./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 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/ldv-memsafety/ArraysOfVariableLength_-read.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-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 32bit --witnessprinter.graph.data.programhash ae57481434c4d2d83f3418f57c937e0ced919170ca4bdab03ab9b5db6056f353 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 16:20:41,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 16:20:41,638 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 16:20:41,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 16:20:41,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 16:20:41,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 16:20:41,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 16:20:41,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 16:20:41,678 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 16:20:41,679 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 16:20:41,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 16:20:41,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 16:20:41,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 16:20:41,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 16:20:41,681 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 16:20:41,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 16:20:41,683 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 16:20:41,684 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 16:20:41,684 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 16:20:41,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 16:20:41,687 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 16:20:41,688 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 16:20:41,688 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 16:20:41,689 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 16:20:41,689 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 16:20:41,689 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 16:20:41,689 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 16:20:41,690 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 16:20:41,690 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 16:20:41,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 16:20:41,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 16:20:41,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 16:20:41,691 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 16:20:41,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 16:20:41,691 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 16:20:41,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 16:20:41,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 16:20:41,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 16:20:41,692 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 16:20:41,692 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 16:20:41,692 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 16:20:41,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 16:20:41,693 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae57481434c4d2d83f3418f57c937e0ced919170ca4bdab03ab9b5db6056f353 [2024-10-24 16:20:41,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 16:20:42,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 16:20:42,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 16:20:42,031 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 16:20:42,032 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 16:20:42,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2024-10-24 16:20:43,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 16:20:43,634 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 16:20:43,635 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength_-read.c [2024-10-24 16:20:43,648 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b526c3fd2/626408b8207a4f82b6ce1ed5edffe57c/FLAG51d5df4bd [2024-10-24 16:20:44,011 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b526c3fd2/626408b8207a4f82b6ce1ed5edffe57c [2024-10-24 16:20:44,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 16:20:44,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 16:20:44,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 16:20:44,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 16:20:44,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 16:20:44,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f79316c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44, skipping insertion in model container [2024-10-24 16:20:44,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,045 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 16:20:44,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 16:20:44,226 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 16:20:44,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 16:20:44,261 INFO L204 MainTranslator]: Completed translation [2024-10-24 16:20:44,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44 WrapperNode [2024-10-24 16:20:44,262 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 16:20:44,263 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 16:20:44,263 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 16:20:44,263 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 16:20:44,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,278 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,300 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57 [2024-10-24 16:20:44,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 16:20:44,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 16:20:44,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 16:20:44,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 16:20:44,312 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,318 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,337 INFO L175 MemorySlicer]: Split 3 memory accesses to 1 slices as follows [3]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 1 writes are split as follows [1]. [2024-10-24 16:20:44,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,338 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,345 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 16:20:44,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 16:20:44,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 16:20:44,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 16:20:44,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (1/1) ... [2024-10-24 16:20:44,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 16:20:44,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 16:20:44,399 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) [2024-10-24 16:20:44,401 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 [2024-10-24 16:20:44,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 16:20:44,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 16:20:44,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 16:20:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 16:20:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 16:20:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 16:20:44,506 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 16:20:44,508 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 16:20:44,703 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-10-24 16:20:44,706 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 16:20:44,751 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 