/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 PROGRAM_FIRST -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_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 12:08:47,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 12:08:47,486 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 [2023-08-27 12:08:47,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 12:08:47,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 12:08:47,504 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 12:08:47,505 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 12:08:47,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 12:08:47,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 12:08:47,506 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 12:08:47,506 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 12:08:47,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 12:08:47,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 12:08:47,507 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 12:08:47,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 12:08:47,508 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 12:08:47,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 12:08:47,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 12:08:47,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 12:08:47,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 12:08:47,509 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 12:08:47,509 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 12:08:47,509 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 12:08:47,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 12:08:47,510 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 12:08:47,510 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 12:08:47,510 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 12:08:47,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:08:47,511 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 12:08:47,511 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 12:08:47,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 12:08:47,511 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 12:08:47,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 12:08:47,511 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 12:08:47,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 12:08:47,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 12:08:47,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 12:08:47,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 12:08:47,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 12:08:47,741 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 12:08:47,742 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 12:08:47,743 INFO L431 ainManager$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_pos.i [2023-08-27 12:08:48,787 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 12:08:49,036 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 12:08:49,036 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-08-27 12:08:49,047 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a289c12f5/ec912af6d06a4c298f57046018281239/FLAG45c8100c4 [2023-08-27 12:08:49,058 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a289c12f5/ec912af6d06a4c298f57046018281239 [2023-08-27 12:08:49,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 12:08:49,061 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 12:08:49,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 12:08:49,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 12:08:49,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 12:08:49,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb40bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49, skipping insertion in model container [2023-08-27 12:08:49,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,096 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 12:08:49,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:08:49,286 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 12:08:49,298 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-27 12:08:49,313 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-27 12:08:49,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 12:08:49,352 INFO L206 MainTranslator]: Completed translation [2023-08-27 12:08:49,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49 WrapperNode [2023-08-27 12:08:49,354 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 12:08:49,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 12:08:49,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 12:08:49,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 12:08:49,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,378 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,394 INFO L138 Inliner]: procedures = 162, calls = 13, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 39 [2023-08-27 12:08:49,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 12:08:49,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 12:08:49,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 12:08:49,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 12:08:49,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 12:08:49,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 12:08:49,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 12:08:49,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 12:08:49,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49" (1/1) ... [2023-08-27 12:08:49,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 12:08:49,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 12:08:49,450 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) [2023-08-27 12:08:49,468 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 [2023-08-27 12:08:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 12:08:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 12:08:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 12:08:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-27 12:08:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-27 12:08:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 12:08:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 12:08:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 12:08:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 12:08:49,478 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 12:08:49,601 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 12:08:49,602 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 12:08:49,702 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 12:08:49,705 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 12:08:49,706 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 12:08:49,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:08:49 BoogieIcfgContainer [2023-08-27 12:08:49,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 12:08:49,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 12:08:49,708 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 12:08:49,710 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 12:08:49,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 12:08:49" (1/3) ... [2023-08-27 12:08:49,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4202e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:08:49, skipping insertion in model container [2023-08-27 12:08:49,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 12:08:49" (2/3) ... [2023-08-27 12:08:49,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4202e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 12:08:49, skipping insertion in model container [2023-08-27 12:08:49,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 12:08:49" (3/3) ... [2023-08-27 12:08:49,712 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-08-27 12:08:49,730 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 12:08:49,730 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-27 12:08:49,731 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 12:08:49,773 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 12:08:49,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 89 flow [2023-08-27 12:08:49,829 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2023-08-27 12:08:49,829 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:08:49,832 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. [2023-08-27 12:08:49,832 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 89 flow [2023-08-27 12:08:49,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 34 transitions, 71 flow [2023-08-27 12:08:49,837 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 12:08:49,846 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 34 transitions, 71 flow [2023-08-27 12:08:49,849 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 34 transitions, 71 flow [2023-08-27 12:08:49,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 71 flow [2023-08-27 12:08:49,867 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2023-08-27 12:08:49,867 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:08:49,867 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. [2023-08-27 12:08:49,868 INFO L119 LiptonReduction]: Number of co-enabled transitions 168 [2023-08-27 12:08:50,688 INFO L134 LiptonReduction]: Checked pairs total: 106 [2023-08-27 12:08:50,688 INFO L136 LiptonReduction]: Total number of compositions: 30 [2023-08-27 12:08:50,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 12:08:50,700 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;@1b8b33d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 12:08:50,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-27 12:08:50,702 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 12:08:50,702 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-27 12:08:50,702 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 12:08:50,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 12:08:50,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-27 12:08:50,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONASSERT, t_funErr0ASSERT_VIOLATIONASSERT] === [2023-08-27 12:08:50,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 12:08:50,705 INFO L85 PathProgramCache]: Analyzing trace with hash 170857, now seen corresponding path program 1 times [2023-08-27 12:08:50,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 12:08:50,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457632372] [2023-08-27 12:08:50,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 12:08:50,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 12:08:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 12:08:50,775 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 12:08:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 12:08:50,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 12:08:50,796 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 12:08:50,797 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-08-27 12:08:50,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-27 12:08:50,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONASSERT (0 of 3 remaining) [2023-08-27 12:08:50,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 12:08:50,799 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-27 12:08:50,803 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 12:08:50,803 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 12:08:50,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 12:08:50 BasicIcfg [2023-08-27 12:08:50,812 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 12:08:50,813 INFO L158 Benchmark]: Toolchain (without parser) took 1751.94ms. Allocated memory is still 358.6MB. Free memory was 333.3MB in the beginning and 268.6MB in the end (delta: 64.7MB). Peak memory consumption was 66.1MB. Max. memory is 16.0GB. [2023-08-27 12:08:50,814 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 358.6MB. Free memory was 335.5MB in the beginning and 335.4MB in the end (delta: 94.1kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 12:08:50,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.10ms. Allocated memory is still 358.6MB. Free memory was 332.9MB in the beginning and 313.6MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-27 12:08:50,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.07ms. Allocated memory is still 358.6MB. Free memory was 313.6MB in the beginning and 311.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 12:08:50,815 INFO L158 Benchmark]: Boogie Preprocessor took 26.68ms. Allocated memory is still 358.6MB. Free memory was 311.5MB in the beginning and 310.6MB in the end (delta: 944.1kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 12:08:50,815 INFO L158 Benchmark]: RCFGBuilder took 284.12ms. Allocated memory is still 358.6MB. Free memory was 310.2MB in the beginning and 299.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-27 12:08:50,815 INFO L158 Benchmark]: TraceAbstraction took 1104.23ms. Allocated memory is still 358.6MB. Free memory was 298.7MB in the beginning and 268.6MB in the end (delta: 30.1MB). Peak memory consumption was 32.5MB. Max. memory is 16.0GB. [2023-08-27 12:08:50,817 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 358.6MB. Free memory was 335.5MB in the beginning and 335.4MB in the end (delta: 94.1kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 292.10ms. Allocated memory is still 358.6MB. Free memory was 332.9MB in the beginning and 313.6MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.07ms. Allocated memory is still 358.6MB. Free memory was 313.6MB in the beginning and 311.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.68ms. Allocated memory is still 358.6MB. Free memory was 311.5MB in the beginning and 310.6MB in the end (delta: 944.1kB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 284.12ms. Allocated memory is still 358.6MB. Free memory was 310.2MB in the beginning and 299.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * TraceAbstraction took 1104.23ms. Allocated memory is still 358.6MB. Free memory was 298.7MB in the beginning and 268.6MB in the end (delta: 30.1MB). Peak memory consumption was 32.5MB. 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_pos.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! [2023-08-27 12:08:50,846 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...