./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/loops/insertion_sort-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/loops/insertion_sort-2.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 e6909fdbd47ee7cc9ac1cfcb139a86d0e022eb1f9eab8a625d6818fa3999b29d --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 08:07:13,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 08:07:14,019 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 08:07:14,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 08:07:14,029 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 08:07:14,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 08:07:14,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 08:07:14,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 08:07:14,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 08:07:14,055 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 08:07:14,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 08:07:14,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 08:07:14,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 08:07:14,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 08:07:14,056 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 08:07:14,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 08:07:14,057 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 08:07:14,058 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 08:07:14,058 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 08:07:14,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 08:07:14,059 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 08:07:14,059 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 08:07:14,060 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 08:07:14,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 08:07:14,060 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 08:07:14,061 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 08:07:14,061 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 08:07:14,061 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 08:07:14,062 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 08:07:14,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 08:07:14,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 08:07:14,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 08:07:14,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 08:07:14,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 08:07:14,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 08:07:14,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 08:07:14,064 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 08:07:14,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 08:07:14,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 08:07:14,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 08:07:14,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 08:07:14,066 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 08:07:14,066 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6909fdbd47ee7cc9ac1cfcb139a86d0e022eb1f9eab8a625d6818fa3999b29d [2024-11-09 08:07:14,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 08:07:14,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 08:07:14,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 08:07:14,343 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 08:07:14,343 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 08:07:14,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/insertion_sort-2.c [2024-11-09 08:07:15,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 08:07:16,000 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 08:07:16,000 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/insertion_sort-2.c [2024-11-09 08:07:16,007 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8abdd70ab/6e0832a1cacd4c51944366b5c78a3378/FLAGdd30e94e5 [2024-11-09 08:07:16,019 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8abdd70ab/6e0832a1cacd4c51944366b5c78a3378 [2024-11-09 08:07:16,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 08:07:16,023 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 08:07:16,024 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 08:07:16,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 08:07:16,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 08:07:16,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fd9e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16, skipping insertion in model container [2024-11-09 08:07:16,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,048 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 08:07:16,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 08:07:16,269 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 08:07:16,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 08:07:16,307 INFO L204 MainTranslator]: Completed translation [2024-11-09 08:07:16,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16 WrapperNode [2024-11-09 08:07:16,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 08:07:16,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 08:07:16,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 08:07:16,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 08:07:16,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,353 INFO L138 Inliner]: procedures = 15, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2024-11-09 08:07:16,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 08:07:16,354 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 08:07:16,354 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 08:07:16,354 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 08:07:16,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,368 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,385 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-09 08:07:16,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,399 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 08:07:16,402 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 08:07:16,402 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 08:07:16,402 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 08:07:16,403 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (1/1) ... [2024-11-09 08:07:16,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 08:07:16,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 08:07:16,436 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) [2024-11-09 08:07:16,438 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 [2024-11-09 08:07:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 08:07:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 08:07:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 08:07:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 08:07:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 08:07:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 08:07:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 08:07:16,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 08:07:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 08:07:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 08:07:16,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 08:07:16,546 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 08:07:16,549 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 08:07:16,788 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-09 08:07:16,788 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 08:07:16,802 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 08:07:16,802 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-09 08:07:16,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:07:16 BoogieIcfgContainer [2024-11-09 08:07:16,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 08:07:16,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 08:07:16,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 08:07:16,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 08:07:16,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:07:16" (1/3) ... [2024-11-09 08:07:16,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4070ced4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:07:16, skipping insertion in model container [2024-11-09 08:07:16,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:07:16" (2/3) ... [2024-11-09 08:07:16,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4070ced4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:07:16, skipping insertion in model container [2024-11-09 08:07:16,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:07:16" (3/3) ... [2024-11-09 08:07:16,812 INFO L112 eAbstractionObserver]: Analyzing ICFG insertion_sort-2.c [2024-11-09 08:07:16,828 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 08:07:16,829 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-09 08:07:16,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 08:07:16,895 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;@b4babfb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 08:07:16,897 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-09 08:07:16,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 51 states have internal predecessors, (61), 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) [2024-11-09 