/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_17-traces-rpb-litmus_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 23:00:58,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 23:00:58,287 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 23:00:58,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 23:00:58,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 23:00:58,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 23:00:58,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 23:00:58,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 23:00:58,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 23:00:58,325 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 23:00:58,325 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 23:00:58,325 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 23:00:58,325 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 23:00:58,326 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 23:00:58,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 23:00:58,327 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 23:00:58,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 23:00:58,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 23:00:58,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 23:00:58,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 23:00:58,328 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 23:00:58,329 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 23:00:58,329 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 23:00:58,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 23:00:58,330 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 23:00:58,330 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 23:00:58,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 23:00:58,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:00:58,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 23:00:58,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 23:00:58,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 23:00:58,332 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 23:00:58,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 23:00:58,332 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 23:00:58,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 23:00:58,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 23:00:58,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 23:00:58,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 23:00:58,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 23:00:58,673 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 23:00:58,673 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 23:00:58,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-26 23:00:59,927 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 23:01:00,200 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 23:01:00,200 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-26 23:01:00,218 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46944bbdf/d338a94131b44e57b7a8595ba090d446/FLAG4a00c9c85 [2023-08-26 23:01:00,235 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46944bbdf/d338a94131b44e57b7a8595ba090d446 [2023-08-26 23:01:00,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 23:01:00,238 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 23:01:00,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 23:01:00,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 23:01:00,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 23:01:00,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a349cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00, skipping insertion in model container [2023-08-26 23:01:00,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,275 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 23:01:00,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:01:00,540 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 23:01:00,567 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-26 23:01:00,569 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-26 23:01:00,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 23:01:00,632 INFO L206 MainTranslator]: Completed translation [2023-08-26 23:01:00,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00 WrapperNode [2023-08-26 23:01:00,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 23:01:00,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 23:01:00,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 23:01:00,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 23:01:00,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,672 INFO L138 Inliner]: procedures = 163, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2023-08-26 23:01:00,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 23:01:00,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 23:01:00,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 23:01:00,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 23:01:00,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,683 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 23:01:00,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 23:01:00,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 23:01:00,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 23:01:00,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00" (1/1) ... [2023-08-26 23:01:00,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 23:01:00,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 23:01:00,738 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 23:01:00,753 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 23:01:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 23:01:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 23:01:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 23:01:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 23:01:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 23:01:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 23:01:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 23:01:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 23:01:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 23:01:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 23:01:00,776 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 23:01:00,880 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 23:01:00,882 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 23:01:01,013 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 23:01:01,019 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 23:01:01,020 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 23:01:01,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:01:01 BoogieIcfgContainer [2023-08-26 23:01:01,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 23:01:01,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 23:01:01,023 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 23:01:01,026 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 23:01:01,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 11:01:00" (1/3) ... [2023-08-26 23:01:01,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbab21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:01:01, skipping insertion in model container [2023-08-26 23:01:01,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 11:01:00" (2/3) ... [2023-08-26 23:01:01,027 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dbab21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 11:01:01, skipping insertion in model container [2023-08-26 