./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 14:33:12,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 14:33:12,339 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2024-11-20 14:33:12,345 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 14:33:12,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 14:33:12,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 14:33:12,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 14:33:12,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 14:33:12,382 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 14:33:12,386 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 14:33:12,386 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 14:33:12,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 14:33:12,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 14:33:12,387 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 14:33:12,388 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 14:33:12,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 14:33:12,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 14:33:12,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 14:33:12,389 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 14:33:12,389 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 14:33:12,389 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 14:33:12,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 14:33:12,392 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 14:33:12,392 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 14:33:12,392 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 14:33:12,393 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 14:33:12,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 14:33:12,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 14:33:12,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 14:33:12,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 14:33:12,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:33:12,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 14:33:12,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 14:33:12,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 14:33:12,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 14:33:12,397 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 14:33:12,397 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 14:33:12,397 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 14:33:12,397 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 14:33:12,398 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac [2024-11-20 14:33:12,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 14:33:12,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 14:33:12,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 14:33:12,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 14:33:12,694 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 14:33:12,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2024-11-20 14:33:14,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 14:33:14,399 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 14:33:14,400 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2024-11-20 14:33:14,408 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaf92dfb4/1f30f396daf94064bd92195ceec4cd80/FLAG10a3e3672 [2024-11-20 14:33:14,795 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaf92dfb4/1f30f396daf94064bd92195ceec4cd80 [2024-11-20 14:33:14,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 14:33:14,799 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 14:33:14,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 14:33:14,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 14:33:14,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 14:33:14,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:33:14" (1/1) ... [2024-11-20 14:33:14,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f715f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:14, skipping insertion in model container [2024-11-20 14:33:14,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:33:14" (1/1) ... [2024-11-20 14:33:14,824 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 14:33:15,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:33:15,047 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 14:33:15,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:33:15,080 INFO L204 MainTranslator]: Completed translation [2024-11-20 14:33:15,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15 WrapperNode [2024-11-20 14:33:15,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 14:33:15,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 14:33:15,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 14:33:15,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 14:33:15,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (1/1) ... [2024-11-20 14:33:15,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (1/1) ... [2024-11-20 14:33:15,116 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-11-20 14:33:15,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 14:33:15,117 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 14:33:15,117 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 14:33:15,117 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 14:33:15,128 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (1/1) ... [2024-11-20 14:33:15,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (1/1) ... [2024-11-20 14:33:15,130 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (1/1) ... [2024-11-20 14:33:15,147 INFO L175 MemorySlicer]: Split 6 memory accesses to 1 slices as follows [6]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3]. [2024-11-20 14:33:15,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (1/1) ... [2024-11-20 14:33:15,148 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (1/1) ... [2024-11-20 14:33:15,152 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (1/1) ... [2024-11-20 14:33:15,155 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (1/1) ... [2024-11-20 14:33:15,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (1/1) ... [2024-11-20 14:33:15,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (1/1) ... [2024-11-20 14:33:15,159 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 14:33:15,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 14:33:15,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 14:33:15,162 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 14:33:15,163 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (1/1) ... [2024-11-20 14:33:15,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:33:15,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:33:15,200 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 14:33:15,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 14:33:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 14:33:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 14:33:15,258 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2024-11-20 14:33:15,258 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2024-11-20 14:33:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 14:33:15,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 14:33:15,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 14:33:15,323 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 14:33:15,325 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 14:33:15,514 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-20 14:33:15,515 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 14:33:15,534 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 14:33:15,538 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 14:33:15,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:33:15 BoogieIcfgContainer [2024-11-20 