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_smtcomp.epf -i ../../../trunk/examples/svcomp/memsafety/960521-1_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-25 04:21:13,862 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-25 04:21:13,864 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-25 04:21:13,876 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-25 04:21:13,876 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-25 04:21:13,877 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-25 04:21:13,878 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-25 04:21:13,879 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-25 04:21:13,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-25 04:21:13,882 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-25 04:21:13,883 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-25 04:21:13,883 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-25 04:21:13,884 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-25 04:21:13,885 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-25 04:21:13,886 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-25 04:21:13,889 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-25 04:21:13,891 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-25 04:21:13,893 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-25 04:21:13,894 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-25 04:21:13,895 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-25 04:21:13,898 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-25 04:21:13,903 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_smtcomp.epf [2018-01-25 04:21:13,913 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-25 04:21:13,914 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-25 04:21:13,914 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-25 04:21:13,915 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-25 04:21:13,915 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-25 04:21:13,915 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-25 04:21:13,915 INFO L133 SettingsManager]: * Precise comparison operator=true [2018-01-25 04:21:13,915 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-25 04:21:13,916 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-25 04:21:13,916 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-25 04:21:13,916 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-25 04:21:13,917 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-25 04:21:13,917 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-25 04:21:13,917 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-25 04:21:13,917 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-25 04:21:13,917 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-25 04:21:13,918 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-25 04:21:13,918 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-25 04:21:13,918 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-25 04:21:13,918 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-25 04:21:13,918 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-25 04:21:13,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-25 04:21:13,919 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-25 04:21:13,919 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-25 04:21:13,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-25 04:21:13,920 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-25 04:21:13,920 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-25 04:21:13,920 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-25 04:21:13,920 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-25 04:21:13,920 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-25 04:21:13,920 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-25 04:21:13,921 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-25 04:21:13,921 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-25 04:21:13,922 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-25 04:21:13,922 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-25 04:21:13,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-25 04:21:13,969 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-25 04:21:13,973 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-25 04:21:13,975 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-25 04:21:13,975 INFO L276 PluginConnector]: CDTParser initialized [2018-01-25 04:21:13,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/960521-1_true-valid-memsafety.i [2018-01-25 04:21:14,251 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-25 04:21:14,257 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-25 04:21:14,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-25 04:21:14,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-25 04:21:14,263 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-25 04:21:14,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:21:14" (1/1) ... [2018-01-25 04:21:14,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53037d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:21:14, skipping insertion in model container [2018-01-25 04:21:14,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.01 04:21:14" (1/1) ... [2018-01-25 04:21:14,285 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:21:14,323 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-25 04:21:14,439 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:21:14,454 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-25 04:21:14,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:21:14 WrapperNode [2018-01-25 04:21:14,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-25 04:21:14,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-25 04:21:14,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-25 04:21:14,463 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-25 04:21:14,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:21:14" (1/1) ... [2018-01-25 04:21:14,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:21:14" (1/1) ... [2018-01-25 04:21:14,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:21:14" (1/1) ... [2018-01-25 04:21:14,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:21:14" (1/1) ... [2018-01-25 04:21:14,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:21:14" (1/1) ... [2018-01-25 04:21:14,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:21:14" (1/1) ... [2018-01-25 04:21:14,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:21:14" (1/1) ... [2018-01-25 04:21:14,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-25 04:21:14,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-25 04:21:14,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-25 04:21:14,509 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-25 04:21:14,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.01 04:21:14" (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 [2018-01-25 04:21:14,567 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-25 04:21:14,567 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-25 04:21:14,567 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-01-25 04:21:14,567 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-25 04:21:14,567 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-25 04:21:14,567 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-25 04:21:14,568 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-25 04:21:14,568 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-25 04:21:14,568 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-25 04:21:14,568 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-25 04:21:14,568 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-25 04:21:14,568 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-01-25 04:21:14,568 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-25 04:21:14,568 