08:07:16,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 08:07:16,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:07:16,908 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 08:07:16,909 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-09 08:07:16,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:07:16,916 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2024-11-09 08:07:16,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:07:16,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183303400] [2024-11-09 08:07:16,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:07:16,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:07:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 08:07:17,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 08:07:17,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 08:07:17,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183303400] [2024-11-09 08:07:17,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183303400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 08:07:17,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 08:07:17,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 08:07:17,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670501678] [2024-11-09 08:07:17,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 08:07:17,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 08:07:17,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 08:07:17,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 08:07:17,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 08:07:17,183 INFO L87 Difference]: Start difference. First operand has 52 states, 33 states have (on average 1.8484848484848484) internal successors, (61), 51 states have internal predecessors, (61), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 08:07:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 08:07:17,259 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2024-11-09 08:07:17,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 08:07:17,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2024-11-09 08:07:17,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 08:07:17,267 INFO L225 Difference]: With dead ends: 43 [2024-11-09 08:07:17,267 INFO L226 Difference]: Without dead ends: 41 [2024-11-09 08:07:17,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 08:07:17,273 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 32 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 08:07:17,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 31 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 08:07:17,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-09 08:07:17,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-09 08:07:17,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 40 states have internal predecessors, (45), 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) [2024-11-09 08:07:17,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2024-11-09 08:07:17,313 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 4 [2024-11-09 08:07:17,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 08:07:17,313 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2024-11-09 08:07:17,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 08:07:17,318 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2024-11-09 08:07:17,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 08:07:17,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 08:07:17,319 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 08:07:17,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 08:07:17,319 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-09 08:07:17,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 08:07:17,320 INFO L85 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2024-11-09 08:07:17,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 08:07:17,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904622298] [2024-11-09 08:07:17,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 08:07:17,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 08:07:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 08:07:17,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 08:07:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 08:07:17,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 08:07:17,424 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 08:07:17,425 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2024-11-09 08:07:17,426 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2024-11-09 08:07:17,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2024-11-09 08:07:17,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2024-11-09 08:07:17,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2024-11-09 08:07:17,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2024-11-09 08:07:17,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2024-11-09 08:07:17,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2024-11-09 08:07:17,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 18 remaining) [2024-11-09 08:07:17,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 18 remaining) [2024-11-09 08:07:17,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2024-11-09 08:07:17,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2024-11-09 08:07:17,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2024-11-09 08:07:17,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2024-11-09 08:07:17,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2024-11-09 08:07:17,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2024-11-09 08:07:17,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (1 of 18 remaining) [2024-11-09 08:07:17,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK (0 of 18 remaining) [2024-11-09 08:07:17,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 08:07:17,433 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 08:07:17,445 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 08:07:17,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:07:17 BoogieIcfgContainer [2024-11-09 08:07:17,449 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 08:07:17,449 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 08:07:17,449 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 08:07:17,450 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 08:07:17,450 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:07:16" (3/4) ... [2024-11-09 08:07:17,451 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 08:07:17,491 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 08:07:17,492 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 08:07:17,496 INFO L158 Benchmark]: Toolchain (without parser) took 1469.92ms. Allocated memory is still 167.8MB. Free memory was 99.2MB in the beginning and 129.5MB in the end (delta: -30.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 08:07:17,496 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 08:07:17,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.27ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 138.2MB in the end (delta: -39.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-11-09 08:07:17,497 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.75ms. Allocated memory is still 167.8MB. Free memory was 138.2MB in the beginning and 136.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 08:07:17,498 INFO L158 Benchmark]: Boogie Preprocessor took 46.87ms. Allocated memory is still 167.8MB. Free memory was 136.5MB in the beginning and 134.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 08:07:17,498 INFO L158 Benchmark]: RCFGBuilder took 400.99ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 118.8MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 08:07:17,498 INFO L158 Benchmark]: TraceAbstraction took 643.90ms. Allocated memory is still 167.8MB. Free memory was 118.1MB in the beginning and 131.6MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 08:07:17,501 INFO L158 Benchmark]: Witness Printer took 42.37ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 129.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 08:07:17,502 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.27ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 138.2MB in the end (delta: -39.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.75ms. Allocated memory is still 167.8MB. Free memory was 138.2MB in the beginning and 136.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.87ms. Allocated memory is still 167.8MB. Free memory was 136.5MB in the beginning and 134.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 400.99ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 118.8MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 643.90ms. Allocated memory is still 167.8MB. Free memory was 118.1MB in the beginning and 131.6MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 42.37ms. Allocated memory is still 167.8MB. Free memory was 131.6MB in the beginning and 129.5MB 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: [L14] unsigned int SIZE=__VERIFIER_nondet_uint(); [L15] int i, j, k, key; [L16] int v[SIZE]; [L17] j=0 VAL [SIZE=1073741824, j=0, v={4:0}] [L17] COND TRUE j