14:33:15,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 14:33:15,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 14:33:15,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 14:33:15,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 14:33:15,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:33:14" (1/3) ... [2024-11-20 14:33:15,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a89c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:33:15, skipping insertion in model container [2024-11-20 14:33:15,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:15" (2/3) ... [2024-11-20 14:33:15,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a89c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:33:15, skipping insertion in model container [2024-11-20 14:33:15,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:33:15" (3/3) ... [2024-11-20 14:33:15,552 INFO L112 eAbstractionObserver]: Analyzing ICFG chunk1-2.i [2024-11-20 14:33:15,573 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 14:33:15,574 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-11-20 14:33:15,628 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:33:15,636 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@337a3e46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:33:15,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-20 14:33:15,641 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 16 states have (on average 1.9375) internal successors, (31), 31 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 14:33:15,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-20 14:33:15,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:33:15,649 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-20 14:33:15,651 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [chunkErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, chunkErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, chunkErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2024-11-20 14:33:15,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:33:15,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1572078, now seen corresponding path program 1 times [2024-11-20 14:33:15,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 14:33:15,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677342375] [2024-11-20 14:33:15,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:33:15,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 14:33:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:33:15,821 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:33:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:33:15,858 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 14:33:15,861 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:33:15,862 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2024-11-20 14:33:15,865 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2024-11-20 14:33:15,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2024-11-20 14:33:15,866 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2024-11-20 14:33:15,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2024-11-20 14:33:15,867 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2024-11-20 14:33:15,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2024-11-20 14:33:15,868 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2024-11-20 14:33:15,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 13 remaining) [2024-11-20 14:33:15,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 13 remaining) [2024-11-20 14:33:15,870 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 13 remaining) [2024-11-20 14:33:15,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 13 remaining) [2024-11-20 14:33:15,871 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 13 remaining) [2024-11-20 14:33:15,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 14:33:15,877 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-20 14:33:15,893 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 14:33:15,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 02:33:15 BoogieIcfgContainer [2024-11-20 14:33:15,898 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 14:33:15,899 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 14:33:15,899 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 14:33:15,899 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 14:33:15,900 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:33:15" (3/4) ... [2024-11-20 14:33:15,904 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 14:33:15,905 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 14:33:15,907 INFO L158 Benchmark]: Toolchain (without parser) took 1107.91ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 103.6MB in the beginning and 187.0MB in the end (delta: -83.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 14:33:15,908 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 159.4MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 14:33:15,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.41ms. Allocated memory is still 159.4MB. Free memory was 103.2MB in the beginning and 91.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-20 14:33:15,909 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.10ms. Allocated memory is still 159.4MB. Free memory was 91.9MB in the beginning and 90.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 14:33:15,910 INFO L158 Benchmark]: Boogie Preprocessor took 43.54ms. Allocated memory is still 159.4MB. Free memory was 90.2MB in the beginning and 88.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 14:33:15,911 INFO L158 Benchmark]: RCFGBuilder took 377.46ms. Allocated memory is still 159.4MB. Free memory was 88.5MB in the beginning and 75.0MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 14:33:15,913 INFO L158 Benchmark]: TraceAbstraction took 354.93ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 74.2MB in the beginning and 188.1MB in the end (delta: -113.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 14:33:15,914 INFO L158 Benchmark]: Witness Printer took 6.88ms. Allocated memory is still 222.3MB. Free memory was 188.1MB in the beginning and 187.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 14:33:15,916 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72ms. Allocated memory is still 159.4MB. Free memory is still 118.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.41ms. Allocated memory is still 159.4MB. Free memory was 103.2MB in the beginning and 91.9MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.10ms. Allocated memory is still 159.4MB. Free memory was 91.9MB in the beginning and 90.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.54ms. Allocated memory is still 159.4MB. Free memory was 90.2MB in the beginning and 88.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 377.46ms. Allocated memory is still 159.4MB. Free memory was 88.5MB in the beginning and 75.0MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 354.93ms. Allocated memory was 159.4MB in the beginning and 222.3MB in the end (delta: 62.9MB). Free memory was 74.2MB in the beginning and 188.1MB in the end (delta: -113.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.88ms. Allocated memory is still 222.3MB. Free memory was 188.1MB in the beginning and 187.