/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/36-apron_41-threadenter-no-locals_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 18:44:28,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 18:44:28,136 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 18:44:28,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 18:44:28,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 18:44:28,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 18:44:28,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 18:44:28,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 18:44:28,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 18:44:28,164 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 18:44:28,164 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 18:44:28,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 18:44:28,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 18:44:28,165 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 18:44:28,165 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 18:44:28,165 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 18:44:28,166 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 18:44:28,166 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 18:44:28,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 18:44:28,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 18:44:28,166 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 18:44:28,166 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 18:44:28,167 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 18:44:28,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 18:44:28,167 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 18:44:28,167 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 18:44:28,167 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 18:44:28,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 18:44:28,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 18:44:28,168 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 18:44:28,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 18:44:28,169 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 18:44:28,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 18:44:28,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 18:44:28,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 18:44:28,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 18:44:28,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 18:44:28,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 18:44:28,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 18:44:28,444 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 18:44:28,444 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 18:44:28,445 INFO L431 ainManager$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 [2023-08-25 18:44:29,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 18:44:29,706 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 18:44:29,706 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-08-25 18:44:29,716 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d3e77c84/2a8640eebb794a4992b273a7629074df/FLAG813ea5b95 [2023-08-25 18:44:29,726 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d3e77c84/2a8640eebb794a4992b273a7629074df [2023-08-25 18:44:29,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 18:44:29,729 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 18:44:29,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 18:44:29,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 18:44:29,731 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 18:44:29,732 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:44:29" (1/1) ... [2023-08-25 18:44:29,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6ca2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:29, skipping insertion in model container [2023-08-25 18:44:29,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:44:29" (1/1) ... [2023-08-25 18:44:29,762 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 18:44:29,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 18:44:29,991 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 18:44:30,018 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 18:44:30,019 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-25 18:44:30,037 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 18:44:30,065 INFO L206 MainTranslator]: Completed translation [2023-08-25 18:44:30,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30 WrapperNode [2023-08-25 18:44:30,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 18:44:30,066 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 18:44:30,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 18:44:30,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 18:44:30,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30" (1/1) ... [2023-08-25 18:44:30,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30" (1/1) ... [2023-08-25 18:44:30,108 INFO L138 Inliner]: procedures = 162, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 39 [2023-08-25 18:44:30,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 18:44:30,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 18:44:30,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 18:44:30,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 18:44:30,115 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30" (1/1) ... [2023-08-25 18:44:30,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30" (1/1) ... [2023-08-25 18:44:30,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30" (1/1) ... [2023-08-25 18:44:30,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30" (1/1) ... [2023-08-25 18:44:30,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30" (1/1) ... [2023-08-25 18:44:30,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30" (1/1) ... [2023-08-25 18:44:30,132 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30" (1/1) ... [2023-08-25 18:44:30,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30" (1/1) ... [2023-08-25 18:44:30,133 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 18:44:30,134 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 18:44:30,134 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 18:44:30,134 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 18:44:30,135 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30" (1/1) ... [2023-08-25 18:44:30,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 18:44:30,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 18:44:30,159 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 18:44:30,175 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 18:44:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 18:44:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 18:44:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 18:44:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 18:44:30,189 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 18:44:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 18:44:30,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 18:44:30,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 18:44:30,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 18:44:30,191 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 18:44:30,303 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 18:44:30,304 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 18:44:30,395 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 18:44:30,399 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 18:44:30,399 