java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf -i ../../../trunk/examples/svcomp/array-memsafety/selectionsort_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 16:21:08,798 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 16:21:08,799 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 16:21:08,815 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 16:21:08,815 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 16:21:08,816 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 16:21:08,817 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 16:21:08,819 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 16:21:08,821 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 16:21:08,822 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 16:21:08,822 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 16:21:08,822 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 16:21:08,823 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 16:21:08,824 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 16:21:08,825 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 16:21:08,827 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 16:21:08,829 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 16:21:08,831 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 16:21:08,833 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 16:21:08,834 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 16:21:08,837 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 16:21:08,842 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 16:21:08,842 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 16:21:08,843 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf [2018-01-24 16:21:08,853 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 16:21:08,853 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 16:21:08,854 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 16:21:08,854 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 16:21:08,854 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 16:21:08,855 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-24 16:21:08,855 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 16:21:08,855 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 16:21:08,856 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 16:21:08,856 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 16:21:08,856 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 16:21:08,856 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 16:21:08,856 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 16:21:08,857 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 16:21:08,857 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 16:21:08,857 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 16:21:08,857 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 16:21:08,857 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 16:21:08,857 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 16:21:08,858 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 16:21:08,858 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 16:21:08,858 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 16:21:08,858 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 16:21:08,858 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 16:21:08,859 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:21:08,859 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 16:21:08,859 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 16:21:08,859 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 16:21:08,859 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 16:21:08,860 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 16:21:08,860 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 16:21:08,860 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 16:21:08,860 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 16:21:08,861 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 16:21:08,861 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 16:21:08,897 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 16:21:08,910 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 16:21:08,915 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 16:21:08,917 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 16:21:08,917 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 16:21:08,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/selectionsort_unsafe_false-valid-deref.i [2018-01-24 16:21:09,057 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 16:21:09,061 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 16:21:09,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 16:21:09,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 16:21:09,068 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 16:21:09,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:21:09" (1/1) ... [2018-01-24 16:21:09,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36c3f4da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09, skipping insertion in model container [2018-01-24 16:21:09,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 04:21:09" (1/1) ... [2018-01-24 16:21:09,088 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:21:09,103 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 16:21:09,220 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:21:09,235 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 16:21:09,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09 WrapperNode [2018-01-24 16:21:09,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 16:21:09,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 16:21:09,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 16:21:09,243 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 16:21:09,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ... [2018-01-24 16:21:09,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ... [2018-01-24 16:21:09,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ... [2018-01-24 16:21:09,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ... [2018-01-24 16:21:09,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ... [2018-01-24 16:21:09,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ... [2018-01-24 16:21:09,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ... [2018-01-24 16:21:09,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 16:21:09,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 16:21:09,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 16:21:09,282 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 16:21:09,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 04:21:09" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 16:21:09,330 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 16:21:09,330 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 16:21:09,331 INFO L136 BoogieDeclarations]: Found implementation of procedure SelectionSort [2018-01-24 16:21:09,331 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 16:21:09,331 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 16:21:09,331 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 16:21:09,331 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 16:21:09,331 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 16:21:09,331 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 16:21:09,331 INFO L128 BoogieDeclarations]: Found specification of procedure SelectionSort [2018-01-24 16:21:09,331 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 16:21:09,332 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 16:21:09,332 