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/mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf -i ../../../trunk/examples/svcomp/array-memsafety/mult_array_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-47db877 [2018-01-23 16:08:25,107 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-23 16:08:25,109 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-23 16:08:25,121 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-23 16:08:25,122 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-23 16:08:25,123 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-23 16:08:25,124 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-23 16:08:25,125 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-23 16:08:25,127 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-23 16:08:25,127 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-23 16:08:25,128 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-23 16:08:25,128 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-23 16:08:25,129 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-23 16:08:25,130 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-23 16:08:25,131 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-23 16:08:25,133 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-23 16:08:25,136 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-23 16:08:25,138 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-23 16:08:25,139 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-23 16:08:25,140 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-23 16:08:25,143 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-23 16:08:25,147 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-23 16:08:25,148 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-23 16:08:25,148 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/mempurity-32bit-Automizer_Camel+AI_EQ_imprecise.epf [2018-01-23 16:08:25,158 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-23 16:08:25,159 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-23 16:08:25,159 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-23 16:08:25,160 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-23 16:08:25,160 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-23 16:08:25,160 INFO L133 SettingsManager]: * Deactivate Weak Equivalences=true [2018-01-23 16:08:25,160 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-23 16:08:25,160 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-23 16:08:25,161 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-23 16:08:25,161 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-23 16:08:25,162 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-23 16:08:25,162 INFO L133 SettingsManager]: * Check allocation purity=true [2018-01-23 16:08:25,162 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-23 16:08:25,162 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-23 16:08:25,162 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-23 16:08:25,163 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-23 16:08:25,163 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-23 16:08:25,163 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-23 16:08:25,163 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-23 16:08:25,163 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-23 16:08:25,164 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-23 16:08:25,164 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-23 16:08:25,164 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-23 16:08:25,164 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-23 16:08:25,164 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-23 16:08:25,165 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-23 16:08:25,165 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-23 16:08:25,165 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-23 16:08:25,165 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-23 16:08:25,165 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-23 16:08:25,166 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-23 16:08:25,166 INFO L133 SettingsManager]: * Stop after first violation was found=false [2018-01-23 16:08:25,166 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-23 16:08:25,166 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-23 16:08:25,166 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-23 16:08:25,167 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-23 16:08:25,167 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-23 16:08:25,168 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-23 16:08:25,203 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-23 16:08:25,213 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-23 16:08:25,216 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-23 16:08:25,217 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-23 16:08:25,218 INFO L276 PluginConnector]: CDTParser initialized [2018-01-23 16:08:25,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/mult_array_unsafe_false-valid-deref.i [2018-01-23 16:08:25,379 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-23 16:08:25,384 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-23 16:08:25,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-23 16:08:25,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-23 16:08:25,390 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-23 16:08:25,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 04:08:25" (1/1) ... [2018-01-23 16:08:25,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e99cb12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:25, skipping insertion in model container [2018-01-23 16:08:25,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 04:08:25" (1/1) ... [2018-01-23 16:08:25,409 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 16:08:25,448 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-23 16:08:25,562 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 16:08:25,577 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-23 16:08:25,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:25 WrapperNode [2018-01-23 16:08:25,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-23 16:08:25,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-23 16:08:25,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-23 16:08:25,585 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-23 16:08:25,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:25" (1/1) ... [2018-01-23 16:08:25,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:25" (1/1) ... [2018-01-23 16:08:25,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:25" (1/1) ... [2018-01-23 16:08:25,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:25" (1/1) ... [2018-01-23 16:08:25,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:25" (1/1) ... [2018-01-23 16:08:25,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:25" (1/1) ... [2018-01-23 16:08:25,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:25" (1/1) ... [2018-01-23 16:08:25,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-23 16:08:25,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-23 