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_mostprecise.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 18:57:35,335 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 18:57:35,337 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 18:57:35,353 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 18:57:35,353 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 18:57:35,354 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 18:57:35,355 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 18:57:35,357 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 18:57:35,358 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 18:57:35,359 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 18:57:35,360 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 18:57:35,360 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 18:57:35,360 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 18:57:35,361 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 18:57:35,362 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 18:57:35,364 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 18:57:35,367 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 18:57:35,368 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 18:57:35,370 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 18:57:35,371 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 18:57:35,373 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-24 18:57:35,378 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 18:57:35,379 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 18:57:35,379 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_mostprecise.epf [2018-01-24 18:57:35,389 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 18:57:35,389 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 18:57:35,390 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 18:57:35,390 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 18:57:35,390 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 18:57:35,390 INFO L133 SettingsManager]: * Weq Fattening=true [2018-01-24 18:57:35,390 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 18:57:35,390 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-24 18:57:35,391 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 18:57:35,391 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 18:57:35,391 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 18:57:35,391 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 18:57:35,391 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 18:57:35,392 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 18:57:35,392 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 18:57:35,392 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 18:57:35,392 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 18:57:35,392 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 18:57:35,392 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 18:57:35,392 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 18:57:35,392 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 18:57:35,393 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 18:57:35,393 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 18:57:35,393 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 18:57:35,393 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 18:57:35,393 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 18:57:35,394 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 18:57:35,394 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 18:57:35,394 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 18:57:35,394 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 18:57:35,394 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 18:57:35,394 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 18:57:35,394 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 18:57:35,394 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 18:57:35,395 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 18:57:35,395 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 18:57:35,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 18:57:35,438 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 18:57:35,441 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 18:57:35,442 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 18:57:35,443 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 18:57:35,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_false-valid-deref-read.c [2018-01-24 18:57:35,538 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 18:57:35,542 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 18:57:35,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 18:57:35,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 18:57:35,548 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 18:57:35,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 06:57:35" (1/1) ... [2018-01-24 18:57:35,552 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 06:57:35, skipping insertion in model container [2018-01-24 18:57:35,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 06:57:35" (1/1) ... [2018-01-24 18:57:35,566 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 18:57:35,580 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 18:57:35,692 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 18:57:35,710 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 18:57:35,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 06:57:35 WrapperNode [2018-01-24 18:57:35,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 18:57:35,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 18:57:35,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 18:57:35,717 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 18:57:35,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 06:57:35" (1/1) ... [2018-01-24 18:57:35,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 06:57:35" (1/1) ... [2018-01-24 18:57:35,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 06:57:35" (1/1) ... [2018-01-24 18:57:35,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 06:57:35" (1/1) ... [2018-01-24 18:57:35,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 06:57:35" (1/1) ... [2018-01-24 18:57:35,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 06:57:35" (1/1) ... [2018-01-24 18:57:35,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 06:57:35" (1/1) ... [2018-01-24 18:57:35,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 18:57:35,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 18:57:35,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 