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.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-write.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 14:38:25,164 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 14:38:25,191 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 14:38:25,204 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 14:38:25,204 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 14:38:25,205 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 14:38:25,207 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 14:38:25,208 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 14:38:25,211 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 14:38:25,211 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 14:38:25,212 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 14:38:25,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 14:38:25,213 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 14:38:25,214 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 14:38:25,215 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 14:38:25,217 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 14:38:25,219 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 14:38:25,222 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 14:38:25,223 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 14:38:25,224 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 14:38:25,226 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 14:38:25,232 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.epf [2018-01-24 14:38:25,242 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 14:38:25,242 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 14:38:25,243 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 14:38:25,243 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 14:38:25,243 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 14:38:25,244 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 14:38:25,244 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 14:38:25,244 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 14:38:25,245 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 14:38:25,245 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 14:38:25,245 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 14:38:25,245 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 14:38:25,245 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 14:38:25,246 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 14:38:25,246 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 14:38:25,246 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 14:38:25,246 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 14:38:25,246 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 14:38:25,247 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 14:38:25,247 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 14:38:25,247 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 14:38:25,247 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 14:38:25,247 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 14:38:25,248 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 14:38:25,248 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 14:38:25,248 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 14:38:25,248 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 14:38:25,248 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 14:38:25,249 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 14:38:25,249 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 14:38:25,249 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 14:38:25,249 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 14:38:25,250 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 14:38:25,250 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 14:38:25,285 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 14:38:25,298 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 14:38:25,302 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 14:38:25,303 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 14:38:25,304 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 14:38:25,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-write.c [2018-01-24 14:38:25,432 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 14:38:25,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 14:38:25,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 14:38:25,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 14:38:25,448 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 14:38:25,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 02:38:25" (1/1) ... [2018-01-24 14:38:25,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2c73c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:38:25, skipping insertion in model container [2018-01-24 14:38:25,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 02:38:25" (1/1) ... [2018-01-24 14:38:25,467 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 14:38:25,487 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 14:38:25,594 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 14:38:25,610 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 14:38:25,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:38:25 WrapperNode [2018-01-24 14:38:25,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 14:38:25,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 14:38:25,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 14:38:25,617 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 14:38:25,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:38:25" (1/1) ... [2018-01-24 14:38:25,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:38:25" (1/1) ... [2018-01-24 14:38:25,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:38:25" (1/1) ... [2018-01-24 14:38:25,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:38:25" (1/1) ... [2018-01-24 14:38:25,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:38:25" (1/1) ... [2018-01-24 14:38:25,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:38:25" (1/1) ... [2018-01-24 14:38:25,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:38:25" (1/1) ... [2018-01-24 14:38:25,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 14:38:25,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 14:38:25,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 14:38:25,649 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 14:38:25,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 02:38:25" (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 [2018-01-24 14:38:25,695 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 14:38:25,696 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 14:38:25,696 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-01-24 14:38:25,696 