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L20] int *data = malloc(4*sizeof(int)); [L22] int i = __VERIFIER_nondet_int(); [L23] int upper = __VERIFIER_nondet_int(); [L25] COND TRUE i >= upper [L26] return 0; VAL [\result=0, data={-1:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, 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, 4 NumberOfCodeBlocks, 4 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 could not prove your program: unable to determine feasibility of some traces [2024-11-20 14:33:15,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 14:33:18,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 14:33:18,339 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2024-11-20 14:33:18,345 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 14:33:18,345 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 14:33:18,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 14:33:18,379 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 14:33:18,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 14:33:18,380 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 14:33:18,380 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 14:33:18,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 14:33:18,381 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 14:33:18,382 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 14:33:18,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 14:33:18,384 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 14:33:18,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 14:33:18,386 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 14:33:18,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 14:33:18,388 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 14:33:18,388 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 14:33:18,389 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 14:33:18,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 14:33:18,390 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 14:33:18,391 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-20 14:33:18,391 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 14:33:18,391 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-20 14:33:18,391 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 14:33:18,392 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 14:33:18,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 14:33:18,392 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 14:33:18,393 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 14:33:18,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 14:33:18,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:33:18,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 14:33:18,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 14:33:18,394 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-20 14:33:18,395 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-20 14:33:18,395 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 14:33:18,396 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 14:33:18,396 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 14:33:18,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 14:33:18,396 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a66369f5c9a0270ee2408adc274f8f50150ff97d329dbc5d86329753dd9abac [2024-11-20 14:33:18,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 14:33:18,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 14:33:18,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 14:33:18,732 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 14:33:18,732 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 14:33:18,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2024-11-20 14:33:20,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 14:33:20,553 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 14:33:20,554 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-recursive-malloc/chunk1-2.i [2024-11-20 14:33:20,566 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/446178c06/2b06c85b67044b248cc9dc5b4803450a/FLAGbab8fe363 [2024-11-20 14:33:20,586 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/446178c06/2b06c85b67044b248cc9dc5b4803450a [2024-11-20 14:33:20,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 14:33:20,590 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 14:33:20,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 14:33:20,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 14:33:20,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 14:33:20,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5e184c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20, skipping insertion in model container [2024-11-20 14:33:20,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,623 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 14:33:20,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:33:20,834 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 14:33:20,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 14:33:20,873 INFO L204 MainTranslator]: Completed translation [2024-11-20 14:33:20,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20 WrapperNode [2024-11-20 14:33:20,873 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 14:33:20,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 14:33:20,875 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 14:33:20,875 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 14:33:20,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,907 INFO L138 Inliner]: procedures = 11, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-11-20 14:33:20,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 14:33:20,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 14:33:20,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 14:33:20,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 14:33:20,919 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,923 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,937 INFO L175 MemorySlicer]: Split 6 memory accesses to 1 slices as follows [6]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3]. [2024-11-20 14:33:20,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 14:33:20,961 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 14:33:20,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 14:33:20,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 14:33:20,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (1/1) ... [2024-11-20 14:33:20,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 14:33:20,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 14:33:21,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 14:33:21,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 14:33:21,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 14:33:21,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-20 14:33:21,063 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2024-11-20 14:33:21,063 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2024-11-20 14:33:21,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 14:33:21,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 14:33:21,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-20 14:33:21,128 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 14:33:21,131 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 14:33:21,447 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-20 14:33:21,448 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 14:33:21,467 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 14:33:21,468 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 14:33:21,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:33:21 BoogieIcfgContainer [2024-11-20 14:33:21,468 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 14:33:21,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 14:33:21,470 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 14:33:21,474 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 14:33:21,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:33:20" (1/3) ... [2024-11-20 14:33:21,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389b3f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:33:21, skipping insertion in model container [2024-11-20 