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 16:21:09,541 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 16:21:09,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:21:09 BoogieIcfgContainer [2018-01-24 16:21:09,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 16:21:09,542 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 16:21:09,542 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 16:21:09,542 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 16:21:09,543 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 04:21:09" (1/1) ... [2018-01-24 16:21:09,582 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 16:21:10,288 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 16:21:10,307 INFO L268 AbstractInterpreter]: Visited 47 different actions 172 times. Merged at 27 different actions 83 times. Never widened. Found 23 fixpoints after 14 different actions. Largest state had 26 variables. [2018-01-24 16:21:10,309 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 16:21:10,310 INFO L168 Benchmark]: Toolchain (without parser) took 1251.74 ms. Allocated memory was 303.6 MB in the beginning and 361.8 MB in the end (delta: 58.2 MB). Free memory was 264.6 MB in the beginning and 334.1 MB in the end (delta: -69.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:21:10,310 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 303.6 MB. Free memory is still 269.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:21:10,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.39 ms. Allocated memory is still 303.6 MB. Free memory was 264.6 MB in the beginning and 255.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. [2018-01-24 16:21:10,311 INFO L168 Benchmark]: Boogie Preprocessor took 38.49 ms. Allocated memory is still 303.6 MB. Free memory was 255.5 MB in the beginning and 254.5 MB in the end (delta: 996.7 kB). Peak memory consumption was 996.7 kB. Max. memory is 5.3 GB. [2018-01-24 16:21:10,311 INFO L168 Benchmark]: RCFGBuilder took 259.93 ms. Allocated memory is still 303.6 MB. Free memory was 254.5 MB in the beginning and 237.8 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. [2018-01-24 16:21:10,311 INFO L168 Benchmark]: Abstract Interpretation took 766.60 ms. Allocated memory was 303.6 MB in the beginning and 361.8 MB in the end (delta: 58.2 MB). Free memory was 237.8 MB in the beginning and 334.1 MB in the end (delta: -96.3 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 16:21:10,313 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 303.6 MB. Free memory is still 269.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 180.39 ms. Allocated memory is still 303.6 MB. Free memory was 264.6 MB in the beginning and 255.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 38.49 ms. Allocated memory is still 303.6 MB. Free memory was 255.5 MB in the beginning and 254.5 MB in the end (delta: 996.7 kB). Peak memory consumption was 996.7 kB. Max. memory is 5.3 GB. * RCFGBuilder took 259.93 ms. Allocated memory is still 303.6 MB. Free memory was 254.5 MB in the beginning and 237.8 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 766.60 ms. Allocated memory was 303.6 MB in the beginning and 361.8 MB in the end (delta: 58.2 MB). Free memory was 237.8 MB in the beginning and 334.1 MB in the end (delta: -96.3 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 37 LocStat_MAX_WEQGRAPH_SIZE : 0 LocStat_MAX_SIZEOF_WEQEDGELABEL : 0 LocStat_NO_SUPPORTING_EQUALITIES : 233 LocStat_NO_SUPPORTING_DISEQUALITIES : 15 LocStat_NO_DISJUNCTIONS : -74 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 53 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 56 TransStat_NO_SUPPORTING_DISEQUALITIES : 6 TransStat_NO_DISJUNCTIONS : 56 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.393229 RENAME_VARIABLES(MILLISECONDS) : 0.429439 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.297461 PROJECTAWAY(MILLISECONDS) : 0.297930 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.001822 DISJOIN(MILLISECONDS) : 0.201729 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.461721 ADD_EQUALITY(MILLISECONDS) : 0.055761 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.036767 #CONJOIN_DISJUNCTIVE : 257 #RENAME_VARIABLES : 537 #UNFREEZE : 0 #CONJOIN : 336 #PROJECTAWAY : 320 #ADD_WEAK_EQUALITY : 5 #DISJOIN : 44 #RENAME_VARIABLES_DISJUNCTIVE : 510 #ADD_EQUALITY : 58 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 6 - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L20] int *a; [L21] int array_size = __VERIFIER_nondet_int(); [L22] CALL SelectionSort(a, array_size) [L4] int i; [L5] i = 0 [L5] COND TRUE i < array_size - 1 [L7] int j, min, temp; [L8] min = i [L9] j = i+1 [L9] COND FALSE !(j < array_size) [L14] FCALL a[i] - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L20] int *a; [L21] int array_size = __VERIFIER_nondet_int(); [L22] CALL SelectionSort(a, array_size) [L4] int i; [L5] i = 0 [L5] COND TRUE i < array_size - 1 [L7] int j, min, temp; [L8] min = i [L9] j = i+1 [L9] COND FALSE !(j < array_size) [L14] FCALL a[i] - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L20] int *a; [L21] int array_size = __VERIFIER_nondet_int(); [L22] CALL SelectionSort(a, array_size) [L4] int i; [L5] i = 0 [L5] COND TRUE i < array_size - 1 [L7] int j, min, temp; [L8] min = i [L9] j = i+1 [L9] COND TRUE j < array_size [L11] FCALL a[j] - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L20] int *a; [L21] int array_size = __VERIFIER_nondet_int(); [L22] CALL SelectionSort(a, array_size) [L4] int i; [L5] i = 0 [L5] COND TRUE i < array_size - 1 [L7] int j, min, temp; [L8] min = i [L9] j = i+1 [L9] COND TRUE j < array_size [L11] FCALL a[j] - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L20] int *a; [L21] int array_size = __VERIFIER_nondet_int(); [L22] CALL SelectionSort(a, array_size) [L4] int i; [L5] i = 0 [L5] COND TRUE i < array_size - 1 [L7] int j, min, temp; [L8] min = i [L9] j = i+1 [L9] COND TRUE j < array_size [L11] FCALL a[j] [L11] FCALL a[min] - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L20] int *a; [L21] int array_size = __VERIFIER_nondet_int(); [L22] CALL SelectionSort(a, array_size) [L4] int i; [L5] i = 0 [L5] COND TRUE i < array_size - 1 [L7] int j, min, temp; [L8] min = i [L9] j = i+1 [L9] COND FALSE !(j < array_size) [L14] EXPR, FCALL a[i] [L14] temp = a[i] [L15] FCALL a[min] - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L20] int *a; [L21] int array_size = __VERIFIER_nondet_int(); [L22] CALL SelectionSort(a, array_size) [L4] int i; [L5] i = 0 [L5] COND TRUE i < array_size - 1 [L7] int j, min, temp; [L8] min = i [L9] j = i+1 [L9] COND FALSE !(j < array_size) [L14] EXPR, FCALL a[i] [L14] temp = a[i] [L15] EXPR, FCALL a[min] [L15] FCALL a[i] = a[min] - UnprovableResult [Line: 1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L20] int *a; [L21] int array_size = __VERIFIER_nondet_int(); [L22] CALL SelectionSort(a, array_size) [L4] int i; [L5] i = 0 [L5] COND TRUE i < array_size - 1 [L7] int j, min, temp; [L8] min = i [L9] j = i+1 [L9] COND FALSE !(j < array_size) [L14] EXPR, FCALL a[i] [L14] temp = a[i] [L15] EXPR, FCALL a[min] [L15] FCALL a[i] = a[min] [L16] FCALL a[min] = temp - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/selectionsort_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_16-21-10-320.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/selectionsort_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_16-21-10-320.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/selectionsort_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_imprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_16-21-10-320.csv Received shutdown request...