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 14:38:25,696 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 14:38:25,696 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 14:38:25,696 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 14:38:25,696 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 14:38:25,696 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 14:38:25,697 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-01-24 14:38:25,697 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 14:38:25,697 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 14:38:25,697 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 14:38:25,883 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 14:38:25,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 02:38:25 BoogieIcfgContainer [2018-01-24 14:38:25,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 14:38:25,884 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 14:38:25,884 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 14:38:25,885 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 14:38:25,885 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 02:38:25" (1/1) ... [2018-01-24 14:38:25,928 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 14:38:27,600 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 14:38:27,620 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 14:38:27,623 INFO L268 AbstractInterpreter]: Visited 55 different actions 196 times. Merged at 39 different actions 104 times. Never widened. Found 9 fixpoints after 4 different actions. Largest state had 23 variables. [2018-01-24 14:38:27,625 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 14:38:27,627 INFO L168 Benchmark]: Toolchain (without parser) took 2194.06 ms. Allocated memory was 302.0 MB in the beginning and 385.9 MB in the end (delta: 83.9 MB). Free memory was 263.0 MB in the beginning and 333.0 MB in the end (delta: -70.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 5.3 GB. [2018-01-24 14:38:27,627 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 14:38:27,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.86 ms. Allocated memory is still 302.0 MB. Free memory was 263.0 MB in the beginning and 253.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. [2018-01-24 14:38:27,628 INFO L168 Benchmark]: Boogie Preprocessor took 31.42 ms. Allocated memory is still 302.0 MB. Free memory was 253.8 MB in the beginning and 252.8 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 5.3 GB. [2018-01-24 14:38:27,628 INFO L168 Benchmark]: RCFGBuilder took 235.51 ms. Allocated memory is still 302.0 MB. Free memory was 252.8 MB in the beginning and 235.9 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 5.3 GB. [2018-01-24 14:38:27,629 INFO L168 Benchmark]: Abstract Interpretation took 1741.25 ms. Allocated memory was 302.0 MB in the beginning and 385.9 MB in the end (delta: 83.9 MB). Free memory was 235.9 MB in the beginning and 333.0 MB in the end (delta: -97.1 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 14:38:27,631 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 302.0 MB. Free memory is still 268.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 176.86 ms. Allocated memory is still 302.0 MB. Free memory was 263.0 MB in the beginning and 253.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.42 ms. Allocated memory is still 302.0 MB. Free memory was 253.8 MB in the beginning and 252.8 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 5.3 GB. * RCFGBuilder took 235.51 ms. Allocated memory is still 302.0 MB. Free memory was 252.8 MB in the beginning and 235.9 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 1741.25 ms. Allocated memory was 302.0 MB in the beginning and 385.9 MB in the end (delta: 83.9 MB). Free memory was 235.9 MB in the beginning and 333.0 MB in the end (delta: -97.1 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 : 45 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 331 LocStat_NO_SUPPORTING_DISEQUALITIES : 84 LocStat_NO_DISJUNCTIONS : -90 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 61 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 60 TransStat_NO_SUPPORTING_DISEQUALITIES : 9 TransStat_NO_DISJUNCTIONS : 62 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.436188 RENAME_VARIABLES(MILLISECONDS) : 0.247461 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.393459 PROJECTAWAY(MILLISECONDS) : 0.147991 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.068127 DISJOIN(MILLISECONDS) : 0.307516 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.273414 ADD_EQUALITY(MILLISECONDS) : 0.034866 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.021045 #CONJOIN_DISJUNCTIVE : 256 #RENAME_VARIABLES : 563 #UNFREEZE : 0 #CONJOIN : 371 #PROJECTAWAY : 374 #ADD_WEAK_EQUALITY : 8 #DISJOIN : 52 #RENAME_VARIABLES_DISJUNCTIVE : 556 #ADD_EQUALITY : 61 #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: [L21] int i, b[100]; [L22] i = 0 [L22] COND FALSE !(i < 100) [L25] i = 0 [L25] COND TRUE i < 100 [L26] FCALL b[i] - UnprovableResult [Line: 15]: Unable to prove that array index is always in bounds Unable to prove that array index is always in bounds Reason: abstract domain could reach this error location. Possible FailurePath: [L21] int i, b[100]; [L22] i = 0 [L22] COND TRUE i < 100 [L23] CALL foo(i, b, i + 1) [L13] int a[n], i; [L14] i = 0 [L14] COND TRUE i < size [L15] 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: [L21] int i, b[100]; [L22] i = 0 [L22] COND TRUE i < 100 [L23] CALL foo(i, b, i + 1) [L13] int a[n], i; [L14] i = 0 [L14] COND TRUE i < size [L15] a[i] [L15] FCALL b[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: [L21] int i, b[100]; [L22] i = 0 [L22] COND TRUE i < 100 [L23] CALL, EXPR foo(i, b, i + 1) [L13] int a[n], i; [L14] i = 0 [L14] COND FALSE !(i < size) [L17] RET return i; [L23] EXPR foo(i, b, i + 1) [L23] FCALL b[i] = foo(i, b, i + 1) - UnprovableResult [Line: 20]: 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: [L21] int i, b[100]; [L22] i = 0 [L22] COND TRUE i < 100 [L23] CALL, EXPR foo(i, b, i + 1) [L13] int a[n], i; [L14] i = 0 [L14] COND FALSE !(i < size) [L17] RET return i; [L23] EXPR foo(i, b, i + 1) [L23] FCALL b[i] = foo(i, b, i + 1) [L22] i++ [L22] COND FALSE !(i < 100) [L25] i = 0 [L25] COND FALSE !(i < 100) [L30] return 0; [L30] return 0; - 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: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) 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/ArraysOfVariableLength_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_14-38-27-640.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_14-38-27-640.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-write.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_14-38-27-640.csv Received shutdown request...