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 18:44:30,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:44:30 BoogieIcfgContainer [2023-08-25 18:44:30,400 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 18:44:30,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 18:44:30,404 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 18:44:30,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 18:44:30,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 06:44:29" (1/3) ... [2023-08-25 18:44:30,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2ca693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:44:30, skipping insertion in model container [2023-08-25 18:44:30,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:44:30" (2/3) ... [2023-08-25 18:44:30,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2ca693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:44:30, skipping insertion in model container [2023-08-25 18:44:30,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:44:30" (3/3) ... [2023-08-25 18:44:30,408 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-08-25 18:44:30,419 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 18:44:30,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-25 18:44:30,420 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 18:44:30,460 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 18:44:30,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 89 flow [2023-08-25 18:44:30,516 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2023-08-25 18:44:30,517 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:44:30,519 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. [2023-08-25 18:44:30,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 89 flow [2023-08-25 18:44:30,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 34 transitions, 71 flow [2023-08-25 18:44:30,528 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 18:44:30,537 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 34 transitions, 71 flow [2023-08-25 18:44:30,540 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 34 transitions, 71 flow [2023-08-25 18:44:30,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 71 flow [2023-08-25 18:44:30,555 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2023-08-25 18:44:30,556 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:44:30,556 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. [2023-08-25 18:44:30,556 INFO L119 LiptonReduction]: Number of co-enabled transitions 168 [2023-08-25 18:44:31,333 INFO L134 LiptonReduction]: Checked pairs total: 106 [2023-08-25 18:44:31,333 INFO L136 LiptonReduction]: Total number of compositions: 30 [2023-08-25 18:44:31,341 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 18:44:31,345 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;@3d37fe41, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 18:44:31,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-25 18:44:31,347 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 18:44:31,347 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-25 18:44:31,347 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:44:31,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:44:31,347 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 18:44:31,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONASSERT, t_funErr0ASSERT_VIOLATIONASSERT] === [2023-08-25 18:44:31,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:44:31,350 INFO L85 PathProgramCache]: Analyzing trace with hash 170857, now seen corresponding path program 1 times [2023-08-25 18:44:31,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:44:31,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152566458] [2023-08-25 18:44:31,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:44:31,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:44:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 18:44:31,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 18:44:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 18:44:31,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 18:44:31,435 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 18:44:31,435 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-08-25 18:44:31,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-25 18:44:31,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONASSERT (0 of 3 remaining) [2023-08-25 18:44:31,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 18:44:31,437 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 18:44:31,441 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 18:44:31,441 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 18:44:31,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 06:44:31 BasicIcfg [2023-08-25 18:44:31,455 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 18:44:31,455 INFO L158 Benchmark]: Toolchain (without parser) took 1726.92ms. Allocated memory is still 354.4MB. Free memory was 329.5MB in the beginning and 268.1MB in the end (delta: 61.4MB). Peak memory consumption was 61.9MB. Max. memory is 16.0GB. [2023-08-25 18:44:31,456 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 354.4MB. Free memory is still 330.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 18:44:31,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 336.39ms. Allocated memory is still 354.4MB. Free memory was 329.5MB in the beginning and 311.3MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 18:44:31,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.41ms. Allocated memory is still 354.4MB. Free memory was 311.2MB in the beginning and 309.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 18:44:31,457 INFO L158 Benchmark]: Boogie Preprocessor took 23.83ms. Allocated memory is still 354.4MB. Free memory was 309.1MB in the beginning and 308.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 18:44:31,457 INFO L158 Benchmark]: RCFGBuilder took 266.32ms. Allocated memory is still 354.4MB. Free memory was 308.0MB in the beginning and 297.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 18:44:31,457 INFO L158 Benchmark]: TraceAbstraction took 1052.12ms. Allocated memory is still 354.4MB. Free memory was 296.6MB in the beginning and 268.1MB in the end (delta: 28.4MB). Peak memory consumption was 30.5MB. Max. memory is 16.0GB. [2023-08-25 18:44:31,459 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 354.4MB. Free memory is still 330.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 336.39ms. Allocated memory is still 354.4MB. Free memory was 329.5MB in the beginning and 311.3MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 42.41ms. Allocated memory is still 354.4MB. Free memory was 311.2MB in the beginning and 309.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.83ms. Allocated memory is still 354.4MB. Free memory was 309.1MB in the beginning and 308.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 266.32ms. Allocated memory is still 354.4MB. Free memory was 308.0MB in the beginning and 297.1MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 1052.12ms. Allocated memory is still 354.4MB. Free memory was 296.6MB in the beginning and 268.1MB in the end (delta: 28.4MB). Peak memory consumption was 30.5MB. 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: 0.8s, 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: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, 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! [2023-08-25 18:44:31,472 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...