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-25 04:21:14,568 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-25 04:21:14,791 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-25 04:21:14,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:21:14 BoogieIcfgContainer [2018-01-25 04:21:14,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-25 04:21:14,792 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-01-25 04:21:14,792 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-01-25 04:21:14,792 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-01-25 04:21:14,793 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.01 04:21:14" (1/1) ... [2018-01-25 04:21:14,833 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-25 04:21:23,184 INFO L259 AbstractInterpreter]: Some error location(s) were reachable [2018-01-25 04:21:23,205 WARN L343 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-01-25 04:21:23,207 INFO L268 AbstractInterpreter]: Visited 57 different actions 171 times. Merged at 29 different actions 80 times. Never widened. Found 9 fixpoints after 5 different actions. Largest state had 28 variables. [2018-01-25 04:21:23,209 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-01-25 04:21:23,209 INFO L168 Benchmark]: Toolchain (without parser) took 8957.63 ms. Allocated memory was 300.4 MB in the beginning and 1.1 GB in the end (delta: 763.9 MB). Free memory was 258.3 MB in the beginning and 934.4 MB in the end (delta: -676.1 MB). Peak memory consumption was 87.8 MB. Max. memory is 5.3 GB. [2018-01-25 04:21:23,210 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 300.4 MB. Free memory is still 266.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-25 04:21:23,210 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.63 ms. Allocated memory is still 300.4 MB. Free memory was 257.3 MB in the beginning and 247.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:21:23,210 INFO L168 Benchmark]: Boogie Preprocessor took 45.67 ms. Allocated memory is still 300.4 MB. Free memory was 247.3 MB in the beginning and 245.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:21:23,211 INFO L168 Benchmark]: RCFGBuilder took 283.17 ms. Allocated memory is still 300.4 MB. Free memory was 245.2 MB in the beginning and 227.2 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. [2018-01-25 04:21:23,211 INFO L168 Benchmark]: Abstract Interpretation took 8416.93 ms. Allocated memory was 300.4 MB in the beginning and 1.1 GB in the end (delta: 763.9 MB). Free memory was 227.2 MB in the beginning and 934.4 MB in the end (delta: -707.2 MB). Peak memory consumption was 56.7 MB. Max. memory is 5.3 GB. [2018-01-25 04:21:23,212 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 300.4 MB. Free memory is still 266.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 203.63 ms. Allocated memory is still 300.4 MB. Free memory was 257.3 MB in the beginning and 247.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 45.67 ms. Allocated memory is still 300.4 MB. Free memory was 247.3 MB in the beginning and 245.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 283.17 ms. Allocated memory is still 300.4 MB. Free memory was 245.2 MB in the beginning and 227.2 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 5.3 GB. * Abstract Interpretation took 8416.93 ms. Allocated memory was 300.4 MB in the beginning and 1.1 GB in the end (delta: 763.9 MB). Free memory was 227.2 MB in the beginning and 934.4 MB in the end (delta: -707.2 MB). Peak memory consumption was 56.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 42 LocStat_MAX_WEQGRAPH_SIZE : 8 LocStat_MAX_SIZEOF_WEQEDGELABEL : 2 LocStat_NO_SUPPORTING_EQUALITIES : 654 LocStat_NO_SUPPORTING_DISEQUALITIES : 117 LocStat_NO_DISJUNCTIONS : -84 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 63 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 139 TransStat_NO_SUPPORTING_DISEQUALITIES : 30 TransStat_NO_DISJUNCTIONS : 77 TransStat_MAX_NO_DISJUNCTIONS : 4 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 0.014303 RENAME_VARIABLES(MILLISECONDS) : 0.097149 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.000895 PROJECTAWAY(MILLISECONDS) : 0.033573 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.172819 DISJOIN(MILLISECONDS) : 0.327319 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.121015 ADD_EQUALITY(MILLISECONDS) : 0.030217 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.008021 #CONJOIN_DISJUNCTIVE : 276 #RENAME_VARIABLES : 623 #UNFREEZE : 0 #CONJOIN : 549 #PROJECTAWAY : 372 #ADD_WEAK_EQUALITY : 15 #DISJOIN : 55 #RENAME_VARIABLES_DISJUNCTIVE : 573 #ADD_EQUALITY : 110 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 24 - 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: [L619] int *a, *b; [L620] int n; [L631] n = 32768 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 - 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: [L619] int *a, *b; [L620] int n; [L631] n = 32768 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 [L635] CALL foo () [L623] int i; [L624] i = 0 [L624] COND TRUE i < n [L625] FCALL a[i] = -1 - 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: [L619] int *a, *b; [L620] int n; [L631] n = 32768 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 [L635] CALL foo () [L623] int i; [L624] i = 0 [L624] COND FALSE !(i < n) [L626] i = 0 [L626] COND TRUE i < 32768 - 1 [L627] FCALL b[i] = -1 - 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: [L619] int *a, *b; [L620] int n; [L631] n = 32768 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 [L635] CALL foo () [L623] int i; [L624] i = 0 [L624] COND FALSE !(i < n) [L626] i = 0 [L626] COND FALSE, RET !(i < 32768 - 1) [L635] foo () [L636] FCALL b[-1] - UnprovableResult [Line: 1]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L619] int *a, *b; [L620] int n; [L631] n = 32768 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 [L635] CALL foo () [L623] int i; [L624] i = 0 [L624] COND FALSE !(i < n) [L626] i = 0 [L626] COND FALSE, RET !(i < 32768 - 1) [L635] foo () [L636] FCALL b[-1] [L636] COND FALSE !(b[-1]) [L639] FCALL free(a) [L639] FCALL free(b-1) - UnprovableResult [Line: 1]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: abstract domain could reach this error location. Possible FailurePath: [L619] int *a, *b; [L620] int n; [L631] n = 32768 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 [L635] CALL foo () [L623] int i; [L624] i = 0 [L624] COND FALSE !(i < n) [L626] i = 0 [L626] COND FALSE, RET !(i < 32768 - 1) [L635] foo () [L636] FCALL b[-1] [L636] COND TRUE b[-1] [L637] FCALL free(a) [L637] FCALL free(b) - UnprovableResult [Line: 629]: 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: [L619] int *a, *b; [L620] int n; [L631] n = 32768 [L632] EXPR, FCALL malloc (n * sizeof(*a)) [L632] a = malloc (n * sizeof(*a)) [L633] EXPR, FCALL malloc (n * sizeof(*b)) [L633] b = malloc (n * sizeof(*b)) [L634] EXPR b++ [L634] FCALL *b++ = 0 [L635] CALL foo () [L623] int i; [L624] i = 0 [L624] COND FALSE !(i < n) [L626] i = 0 [L626] COND FALSE, RET !(i < 32768 - 1) [L635] foo () [L636] FCALL b[-1] [L636] COND FALSE !(b[-1]) [L639] FCALL free(a) [L639] FCALL free(b-1) [L640] return 0; - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free 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 - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: free always succeeds For all program executions holds that free 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/960521-1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-Benchmark-0-2018-01-25_04-21-23-219.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-VPDomainBenchmark-0-2018-01-25_04-21-23-219.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/960521-1_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_smtcomp.epf_AbstractInterpretationC.xml/Csv-BenchmarkWithCounters-0-2018-01-25_04-21-23-219.csv Received shutdown request...