/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.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 23:01:57,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 23:01:57,952 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 [2023-08-26 23:01:57,957 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 23:01:57,957 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 23:01:57,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 23:01:57,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 23:01:57,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 23:01:57,996 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 23:01:57,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 23:01:57,996 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 23:01:57,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 23:01:57,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 23:01:57,997 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 23:01:57,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 23:01:57,998 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 23:01:57,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 23:01:57,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 23:01:57,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 23:01:57,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 23:01:58,000 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 23:01:58,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 23:01:58,004 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 23:01:58,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 23:01:58,007 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 23:01:58,007 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 23:01:58,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 23:01:58,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:01:58,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 23:01:58,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 23:01:58,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 23:01:58,009 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 23:01:58,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 23:01:58,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 23:01:58,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 23:01:58,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 23:01:58,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 23:01:58,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 23:01:58,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 23:01:58,347 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 23:01:58,348 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 23:01:58,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-08-26 23:01:59,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 23:01:59,790 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 23:01:59,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-08-26 23:01:59,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2f37f620/68bbd2494caf41018914850a22e2ec4c/FLAG4ccf4caab [2023-08-26 23:01:59,814 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2f37f620/68bbd2494caf41018914850a22e2ec4c [2023-08-26 23:01:59,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 23:01:59,817 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 23:01:59,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 23:01:59,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 23:01:59,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 23:01:59,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:01:59" (1/1) ... [2023-08-26 23:01:59,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc4eebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:59, skipping insertion in model container [2023-08-26 23:01:59,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:01:59" (1/1) ... [2023-08-26 23:01:59,860 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 23:02:00,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:02:00,182 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 23:02:00,210 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-26 23:02:00,211 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-26 23:02:00,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:02:00,273 INFO L206 MainTranslator]: Completed translation [2023-08-26 23:02:00,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00 WrapperNode [2023-08-26 23:02:00,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 23:02:00,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 23:02:00,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 23:02:00,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 23:02:00,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00" (1/1) ... [2023-08-26 23:02:00,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00" (1/1) ... [2023-08-26 23:02:00,324 INFO L138 Inliner]: procedures = 162, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 39 [2023-08-26 23:02:00,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 23:02:00,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 23:02:00,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 23:02:00,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 23:02:00,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00" (1/1) ... [2023-08-26 23:02:00,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00" (1/1) ... [2023-08-26 23:02:00,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00" (1/1) ... [2023-08-26 23:02:00,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00" (1/1) ... [2023-08-26 23:02:00,351 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00" (1/1) ... [2023-08-26 23:02:00,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00" (1/1) ... [2023-08-26 23:02:00,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00" (1/1) ... [2023-08-26 23:02:00,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00" (1/1) ... [2023-08-26 23:02:00,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 23:02:00,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 23:02:00,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 23:02:00,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 23:02:00,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00" (1/1) ... [2023-08-26 23:02:00,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:02:00,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:02:00,394 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) [2023-08-26 23:02:00,408 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 [2023-08-26 23:02:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 23:02:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 23:02:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 23:02:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 23:02:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 23:02:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 23:02:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 23:02:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 23:02:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 23:02:00,437 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 23:02:00,563 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 23:02:00,565 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 23:02:00,683 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 23:02:00,688 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 23:02:00,689 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 23:02:00,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:02:00 BoogieIcfgContainer [2023-08-26 23:02:00,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 23:02:00,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 23:02:00,692 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 23:02:00,695 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 23:02:00,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 11:01:59" (1/3) ... [2023-08-26 