./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d 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/array-memsafety/stroeder1_unsafe.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 c2abc4818f3da11ae6301593bd436ebe629d07f999067705d8f0ca0fc41bf695 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 10:32:12,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 10:32:12,176 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 10:32:12,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 10:32:12,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 10:32:12,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 10:32:12,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 10:32:12,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 10:32:12,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 10:32:12,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 10:32:12,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 10:32:12,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 10:32:12,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 10:32:12,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 10:32:12,217 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 10:32:12,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 10:32:12,217 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 10:32:12,218 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 10:32:12,218 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 10:32:12,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 10:32:12,219 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 10:32:12,221 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 10:32:12,221 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 10:32:12,221 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 10:32:12,222 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 10:32:12,222 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 10:32:12,222 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 10:32:12,222 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 10:32:12,222 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 10:32:12,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 10:32:12,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 10:32:12,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 10:32:12,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 10:32:12,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:32:12,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 10:32:12,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 10:32:12,224 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 10:32:12,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 10:32:12,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 10:32:12,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 10:32:12,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 10:32:12,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 10:32:12,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2abc4818f3da11ae6301593bd436ebe629d07f999067705d8f0ca0fc41bf695 [2024-10-13 10:32:12,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 10:32:12,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 10:32:12,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 10:32:12,535 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 10:32:12,536 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 10:32:12,537 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2024-10-13 10:32:13,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 10:32:14,111 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 10:32:14,111 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/stroeder1_unsafe.c [2024-10-13 10:32:14,119 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abedf39c9/7d7d0f85e6644308b352c52e40816e09/FLAG4fa09ff0a [2024-10-13 10:32:14,134 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abedf39c9/7d7d0f85e6644308b352c52e40816e09 [2024-10-13 10:32:14,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 10:32:14,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 10:32:14,140 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 10:32:14,140 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 10:32:14,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 10:32:14,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae1187e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14, skipping insertion in model container [2024-10-13 10:32:14,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 10:32:14,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:32:14,375 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 10:32:14,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:32:14,406 INFO L204 MainTranslator]: Completed translation [2024-10-13 10:32:14,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14 WrapperNode [2024-10-13 10:32:14,407 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 10:32:14,408 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 10:32:14,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 10:32:14,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 10:32:14,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,422 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,439 INFO L138 Inliner]: procedures = 8, calls = 4, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2024-10-13 10:32:14,440 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 10:32:14,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 10:32:14,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 10:32:14,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 10:32:14,450 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,469 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 0 writes are split as follows [0]. [2024-10-13 10:32:14,470 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,480 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 10:32:14,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 10:32:14,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 10:32:14,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 10:32:14,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (1/1) ... [2024-10-13 10:32:14,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:32:14,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:32:14,523 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) [2024-10-13 10:32:14,526 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 [2024-10-13 10:32:14,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 10:32:14,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 10:32:14,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 10:32:14,665 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 10:32:14,667 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 10:32:14,789 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-10-13 10:32:14,789 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 10:32:14,846 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 10:32:14,846 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 10:32:14,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:32:14 BoogieIcfgContainer [2024-10-13 10:32:14,848 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 10:32:14,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 10:32:14,851 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 10:32:14,855 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 10:32:14,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:32:14" (1/3) ... [2024-10-13 10:32:14,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1aa6d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:32:14, skipping insertion in model container [2024-10-13 10:32:14,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:32:14" (2/3) ... [2024-10-13 10:32:14,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1aa6d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:32:14, skipping insertion in model container [2024-10-13 10:32:14,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:32:14" (3/3) ... [2024-10-13 10:32:14,860 INFO L112 eAbstractionObserver]: Analyzing ICFG stroeder1_unsafe.c [2024-10-13 10:32:14,877 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 10:32:14,878 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-13 10:32:14,930 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 10:32:14,939 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;@58bd956e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 10:32:14,939 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-13 10:32:14,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 5 states have (on average 2.0) internal successors, (10), 8 states have internal predecessors, (10), 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) [2024-10-13 10:32:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-13 10:32:14,950 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 10:32:14,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-13 10:32:14,952 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-10-13 10:32:14,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:32:14,958 INFO L85 PathProgramCache]: Analyzing trace with hash 57021, now seen corresponding path program 1 times [2024-10-13 10:32:14,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:32:14,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223852678] [2024-10-13 10:32:14,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:32:14,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:32:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 10:32:15,052 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 10:32:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 10:32:15,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 10:32:15,094 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 10:32:15,095 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2024-10-13 10:32:15,097 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2024-10-13 10:32:15,098 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2024-10-13 10:32:15,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 10:32:15,104 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-13 10:32:15,123 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 10:32:15,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:32:15 BoogieIcfgContainer [2024-10-13 10:32:15,128 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 10:32:15,129 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 10:32:15,130 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 10:32:15,130 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 10:32:15,131 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:32:14" (3/4) ... [2024-10-13 10:32:15,132 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-13 10:32:15,173 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 10:32:15,175 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 10:32:15,177 INFO L158 Benchmark]: Toolchain (without parser) took 1038.48ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 62.7MB in the beginning and 120.9MB in the end (delta: -58.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 10:32:15,177 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 10:32:15,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.02ms. Allocated memory is still 132.1MB. Free memory was 62.7MB in the beginning and 51.1MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 10:32:15,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.70ms. Allocated memory is still 132.1MB. Free memory was 51.1MB in the beginning and 49.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 10:32:15,183 INFO L158 Benchmark]: Boogie Preprocessor took 44.04ms. Allocated memory is still 132.1MB. Free memory was 49.8MB in the beginning and 48.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 10:32:15,184 INFO L158 Benchmark]: RCFGBuilder took 363.11ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 48.0MB in the beginning and 135.7MB in the end (delta: -87.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-10-13 10:32:15,184 INFO L158 Benchmark]: TraceAbstraction took 277.51ms. Allocated memory is still 172.0MB. Free memory was 135.7MB in the beginning and 122.9MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 10:32:15,185 INFO L158 Benchmark]: Witness Printer took 47.01ms. Allocated memory is still 172.0MB. Free memory was 122.9MB in the beginning and 120.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 10:32:15,187 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.02ms. Allocated memory is still 132.1MB. Free memory was 62.7MB in the beginning and 51.1MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.70ms. Allocated memory is still 132.1MB. Free memory was 51.1MB in the beginning and 49.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.04ms. Allocated memory is still 132.1MB. Free memory was 49.8MB in the beginning and 48.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 363.11ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 48.0MB in the beginning and 135.7MB in the end (delta: -87.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * TraceAbstraction took 277.51ms. Allocated memory is still 172.0MB. Free memory was 135.7MB in the beginning and 122.9MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 47.01ms. Allocated memory is still 172.0MB. Free memory was 122.9MB in the beginning and 120.9MB 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L17] int* numbers; [L18] int array_size = __VERIFIER_nondet_int(); [L19] CALL sumOfThirdBytes(numbers, array_size) [L5] int i, sum; [L6] char* p; [L7] sum = 0 [L8] i = 0 VAL [array_size=1, i=0, sum=0] [L8] COND TRUE i < array_size [L9] p = &(numbers[i]) [L10] p = p + 2 VAL [array_size=1, i=0, numbers={3:-2}, p={3:0}, sum=0] [L11] \read(*p) - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 16]: 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, 9 locations, 3 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=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-13 10:32:15,216 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)