16:08:25,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-23 16:08:25,618 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-23 16:08:25,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 04:08:25" (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 [2018-01-23 16:08:25,664 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-23 16:08:25,664 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-23 16:08:25,664 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-23 16:08:25,664 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-23 16:08:25,664 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-23 16:08:25,665 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-23 16:08:25,665 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-23 16:08:25,665 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-23 16:08:25,665 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-23 16:08:25,665 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-23 16:08:25,665 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-23 16:08:25,666 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-23 16:08:25,879 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-23 16:08:25,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 04:08:25 BoogieIcfgContainer [2018-01-23 16:08:25,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-23 16:08:25,880 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-23 16:08:25,880 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-23 16:08:25,880 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-23 16:08:25,881 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.01 04:08:25" (1/1) ... [2018-01-23 16:08:25,926 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-23 16:08:26,954 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-23 16:08:26,966 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:26,970 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:26,970 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:26,976 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:26,976 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:26,977 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-23 16:08:26,979 INFO L268 AbstractInterpreter]: Visited 44 different actions 217 times. Merged at 30 different actions 145 times. Widened at 1 different actions 1 times. Found 17 fixpoints after 3 different actions. Largest state had 29 variables. [2018-01-23 16:08:26,982 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-23 16:08:26,983 INFO L168 Benchmark]: Toolchain (without parser) took 1603.37 ms. Allocated memory was 303.6 MB in the beginning and 372.8 MB in the end (delta: 69.2 MB). Free memory was 261.9 MB in the beginning and 262.9 MB in the end (delta: -1.0 MB). Peak memory consumption was 68.2 MB. Max. memory is 5.3 GB. [2018-01-23 16:08:26,984 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 303.6 MB. Free memory is still 267.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-23 16:08:26,985 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.30 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 250.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-23 16:08:26,985 INFO L168 Benchmark]: Boogie Preprocessor took 33.01 ms. Allocated memory is still 303.6 MB. Free memory was 250.7 MB in the beginning and 249.7 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. [2018-01-23 16:08:26,985 INFO L168 Benchmark]: RCFGBuilder took 262.34 ms. Allocated memory is still 303.6 MB. Free memory was 249.7 MB in the beginning and 233.1 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 5.3 GB. [2018-01-23 16:08:26,986 INFO L168 Benchmark]: Abstract Interpretation took 1102.06 ms. Allocated memory was 303.6 MB in the beginning and 372.8 MB in the end (delta: 69.2 MB). Free memory was 233.1 MB in the beginning and 262.9 MB in the end (delta: -29.8 MB). Peak memory consumption was 39.4 MB. Max. memory is 5.3 GB. [2018-01-23 16:08:26,987 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 303.6 MB. Free memory is still 267.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 199.30 ms. Allocated memory is still 303.6 MB. Free memory was 260.9 MB in the beginning and 250.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 33.01 ms. Allocated memory is still 303.6 MB. Free memory was 250.7 MB in the beginning and 249.7 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 5.3 GB. * RCFGBuilder took 262.34 ms. Allocated memory is still 303.6 MB. Free memory was 249.7 MB in the beginning and 233.1 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 1102.06 ms. Allocated memory was 303.6 MB in the beginning and 372.8 MB in the end (delta: 69.2 MB). Free memory was 233.1 MB in the beginning and 262.9 MB in the end (delta: -29.8 MB). Peak memory consumption was 39.4 MB. 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 : 359 LocStat_NO_SUPPORTING_DISEQUALITIES : 73 LocStat_NO_DISJUNCTIONS : -74 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 48 TransStat_MAX_WEQGRAPH_SIZE : 0 TransStat_MAX_SIZEOF_WEQEDGELABEL : 0 TransStat_NO_SUPPORTING_EQUALITIES : 60 TransStat_NO_SUPPORTING_DISEQUALITIES : 15 TransStat_NO_DISJUNCTIONS : 50 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.565838 RENAME_VARIABLES(MILLISECONDS) : 0.023903 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.341049 PROJECTAWAY(MILLISECONDS) : 1.127868 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.002245 DISJOIN(MILLISECONDS) : 0.197349 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.047503 ADD_EQUALITY(MILLISECONDS) : 0.078533 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.067970 #CONJOIN_DISJUNCTIVE : 347 #RENAME_VARIABLES : 694 #UNFREEZE : 0 #CONJOIN : 426 #PROJECTAWAY : 399 #ADD_WEAK_EQUALITY : 11 #DISJOIN : 13 #RENAME_VARIABLES_DISJUNCTIVE : 693 #ADD_EQUALITY : 58 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 9 - UnprovableResult [Line: 1]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: abstract domain could reach this error location. Possible FailurePath: - UnprovableResult [Line: 540]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: abstract domain could reach this error location. Possible FailurePath: [L541] int i, j; [L542] int length = __VERIFIER_nondet_int(); [L543] COND TRUE length < 1 || length >= 2147483647 / sizeof(int) [L543] length = 1 [L544] int fac = __VERIFIER_nondet_int(); [L545] COND TRUE fac < 1 || fac >= 2147483647 / (sizeof(int) * length) [L545] fac = 1 [L546] EXPR, FCALL __builtin_alloca (length) [L546] int *arr = __builtin_alloca (length); [L547] EXPR, FCALL __builtin_alloca (fac*length) [L547] int *arr2 = __builtin_alloca (fac*length); [L548] COND FALSE !(!arr || !arr2) [L549] i=0 [L549] COND FALSE !(i= 2147483647 / sizeof(int) [L543] length = 1 [L544] int fac = __VERIFIER_nondet_int(); [L545] COND TRUE fac < 1 || fac >= 2147483647 / (sizeof(int) * length) [L545] fac = 1 [L546] EXPR, FCALL __builtin_alloca (length) [L546] int *arr = __builtin_alloca (length); [L547] EXPR, FCALL __builtin_alloca (fac*length) [L547] int *arr2 = __builtin_alloca (fac*length); [L548] COND FALSE !(!arr || !arr2) [L549] i=0 [L549] COND FALSE !(i