:44,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1776 conditions, 564 events. 259/564 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2743 event pairs, 54 based on Foata normal form. 8/572 useless extension candidates. Maximal degree in co-relation 1763. Up to 349 conditions per place. [2023-08-25 03:15:44,899 INFO L140 encePairwiseOnDemand]: 72/84 looper letters, 79 selfloop transitions, 40 changer transitions 0/119 dead transitions. [2023-08-25 03:15:44,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 119 transitions, 757 flow [2023-08-25 03:15:44,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 03:15:44,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 03:15:44,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 256 transitions. [2023-08-25 03:15:44,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2023-08-25 03:15:44,901 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 256 transitions. [2023-08-25 03:15:44,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 256 transitions. [2023-08-25 03:15:44,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 03:15:44,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 256 transitions. [2023-08-25 03:15:44,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 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 03:15:44,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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 03:15:44,906 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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 03:15:44,906 INFO L175 Difference]: Start difference. First operand has 35 places, 59 transitions, 283 flow. Second operand 6 states and 256 transitions. [2023-08-25 03:15:44,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 119 transitions, 757 flow [2023-08-25 03:15:44,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 119 transitions, 757 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 03:15:44,917 INFO L231 Difference]: Finished difference. Result has 44 places, 93 transitions, 605 flow [2023-08-25 03:15:44,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=605, PETRI_PLACES=44, PETRI_TRANSITIONS=93} [2023-08-25 03:15:44,918 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places. [2023-08-25 03:15:44,918 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 93 transitions, 605 flow [2023-08-25 03:15:44,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 03:15:44,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 03:15:44,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 03:15:44,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 03:15:44,920 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2023-08-25 03:15:44,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 03:15:44,923 INFO L85 PathProgramCache]: Analyzing trace with hash 66991480, now seen corresponding path program 1 times [2023-08-25 03:15:44,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 03:15:44,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500929635] [2023-08-25 03:15:44,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 03:15:44,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 03:15:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:15:44,948 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 03:15:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 03:15:44,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 03:15:44,977 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 03:15:44,978 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2023-08-25 03:15:44,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2023-08-25 03:15:44,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-08-25 03:15:44,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2023-08-25 03:15:44,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2023-08-25 03:15:44,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2023-08-25 03:15:44,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 03:15:44,981 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-25 03:15:44,985 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 03:15:44,986 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 03:15:45,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 03:15:45 BasicIcfg [2023-08-25 03:15:45,004 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 03:15:45,004 INFO L158 Benchmark]: Toolchain (without parser) took 3800.21ms. Allocated memory is still 381.7MB. Free memory was 337.4MB in the beginning and 265.6MB in the end (delta: 71.8MB). Peak memory consumption was 73.9MB. Max. memory is 16.0GB. [2023-08-25 03:15:45,004 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 381.7MB. Free memory is still 359.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 03:15:45,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 564.53ms. Allocated memory is still 381.7MB. Free memory was 337.4MB in the beginning and 311.2MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-25 03:15:45,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.52ms. Allocated memory is still 381.7MB. Free memory was 311.2MB in the beginning and 309.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:15:45,006 INFO L158 Benchmark]: Boogie Preprocessor took 33.30ms. Allocated memory is still 381.7MB. Free memory was 309.1MB in the beginning and 307.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 03:15:45,006 INFO L158 Benchmark]: RCFGBuilder took 340.72ms. Allocated memory is still 381.7MB. Free memory was 307.0MB in the beginning and 293.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 03:15:45,006 INFO L158 Benchmark]: TraceAbstraction took 2797.11ms. Allocated memory is still 381.7MB. Free memory was 292.3MB in the beginning and 265.6MB in the end (delta: 26.7MB). Peak memory consumption was 29.8MB. Max. memory is 16.0GB. [2023-08-25 03:15:45,008 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 381.7MB. Free memory is still 359.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 564.53ms. Allocated memory is still 381.7MB. Free memory was 337.4MB in the beginning and 311.2MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 59.52ms. Allocated memory is still 381.7MB. Free memory was 311.2MB in the beginning and 309.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 33.30ms. Allocated memory is still 381.7MB. Free memory was 309.1MB in the beginning and 307.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 340.72ms. Allocated memory is still 381.7MB. Free memory was 307.0MB in the beginning and 293.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2797.11ms. Allocated memory is still 381.7MB. Free memory was 292.3MB in the beginning and 265.6MB in the end (delta: 26.7MB). Peak memory consumption was 29.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 244]: Unsoundness Warning unspecified type, defaulting to int C: short [244] - GenericResultAtLocation [Line: 736]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [736] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 57 PlacesBefore, 27 PlacesAfterwards, 53 TransitionsBefore, 23 TransitionsAfterwards, 800 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 30 TotalNumberOfCompositions, 2645 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 651, independent: 469, independent conditional: 0, independent unconditional: 469, dependent: 182, dependent conditional: 0, dependent unconditional: 182, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 352, independent: 321, independent conditional: 0, independent unconditional: 321, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 651, independent: 148, independent conditional: 0, independent unconditional: 148, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 352, unknown conditional: 0, unknown unconditional: 352] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L923] 0 pthread_t id; [L924] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, myglobal={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L919] EXPR 1 \read(myglobal) VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] [L919] 1 myglobal+1 VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] [L919] 1 myglobal+1 VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] Now there is a data race (on the heap) between C: scanf("%d", &myglobal) [925] and C: myglobal+1 [919] - UnprovableResult [Line: 925]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: 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: 919]: 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, 77 locations, 6 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: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 325 IncrementalHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 21 mSDtfsCounter, 325 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=605occurred in iteration=2, InterpolantAutomatonStates: 12, 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, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 03:15:45,041 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...