23:02:00,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d3009f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:02:00, skipping insertion in model container [2023-08-26 23:02:00,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:02:00" (2/3) ... [2023-08-26 23:02:00,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d3009f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:02:00, skipping insertion in model container [2023-08-26 23:02:00,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:02:00" (3/3) ... [2023-08-26 23:02:00,700 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-08-26 23:02:00,716 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 23:02:00,716 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-26 23:02:00,716 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 23:02:00,777 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 23:02:00,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 89 flow [2023-08-26 23:02:00,861 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2023-08-26 23:02:00,861 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:02:00,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2023-08-26 23:02:00,865 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 89 flow [2023-08-26 23:02:00,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 34 transitions, 71 flow [2023-08-26 23:02:00,873 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 23:02:00,885 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 34 transitions, 71 flow [2023-08-26 23:02:00,891 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 34 transitions, 71 flow [2023-08-26 23:02:00,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 71 flow [2023-08-26 23:02:00,912 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2023-08-26 23:02:00,913 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:02:00,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 34 events. 0/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 23:02:00,914 INFO L119 LiptonReduction]: Number of co-enabled transitions 168 [2023-08-26 23:02:01,938 INFO L134 LiptonReduction]: Checked pairs total: 106 [2023-08-26 23:02:01,938 INFO L136 LiptonReduction]: Total number of compositions: 30 [2023-08-26 23:02:01,955 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 23:02:01,962 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;@58731f38, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 23:02:01,962 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-26 23:02:01,966 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 23:02:01,966 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-26 23:02:01,966 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:02:01,967 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:02:01,967 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 23:02:01,968 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONASSERT, t_funErr0ASSERT_VIOLATIONASSERT] === [2023-08-26 23:02:01,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:02:01,972 INFO L85 PathProgramCache]: Analyzing trace with hash 170857, now seen corresponding path program 1 times [2023-08-26 23:02:01,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:02:01,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20648369] [2023-08-26 23:02:01,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:02:01,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:02:02,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 23:02:02,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 23:02:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 23:02:02,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 23:02:02,108 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 23:02:02,109 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-08-26 23:02:02,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-26 23:02:02,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONASSERT (0 of 3 remaining) [2023-08-26 23:02:02,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 23:02:02,112 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 23:02:02,118 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 23:02:02,118 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 23:02:02,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 11:02:02 BasicIcfg [2023-08-26 23:02:02,131 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 23:02:02,132 INFO L158 Benchmark]: Toolchain (without parser) took 2314.65ms. Allocated memory is still 352.3MB. Free memory was 326.7MB in the beginning and 259.0MB in the end (delta: 67.7MB). Peak memory consumption was 68.1MB. Max. memory is 16.0GB. [2023-08-26 23:02:02,133 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 352.3MB. Free memory is still 328.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:02:02,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.93ms. Allocated memory is still 352.3MB. Free memory was 326.7MB in the beginning and 308.2MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-26 23:02:02,134 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.69ms. Allocated memory is still 352.3MB. Free memory was 308.2MB in the beginning and 306.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:02:02,134 INFO L158 Benchmark]: Boogie Preprocessor took 30.18ms. Allocated memory is still 352.3MB. Free memory was 306.4MB in the beginning and 305.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:02:02,134 INFO L158 Benchmark]: RCFGBuilder took 334.09ms. Allocated memory is still 352.3MB. Free memory was 305.2MB in the beginning and 293.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-26 23:02:02,135 INFO L158 Benchmark]: TraceAbstraction took 1439.13ms. Allocated memory is still 352.3MB. Free memory was 293.1MB in the beginning and 259.0MB in the end (delta: 34.1MB). Peak memory consumption was 34.6MB. Max. memory is 16.0GB. [2023-08-26 23:02:02,137 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 352.3MB. Free memory is still 328.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 456.93ms. Allocated memory is still 352.3MB. Free memory was 326.7MB in the beginning and 308.2MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 48.69ms. Allocated memory is still 352.3MB. Free memory was 308.2MB in the beginning and 306.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 30.18ms. Allocated memory is still 352.3MB. Free memory was 306.4MB in the beginning and 305.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 334.09ms. Allocated memory is still 352.3MB. Free memory was 305.2MB in the beginning and 293.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 1439.13ms. Allocated memory is still 352.3MB. Free memory was 293.1MB in the beginning and 259.0MB in the end (delta: 34.1MB). Peak memory consumption was 34.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 38 PlacesBefore, 8 PlacesAfterwards, 34 TransitionsBefore, 4 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 30 TotalNumberOfCompositions, 106 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 106, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 83, independent: 83, independent conditional: 0, independent unconditional: 83, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 106, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 83, unknown conditional: 0, unknown unconditional: 83] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: assertion can be violated assertion can be violated We found a FailurePath: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(!(x == 3)) [L19] COND TRUE 1 !(cond) [L19] CALL 1 reach_error() [L18] COND FALSE 1 !(0) [L18] 1 __assert_fail ("0", "36-apron_41-threadenter-no-locals_unknown_1_neg.c", 3, __extension__ __PRETTY_FUNCTION__) - UnprovableResult [Line: 690]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 60 locations, 3 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: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2023-08-26 23:02:02,156 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...