16:20:44,751 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-24 16:20:44,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:20:44 BoogieIcfgContainer [2024-10-24 16:20:44,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 16:20:44,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 16:20:44,754 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 16:20:44,757 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 16:20:44,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:20:44" (1/3) ... [2024-10-24 16:20:44,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3800cdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:20:44, skipping insertion in model container [2024-10-24 16:20:44,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:20:44" (2/3) ... [2024-10-24 16:20:44,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3800cdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:20:44, skipping insertion in model container [2024-10-24 16:20:44,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:20:44" (3/3) ... [2024-10-24 16:20:44,760 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_-read.c [2024-10-24 16:20:44,773 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 16:20:44,773 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-24 16:20:44,808 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 16:20:44,813 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;@3180d133, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 16:20:44,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-24 16:20:44,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 16:20:44,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-24 16:20:44,822 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 16:20:44,823 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-24 16:20:44,823 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX === [ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2024-10-24 16:20:44,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 16:20:44,828 INFO L85 PathProgramCache]: Analyzing trace with hash 3108451, now seen corresponding path program 1 times [2024-10-24 16:20:44,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 16:20:44,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648665564] [2024-10-24 16:20:44,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 16:20:44,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 16:20:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 16:20:44,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 16:20:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 16:20:44,967 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 16:20:44,969 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 16:20:44,970 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONARRAY_INDEX (7 of 8 remaining) [2024-10-24 16:20:44,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2024-10-24 16:20:44,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2024-10-24 16:20:44,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2024-10-24 16:20:44,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 8 remaining) [2024-10-24 16:20:44,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 8 remaining) [2024-10-24 16:20:44,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 8 remaining) [2024-10-24 16:20:44,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2024-10-24 16:20:44,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 16:20:44,980 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-24 16:20:44,999 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 16:20:45,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:20:45 BoogieIcfgContainer [2024-10-24 16:20:45,002 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 16:20:45,003 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 16:20:45,003 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 16:20:45,003 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 16:20:45,004 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:20:44" (3/4) ... [2024-10-24 16:20:45,005 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-24 16:20:45,035 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 16:20:45,035 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 16:20:45,036 INFO L158 Benchmark]: Toolchain (without parser) took 1020.96ms. Allocated memory is still 163.6MB. Free memory was 127.2MB in the beginning and 115.1MB in the end (delta: 12.2MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2024-10-24 16:20:45,036 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 16:20:45,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.94ms. Allocated memory is still 163.6MB. Free memory was 127.2MB in the beginning and 115.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 16:20:45,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.21ms. Allocated memory is still 163.6MB. Free memory was 115.4MB in the beginning and 114.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 16:20:45,038 INFO L158 Benchmark]: Boogie Preprocessor took 57.23ms. Allocated memory is still 163.6MB. Free memory was 113.3MB in the beginning and 112.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 16:20:45,038 INFO L158 Benchmark]: RCFGBuilder took 392.13ms. Allocated memory is still 163.6MB. Free memory was 112.0MB in the beginning and 131.8MB in the end (delta: -19.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 16:20:45,039 INFO L158 Benchmark]: TraceAbstraction took 248.93ms. Allocated memory is still 163.6MB. Free memory was 131.2MB in the beginning and 117.2MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 16:20:45,040 INFO L158 Benchmark]: Witness Printer took 32.15ms. Allocated memory is still 163.6MB. Free memory was 117.2MB in the beginning and 115.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 16:20:45,042 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.94ms. Allocated memory is still 163.6MB. Free memory was 127.2MB in the beginning and 115.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.21ms. Allocated memory is still 163.6MB. Free memory was 115.4MB in the beginning and 114.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.23ms. Allocated memory is still 163.6MB. Free memory was 113.3MB in the beginning and 112.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 392.13ms. Allocated memory is still 163.6MB. Free memory was 112.0MB in the beginning and 131.8MB in the end (delta: -19.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 248.93ms. Allocated memory is still 163.6MB. Free memory was 131.2MB in the beginning and 117.2MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 32.15ms. Allocated memory is still 163.6MB. Free memory was 117.2MB in the beginning and 115.1MB in the end (delta: 2.1MB). 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 - CounterExampleResult [Line: 15]: array index can be out of bounds array index can be out of bounds We found a FailurePath: [L21] int i, b[100]; [L22] i = 0 VAL [b={2:0}, i=0] [L22] COND TRUE i < 100 [L23] CALL foo(i, b, i) [L13] int a[n], i; [L14] i = 0 VAL [b={2:0}, i=0, n=0, size=0] [L14] COND TRUE i < size + 1 VAL [b={2:0}, i=0, n=0, size=0] [L15] a[i] VAL [b={2:0}, size=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: 20]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=22occurred 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 proved your program to be incorrect! [2024-10-24 16:20:45,069 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)