23:01:01,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 11:01:01" (3/3) ... [2023-08-26 23:01:01,028 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-26 23:01:01,043 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 23:01:01,044 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-26 23:01:01,044 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 23:01:01,086 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 23:01:01,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 77 transitions, 159 flow [2023-08-26 23:01:01,154 INFO L124 PetriNetUnfolderBase]: 3/76 cut-off events. [2023-08-26 23:01:01,154 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:01:01,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2023-08-26 23:01:01,158 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 77 transitions, 159 flow [2023-08-26 23:01:01,162 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 64 transitions, 131 flow [2023-08-26 23:01:01,165 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 23:01:01,173 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 64 transitions, 131 flow [2023-08-26 23:01:01,176 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 64 transitions, 131 flow [2023-08-26 23:01:01,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 64 transitions, 131 flow [2023-08-26 23:01:01,196 INFO L124 PetriNetUnfolderBase]: 1/64 cut-off events. [2023-08-26 23:01:01,196 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:01:01,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 64 events. 1/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-26 23:01:01,197 INFO L119 LiptonReduction]: Number of co-enabled transitions 400 [2023-08-26 23:01:03,550 INFO L134 LiptonReduction]: Checked pairs total: 1159 [2023-08-26 23:01:03,550 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-08-26 23:01:03,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 23:01:03,569 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;@62a9710f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 23:01:03,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-26 23:01:03,573 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 23:01:03,573 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-08-26 23:01:03,573 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 23:01:03,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 23:01:03,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 23:01:03,574 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-26 23:01:03,579 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 23:01:03,579 INFO L85 PathProgramCache]: Analyzing trace with hash 248403630, now seen corresponding path program 1 times [2023-08-26 23:01:03,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 23:01:03,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582507650] [2023-08-26 23:01:03,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 23:01:03,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 23:01:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 23:01:03,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 23:01:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 23:01:03,736 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 23:01:03,738 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 23:01:03,739 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2023-08-26 23:01:03,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-26 23:01:03,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 23:01:03,741 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 23:01:03,747 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 23:01:03,747 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 23:01:03,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 11:01:03 BasicIcfg [2023-08-26 23:01:03,763 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 23:01:03,765 INFO L158 Benchmark]: Toolchain (without parser) took 3526.09ms. Allocated memory was 371.2MB in the beginning and 501.2MB in the end (delta: 130.0MB). Free memory was 344.3MB in the beginning and 384.1MB in the end (delta: -39.8MB). Peak memory consumption was 92.3MB. Max. memory is 16.0GB. [2023-08-26 23:01:03,765 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 371.2MB. Free memory is still 347.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:01:03,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.61ms. Allocated memory is still 371.2MB. Free memory was 344.3MB in the beginning and 325.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 23:01:03,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.40ms. Allocated memory is still 371.2MB. Free memory was 325.4MB in the beginning and 323.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 23:01:03,766 INFO L158 Benchmark]: Boogie Preprocessor took 20.41ms. Allocated memory is still 371.2MB. Free memory was 323.3MB in the beginning and 322.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 23:01:03,767 INFO L158 Benchmark]: RCFGBuilder took 327.05ms. Allocated memory is still 371.2MB. Free memory was 322.3MB in the beginning and 308.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-26 23:01:03,767 INFO L158 Benchmark]: TraceAbstraction took 2740.40ms. Allocated memory was 371.2MB in the beginning and 501.2MB in the end (delta: 130.0MB). Free memory was 307.6MB in the beginning and 384.1MB in the end (delta: -76.5MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. [2023-08-26 23:01:03,770 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 371.2MB. Free memory is still 347.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 393.61ms. Allocated memory is still 371.2MB. Free memory was 344.3MB in the beginning and 325.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.40ms. Allocated memory is still 371.2MB. Free memory was 325.4MB in the beginning and 323.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.41ms. Allocated memory is still 371.2MB. Free memory was 323.3MB in the beginning and 322.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 327.05ms. Allocated memory is still 371.2MB. Free memory was 322.3MB in the beginning and 308.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 2740.40ms. Allocated memory was 371.2MB in the beginning and 501.2MB in the end (delta: 130.0MB). Free memory was 307.6MB in the beginning and 384.1MB in the end (delta: -76.5MB). Peak memory consumption was 56.6MB. 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: 2.4s, 67 PlacesBefore, 18 PlacesAfterwards, 64 TransitionsBefore, 15 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 1159 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 492, independent: 357, independent conditional: 0, independent unconditional: 357, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 206, independent: 184, independent conditional: 0, independent unconditional: 184, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 492, independent: 173, independent conditional: 0, independent unconditional: 173, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 206, unknown conditional: 0, unknown unconditional: 206] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) [L18] 0 __assert_fail ("0", "36-apron_17-traces-rpb-litmus_unknown_1_pos.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42] - UnprovableResult [Line: 697]: 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, 87 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 5 NumberOfCodeBlocks, 5 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 23:01:03,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...