18:57:35,750 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 18:57:35,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 06:57:35" (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 18:57:35,795 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 18:57:35,795 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 18:57:35,795 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-01-24 18:57:35,795 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 18:57:35,795 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-24 18:57:35,795 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-24 18:57:35,796 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 18:57:35,796 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 18:57:35,796 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 18:57:35,796 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-01-24 18:57:35,796 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 18:57:35,796 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 18:57:35,796 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 18:57:35,983 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 18:57:35,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 06:57:35 BoogieIcfgContainer [2018-01-24 18:57:35,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 18:57:35,985 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-24 18:57:35,985 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-24 18:57:35,985 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-24 18:57:35,986 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 06:57:35" (1/1) ... [2018-01-24 18:57:36,034 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-24 18:57:37,671 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-24 18:57:37,688 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-24 18:57:37,691 INFO L268 AbstractInterpreter]: Visited 54 different actions 146 times. Merged at 37 different actions 61 times. Never widened. Found 9 fixpoints after 4 different actions. Largest state had 23 variables. [2018-01-24 18:57:37,693 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-24 18:57:37,694 INFO L168 Benchmark]: Toolchain (without parser) took 2155.55 ms. Allocated memory was 306.7 MB in the beginning and 474.0 MB in the end (delta: 167.2 MB). Free memory was 267.6 MB in the beginning and 320.6 MB in the end (delta: -53.0 MB). Peak memory consumption was 114.2 MB. Max. memory is 5.3 GB. [2018-01-24 18:57:37,695 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 306.7 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 18:57:37,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.23 ms. Allocated memory is still 306.7 MB. Free memory was 267.6 MB in the beginning and 258.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. [2018-01-24 18:57:37,695 INFO L168 Benchmark]: Boogie Preprocessor took 31.89 ms. Allocated memory is still 306.7 MB. Free memory was 258.4 MB in the beginning and 257.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. [2018-01-24 18:57:37,696 INFO L168 Benchmark]: RCFGBuilder took 234.99 ms. Allocated memory is still 306.7 MB. Free memory was 257.4 MB in the beginning and 240.2 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. [2018-01-24 18:57:37,696 INFO L168 Benchmark]: Abstract Interpretation took 1708.50 ms. Allocated memory was 306.7 MB in the beginning and 474.0 MB in the end (delta: 167.2 MB). Free memory was 240.2 MB in the beginning and 320.6 MB in the end (delta: -80.5 MB). Peak memory consumption was 86.8 MB. Max. memory is 5.3 GB. [2018-01-24 18:57:37,698 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 306.7 MB. Free memory is still 272.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 174.23 ms. Allocated memory is still 306.7 MB. Free memory was 267.6 MB in the beginning and 258.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.89 ms. Allocated memory is still 306.7 MB. Free memory was 258.4 MB in the beginning and 257.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 5.3 GB. * RCFGBuilder took 234.99 ms. Allocated memory is still 306.7 MB. Free memory was 257.4 MB in the beginning and 240.2 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 1708.50 ms. Allocated memory was 306.7 MB in the beginning and 474.0 MB in the end (delta: 167.2 MB). Free memory was 240.2 MB in the beginning and 320.6 MB in the end (delta: -80.5 MB). Peak memory consumption was 86.8 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 44 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 349 LocStat_NO_SUPPORTING_DISEQUALITIES : 82 LocStat_NO_DISJUNCTIONS : -88 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 60 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 59 TransStat_NO_SUPPORTING_DISEQUALITIES : 9 TransStat_NO_DISJUNCTIONS : 61 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.370280 RENAME_VARIABLES(MILLISECONDS) : 0.254875 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.322539 PROJECTAWAY(MILLISECONDS) : 0.131214 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.072319 DISJOIN(MILLISECONDS) : 0.207736 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.281361 ADD_EQUALITY(MILLISECONDS) : 0.029601 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.027126 #CONJOIN_DISJUNCTIVE : 174 #RENAME_VARIABLES : 375 #UNFREEZE : 0 #CONJOIN : 257 #PROJECTAWAY : 266 #ADD_WEAK_EQUALITY : 8 #DISJOIN : 27 #RENAME_VARIABLES_DISJUNCTIVE : 368 #ADD_EQUALITY : 60 #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) [L13] int a[n], i; [L14] i = 0 [L14] COND TRUE i < size + 1 [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) [L13] int a[n], i; [L14] i = 0 [L14] COND TRUE i < size + 1 [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) [L13] int a[n], i; [L14] i = 0 [L14] COND FALSE !(i < size + 1) [L17] RET return i; [L23] EXPR foo(i, b, i) [L23] FCALL b[i] = foo(i, b, i) - 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) [L13] int a[n], i; [L14] i = 0 [L14] COND FALSE !(i < size + 1) [L17] RET return i; [L23] EXPR foo(i, b, i) [L23] FCALL b[i] = foo(i, b, i) [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-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_mostprecise.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-24_18-57-37-707.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_mostprecise.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-24_18-57-37-707.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_false-valid-deref-read.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_mostprecise.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-24_18-57-37-707.csv Received shutdown request...