14:33:21,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:20" (2/3) ... [2024-11-20 14:33:21,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389b3f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:33:21, skipping insertion in model container [2024-11-20 14:33:21,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:33:21" (3/3) ... [2024-11-20 14:33:21,478 INFO L112 eAbstractionObserver]: Analyzing ICFG chunk1-2.i [2024-11-20 14:33:21,496 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 14:33:21,497 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-11-20 14:33:21,551 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 14:33:21,560 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@50a83f12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 14:33:21,561 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-20 14:33:21,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 16 states have (on average 1.9375) internal successors, (31), 31 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-20 14:33:21,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-20 14:33:21,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 14:33:21,573 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-20 14:33:21,574 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [chunkErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, chunkErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, chunkErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2024-11-20 14:33:21,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 14:33:21,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1572078, now seen corresponding path program 1 times [2024-11-20 14:33:21,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 14:33:21,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728995048] [2024-11-20 14:33:21,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 14:33:21,596 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 14:33:21,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 14:33:21,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 14:33:21,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-20 14:33:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:33:21,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 14:33:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 14:33:21,688 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-20 14:33:21,690 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 14:33:21,698 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2024-11-20 14:33:21,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2024-11-20 14:33:21,701 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2024-11-20 14:33:21,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2024-11-20 14:33:21,702 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2024-11-20 14:33:21,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2024-11-20 14:33:21,703 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2024-11-20 14:33:21,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2024-11-20 14:33:21,704 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location chunkErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 13 remaining) [2024-11-20 14:33:21,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 13 remaining) [2024-11-20 14:33:21,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 13 remaining) [2024-11-20 14:33:21,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 13 remaining) [2024-11-20 14:33:21,705 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 13 remaining) [2024-11-20 14:33:21,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-20 14:33:21,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 14:33:21,913 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-20 14:33:21,929 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 14:33:21,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 02:33:21 BoogieIcfgContainer [2024-11-20 14:33:21,933 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 14:33:21,933 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 14:33:21,933 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 14:33:21,934 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 14:33:21,934 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:33:21" (3/4) ... [2024-11-20 14:33:21,937 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-20 14:33:21,938 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 14:33:21,940 INFO L158 Benchmark]: Toolchain (without parser) took 1349.00ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 45.8MB in the beginning and 58.2MB in the end (delta: -12.4MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2024-11-20 14:33:21,940 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory was 29.4MB in the beginning and 29.4MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 14:33:21,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.34ms. Allocated memory is still 67.1MB. Free memory was 45.6MB in the beginning and 33.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-20 14:33:21,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.65ms. Allocated memory is still 67.1MB. Free memory was 33.6MB in the beginning and 32.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 14:33:21,942 INFO L158 Benchmark]: Boogie Preprocessor took 52.72ms. Allocated memory is still 67.1MB. Free memory was 32.2MB in the beginning and 30.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 14:33:21,942 INFO L158 Benchmark]: RCFGBuilder took 507.11ms. Allocated memory is still 67.1MB. Free memory was 30.4MB in the beginning and 36.8MB in the end (delta: -6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-20 14:33:21,943 INFO L158 Benchmark]: TraceAbstraction took 462.58ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 36.3MB in the beginning and 58.7MB in the end (delta: -22.4MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-11-20 14:33:21,943 INFO L158 Benchmark]: Witness Printer took 5.14ms. Allocated memory is still 81.8MB. Free memory was 58.7MB in the beginning and 58.2MB in the end (delta: 465.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 14:33:21,946 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 48.2MB. Free memory was 29.4MB in the beginning and 29.4MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.34ms. Allocated memory is still 67.1MB. Free memory was 45.6MB in the beginning and 33.8MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.65ms. Allocated memory is still 67.1MB. Free memory was 33.6MB in the beginning and 32.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.72ms. Allocated memory is still 67.1MB. Free memory was 32.2MB in the beginning and 30.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.11ms. Allocated memory is still 67.1MB. Free memory was 30.4MB in the beginning and 36.8MB in the end (delta: -6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 462.58ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 36.3MB in the beginning and 58.7MB in the end (delta: -22.4MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Witness Printer took 5.14ms. Allocated memory is still 81.8MB. Free memory was 58.7MB in the beginning and 58.2MB in the end (delta: 465.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L20] int *data = malloc(4*sizeof(int)); [L22] int i = __VERIFIER_nondet_int(); [L23] int upper = __VERIFIER_nondet_int(); [L25] COND TRUE i >= upper [L26] return 0; VAL [\result=0, data={1:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, 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, 4 NumberOfCodeBlocks, 4 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 could not prove your program: unable to determine feasibility of some traces [2024-11-20 14:33:21,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample